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Preprint ARTICLE | doi:10.20944/preprints201805.0111.v1

Exposure to Environmental Tobacco Smoke and Effects on Physical and Mental Health of Slovak School Children

Ludmila Sevcikova, Jana Babjakova, Jana Jurkovicova, Martin Samohyl, Zuzana Stefanikova, Erika Machacova, Diana Vondrova, Etela Janekova, Katarina Hirosova, Alexandra Filova, Michael Weitzman, Lubica Argalasova

Subject: Public Health And Healthcare, Public, Environmental And Occupational Health Keywords: Environmental Tobacco Smoke (ETS); Slovak school children; mental health; physical health; Columbia Impairment Scale; Behavioral Problem Index

Online: 7 May 2018 (09:23:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201805.0258.v2

Revisiting the Derivation of Heisenberg's Uncertainty Principle: The Collapse of Uncertainty at the Planck Scale

Espen Haug

Subject: Physical Sciences, Thermodynamics Keywords: Heisenberg's uncertainty principle; certainty; wave function; Planck scale; Planck mass; Planck particle; Bell's Inequality; superposition; entropy; Compton clock

Online: 5 September 2018 (09:34:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0619.v1

Prevalence of Stress in Healthcare Professional During COVID-19 Pandemic in Northeast México: A Remote Fast Survey Evaluation, the Use of an Adapted COVID-19 Stress Scale

Juan Luis Delgado-Gallegos, Rene de Jesus Montemayor-Garza, Gerardo R. Padilla-Rivas, Hector Franco-Villareal, Jose Francisco Islas

Subject: Medicine And Pharmacology, Psychiatry And Mental Health Keywords: COVID-19 Mexico; stress in healthcare professionals; COVID-19 stress scale

Online: 26 September 2020 (08:07:00 CEST)

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Preprint ESSAY | doi:10.20944/preprints201612.0083.v1

Depression Measurement Instruments: An Overview of the Top Depression Rating Scales

John H. Morgan

Subject: Social Sciences, Sociology Keywords: depression; measurement scale; ratings; literature review

Online: 16 December 2016 (07:57:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints201607.0068.v1

SOCIO-ECONOMIC BENEFIT OF WETLAND ECOSYSTEM (IN CASE OF LAKE ZIWAY)

Gezahegne Gebremedhin, Satishkumer Belliethathan

Subject: Business, Economics And Management, Economics Keywords: Fishermen; Lake Ziway; Small scale irrigation users; Socioeconomic benefit; Wetland ecosystem service

Online: 22 July 2016 (16:02:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201811.0113.v2

Deforestation and Forest Degradation Due to Gold Mining in the Peruvian Amazon: A 34-Year Perspective

Jorge Caballero Espejo, Max Messinger, Francisco Roman Dañobeytia, Cesar Ascorra, Luis E. Fernandez, Miles Silman

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Landsat; artisanal-scale gold mining; infrastructure; protected areas; commodity

Online: 30 November 2018 (10:02:42 CET)

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Preprint SHORT NOTE | doi:10.20944/preprints202005.0287.v1

The Impacts of COVID-19 to Small Scale Fisheries in Tun Mustapha Park, Sabah, Malaysia; What Do We Know So Far?

Joannie Jomitol, Adam J. Payne, Sarmalin Sakirun, Mohd. Omar Bural

Subject: Biology And Life Sciences, Aquatic Science Keywords: COVID-19; small scale fisheries; artisarnal fishers; coastal communities; marine protected area; Malaysia; fisheries; impacts

Online: 17 May 2020 (08:46:10 CEST)

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Preprint REVIEW | doi:10.20944/preprints201609.0096.v2

Quantum Cosmology vs. Observational Cosmology (A Simple, Curious and Advanced Approach)

U. V. S. Seshavatharam, S. Lakshminarayana

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: big bang; planck scale Hubble parameter; quantum cosmology; Mach’s principle; holographic principle; observational cosmology; super luminal expansion speed; super luminal rotation speed; dark energy; cosmic rotational kinetic energy; cosmic microwave back

Online: 8 October 2016 (10:26:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201708.0078.v1

Rainforest to Reef: A Landscape-scale Approach to Coastal Ecotourism in Malaysia

Lincoln Garland, Mike Wells, Keith French, John Dawkins

Subject: Environmental And Earth Sciences, Geography Keywords: Malaysia; Endau Rompin; landscape-scale management; ecotourism; rainforest to reef; Tiger

Online: 23 August 2017 (09:14:40 CEST)

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Working Paper ARTICLE

Period Doubling Phenomenon as the Origin of Electron Properties

Ari Lehto

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: period doubling; electron structure; elementary charge; electron magnetic moment; fine structure constant; Planck scale; Standard Model

Online: 20 August 2020 (04:08:27 CEST)

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Preprint REVIEW | doi:10.20944/preprints201810.0763.v1

Overview of Microbial Fuel Cell (MFC) Recent Advancement from Fundamentals to Applications: MFC Designs, Major Elements, and Scalability

Sami G. A. Flimban, Taeyoung Kim, Iqbal Mohammad Ibrahim Ismail, Sang-Eun Oh

Subject: Engineering, Energy And Fuel Technology Keywords: Microbial fuel cell (MFC); fuel cell elements; design; energy generation; Scaling up; configuration

Online: 2 November 2018 (10:04:38 CET)

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Working Paper REVIEW

Ten Golden Rules for Reforestation to Optimise Carbon Sequestration, Biodiversity Recovery and Livelihood Benefits

Alice Di Sacco, Kate Hardwick, David Blakesley, Pedro H. S. Brancalion, Elinor Breman, Loic Cecilio Rebola, Susan Chomba, Kingsley Dixon, Stephen Elliott, Godfrey Ruyonga, Kirsty Shaw, Paul Smith, Rhian J. Smith, Alexandre Antonelli

Subject: Biology And Life Sciences, Forestry Keywords: Afforestation; Climate change mitigation; Ecological Restoration; Forest landscape restoration; Large-scale tree planting; Natural regeneration; Nature-based solutions; Stakeholders participation

Online: 5 September 2020 (08:01:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202012.0221.v1

Building a Laboratory at a Primarily Undergraduate Institution (PUI)

Caroline Dahlberg, Christina King-Smith, Blake Riggs

Subject: Social Sciences, Education Keywords: PUI (primarily undergraduate institution); laboratory; start-up; negotiation; undergraduate; support; funding; equipment; mentorship; community

Online: 9 December 2020 (11:16:48 CET)

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Scientists who are interested in building research programs at primarily-undergraduate institutions (PUIs) have unique considerations compared to colleagues at research-intensive (R1) institutions. Maintaining a research program at a PUI holds unique challenges that should be considered before prospective faculty go on the job market, as they negotiate a job offer, and after they begin a new position. In this article we describe some of the considerations that aspiring and newly hired faculty should keep in mind as they plan out how they will set up a laboratory as a new Principle Investigator (PI) at a PUI. Anyone hoping to start a research program at a PUI should understand both the timeframe of interviews, job offers, and negotiations and the challenges and rewards of working with undergraduate researchers. Once a job is offered, candidates should be aware of the range of negotiable terms that can be part of a start-up package. Space and equipment considerations are also important, and making the most of shared spaces, existing infrastructure, and deals can extend the purchasing power of start-up funds as a new PIs builds their lab. PUIs’ focus on undergraduate education and mentorship leads to important opportunities for collaboration, funding, and bringing research projects directly into undergraduate teaching laboratories. A major focus of any new laboratory leader must be on building a productive, equitable, and supportive laboratory community. Equitable onboarding, mentorship plans, and formalized expectations, can all help build a productive and sustainable laboratory research program. However, important considerations about safety, inclusion, student schedules, and a PI’s own professional commitments are also extremely important concerns when working with undergraduates in research. A successful research program at a PUI will bring students into meaningful scientific inquiry and requires insights and skills that are often not the focus of scientific training. This article aims to describe the scope of setting up a new laboratory as a way to alleviate some of the burden that new and prospective faculty often feel.

Preprint ARTICLE | doi:10.20944/preprints202006.0143.v1

Assessing Impacts of COVID-19 on Aquatic Food System and Small-Scale Fisheries in Bangladesh

Atiqur Rahman Sunny, Sharif Ahmed Sazzad, Gopal Chandra Datta, Ashoke Kumar Sarker, Md. Ashrafuzzaman, Shamsul H. Prodhan

Subject: Biology And Life Sciences, Aquatic Science Keywords: COVID-19; Corona virus; Aquatic food system; Food security; Small-scale fisheries; Bangladesh

Online: 12 June 2020 (08:25:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201702.0059.v1

Fusing Observational, Satellite Remote Sensing and Air Quality Model Simulated Data to Estimate Spatiotemporal Variations of PM2.5 Exposure in China

Tao Xue, Yixuan Zheng, Guannan Geng, Bo Zheng, Xujia Jiang, Qiang Zhang, Kebin He

Subject: Environmental And Earth Sciences, Environmental Science Keywords: fine particulate matter (PM2.5); aerosol optical depth; community multi-scale air quality (CMAQ) model; data fusion; exposure assessment

Online: 16 February 2017 (08:58:09 CET)

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Preprint ARTICLE | doi:10.20944/preprints201702.0013.v1

Morphological, Structural and Optical Characterization of Bottom-Up Growth of Ag-WO₃ Core-Shell Nano-Cube Heterostructures

Muhammad A. Imam, Nitin Chopra

Subject: Chemistry And Materials Science, Nanotechnology Keywords: nano-cube; heterostructures; bottom-up growth; electron microscopy; bandgap; Ag-WO3

Online: 4 February 2017 (09:23:00 CET)

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Preprint ARTICLE | doi:10.20944/preprints201701.0028.v9

Revealing the Phenomena of Heat and Photon Energy on Dealing Matter at Atomic Level

Mubarak Ali

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: heat energy; photon energy; fundamental forces; nanoscale phenomenon; atomic scale phenomenon; electron scale phenomenon

Online: 8 December 2017 (03:46:45 CET)

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Technology is in the way to reach in its climax but the basic understanding of science in many phenomena is still awaited even though the nature witnesses it. Scientific research reveals strong analogy between photon and electron. When an atom deals neutral state, it levitates electron of outer ring from the back surface while placing the bit-energy at front surface. Gravitation behavior of that electron starts at the centre of relaxation point by including the force of side pole where the pulling force of nearby unfilled state of that atom from the front surface results into depict forcing energy shape like Gaussian distribution symbol with both ends turned called unit photon. The inertia is being involved at each stage of changing direction of that electron by introducing the disappearances of forces of two poles against the appearances of forces of two opposite poles during rest to motion and motion to rest in the first half-cycle. The same is the case in the second half-cycle of that electron during rest to motion and motion to rest but it is under different introduction of the disappearances of forces against appearances of forces. However, at stage of levitating or gravitating period of electron, only one force is being involved at one time where the opposite force is disappeared. The uninterrupted confined inter-state electron-dynamics of atom under the availability of several bits of bit-energy results into generate forcing energy shape like a wave. Two bits of bit-energy where shape of bit for first half-cycle is like integral symbol and second half-cycle is like opposite integral symbol which are being placed along the configuring trajectory of inter-state electron-dynamics during forward-direction cycle and two bits of bit-energy shape in opposite order are being placed along the trajectory of inter-state electron-dynamics during back-direction cycle. Generating forcing energy of unit photon in each cycle is pushing to the rear side by remaining connected till the electron is not restoring the state of rest. Silicon atom is considered as a model system under neutral state. Uninterrupted confined inter-state electron-dynamics result into generate forcing energy that can travel immeasurable length and unavailability of necessitating bit-energy at any interrupted stage result into generate an overt photon. Inter-state electron-dynamics for at least two cycles generate an overt photon –a photon length twice to unit photon. Under certain interaction of unit photon, it divides equally into two bits of bit-energy instead of dividing into tits and bits of heat. The mechanism of generating photon characteristic current by the electron of neutral state atom validates that atoms are four-dimensional discs at centre of dealing no force. An isolated electron is being grounded under directed forcing energy to impinge a neutral state atom where the gained instantaneous velocity under merged energy resulting into distort atom at that point. Matter changes the role of energy and force under various sorts of interactions. Here, heat energy and photon energy explore matter at atomic and electron levels, thus, devise basis of science to describe.

Preprint REVIEW | doi:10.20944/preprints202108.0218.v1

Nanoparticles for Cancer Therapy: Current Progress and Challenges

Shreelaxmi Gavas, Sameer Quazi, Tomasz Karpiński

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: cancer; nanoparticles; chemotherapy; cellular targeting; multidrug resistance; cryosurgery; scale-up

Online: 10 August 2021 (09:44:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201611.0052.v1

Feature Extraction of Ship Radiated Noise Based on Permutation Entropy of the Intrinsic Mode Function with the Highest Energy

Yu-Xing Li, Ya-An Li, Zhe Chen, Xiao Chen

Subject: Physical Sciences, Acoustics Keywords: empirical mode decomposition; intrinsic mode function; permutation entropy; multi-scale permutation entropy; feature extraction

Online: 9 November 2016 (10:24:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints201701.0130.v1

Crucial Mechanism to the Eutectoid Transformation of Wüstite Scale on Low Carbon Steel

Szu-Ning Lin, Chao-Chi Huang, Min-Tao Wu, Wei-Lin Wang, Ker-Chang Hsieh

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: wüstite; magnetite; eutectoid transformation; oxide scale; hot strip mill

Online: 29 January 2017 (10:47:49 CET)

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Preprint ARTICLE | doi:10.20944/preprints201703.0067.v1

Global Existence, Exponential Decay and Finite Time Blow-up of Solutions for a Class of Semilinear Pseudo-parabolic Equations with Conical Degeneration

Gang Li, Jiangyong Yu, Wenjun Liu

Subject: Computer Science And Mathematics, Analysis Keywords: blow-up; semilinear pseudo-parabolic equations; critical initial energy; conical degeneration

Online: 13 March 2017 (09:56:13 CET)

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Preprint REVIEW | doi:10.20944/preprints201702.0002.v1

Tests and Problems of the Standard Model in Cosmology

Martin Lopez-Corredoira

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Cosmology; Observational cosmology; Origin, formation, and abundances of the elements; dark matter; dark energy; superclusters; large-scale structure of the Universe

Online: 1 February 2017 (16:06:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints201612.0131.v1

Comparing the Incomparable: ‘Speaking Out’ and the Use of Drawings in Notebooks by Physicists

Harmen Hollestelle

Subject: Arts And Humanities, Philosophy Keywords: physicists, experimental set-up, drawings, spirituality, interaction

Online: 28 December 2016 (10:24:28 CET)

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Preprint ARTICLE | doi:10.20944/preprints201703.0076.v1

Mercury Levels in Human Hair and Farmed Fish near Artisanal and Small-Scale Gold Mining Communities in the Madre de Dios River Basin, Peru

Aubrey L. Langeland, Rebecca D. Hardin, Richard L. Neitzel

Subject: Biology And Life Sciences, Toxicology Keywords: mercury; exposure assessment; human health; artisanal and small-scale gold mining

Online: 14 March 2017 (08:40:59 CET)

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Artisanal and small-scale gold mining (ASGM) has been an important source of income for communities in the Madre de Dios River Basin in Peru for hundreds of years. However, in recent decades, the scale of ASGM activities in the region has increased dramatically, and exposures to a variety of occupational and environmental hazards related to ASGM, including mercury, are becoming more widespread. The aims of our study were to: (1) examine patterns in the total hair mercury level of human participants in several communities in the region and compare these results to the 2.2 µg/g total hair mercury level equivalent to the World Health Organization (WHO) Expert Committee of Food Additives (JECFA)’s Provisional Tolerable Weekly Intake (PTWI); and (2), to measure the mercury levels of paco (Piaractus brachypomus) fish raised in local aquaculture ponds, in order to compare these levels to the EPA Fish Tissue Residue Criterion of 0.3 µg Hg/g fish (wet weight). We collected hair samples from 80 participants in four communities (one control and three where ASGM activities occurred) in the region, and collected 111 samples from fish raised in 24 local aquaculture farms. We then analyzed the samples for total mercury. Total mercury levels in hair were statistically significantly higher in the mining communities than in the control community, and increased with increasing distance away from the Madre de Dios headwaters (as the crow flies), did not differ by sex, and frequently exceeded the reference level. Regression analyses indicated that higher hair mercury levels were associated with residence in ASGM communities. The analysis of paco fish samples found no samples that exceeded the EPA tissue residue criterion. Collectively, these results align with other recent studies showing that ASGM activities are associated with elevated human mercury exposure. The fish farmed through the relatively new process of aquaculture in ASGM areas appeared to have little potential to contribute to human mercury exposure. More research is needed on human health risks associated with ASGM to discern occupational, residential, and nutritional exposure, especially through tracking temporal changes in mercury levels as fish ponds age, and assessing levels in different farmed fish species. Additionally, research is needed to definitively determine that elevated mercury levels in humans and fish result from the elemental mercury from mining, rather than from a different source, such as the mercury released from soil erosion during deforestation events from mining or other activities.

Preprint ARTICLE | doi:10.20944/preprints201702.0067.v1

Influences of Multiscale Land Cover Characteristics and Specific Conductivity on Fish Assemblages in the Nolichucky River Watershed, Tennessee

Hayley S. Gotwald, J. Brian Alford

Subject: Environmental And Earth Sciences, Environmental Science Keywords: spatial scale; CCA; indicator species analysis; land use; SWAT; bioassessment

Online: 17 February 2017 (07:33:16 CET)

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Preprint ARTICLE | doi:10.20944/preprints201703.0152.v1

Face Verification with Multi-Task and Multi-Scale Features Fusion

Xiaojun Lu, Yue Yang, Weilin Zhang, Qi Wang, Yang Wang

Subject: Computer Science And Mathematics, Information Systems Keywords: deep convolutional neural networks; identification; semi-verification; multi-scale features; face verification

Online: 20 March 2017 (09:06:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints201906.0036.v1

A Global Seamless DEM Based on Multi-Source Data Fusion (GSDEM-30): Product Generation and Evaluation

Linwei Yue, Huanfeng Shen, Lu Liu, Qiangqiang Yuan, Liangpei Zhang

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: digital elevation models; multi-source fusion; multi-scale fusion; global evaluation; accuracy validation.

Online: 5 June 2019 (10:26:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201702.0057.v2

Global Existence, Asymptotic Behavior and Blow-up of Solutions for a Suspension Bridge Equation with Nonlinear Damping and Source Terms

Wenjun Liu, Hefeng Zhuang

Subject: Computer Science And Mathematics, Analysis Keywords: suspension bridges; fourth order wave equation; nonlinear damping; source term; existence; blow up

Online: 24 February 2017 (09:06:57 CET)

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Preprint REVIEW | doi:10.20944/preprints202005.0058.v1

Towards Engineering Biosystems with Emergent Collective Functions

Thomas E. Gorochowski, Sabine Hauert, Jan-Ulrich Kreft, Lucia Marucci, Namid R. Stillman, T-Y. Dora Tang, Lucia Bandiera, Vittorio Bartoli, Daniel O. R. Dixon, Alex J. H. Fedorec, Harold Fellermann, Alexander G. Fletcher, Tim Foster, Luca Giuggioli, Antoni Matyjaszkiewicz, Scott McCormick, Sandra Montes Olivas, Jonathan Naylor, Ana Rubio Denniss, Daniel Ward

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: synthetic biology; multi-agent modelling; individual-based modelling; agent-based modelling; systems biology; emergence; multi-scale; bioengineering; consortia; collectives

Online: 5 May 2020 (03:45:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201704.0047.v2

Multistage DC-DC Step-Up Self Balanced and Magnetic Component Free Converter for Photovoltaic Applications—Hardware Implementation

Mahajan Sagar Bhaskar, Sanjeevikumar Padmanaban, Frede Blaabjerg

Subject: Engineering, Electrical And Electronic Engineering Keywords: DC-DC; self biased; magnetic component free; multistage; step-up; photovoltaic application

Online: 10 April 2017 (06:14:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201905.0357.v1

Collision Space-Time. Unified Quantum Gravity. Gravity is Lorentz Symmetry Break Down at the Planck Scale

Espen Haug

Subject: Physical Sciences, Quantum Science And Technology Keywords: Quantum gravity, granular matter, Lorentz symmetry break down at the Planck scale, Heisen- berg uncertainty break down at the Planck scale, indivisible particles, gravity and Lorentz symmetry break down.

Online: 29 May 2019 (16:31:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0695.v1

Complementarity Between Sentinel-1 and Landsat 8 Imagery for Built-Up Mapping in Sub-Saharan Africa

Yann Forget, Michal Shimoni, Marius Gilbert, Catherine Linard

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: Urban Remote Sensing; Sentinel-1; Landsat 8; Built-Up; Data Fusion; Texture; Africa

Online: 29 October 2018 (16:02:53 CET)

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The rapid urbanization that takes place in developing regions such as Sub-Saharan Africa is associated with a large range of environmental and social issues. In this context, remote sensing is essential to provide accurate and up-to-date spatial information to support risk assessment and decision making. However, mapping urban areas remains a challenge because of their heterogeneity, especially in developing regions where the highest rates of misclassification are observed. Nevertheless, urban areas located in arid climates --- which are among the most vulnerables to anthropogenic impacts, suffer from the spectral confusion occurring between built-up and bare soil areas when using optical imagery. Today, the increasing availability of satellite imagery from multiple sensors allow to tackle the aforementioned issues by combining optical data with Synthetic Aperture Radar (SAR). In this paper, we assess the complementarity of the Landsat 8 and Sentinel-1 sensors to map built-up areas in twelve Sub-Saharan African urban areas, using a pixel-level supervised classification based on the Random Forest classifier. We make use of textural information extracted from SAR backscattering data in order to reduce the speckle noise and to introduce contextual information at the pixel level. Results suggest that combining both optical and SAR features consistently improves classification performances, mainly by enhancing the differentiation between built-up and bare lands. However, the fusion was less beneficial in mountainous case studies, suggesting that including features derived from a Digital Elevation Model (DEM) could improve the reliability of the proposed approach. As suggested by previous studies, combining features computed from both VV and VH polarizations consistently led to better classification performances. On the contrary, introducing textures computed from different spatial scales did not improve the classification performances.

Preprint ESSAY | doi:10.20944/preprints201711.0063.v1

Multi-Scale Deep Neural Network for Mitosis Detection in Breast Cancer Histological Images

Boqian Wu, Binwen Fan, Qiao Xiao, Tasleem Kausar, Wenfeng Wang

Subject: Computer Science And Mathematics, Computer Vision And Graphics Keywords: breast cancer; mitosis detection; CNN; Stain-normalization; CRF; multi-scale feature

Online: 9 November 2017 (10:05:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints202012.0105.v1

Mapping Built-Up Land with High Accuracy Using Fourier Transformation and Temporal Correction

Jinzhu Wang, Michalis Hadjikakou, Brett Bryan

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Built-up land; Fourier transformation; high-accuracy mapping; temporal correcti

Online: 4 December 2020 (11:58:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints201705.0046.v1

Small Scale Hydroelectric Power Plants in Norway. Some Microeconomic and Environmental Considerations

Johannes Idsø

Subject: Business, Economics And Management, Economics Keywords: small scale hydroelectric power; neumann-mortenstern utility theory; environmental effects of hydro power; hydropower and risk

Online: 5 May 2017 (05:32:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201801.0191.v1

Global Existence, Exponential Decay and Blow-Up of Solutions for a Class of Fractional Pseudo-Parabolic Equations with Logarithmic Nonlinearity

Wenjun Liu, Jiangyong Yu, Gang Li

Subject: Computer Science And Mathematics, Analysis Keywords: blow-up; fractional pseudo-parabolic equations; initial energy; logarithmic nonlinearity

Online: 22 January 2018 (04:22:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints202201.0006.v1

The differences between the Connor–Davidson Resilience Scale and the Brief Resilience Scale When Assessing Resilience: Confirmatory Factor Analysis and Predictive Effects

Yun-Ci Ye, Chia-Huei Wu, Cheng-Ta Yang

Subject: Social Sciences, Psychology Keywords: resilience; Connor-Davidson Resilience Scale; Brief Resilience Scale; depression; life satisfaction; confirmatory factor analysis

Online: 4 January 2022 (12:34:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints201901.0236.v1

Hybrid 3D Models: When Geomatics Innovations Meet Extensive Built Heritage Complexes

Filiberto Chiabrando, Giulia Sammartano, Antonia Spanò, Alessandra Spreafico

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: 3D models; multi-sensor; multi-scale; SLAM; MMS; LiDAR; UAV; data integration; data fusion; cultural heritage

Online: 23 January 2019 (10:08:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints201705.0043.v1

Bayesian Hierarchical Scale Mixtures of Log-Normal Models for Inference in Reliability with Stochastic Constraint

Hea-Jung Kim

Subject: Computer Science And Mathematics, Information Systems Keywords: Bayesian reliability analysis; Bayesian hierarchical model; MCMC method; scale mixtures of log-normal failure time model; stochastic constraint; two-stage MaxEnt prior.

Online: 4 May 2017 (16:26:10 CEST)

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Preprint REVIEW | doi:10.20944/preprints201710.0046.v1

Full-Scale/Model Test Comparisons to Validate the Traditional ABL Wind Tunnel Simulation Technique: A Literature Review

X.X. Cheng, J. Dong, Y. Peng, L. Zhao, Y.J. Ge

Subject: Engineering, Civil Engineering Keywords: comparative study; full-scale measurement; wind tunnel model test; multiple-fan actively controlled wind tunnel; research scheme

Online: 9 October 2017 (06:38:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202006.0303.v1

Understanding Livelihood Characteristics and Vulnerabilities of Small-scale Fishers in Coastal Bangladesh

Atiqur Rahman Sunny

Subject: Biology And Life Sciences, Aquatic Science Keywords: Livelihoods; Sustainability; Vulnerability; Small-scale Fishers; Bangladesh

Online: 24 June 2020 (14:34:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201704.0065.v1

Modelling Airport Pollutants Dispersion at High Resolution

Claire Sarrat, Sébastien Aubry, Thomas Chaboud, Christine Lac

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Airport; Local Air Quality; Local Scale

Online: 11 April 2017 (17:32:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202109.0008.v1

The Role of Hydrogen in German Residential Buildings

Lukas Langenberg, Kevin Knosala, Noah Pflugradt, Leander Kotzur, Detlef Stolten, Peter Stenzel

Subject: Engineering, Energy And Fuel Technology Keywords: Hydrogen; residential buildings; heat supply; renovation; price sensitivity; bottom-up

Online: 1 September 2021 (11:48:40 CEST)

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As fossil-fueled heating in the building sector is responsible for 16 % of Germanys total CO2 emissions, it is of great importance to use climate-neutral alternatives for the decarbonization of this sector. Options for the climate-neutral heating of buildings include electricity or hydrogen as energy carriers, both explicitly considered by German policy. In this paper, bottom-up studies are conducted to investigate the role of hydrogen for the climate-neutral energy supply of ten selected residential buildings in comparison to electricity-based systems. Based on a selection of as different typical buildings as possible for single- (SFH) and multi-family houses (MFH) of different construction years, demand profiles are simulated for each building and the respective cost-optimal supply system is determined. For the construction of this system, the electricity-based technologies available are electric heater and heat pump as well as the hydrogen-based technologies hydrogen boiler and fuel cell combined heat and power (CHP) system. Based on the results of the optimization, sensitivity analyses are performed. These analyses aim to identify threshold values of the hydrogen price for the use of hydrogen in building energy systems as well as to make the quantities of hydrogen consumed visible.The identified threshold values show the significant role of hydrogen-operated CHP in MFH if the hydrogen price reaches 0.17 €/kWh_H2 in 2050at an electricity price of 0.31 €/kWh_el. So, hydrogen-based energy systems represent an economically viable alternative to electricity-based systems with heat pumps. We identify electricity to hydrogen price ratios for the economically viable use of hydrogen in the examined buildings that range from 1.67 to 2.82. According to these ratios, the economically reasonable use of hydrogen in buildings can be derived. For the individual building groups for the year 2050, a ratio of 2.5 can be determined for SFH and 1.8 for MFH, that is favored by the use of CHP which also supplies electricity to the buildings. However, the role hydrogen will finally play in German residential buildings in the future depends to a large extent on political decisions on distribution issues and price signals.

Working Paper ARTICLE

Structural Entropy Constrains Dynamics in Directed Networks

Blai Vidiella, Salva Duran-Nebreda, Sergi Valverde

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: structural entropy; dimensionality; flow dynamics; spin; directed network; scale-free

Online: 27 January 2021 (15:35:38 CET)

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Preprint ARTICLE | doi:10.20944/preprints201810.0256.v1

Evaluation of the Technical Wind Energy Potential of Kisii Region Based on the Weibull and Rayleigh Distribution Models

Laban N. Ongaki, Christopher M. Maghanga, Joash Kerongo

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: wind speed; wind power; scale factor and shape factor

Online: 12 October 2018 (05:13:33 CEST)

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Preprint REVIEW | doi:10.20944/preprints201803.0160.v1

A Bibliographical Survey on Software Architectures for Smart Grid System

A. Ramesh, Prabhakar Karthikeyan, Sanjeevikumar Padmanaban, Saravanan Balasubramanian, Josep M. Guerrero

Subject: Engineering, Electrical And Electronic Engineering Keywords: Advanced Metering Infrastructure (AMI); Distributed Energy Resources (DER); Distribution Management System (DMS); Graph Reduction In Parallel (GRIP); Intelligent Electronic Device (IED); Intelligent Platform Management Interface (IPMI); Service Oriented Architecture (SOA); Ultra Large Scale System (ULSS)

Online: 19 March 2018 (11:42:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints201805.0171.v1

Fracture Reconstruction and Analysis of Low Permeability Carbonates using x-ray Tomography for Comparison with Outcrop Data

Stephanie G. Zihms, Helen Lewis, Tiago Siqueira de Miranda, Stephen A. Hall, James M. Somerville

Subject: Environmental And Earth Sciences, Geography Keywords: geomechanics; fractures; multi-scale; x-ray tomography; carbonates

Online: 10 May 2018 (16:24:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202203.0310.v1

Avoiding the Great Filter: Predicting the Timeline for Humanity to Reach Kardashev Type I Civilization

Jonathan H. Jiang, Fuyang Feng, Philip E. Rosen, Kristen A. Fahy, Antong Zhang, Piotr Obacz, Prithwis Das, Zong-Hong Zhu

Subject: Physical Sciences, Applied Physics Keywords: Kardashev scale; civilization; energy consumption and supply

Online: 23 March 2022 (05:19:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints201709.0098.v2

A Conversion Method to Determine Regional Vegetation Cover Factor from Standard Plots based on Large Sample Theory and TM Images: A Case Study in the Eastern Farming-pasture Ecotone of Northern China

Degen Lin, Yuan Gao, Yaoyao Wu, Peijun Shi, Huiming Yang, Jing’ai Wang

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: farming-pasture ecotone; TM image; remote sensing; vegetation cover factor; scale conversion; land use; high resolution image

Online: 21 September 2017 (16:33:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201807.0123.v1

Comprehensive snake venomics of the Okinawa Habu pit viper, Protobothrops flavoviridis, by complementary mass spectrometry-guided approaches

Maik Damm, Benjamin-Florian Hempel, Ayse Nalbantsoy, Roderich D. Süssmuth

Subject: Biology And Life Sciences, Virology Keywords: Snake venomics; Viperidae; Protobothrops flavoviridis; Habu pit viper; Bottom-Up; Top-Down; BPP; Tripeptide metalloprotease inhibitor; Cytotoxicity

Online: 6 July 2018 (16:34:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201906.0285.v1

Lenvatinib as an Initial Treatment in Patients with Intermediate-stage Hepatocellular Carcinoma Beyond up-to-seven Criteria and Child-Pugh A Liver Function: A Proof-of-Concept Study

Masatoshi Kudo, Kazuomi Ueshima, Stephan Chan, Tomohiro Minami, Hirokazu Chishina, Tomoko Aoki, Masahiro Takita, Satoru Hagiwara, Yasunori Minami, Hiroshi Ida, Mamoru Takenaka, Toshiharu Sakurai, Tomohiro Watanabe, Masahiro Morita, Chikara Ogawa, Yoshiyuki Wada, Masafumi Ikeda, Hiroshi Ishii, Namiki Izumi, Naoshi Nishida

Subject: Medicine And Pharmacology, Gastroenterology And Hepatology Keywords: hepatocellular carcinoma; lenvatinib; transcatheter arterial chemoembolisation; intermediate stage; up-to-seven criteria

Online: 27 June 2019 (08:13:58 CEST)

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Background: Although transcatheter arterial chemoembolisation (TACE) is the standard of care for intermediate-stage hepatocellular carcinoma (HCC), this is a largely heterogeneous disease that includes a subgroup of patients who do not benefit from TACE. The treatment strategy for this subgroup of patients currently remains an unmet need in clinical practice. Here, we performed a proof-of-concept study that lenvatinib may be more favourable treatment option over TACE as an initial treatment in intermediate-stage HCC patients with large or multinodular tumours exceeding the up-to-seven criteria. Methods: This proof-of-concept study included 642 consecutive patients with HCC initially treated with lenvatinib or conventional TACE (cTACE) between January 2006 and December 2018. Of these patients, 176 who received lenvatinib or cTACE as an initial treatment and met the eligibility criteria [unresectable, beyond the up-to-seven criteria, no prior TACE/systemic therapy, no vascular invasion, no extrahepatic spread and Child-Pugh A liver function] were selected for the study. Propensity score matching was used to adjust for patient demographics. Results: After propensity-score matching, outcome of 30 patients prospectively treated with lenvatinib (14 in clinical trials, 1 in early access program and 15 in real world setting) and 60 patients treated with cTACE as the initial treatment was compared. The change of ALBI score from baseline to the end of treatment were -2.61 to -2.61 for 30 patients in lenvatinib group (p = 0.254) and -2.66 to -2.09 in cTACE group (p < 0.01), respectively. The lenvatinib group showed a significantly higher objective response rate (73.3% vs. 33.3%; p < 0.001) and significantly longer median progression-free survival than the cTACE group (16.0 vs. 3.0 months; p < 0.001). Overall survival was significantly longer in the lenvatinib group than in the cTACE group (37.9 vs. 21.3 months; hazard ratio: 0.48, p < 0.01). Conclusion: In patients with large or multinodular intermediate-stage HCC exceeding the up-to-seven criteria with Child-Pugh A liver function, who usually do not benefit from TACE, lenvatinib provides more favorable outcome than TACE.

Preprint ARTICLE | doi:10.20944/preprints202010.0282.v1

The Medical Community Perspectives Regarding the Egyptian Medical License Exam: Mixed-Method Study

Asmaa Abdel Nasser, Asmaa Sharif, Fatma Elkhamisy, Hadeer Adel, Ahmed Hussein, Nesrin Handoka, Ahmed Ali, Enjy Abouzeid

Subject: Business, Economics And Management, Accounting And Taxation Keywords: National Licensing Exam; EMLE Framework; Exam Logistics; Exam Set up; Egypt

Online: 13 October 2020 (13:59:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201709.0059.v1

The Effect of Heat Transfer and Polymer Concentration on Non-Newtonian Fluid from Pore-Scale Simulation of Rock X-Ray micro-CT

Moussa Tembely, Ali M. AlSumaiti, Mohamed S. Jouini, Khurshed Rahimov

Subject: Engineering, Mechanical Engineering Keywords: pore-scale model; non-Newtonian fluid; Finite Volume Method; Digital Rock Physics

Online: 15 September 2017 (10:09:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201709.0110.v1

Dynamics of Dual Scale-Free Polymer Networks

Mircea Galiceanu, Luan Tota de Carvalho, Oliver Mülken, Maxim Dolgushev

Subject: Physical Sciences, Mathematical Physics Keywords: polymer networks; scale-free networks; mechanical relaxation; eigenvalue problem

Online: 22 September 2017 (16:21:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201906.0132.v1

Economical and Environmental Friendly Methods for Separation of Oil from Mill Scale

Muhammad Shoukat Hussain, Asra Shoukat, Hafiz Syed Umer Nasir, Ammara Shoukat

Subject: Environmental And Earth Sciences, Waste Management And Disposal Keywords: scale; by-product; economical method; environment friendly; zero waste

Online: 14 June 2019 (10:09:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201711.0049.v1

Influence of Perceptual Range on Perceived Restoration

Moohan Kim, Jae-Hyuck Lee, Woo-Yeong Joo

Subject: Arts And Humanities, Architecture Keywords: spatial perception; Perceived Restorativeness Scale; urban greening; cognitive mapping; environmental restorative effect; perceptual range

Online: 8 November 2017 (03:11:06 CET)

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Working Paper ARTICLE

Open Source Vacuum Oven for Low-Temperature Drying

Benjamin R. Hubbard, Lindsay I. Putman, Stephen Techtmann, Joshua M. Pearce

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: drying; materials processing; vacuum oven; small-scale; lab equipment; air-powered; open hard-ware; open source; digital manufacturing; dehydration

Online: 22 April 2021 (09:16:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201709.0092.v1

Principal Mismatch Patterns across a Simplified Highly Renewable European Electricity Network

Mads Raunbak, Timo Zeyer, Kun Zhu, Martin Greiner

Subject: Engineering, Energy And Fuel Technology Keywords: renewable energy networks; principal component analysis; large-scale integration of renewables; wind power; solar power; super grid; energy system design

Online: 20 September 2017 (04:44:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201710.0019.v1

Nanoindentation-Induced Pile-Up in the Residual Impression of Crystalline Cu with Different Grain Size

Jiangjiang Hu, Weiming Sun, Taihua Zhang, Yusheng Zhang

Subject: Chemistry And Materials Science, Nanotechnology Keywords: Nanoindentation; Pile-up effect; Grain size; Dislocation motion; Grain boundaries activities

Online: 3 October 2017 (17:04:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0295.v1

Scaling Up the Production and Commercialization of Tamarind Fruit in Kenya: The Missing Value Chain Links

Omondi Simon

Subject: Business, Economics And Management, Marketing Keywords: Tamarind value chain; scaling-up; production; commercialization

Online: 26 April 2019 (10:15:30 CEST)

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There is limited information on Tamarind production, trade and value added products in Kenya. Of late, there is growing interest in the domestic and export markets due to its multiple uses. The objective of this paper is to review existing literature to identify the missing value chain links which may help catalyse the scaling up of production and commercialization of Tamarind. Selected literature and interviews with traders and extension staff in the Coastal Counties were used to collect information for this study. Tamarind fruits are mainly collected in the wild in semi-arid areas of the country and marketed through informal channels. Mombasa is the terminal market for tamarind from Kenya and Uganda, from where domestic consumers and exporters obtain their supplies. Globally, virtually every part of tamarind tree (pulp, seed, leaves, flowers, bark and roots) has either nutritional, industrial or medicinal value. Tamarind fruit contains substantial levels of carbohydrates, proteins, vitamins, minerals and essential amino acids making it potentially useful in addressing wide spread malnutrition. Its anti-oxidant, anti-inflammatory, anti-microbial, anti-fungal and anti-diabetic properties gives tamarind wider application in conventional and traditional medicine. The findings suggest that scaling up the production and commercialization of tamarind in the country requires both public and private sector investment. The structure of this partnership should consist of the following value chain links: An efficient Seed / seedling system as a source of planting materials; production hubs by farmer associations, government institutions and private farms; aggregation centres for assurance of volumes and quality; processing, value addition and product diversification; an efficient distribution systems of wholesalers and retailers, particularly supermarkets; exporters and consumers. The agenda for further research should include breeding and availing early maturing cultivars demanded by the export market, quality management andvalue addition technologies.

Preprint ARTICLE | doi:10.20944/preprints202008.0207.v1

The Prevalence and Sociodemographic Correlates of Social phobia in Oman: Online National Survey

Aamal Ambusaidi, Salim Al Huseini, Hiba Alshaqsi, Manal AlGhafri, Moon-Fai Chan, Nasser Al-Sibani, Samir Al-Adawi

Subject: Medicine And Pharmacology, Psychiatry And Mental Health Keywords: Social Anxiety Disorder; Social Phobia, Online Survey; Adult, Oman; Liebowitz Social Anxiety Scale

Online: 8 August 2020 (09:39:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201802.0166.v1

The Effect of Environmental Conditions on the Physiological Response during a Stand-Up Paddle Surfing Session

Yair Suari, Ben Schram, Adva Ashkenazi, Hadas Gann-Perkal, Lev Berger, Meshi Reznikov, Shmuel Shomrat, Einat Kodesh

Subject: Medicine And Pharmacology, Orthopedics And Sports Medicine Keywords: stand up paddle board; physiology; surfing

Online: 26 February 2018 (11:59:28 CET)

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Preprint ARTICLE | doi:10.20944/preprints201802.0006.v1

Adoption of Small-Scale Irrigation Farming as a Climate-Smart Agriculture Practice and Its Influence on Household Income in the Chinyanja Triangle, Southern Africa

Nelson Mango, Clifton Makate, Lulseged Tamene, Powell Mponela, Gift Ndengu

Subject: Social Sciences, Sociology Keywords: climate-smart agriculture; adoption; small-scale irrigation farming; household income; Chinyanja Triangle; Southern Africa

Online: 1 February 2018 (09:33:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints201808.0426.v2

Cities, from Information to Interaction

Vinicius M. Netto, Edgardo Brigatti, João Meirelles, Fabiano L. Ribeiro, Bruno Pace, Caio Cacholas, Patricia Sanches

Subject: Social Sciences, Urban Studies And Planning Keywords: information; cities; interaction; environmental information; entropy; scale; enaction

Online: 10 October 2018 (05:32:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0298.v1

Sintered Glass Monoliths as New Supports for Affinity Columns

Marco Wilke, Bettina Röder, Martin Paul, Michael G. Weller

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Affinity chromatography; matrix; solid support; resin; support materials; glass filter; glass frit; high-pressure; HPLC; FPLC; antibodies; immunoglobulins; purification; downstream processing; protein purification; preparative; analytical; separation; clean-up; automation

Online: 11 March 2021 (08:37:01 CET)

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A novel stationary phase for affinity separations is presented. This material is based on sintered borosilicate glass readily available as semi-finished filter plates with defined porosity and surface area. The material shows fast binding kinetics and excellent long-term stability under real application conditions due to lacking macropores and high mechanical rigidity. The glass surface can be easily modified with standard organosilane chemistry to immobilize selective binders or other molecules used for biointeraction. In this paper, the manufacturing of the columns and their respective column holders by 3D printing is shown in detail. The model system protein A/IgG was chosen as an example to examine the properties of such monolithic columns under realistic application conditions. Several specifications, such as (dynamic) IgG capacity, pressure stability, long-term performance, productivity, non-specific binding, and peak shape, are presented. It could be shown that due to the very high separation speed, 250 mg antibody per hour and column can be collected, which surpasses the productivity of most standard columns of the same size. The total IgG capacity of the shown columns is around 4 mg (5.5 mg/mL), which is sufficient for most tasks in research laboratories. The cycle time of an IgG separation can be less than 1 minute. Due to the glass material's excellent pressure resistance, these columns are compatible with standard HPLC systems. This is usually not the case with standard affinity columns, limited to manual use or application in low-pressure systems. The use of a standard HPLC system also improves the ability for automation, which enables the purification of hundreds of cell supernatants in one day. The sharp peak shape of the elution leads to an enrichment effect, which might increase the concentration of IgG by a factor of 3. The final concentration of IgG can be around 7.5 mg/mL without the need for an additional nanofiltration step. The purity of the IgG was > 95% in one step and nearly 99% with a second polishing run.

Preprint REVIEW | doi:10.20944/preprints202104.0258.v1

Towards Scaling-up Photocatalytic Process for Multiphase Environmental Applications: A Review

Mohamed Gar Alalm, Ridha Djellabi, Daniela Meroni, Carlo Pirola, Claudia L. Bianchi, Daria Camilla Boffito

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Air pollution; Photocatalysis; Reactors; Wastewater; Water matrix; Scaling up

Online: 9 April 2021 (13:04:11 CEST)

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Preprint REVIEW | doi:10.20944/preprints202009.0548.v1

Metabolic Modelling Approaches for Describing and Engineering Microbial Communities

Beatriz García-Jiménez, Jesús Torres, Juan Nogales

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: genome-scale metabolic model; microbial community; optimization; design; engineering; computational methods; synthetic microbial consortia

Online: 23 September 2020 (09:52:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202102.0440.v1

Effect of Different Types of Warm-up on Strength and Skin Temperature of Paralympic Powerlifting Athletes

Marcelo de Aquino Resende, Felipe J. Aidar, Roberta Barreto Vasconcelos Resende, Gracielle Costa Reis, Layanne de Oliveira Barros, Dihogo Gama de Matos, Anderson Carlos Marçal, Paulo Francisco de Almeida-Neto, Alfonso López Díaz de Durana, María Merino Fernández, José Vilaça-Alves, Breno Guilherme de Araújo Tinoco Cabral, Eduardo Borba Neves, Victor Machado Reis, Nuno Domingos Garrido

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: warm up; muscle force; performance; resistance training; thermal imaging; physiology

Online: 19 February 2021 (14:15:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints201908.0059.v1

The Effect of Recreation in a Snow-Covered Forest Environment on the Psychological Relaxation of Young Females

Ernest Bielinis, Adrian Łukowski, Aneta Omelan, Sergii Boiko, Norimasa Takayama

Subject: Biology And Life Sciences, Forestry Keywords: deciduous forest; female; forest bathing; forest therapy; Positive and Negative Affect Schedule; Profile of Mood States; Restorative Outcome Scale; restoration; Shinrin-Yoku; snow covered forest; Subjective Vitality Scale; winter

Online: 5 August 2019 (08:56:32 CEST)

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Forest recreation can be successfully conducted for the purpose of psychological relaxation, as has been proven in previous scientific studies. During the winter in many countries, when snow cover occurs frequently, forest recreation (walking, relaxation, photography, etc.) is common. Nevertheless, whether forest therapy conducted in a forest environment with a snow cover will also have a positive effect on psychological indicators remains unknown. Furthermore, male subjects frequently participate in forest therapy experiments, whereas females are rarely involved. Thus, in this study, the effectuality of forest recreation during winter and with snow cover was tested on 32 young females. For these reasons, the experiment involved 15-minute periods of relaxation in a forest environment or in an urban environment, in addition to a pre-test under indoor conditions. Four psychological questionnaires (POMS, PANAS, ROS, SVS) were administered to participants before and after interventions. Results showed that participants’ levels of negative mood, as measured by different aspects of the POMS questionnaire (tension-anxiety, anger-hostility, depression-dejection, confusion, fatigue), decreased after exposure to the forest environment. In contrast, both tension-anxiety and anger-hostility increased in the urban environment. The indicator of negative affect from the PANAS questionnaire also increased after exposure to the urban environment, whereas the indicator of positive affect based on PANAS was higher in the forest environment than in the urban environment. Restorativeness and subjective vitality exhibited higher values after exposure to the forest environment in comparison to those from the control and pre-test. The changes in these indicators demonstrates that forest recreation in the snow during winter can significantly increase psychological relaxation in young females, as well as showing that recreation can be successfully conducted under these winter conditions.

Preprint ARTICLE | doi:10.20944/preprints201802.0165.v1

The Importance and Effectiveness of Carotid Endarterectomy in Ischaemic Stroke or TIA with Significant Carotid Stenosis

Muhammad Shohel Almamun, Mobashshereen Khan

Subject: Medicine And Pharmacology, Neuroscience And Neurology Keywords: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leuco encephalopathy (CADASIL); Carotid Endarterectomy (CEA); Modified Rankin Scale (MRS); Computed Tomography(CT); Tissue plasminogen activator (tPA); Diffusion weighted Imaging (DWI); Recognition of Stroke in the Emergency Room (ROSIER) scale; Magnetic resonance Imaging (MRI); Internal Carotid Artery (ICA)

Online: 26 February 2018 (11:46:47 CET)

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Preprint ARTICLE | doi:10.20944/preprints201801.0200.v1

Highly Efficient Step-Up Boost-Flyback Coupled Magnetic Integrated Converter for Photovoltaic Energy

Vo Thanh Vinh, Vu Thai Giang, Nguyen The Vinh

Subject: Engineering, Electrical And Electronic Engineering Keywords: DC-DC converters; boost converter; flyback converter; high step-up voltage gain; sustainable energy system

Online: 22 January 2018 (11:39:16 CET)

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Working Paper ARTICLE

A Silicon-made Microfluidic Device for the Fabrication of Excipient-free Pure Drug Nanoparticles

Roni Sverdlov Arzi, Asaf Kay, Yulia Raychman, Alejandro Sosnik

Subject: Chemistry And Materials Science, Biomaterials Keywords: kinase inhibitors; pure drug nanoparticles; drug nanocrystals; bottom-up nanonization; nanoprecipitation; microfluidics; flow focusing technologies

Online: 2 March 2021 (11:29:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints201805.0008.v1

Construct Validity of Korean Leisure Sports Instructor Job Crafting Questionnaire Scale (KSIJCQ: Korean Sports Instructor JCQ)

Wook Kyung Kim, Won Chung Chung, Hyu Kyoung Park

Subject: Social Sciences, Sociology Keywords: JCQ; job crafting; construct validity; leisure sports instructor; valid scale

Online: 1 May 2018 (11:36:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201908.0262.v1

Landscape Changes and their Impacts on Land Surface Temperature in Tropical Hill Stations in South Asia: A Case Study of Nuwara Eliya, Sri Lanka

Manjula Ranagalage, Yuji Murayama, DMSLB Dissanayake, Matamyo Simwanda

Subject: Social Sciences, Geography, Planning And Development Keywords: land use and cover; land surface temperature; built-up land; agricultural land; gradient analysis; Nuwara Eliya; Sri Lanka

Online: 26 August 2019 (05:07:33 CEST)

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Although urbanization has contributed to improving living conditions, it has had negative impacts on the natural environment in the urbanized areas. Urbanization has changed the urban landscape and resulted in increasing land surface temperature (LST). Thus, studies related to LST in various urban environments have become a popular research topic. However, few LST studies focusing on the mountain landscapes (i.e. hill stations) have been carried out. The primary objective of this study is to investigate changes in the landscape and their impacts on LST intensity (LSTI) in the tropical mountain city of Nuwara Eliya, Sri Lanka. The study utilized annual median temperatures extracted from Landsat data collected from 1996 to 2017 based on the Google Earth Engine (GEE) interface. The fractions of built-up (BL), forest (FL), and agricultural (AL) land were calculated using land use and cover maps based on the urban-rural zone (URZ) analysis. The urban-rural margin was demarcated based on the fraction of BL (<10%) and LSTI was measured using the mean LST difference in the urban-rural zone. In addition, the mixture of land use types was calculated using the AL/FL and BL/FL fraction ratios, and grid-based density analysis. The result shows that the BL in all URZ rapidly developed, while AL decreased during the period 1996 to 2017. There was minimal change in the forest area of the Nuwara Eliya owing to the government forest preservation policies. The fraction of the BL increased from 32.4% in 1996 to 58.7% in 2017 in the city center zone (URZ₁) resulting in increased mean LST by 4.7 °C. Furthermore, the increase of the BL/FL fraction ratio and the decrease of the AL/FL fraction ratio were positively correlated with the mean LST. Grid-based analysis showed an increasing positive relationship between mean LST and density of BL. This indicated that BL density has been a crucial element in increasing LST in the study area. The results of this study will be a useful indicator to introduce improved landscape and urban planning in the future to minimize the negative impact of LST on urban sustainability.

Preprint ARTICLE | doi:10.20944/preprints202102.0208.v1

A Solution of the Cosmological Constant, Using Multiverse Version of Penrose CCC Cosmology, and Enhanced Quantization Compared

Andrew Beckwith

Subject: Physical Sciences, Acoustics Keywords: Minimum scale factor; cosmological constant; space-time bubble; bouncing cosmologies

Online: 8 February 2021 (13:00:28 CET)

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Preprint REVIEW | doi:10.20944/preprints201805.0027.v1

Novel nano-materials and nano-fabrication techniques for flexible electronic systems

Kyowon Kang, Young Uk Cho, Ki Jun Yu

Subject: Engineering, Electrical And Electronic Engineering Keywords: flexible electronics; nano-fabrication; top-down approaches; bottom-up approaches

Online: 2 May 2018 (11:51:13 CEST)

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Preprint REVIEW | doi:10.20944/preprints202104.0244.v1

Curating and Comparing 114 Strain-Specific Genome-Scale Metabolic Models of Staphylococcus aureus

Alina Renz, Andreas Dräger

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Staphylococcus aureus; MRSA; genome-scale metabolic models; model-driven discovery; strain-specific models

Online: 8 April 2021 (14:25:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0304.v1

Fatigue Assessment of Prestressed Concrete Slab-between-Girder Bridges

Eva O.L. Lantsoght, Rutger Koekkoek, Cor van der Veen, Henk Sliedrecht

Subject: Engineering, Civil Engineering Keywords: assessment; bridge evaluation; compressive membrane action; concrete bridges; fatigue; fatigue assessment; live loads; prestressed concrete; punching shear; scale model

Online: 28 April 2019 (08:38:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201802.0178.v1

Factors Associated to Anti-HPV Vaccine Refusal among Young Adult Women after Ten Year of Vaccine Implementation

Vincenzo Restivo, Claudio Costantino, Tiziana Francesca Fazio, Nicolò Casuccio, Claudio D'Angelo, Francesco Vitale, Alessandra Casuccio

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: Human Papillomavirus; vaccine refusal; hesitancy; women; school based; Health Belief Model; gynaecologist; general practitioner; survey; catch up

Online: 27 February 2018 (09:02:41 CET)

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Preprint ARTICLE | doi:10.20944/preprints202101.0303.v1

Controlling Nutritional Status (CONUT) Score is a Prognostic Indicator for Patients with Hemorrhagic Stroke: Results from a 3-month Follow-up Study

Bei-lei Zhu, Yan-zhi Wu, Zhong-ming Cai, Cheng-wei Liao, Le-qiu Sun, Zhi-peng Liu, Hao-man Chen, Xue-rong Huang, Ren-qian Feng, Sheng-lie Ye, Qun-li Lin, Xu-dong Zhou, Man-man Zhang, Bo Yang

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: Controlling Nutritional Status Score; Hemorrhagic stroke; Nutrition screening; Prognosis; Modified Rankin Scale

Online: 15 January 2021 (16:08:15 CET)

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Preprint REVIEW | doi:10.20944/preprints202401.0789.v1

Microbiome Modeling: A Beginner’s Guide

Emanuel Lange, Lena Kranert, Jacob Krüger, Dirk Benndorf, Robert Heyer

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: systems microbiology; microbial ecology; omics data integration; metaproteomics; genome-scale modeling; constraint-based modeling; boolean modeling, bioinformatics

Online: 10 January 2024 (09:57:55 CET)

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Preprint ARTICLE | doi:10.20944/preprints201806.0175.v1

Antineutrino Star Model of the Big Bang and Dark Energy

Tom F. Neiser

Subject: Physical Sciences, Particle And Field Physics Keywords: cosmology: theory; gravitation; early universe; dark energy; large-scale structure of universe; cosmic background radiation; neutrinos

Online: 12 June 2018 (08:43:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0386.v1

Effects of Residual Stress Distribution on Interfacial Adhesion of Magnetron Sputtered AlN and AlN/Al Nanostructured Coatings on (100) Silicon Substrate

Rashid Ali, Marco Renzelli, Muhammad Imran Khan, Marco Sebastiani, Edoardo Bemporad

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: physical vapor deposition; magnetron-sputtering; AlN/Al coating; silicon substrate; residual stresses; wafer curvature method; Nano-scale residual stress profiling; indentation failure modes; nanoindentation adhesion

Online: 17 October 2018 (12:36:39 CEST)

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Compressive residual stresses in thin films can inhibit crack propagation under normal or sliding contact loading, with associated enhancement of the coating apparent toughness, load bearing capacity and wear resistance. This study investigates the influence of residual stress distributions on the thin film/substrate adhesion using a nanoindenter coupled with scanning electron microscope (SEM) investigations of indentation induced failure modes. Reactive and un-reactive magnetron sputtering with ion plating was used to coat a (100) silicon substrate with aluminum nitride (AlN) with and without an aluminum (Al) adhesion layer. The presence of an Al bond layer gives additional interfacial tensile stress because of the difference in thermal expansion coefficient. Additionally, a different magnitude of residual stresses in the AlN coating was achieved by changing the applied bias voltage onto the substrate. Wafer curvature method and incremental focused ion beam (FIB) milling, combined with high-resolution in situ scanning electron microscopy (SEM) imaging and full field strain analysis by digital image correlation (DIC), were used to measure the average and in-depth stress residual stress distribution in the produced coatings. The adhesion energy was then quantified by using a nanoindentation based model. Results demonstrate that the additional tensile residual stress in the aluminum adhesion layer decrease significantly the coating adhesion, even in presence of a higher compressive stress state in the AlN top-layer. Therefore, the coatings without Al-layer showed better adhesion because of a more homogeneous compressive residual stress in comparison with the coating having Al layer, even though both groups of coatings are produced under same bias voltage. Results are discussed, and some general suggestions are made on the correlation between coating/substrate property combination and the adhesion energy of multilayer stacks. The results suggested that Al bond-layer and inhomogeneous residual stresses affected the adhesion of AlN negatively to a substrate like silicon.

Preprint ARTICLE | doi:10.20944/preprints201904.0246.v2

Mathematical Models for Possible Roles of Oxytocin and Oxytocin Receptors in Autism

Mark Gottlieb

Subject: Medicine And Pharmacology, Neuroscience And Neurology Keywords: Oxytocin, Oxytocin Receptor, Autism, Nepsys Scale, MAST Immune System Disease, Dendritic Spines, Magnocellular Neurons, Desensitization, Labor, Down Regulation

Online: 23 April 2019 (11:12:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202010.0298.v2

Cosmic Ray Extremely Distributed Observatory

Piotr Homola, Dmitriy Beznosko, Gopal Bhatta, Łukasz Bibrzycki, Łukasz Bratek, Michalina Borczyńska, Nikolay M. Budnev, Dariusz Burakowski, David Edwin Alvarez-Castillo, Kevin Almeida Cheminant, Aleksander Ćwikła, Punsiri Dam-o, Niraj Dhital, Alan Duffy, Piotr Głownia, Krzysztof Gorzkiewicz, Dariusz Góra, Alok C. Gupta, Zuzana Hlávková, Martin Homola, Joanna Jałocha, Robert Kamiński, Michał Karbowiak, Marcin Kasztelan, Renata Kierepko, Marek Knap, Péter Kovács, Szymon Kuliński, Bartosz Łozowski, Marek Magryś, Mikhail V. Medvedev, Justyna Mędrala, Jerzy W. Mietelski, Justyna Miszczyk, Alona Mozgova, Antonio Napolitano, Vahab Nazari, Y. Jack Ng, Michał Niedźwiecki, Cristina Oancea, Bogusław Ogan, Gabriela Opiła, Krzysztof Oziomek, Maciej Pawlik, Marcin Piekarczyk, Bożena Poncyljusz, Jerzy Pryga, Matías Rosas, Krzysztof Rzecki, Jilberto Zamora-Saa, Katarzyna Smelcerz, Karel Smolek, Weronika Stanek, Jarosław Stasielak, Slawomir Stuglik, Jolanta Sulma, Oleksandr Sushchov, Manana Svanidze, Kyle Tam, Arman Tursunov, José-M. Vaquero, Tadeusz Wibig, Krzysztof W. Woźniak

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: cosmic rays; cosmic ray ensembles; extensive air showers; large scale cosmic ray correlations; CREDO Collaboration

Online: 15 October 2020 (16:13:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201803.0010.v1

The Effect of Propeller Scaling Methodology on the Performance Prediction

Stephan Helma, Heinrich Streckwall, Jan Richter

Subject: Engineering, Marine Engineering Keywords: propeller scale effects; propeller open-water efficiency; surface roughness; equivalent profile; strip method; betai method

Online: 1 March 2018 (15:58:14 CET)

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Preprint ARTICLE | doi:10.20944/preprints202107.0275.v1

Sequencing and Chromosome-Scale Assembly of Plant Genomes, Brassica rapa as a Use Case

Benjamin Istace, Caroline Belser, Cyril Falentin, Karine Labadie, Franz Boideau, Gwenaëlle Deniot, Loeiz Maillet, Corinne Cruaud, Laurie Bertrand, Anne-Marie Chèvre, Patrick Wincker, Mathieu Rousseau-Gueutin, Jean-Marc Aury

Subject: Biology And Life Sciences, Anatomy And Physiology Keywords: Genome sequencing; de novo Assembly; Scaffolding; Chromosome-scale; Nanopore sequencing; Long reads; Optical maps; Bionano Genomics; Hi-C; Omni-C; Pore-C; Plant genomes

Online: 12 July 2021 (22:55:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0664.v1

Assessment of the Psychological Impact and Perceived Stress Due to COVID-19 Lockdown in Young Adult Population of India.

Sreelakshmi M, Irfanul Haque, Sarita Jangra Bhyan, Ankit Gaur, Aashi Jain, Amrita Kumari, Besty Thomas, Nancy Goel, Rashi Chauhan

Subject: Social Sciences, Psychology Keywords: COVID-19 lockdown; psychological impact; perceived stresses-R scale; PSS scale; young adults

Online: 28 July 2020 (04:39:39 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202005.0400.v1

What is the Real Shape of the Hubble Diagram, z = H₀*D or z+1= e^H0*t? Analysis of the SN1a Supernovae and Gamma Ray Burst Redshift/Magnitude Data including the High Redshift Range up to z = 8.1

Laszlo Marosi

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: galaxies; distances and redshift; high redshift; stars; Gamma ray bursts; individual; supernovae; individual; cosmology; distance scale; observations

Online: 24 May 2020 (19:07:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201811.0448.v1

Ultra Low Temperature Process Effects on Micro-Scale Abrasion of Tool Steel AISI D2

Sílvio José Gobbi, Vagner João Gobbi, Gustavo Reinke

Subject: Engineering, Mechanical Engineering Keywords: Micro-Scale Abrasion; Ultra Low Temperature Process (ULTP) Tool Steel AISI D2;

Online: 19 November 2018 (10:32:44 CET)

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Working Paper ARTICLE

Interrogating Hope Theory

Jacob Shivley

Subject: Medicine And Pharmacology, Psychiatry And Mental Health Keywords: interrogating hope theory, hope theory, hope, the hope scale, positive psychology

Online: 25 March 2019 (09:53:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints202104.0353.v1

The Clampdown Effect: On The Expulsion of Super-Intelligence

Deep Bhattacharjee

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: WEAK Clampdown Effect, STRONG Clampdown Effect, KARDASHEV Scale, ERROR Processing, EXTRAVAGENT Curiosity, SOFT Singularity, HARD Singularity, ERROR Approximation

Online: 13 April 2021 (12:58:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202107.0046.v1

Combining Remote Sensing Derived Data and Historical Maps for Long-Term Back-Casting of Urban Extents

Johannes H. Uhl, Stefan Leyk, Zekun Li, Weiwei Duan, Basel Shbita, Yao-Yi Chiang, Craig A. Knoblock

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: urbanization; long-term settlement patterns; built-up land data; global human settlement layer; historical maps; topographic map processing; data integration.

Online: 2 July 2021 (10:03:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201908.0116.v1

Matchmr: Exploring the Effects of Scale and Color Differences on Users’ Perception in Mixed Reality Devices

Kwang-seong Shin, Howon Kim, Dongsik Jo

Subject: Computer Science And Mathematics, Hardware And Architecture Keywords: mixed-reality; perception; scale; color; HMD

Online: 9 August 2019 (04:25:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201804.0138.v1

An Assessment of Wind Power Generation Potential of Built Environment Wind Turbine (BEWT) Systems in Fort Beaufort, South Africa

Terrence Manyeredzi, Golden Makaka

Subject: Engineering, Energy And Fuel Technology Keywords: distributed system; power density; renewable energy; sustainability; utility scale; wind resource

Online: 11 April 2018 (06:07:49 CEST)

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Preprint REVIEW | doi:10.20944/preprints201807.0029.v1

Mapping Agricultural Ecosystem Services across Scales

Shubhechchha Sharma, Jennifer Hodbod, Emma Tebbs, Kristofer Chan

Subject: Social Sciences, Geography, Planning And Development Keywords: ecosystem services; agricultural systems; mapping; values; cross-scale; participatory; local

Online: 3 July 2018 (08:16:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201804.0296.v1

Study on the Construction of Landscape Ecological Classification System for Large-Scale Coal-Power Base in Semi-Arid Steppe Region

Zhenhua Wu, Shaogang Lei, Zhengfu Bian

Subject: Environmental And Earth Sciences, Environmental Science Keywords: semi-arid steppe region; large-scale coal-power base; landscape ecological classification

Online: 23 April 2018 (12:48:59 CEST)

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Working Paper REVIEW

Machine Learning of Spatial Data

Behnam Nikparvar, Jean-Claude Thill

Subject: Social Sciences, Geography, Planning And Development Keywords: spatial machine learning; spatial dependence; spatial heterogeneity; scale; spatial observation matrix; learning algorithm; deep learning

Online: 6 August 2021 (14:18:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202104.0358.v1

The Obverse/Reverse Pavilion: An Example of Form-Finding With Isogeometric Analysis in the Design of Temporary, Low-Cost and Eco-Friendly Structure

Jerzy F. Łątka, Michał Święciak

Subject: Social Sciences, Anthropology Keywords: parametric design, paper in architecture, temporary architecture, pop-up structures, membrane structures, isogeometric analysis, fabrication

Online: 13 April 2021 (13:17:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202104.0788.v1

Genome-Scale Metabolic Model of Infection with SARS-CoV-2 Mutants Confirms Guanylate Kinase as Robust Potential Antiviral Target

Alina Renz, Lina Widerspick, Andreas Dräger

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: SARS-CoV-2; COVID-19; Flux Balance Analysis (FBA); Genome-Scale Metabolic Models; Target Identification; Reaction Knock-Out; Structural Proteins; Purine Metabolism; Pyrimidine Metabolism; B.1.1.7; B.1.351

Online: 30 April 2021 (15:14:06 CEST)

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