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Preprint ARTICLE | doi:10.20944/preprints201710.0060.v1

Bandwidth Estimation Tools and Techniques: A Review

Mukta Airon, Neeraj Gupta

Subject: Computer Science And Mathematics, Information Systems Keywords: available bandwidth estimation techniques; active bandwidth estimation techniques; passive bandwidth estimation techniques; model based bandwidth estimation techniques

Online: 10 October 2017 (10:37:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0069.v1

3-D Segmentation of Lung Nodules Using Hybrid Levelsets

Hina Shakir

Subject: Engineering, Control And Systems Engineering Keywords: hybrid level-sets, active contours, nodule segmentation, hybrid deformable model

Online: 5 April 2019 (15:36:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202205.0093.v1

Problems in Speaking Performance of Grade 8 Jade of Tagum City National High School

Genesis Genelza, Floree Jean Lapined, Sarah Jane Suarez, Merry Ann Alvez, Clarice Cabrera, Rachell Sabandal

Subject: Social Sciences, Language And Linguistics Keywords: anxiety; low participation; mother tongue; speaking performance

Online: 7 May 2022 (05:36:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0053.v1

Applying Multi-Output Random Forest Models to Electricity Price Forecast

Camino González, José M. Mira, José A. Ojeda

Subject: Engineering, Control And Systems Engineering Keywords: electricity markets; price forecasting; multi-output models; random forests; conditional inference trees

Online: 18 September 2016 (06:16:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201611.0110.v1

Impacts of Capital Structure on Performance of Banks in a Developing Economy: Evidence from Bangladesh

Md. Nur Alam Siddik, Sajal Kabiraj, Shanmugan Joghee

Subject: Business, Economics And Management, Finance Keywords: capital structure; firm’s performance; panel data; unit root analysis; Bangladesh

Online: 22 November 2016 (09:36:36 CET)

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Preprint REVIEW | doi:10.20944/preprints201706.0035.v1

Role of Saponins in Plant Defense against the Diamondback Moth, Plutella xylostella (L.)

Mubasher Hussain, Muhammad Qasim, Bamisope Steve Bamisile, Liande Wang

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: brassica; food odour preference; HIPVs; Plutella xylostella; trap crop

Online: 6 June 2017 (09:00:57 CEST)

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The diamondback moth (DBM), Plutella xylostella L. (Lepidoptera: Plutellidae) is very destructive crucifers specialized pest that has resulted in significant crop losses worldwide. The pest is well attracted to glucosinolate-containing crucifers such as; Barbarea vulgaris (Brassicaceae), and generally to other plants in the genus Barbarea. B. vulgaris on their part, build up resistance against DBM and other herbivorous insects using glucosinolates; that are plant secondary metabolites used in plant defense–contained only in plants of the order Brassicales. Aside glucosinolates, plants in this genus Barbarea (Brassicaceae) also contain saponins; which is toxic to insects and act as feeding deterrents for plant herbivores, most importantly, DBM, as it was found to prevent the survival of DBM larvae on the plant. Saponins are plant secondary metabolites have been established in higher concentrations in younger in contrast to older leaves within the same plant. Previous studies have found a relationship between ontogenetical changes in the host plant’s saponin content and attraction/resistance to P. xylostella. The younger leaves recorded higher concentrations of glucosinolates and saponins, which naturally attracts the plant herbivores. DBM was reported to have evolved mechanisms to avoid the toxicity of the former. The plant-herbivore had adapted glucosinolates for host plant recognition, feeding and oviposition stimulants. Despite the adaptation for oviposition by P. xylostella adults, larvae of the insect cannot survive on the same plant. An example is in some varieties of B. vulgaris. The triterpenoid saponins which act as feeding deterrents in larvae are responsible for this direct defense mechanism against P. xylostella. In the future, trials by plant breeders could aim at transferring this insect resistance to other crops. The previous trials had limited because of lack of knowledge on the biosynthetic pathways and regulatory networks of saponins. Herein, we discussed exclusively; saponins mediated plant defense mechanisms against the DBM.

Preprint REVIEW | doi:10.20944/preprints202101.0619.v1

Assessing the Potential Contribution of Pfumvudza Towards Climate Smart Agriculture in Zimbabwe: A Review

Never Mujere

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: climate smart agriculture; crop productivity; climate change; Pfumvudza; Zimbabwe

Online: 29 January 2021 (12:40:06 CET)

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Preprint ARTICLE | doi:10.20944/preprints202106.0301.v1

The Urgency of Pancasila Values as a Form of Millennial Generation Character Education

Gabriella Raisza Putri, Moses Glorino Rumambo Pandin

Subject: Arts And Humanities, Humanities Keywords: Character education, Pancasila, the millennial generation, digital era.

Online: 10 June 2021 (15:17:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0386.v1

Menaquinone 7 Stability of Formulations and Its Relationship with Purity Profile

Patrick Orlando, Sonia Silvestri, Fabio Marcheggiani, Ilenia Cirilli, Luca Tiano

Subject: Chemistry And Materials Science, Food Chemistry Keywords: menaquinone-7, stability, purity, food supplement

Online: 19 September 2018 (13:59:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0077.v1

Garlic as Alternative Therapy to Treat Uropathogene Bacteria in Women with Urinary Tract Infection in Lomé, Togo

Banfitebiyi Gambogou, Abdoul Karim Ouattara, Essodolom Taale, Simplice D. Karou, Yaovi A. Ameyapoh, Jacques Simpore

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: Garlic, Antibiotics, Lomé, Uropathogenic bacteria, Urinary Tract Infection, Multidrug resistance and alternative therapy.

Online: 5 September 2018 (01:35:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0300.v1

Improved Hardy Cross Method for Pipe Networks

Dejan Brkić, Pavel Praks

Subject: Engineering, Civil Engineering Keywords: Hardy cross method; pipe networks; piping systems; hydraulic networks; gas distribution

Online: 25 December 2018 (09:07:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints202002.0299.v1

scRNA-seq Profiling of Human Testes Reveals the Presence of ACE2 Receptor, a Target for SARS-CoV-2 Infection, in Spermatogonia, Leydig and Sertoli Cells

Zhengpin Wang, Xiaojiang Xu

Subject: Biology And Life Sciences, Cell And Developmental Biology Keywords: SARS-CoV-2; infection; scRNA-Seq; ACE2; spermatogonia

Online: 21 February 2020 (02:42:15 CET)

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Preprint HYPOTHESIS | doi:10.20944/preprints202303.0441.v1

IgG4 Antibodies Induced by mRNA Vaccines Generate Immune Tolerance to SARS-CoV-2’spike Protein by Suppressing the Immune System

Vladimir N. Uversky, Elrashdy M. Redwan, William Makis, Alberto Rubio-Casillas

Subject: Medicine And Pharmacology, Pulmonary And Respiratory Medicine Keywords: IgG4 antibodies; mRNA vaccines; immuno-tolerance; auto-immunity; SARS-CoV-2; COVID-19.

Online: 27 March 2023 (03:56:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0057.v1

The Analysis of a Translation of Musyakalah Verses in the Holy Quran Published by the Indonesian Department of Religious Affairs

Yayan Nurbayan

Subject: Arts And Humanities, Religious Studies Keywords: Translation, musyakalah, linguistic style, holy Quran, and Arabic language

Online: 6 August 2016 (04:35:45 CEST)

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Musyakalah is one of the Arabic linguistic styles included under the category of majaz. This style is commonly used in Al-Quran. The Indonesian translation of Al-Quran is a case where many of the figures of speech are translated literally, thereby causing serious semantic problems. Thus, the research problem of this is formulated with the following questions: 1) How many musyakalah ayahs are there in Al-Quran?; 2) How are the musyakalah ayahs translated, literally (harfiyya) or interpretatively (tafsiriyya)?; 3) How many ayahs are translated literally and how many are translated interpretatively?; and 4) Which translated musyakalah ayahs have the potential to raise semantic and theological problems? The corpus in this research consists of all musyakalah ayahs in Al-Quran and their translation to Indonesian published by the Department of Religious Affairs of Indonesia. The research adopted a descriptive-semantic method. The findings of this research are: 1) There are only eleven ayahs in Al-Quran using musyakalah style, namely: Alhasyr ayah 19, Ali Imran ayah 54, Annaml ayah 50, Alanfal ayah 30, Asysyura ayah 40, Albaqarah ayah 15, Almaidah 116, Aljatsiah ayah 34, Attaubah ayah 79, Annisa ayah 142, and Albaqarah 194; 2) The musyakalah ayahs translated literally are: Aljatsiah 34, Almaidah 116, Asysura 40, Annaml 50, and Alhasyr 19, whereas the musyakalah ayahs translated interpretatively are Albaqarah 194, Annisa 142, Attaubah 79, Albaqarah 15, Alanfal 30, and Ali Imran 54; 3) Of the eleven musyakalah ayahs, only Alhasyr ayah 19 that is translated correctly and does not have the potential of creating misinterpretation. Meanwhile, the interpretation of the other four ayahs can potentially cause misinterpretation or are against the basic principles of Islam. The six remaining ayahs are translated interpretatively and thus do not have the potential to be misinterpreted; 4) The findings suggest that musyakalah ayahs are more appropriately translated interpretatively. Therefore, the following is recommended: 1) Considering the different characteristics of Arabic and Indonesian languages, studies on Al-Quran translation into Indonesian should continuously be carried out; 2) In order to avoid misinterpretation, it is better that the translation of musyakalah ayahs uses tafsiriyya (interpretative) approach; 3) The harfiyya (literal) and tafsiriyya (interpretative) approaches should be developed for other styles beside musyakalah..

Preprint ARTICLE | doi:10.20944/preprints202001.0157.v2

Exceptional Antioxidant, Non-Cytotoxic Activity of Integral Lemon Pectin from Hydrodynamic Cavitation

Domenico Nuzzo, Laura Cristaldi, Marzia Sciortino, Lorenzo Albanese, Antonino Scurria, Federica Zabini, Claudia Lino, Mario Pagliaro, Francesco Meneguzzo, Marta Di Carlo, Rosaria Ciriminna

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: pectin; antioxidant; lemon; flavonoids; hydrodynamic cavitation; IntegroPectin

Online: 18 March 2020 (02:37:32 CET)

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Preprint ARTICLE | doi:10.20944/preprints201811.0566.v1

Digital Image Restoration in Matlab: A Case Study on Inverse and Wiener Filtering

Mohammad Mahmudur Rahman Khan, Shadman Sakib, Rezoana Bente Arif, Md. Abu Bakr Siddique

Subject: Computer Science And Mathematics, Probability And Statistics Keywords: Color image, grayscale image, motion blurring, random noise, inverse filtering, Wiener filtering, restoration of an image

Online: 23 November 2018 (14:22:33 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0513.v1

Ethical Issues and Challenges in Social Media: A Current Scenario

Dr. Bharat Dhiman

Subject: Social Sciences, Media Studies Keywords: Ethics, Social Media; Facebook; Instagram; Snapchat; Personal Information

Online: 29 March 2023 (15:39:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0137.v1

Advantages and Limitations to the Use of Optical Measurements to Study Sediment Dynamics

Emmanuel Boss, Christopher Sherwood, Paul Hill, Tim Milligan

Subject: Environmental And Earth Sciences, Oceanography Keywords: particle dynamics; optical properties; Sediment;

Online: 7 September 2018 (13:14:39 CEST)

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Preprint CASE REPORT | doi:10.20944/preprints202008.0640.v1

Rapid Recovery in Six Patients with COVID-19 Respiratory Failure after Treatment with Vasoactive Intestinal Peptide

Jonathan Javitt, Jihad Youssef

Subject: Medicine And Pharmacology, Pulmonary And Respiratory Medicine Keywords: VIP; COVID-19; respiratory failure; vasoactive intestinal peptide; aviptadil; ARDS

Online: 28 August 2020 (11:38:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202004.0140.v1

A Mathematical Model of COVID-19 Using Fractional Derivative: Outbreak in India with Dynamics of Transmission and Control

Amjad S. Shaikh, Iqbal N. Shaikh, Kottakkaran Sooppy Nisar

Subject: Computer Science And Mathematics, Analysis Keywords: mathematical models; coronavirus; caputo-fabrizio derivative; basic reproduction number; existence and stability; numerical simulations

Online: 9 April 2020 (08:12:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201710.0192.v1

How to Hash a Set

RIchard O'Keefe

Subject: Computer Science And Mathematics, Computer Science Keywords: set; hash table; hash function; commutative semigroup

Online: 31 October 2017 (04:35:55 CET)

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Preprint ARTICLE | doi:10.20944/preprints201611.0122.v1

The Mediating Role of Green Organizational Culture between Sustainability and Green Innovation: A Research in Turkish Companies

Mübeyyen Tepe Küçükoğlu, Recep İbrahim Pınar

Subject: Business, Economics And Management, Business And Management Keywords: green innovation; green organizational culture; sustainability; sustainability drivers

Online: 24 November 2016 (11:09:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints202009.0631.v1

Engineering Novel Epitope-Based Subunit Vaccine against SARS-CoV-2 by Exploring the Immunoinformatics Approach

Bishajit Sarkar, Md. Asad Ullah, Yusha Araf, Mohammad Shahedur Rahman

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: COVID-19; SARS-CoV-2; In silico; Immunoinformatics; Vaccine designing

Online: 26 September 2020 (13:01:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201708.0010.v1

Solar Radiation–The Estimation of the Optimum Tilt Angles for South-Facing Surfaces in Pristina

Xhevat Berisha, Arianit Zeqiri, Drilon Meha

Subject: Engineering, Mechanical Engineering Keywords: solar energy; gains; estimation; tilt angle; south-facing; surface; Pristina

Online: 3 August 2017 (10:51:13 CEST)

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Preprint REVIEW | doi:10.20944/preprints202007.0663.v1

Design Criteria for the Floating Walkways and Pontoons Considering the Extreme Climatic Conditions

Sami M. Ayyad

Subject: Engineering, Marine Engineering Keywords: identification; manufacturing; transportation; installation

Online: 28 July 2020 (04:31:56 CEST)

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Preprint CONCEPT PAPER | doi:10.20944/preprints202004.0290.v1

COVID-19 Pandemic and the Digital Revolution in Academia and Higher Education

Wadim Strielkowski

Subject: Social Sciences, Education Keywords: academia; higher education; coronavirus pandemic; online tuition; social distancing; COVID-19; digital revolution

Online: 17 April 2020 (01:56:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201710.0033.v1

Effect of Tertiary Education Tax Fund (TATFUND) in Management of Nigerian Tertiary Institutions

Azubike Oraka, Okenwa Ogbodo, Raymond Ezejiofor

Subject: Business, Economics And Management, Accounting And Taxation Keywords: Tertiary Education, TETFUND, Management, University

Online: 6 October 2017 (09:05:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0115.v1

Detailed Modeling of the Direct Reduction of Iron Ore in a Shaft Furnace

Hamzeh Hamadeh, Olivier Mirgaux, Fabrice Patisson

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: ironmaking; direct reduction; iron ore; DRI; shaft furnace; mathematical model; heterogeneous kinetics; heat and mass transfer

Online: 6 September 2018 (12:14:01 CEST)

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Preprint ARTICLE | doi:10.3390/sci2030081

Atmospheric Temperature and CO<sub>2</sub>: Hen-or-Egg Causality?

Demetris Koutsoyiannis, Zbigniew Kundzewicz

Subject: Environmental And Earth Sciences, Environmental Science Keywords: temperature; global warming; greenhouse gases; atmospheric CO₂ concentration

Online: 14 September 2020 (00:00:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202209.0430.v2

COVID-19 Vaccines: The Impact on Pregnancy Outcomes and Menstrual Function

James A. Thorp, Claire Rogers, Michael P. Deskevich, Stewart Tankersley, Albert Benavides, Megan D. Redshaw, Peter A. McCullough

Subject: Medicine And Pharmacology, Obstetrics And Gynaecology Keywords: COVID-19 vaccines; menstruation; pregnancy outcomes; Influenza vaccines; VAERS; stillbirth; miscarriage

Online: 30 December 2022 (09:39:28 CET)

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Preprint REVIEW | doi:10.20944/preprints201908.0015.v1

Factors Affecting Sustainable Apparel Consumption in Emerging Countries: A Systematic Literature Review

Nornajihah Nadia Hasbullah, Zuraidah Sulaiman, Adaviah Mas'od

Subject: Business, Economics And Management, Marketing Keywords: sustainable apparel consumption; emerging countries; value; subjective norm; perceived behavioural control; knowledge

Online: 2 August 2019 (05:26:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201705.0136.v1

Instantaneous Symmetrical Component Estimator Using Second Order Generalized Integrator under Distorted Voltage Conditions

Emre Ozsoy, Sanjeevikumar Padmanaban, Pierluigi Siano, Fiaz Ahmad, Rasool Akhtar, Asif Sabanovic, Vincenzo Loia

Subject: Engineering, Electrical And Electronic Engineering Keywords: generalized integrator; grid connected inverters; phase locked loops; renewable energy; symmetrical components; unbalanced voltage

Online: 18 May 2017 (04:40:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0018.v1

Anticancer and Antioxidant Activities of Some Algae from Western Libyan Coast

Rabia Alghazeer, Mahboba Enaeli, Nazlin K. Howell

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: polyphenols, flavonoids, seaweeds, antioxidant activity, anticancer activity

Online: 5 September 2016 (14:23:52 CEST)

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Preprint REVIEW | doi:10.20944/preprints201908.0316.v1

Airborne Microplastics: A Review Study on Method for Analysis, Occurrence, Movement and Risks

Enyoh Christian Ebere, Verla Andrew Wirnkor, Verla Evelyn Ngozi, Ibe Francis Chizoruo, Amaobi Collins Emeka

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: air pollution; dermal route; fibers; health risk; inhalation; micropollutants

Online: 30 August 2019 (05:08:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202004.0457.v1

Reduced Vitamin K Status as A Potentially Modifiable Prognostic Risk Factor in COVID-19

Anton S.M. Dofferhoff, Ianthe Piscaer, Leon J. Schurgers, Jona Walk, Jody M.W. van den Ouweland, Tilman M. Hackeng, Petra Lux, Cecile Maassen, Esther G.A. Karssemeijer, Emiel F.M. Wouters, Rob Janssen

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: COVID-19; vitamin K; vitamin K antagonists; SARS-CoV-2; matrix Gla protein; desmosine; protein C; protein S

Online: 25 April 2020 (03:13:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0114.v1

Confronting Urban Planning Challenges in Chipata District, Zambia: Notes from the Field

Camille Tuason Mata

Subject: Social Sciences, Urban Studies And Planning Keywords: International development, urban planning culture, social maladies, local authority, Chipata District, Zambia

Online: 9 April 2019 (12:53:50 CEST)

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Preprint REVIEW | doi:10.20944/preprints202303.0344.v1

Strategies for the Management of Spike Protein-Related Pathology

Matthew T.J. Halma, Cristof Plothe, Theresa Lawrie

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: Long Covid; Covid-19 vaccine; thrombosis; clots; inflammation; therapeutics

Online: 20 March 2023 (04:37:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints201608.0190.v1

Understanding the Cognitive Processes Underlying Performance in the IELTS Listening Comprehension Test

Mohammad Ghahramanlou, Zahra Zohoorian, Purya Baghaei

Subject: Social Sciences, Cognitive Science Keywords: listening comprehension; subskills; validity

Online: 22 August 2016 (11:35:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0226.v1

The Effect of Heat Treatments on the Fatigue Strength of H13 Hot Work Tool Steel

Ruhi Yeşildal

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Fatigue, heat treatment, hot-work tool steel

Online: 18 December 2018 (16:37:32 CET)

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Preprint ARTICLE | doi:10.20944/preprints201703.0238.v2

Applying Quantum Optimization Algorithms for Linear Programming

Mert Side, Volkan Erol

Subject: Computer Science And Mathematics, Computer Science Keywords: linear programming; optimization; quantum algorithms; complexity

Online: 14 April 2017 (04:16:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0025.v1

Modeling and Simulation of Fuzzy logic based Hybrid power for Electrification System in case of Ashuda Villages

Abaraham Hizkiel, Gantasala Lakshmi

Subject: Engineering, Electrical And Electronic Engineering Keywords: Key Words: PV-Wind-Hydro Hybrid Power System, Dynamic Modeling, Load Profile, Grid Extension, smart micro grid, fuzzy logic controller, and mat lab/Simulink

Online: 2 October 2018 (14:03:38 CEST)

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ABSTRACT Ethiopia is a developing country, where majority of the population lives in rural areas without access to electricity. 83% of the total population of the country use traditional biomass energy as a basic source of energy. In contrast, the country is endowed with sufficient renewable energy resources which can be used as a standalone electric energy supply system for electrifying remote areas of the country. These resources are mainly micro hydropower and wind which can be used individually or the best combination of one another. The application of hybrid renewable energy system has become an important alternative solution for rural electrification program. The Modeling and control of a hybrid PV-Wind-Hydro DG system is also addressed. Dynamic models for the major system components, namely, wind energy conversion system, PV energy conversion system, hydro, inverter, and overall fuzzy logic controller units are developed. Then, a simulation model for the proposed hybrid power system has been developed using MATLAB /Simulink environment. This is done by creating subsystem sets of the major dynamic component models and then assembling into a single aggregate model. The overall power management strategy for coordinating and/or controlling the different energy sources is also presented in the thesis work. Generally there are 800 households with total electric demand of 71.6KW.To satisfy this demand 52%, 35% and 13% is to be contributed from wind/hydro/solar respectively. To use the power economically fuzzy logic controller is used. The controller monitors the demand and the available sources and then switches to the appropriate power supply according to the written rules. Simulations have been carried out to verify the system dynamic performance using a practical load profile and weather data. The result shows that the overall power management strategy is effective and the load demand is balanced. To complete this work, a grid extension from the closest substation has been compared with hybrid system. Cost of the grid extension is estimated based on the data obtained from EEP office. This is done in order to compare the cost of the designed hybrid power system against the cost of grid extension. The result shows that breakeven grid extension distance to be 23.9km which indicates that grid extension is preferable.

Preprint ARTICLE | doi:10.20944/preprints201808.0301.v1

Estimation of Salinity Intrusion by Using Landsat 8 OLI Data in The Mekong Delta, Vietnam

Phuong Ha Tran, Anh Kim Nguyen, Yuei-An Liou, Phung Phi Hoang, Hung Thanh Nguyen

Subject: Environmental And Earth Sciences, Geography Keywords: Salinity intrusion; climate change; rising sea level; electrical conductivity; Landsat 8 OLI; Tra Vinh Province; Mekong Delta

Online: 17 August 2018 (11:41:14 CEST)

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Salinity intrusion is one of the most serious consequences of climate change coupled with rising sea level that significantly affects agricultural activities in many parts of the world. This phenomenon has increasingly become more serious and frequently occurred in the Mekong Delta of Vietnam. As a result, Vietnam has been ranked among top five countries where have been devastatingly impacted by climate change, in particular, its Tra Vinh Province characterized by coastal plain and alluvial deposit. In addition, this area is of the tropical monsoon zone of long rainy season with source of salt brought from the sea by the tides and sea level rise. Regions that are contaminated by salt are located in lowland and often suffer from floods linking to tidal effects with salty water from river systems and channels. Soil salinity evaluation is critical for coastal protection, restoration, and agricultural planning since it can be considered as an agricultural indicator to evaluate quality of soil. Here, we attempt to estimate the soil salinity in Tra Vinh Province, in the Mekong Delta of Vietnam. Landsat 8 OLI images are utilized to derive indices for soil salinity evaluation including single bands, Vegetation Soil Salinity Index (VSSI), Soil Adjusted Vegetation Index (SAVI), Normalized Difference Vegetation Index (NDVI), and Normalized Difference Salinity Index (NDSI). Subsequently, satistical analysis between soil salinity, electrical conductivity (EC, dS/m), and environmental indices derived from Landsat 8 OLI image is performed. Results indicate that spectral value of Near Infrared (NIR) band and VSSI are highly correlated with EC (R2 = 0.7779 and R2 = 0.6957, respectively) in comparison with the other indices. Comparative results show that soil salinity derived from Landsat 8 is consistent with in situ data. Findings of this study demonstrate that Landsat 8 OLI images reveal a high potential for spatiotemporally monitoring the magnitude of soil salinity at the top soil layer. Outcomes of this study are useful for agricultural activities, planners, and farmers by providing the base map of soil salinity contamination for better selection of accomodating crop types to reduce economical lost in the context of climate change. Our proposed method that estimates soil salinity using satellite-derived variables can be applied in the other regions.

Preprint ARTICLE | doi:10.20944/preprints201806.0219.v1

A Proposal of Methodology for Designing Big Data Warehouses

Francesco Di Tria, Ezio Lefons, Filippo Tangorra

Subject: Computer Science And Mathematics, Information Systems Keywords: Big data technology; Business intelligence; Data integration; System virtualization.

Online: 13 June 2018 (16:19:48 CEST)

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Preprint REVIEW | doi:10.20944/preprints201608.0021.v1

E-waste Management in South Africa: Case Study: Cathode Ray Tubes Recycling Opportunities

Pontsho Ledwaba, Ndabenhle Sosibo

Subject: Environmental And Earth Sciences, Environmental Science Keywords: electrical and electronic waste; recycling; legislative frameworks; environmental management; landfilling

Online: 3 August 2016 (12:33:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201703.0111.v1

Open Hardware and Software Star Tracker: An Opportunity for Collaboration in the Emerging Cubesat Community

Samuel T. Gutierrez, Cesar I. Fuentes, Marcos A. Diaz

Subject: Engineering, Control And Systems Engineering Keywords: star tracker; attitude determination; CubeSat

Online: 16 March 2017 (07:12:22 CET)

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Preprint ARTICLE | doi:10.20944/preprints201811.0059.v1

The Construction Kit and the Assembly Line — Walter Gropius’ Concepts for Rationalizing Architecture

Atli Magnus Seelow

Subject: Engineering, Architecture, Building And Construction Keywords: History of Modern Architecture; 20th Century; Walter Gropius; Rationalization; Construction Kit; Assembly Line; Weimar Republic; Bauhaus

Online: 2 November 2018 (13:23:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints202009.0351.v1

A Measurement of Shipbuilding Productivity

Paulo Z. Roque, José Manuel Gordo

Subject: Engineering, Marine Engineering Keywords: Shipbuilding; productivity; block's manufacturing; manufacturing cost

Online: 16 September 2020 (07:08:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202106.0439.v1

Meycauayan, an Industrial City in Bulacan, Philippines: Heavy Metal Pollution in Soil and Surface Sediments and Their Relationship to Environmental Indicators

Reymar Diwa, Custer Deocaris, Aileen Orbecido, Arnel Beltran, Edgar Vallar, Maria Cecilia Galvez, Lawrence Belo

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: heavy metals; MMORS, Meycauayan River; soil pollution; multivariate analysis; Sediment Quality Guidelines; Single Pollution Index

Online: 16 June 2021 (10:34:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201607.0064.v1

Modeling, Simulation and Optimization of agricultural greenhouse microclimate by the application of artificial intelligence and / or fuzzy logic

Didi Faouzi, Nacereddine Bibi-Triki

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: Greenhouse , microclimate , Modelling , fuzzy controller , Optimization , Solar Energy , Energy saving , Climate Model ,Greenhouse effect , Temperature

Online: 21 July 2016 (09:44:16 CEST)

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Agricultural greenhouse is largely answered in the agricultural sphere, despite the shortcomings it has, including overheating during the day and night cooling which sometimes results in the thermal inversion mainly due to its low inertia. The glasshouse dressed chapel is relatively more efficient than the conventional tunnel greenhouse. Its proliferation on the ground is more or less timid because of its relatively high cost[14-22]. Agricultural greenhouse aims to create a favorable microclimate to the requirements of growth and development of culture, from the surrounding weather conditions, produce according to the cropping calendars fruits, vegetables and flower species out of season and widely available along the year. It is defined by its structural and functional architecture, the quality thermal, mechanical and optical of its wall, with its sealing level and the technical and technological accompanying[12-13]. The greenhouse is a very confined environment, where multiple components are exchanged between key stakeholders and them factors are light, temperature and relative humidity[8]. This state of thermal evolution is the level sealing of the cover of its physical characteristics to be transparent to solar, absorbent and reflective of infrared radiation emitted by the enclosure where the solar radiation trapping effect otherwise called "greenhouse effect" and its technical and technological means of air that accompany. The socio-economic analysis of populations in the world leaves appear especially the last two decades of rapid and profound transformations These changes are accompanied by changes in eating habits, mainly characterized by rising consumption spread along the year[14]. To effectively meet this demand, greenhouse-systems have evolved, particularly towards greater control of production conditions (climate, irrigation, ventilation techniques, CO2 supply, etc ...). Technological progress has allowed the development of greenhouses so that they become increasingly sophisticated and of an industrial nature (heating, air conditioning, control, computer, regulation, etc ...). New climate driving techniques have emerged, including the use of control devices from the classic to the use of artificial intelligence[10-11] such as neural networks and / or fuzzy logic, etc... As a result, the greenhouse growers prefer these new technologies while optimizing the investment in the field to effectively meet the supply and demand of these fresh products cheaply and widely available throughout the year.

Preprint ARTICLE | doi:10.20944/preprints201809.0108.v1

Growth Response and Root Characteristics of Lettuce Grown in Aeroponics, Hydroponics and Substrate Culture

Qiansheng Li, Xiaoqiang Li, Bin Tang, Mengmeng Gu

Subject: Biology And Life Sciences, Horticulture Keywords: aeroponics; soilless culture; root growth; root/shoot ratio

Online: 6 September 2018 (04:20:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0196.v1

Investigation of the Mediterranean Cyclone Cleopatra Using the WRF Model: Sensitivity Analysis and Ensemble Forecasting Approach

Markos P. Mylonas, Kostas C. Douvis, Iliana D. Polychroni, Nadia Politi, Panagiotis T. Nastos

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: WRF; Medicane; extra-tropical cyclone; hybrid cyclone; sensitivity analysis

Online: 10 October 2018 (03:43:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201903.0031.v1

Organ-on-Chip In Development:Towards a roadmap for Organs-on-Chip

M. Mastrangeli, S. Millet, the ORCHID partners, J. van den Eijnden-van Raaij

Subject: Engineering, Bioengineering Keywords: Organ-on-Chip, tissue engineering, microfluidic technology

Online: 4 March 2019 (10:11:22 CET)

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Preprint ARTICLE | doi:10.20944/preprints202104.0147.v1

The Factors Affecting Labour Productivity in the Construction of Prestressed Concrete Buildings in Ghana

Muhammad Akbar, Kojo Kumah Darkwah, Azka Amin, Pan Huali, Ou Guoqiang, Muhammad Asghar

Subject: Engineering, Automotive Engineering Keywords: Labour productivity; prestressed concrete floors; relative importance index (Smart-PLS. Ghana)

Online: 5 April 2021 (14:31:34 CEST)

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Preprint BRIEF REPORT | doi:10.20944/preprints202004.0154.v1

Comparative Analysis Based on the Spike Glycoproteins of SARS-CoV2 Isolated from COVID 19 Patients of Different Countries

Preeti Mangar, Smriti Pradhan, Subecha Rai, Khusboo Lepcha, Vivek Kumar Ranjan, Aditi Rai

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: SARS-CoV2; spike glycoprotein; mutation

Online: 9 April 2020 (13:15:21 CEST)

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Preprint HYPOTHESIS | doi:10.20944/preprints201702.0018.v1

Mastery Learning Strategy and Learning Retention: Effects on Senior Secondary School Students’ Achievement in Physical Geography in Ganye Educational Zone, Nigeria

Jacob Filgona, Joel Filgona, Linus, K. Sababa

Subject: Social Sciences, Education Keywords: mastery learning strategy; learning retention; achievement; physical geography; conventional method

Online: 5 February 2017 (10:01:59 CET)

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Preprint REVIEW | doi:10.20944/preprints201801.0166.v1

Hybrid Carbon-based Clathrates for Energy Storage

Kwai S. Chan

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: carbon clathrates; hybrid carbon-silicon clathrates; hybrid carbon-nitrogen clathrates; electrode materials; hydrogen storage materials; energy storage materials; hard materials

Online: 18 January 2018 (05:08:03 CET)

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Preprint ARTICLE | doi:10.20944/preprints201809.0516.v1

Design, Simulation and Hardware Implementation of Shunt Hybrid Compensator using Synchronous Rotating Reference Frame Based Control Technique

Balasubramanian R, Parkavi kathirvelu K, Sankaran R, Rengarajan Amirtharajan

Subject: Engineering, Electrical And Electronic Engineering Keywords: Harmonics; Hybrid power filter; Active power filter; Power quality; Total harmonic distortion.

Online: 26 September 2018 (14:26:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201707.0004.v1

Environmental Footprint of Domestic Dogs and Cats

Jose Herrera-Camacho, Eduardo Baltierra-Trejo, Paul Adolfo Taboada-González, Luisa Fernanda Gonzalez, Liliana Marquez-Benavides

Subject: Environmental And Earth Sciences, Environmental Science Keywords: life cycle analysis, dogs; cats; carbon footprint; environmental pawprint

Online: 4 July 2017 (16:00:10 CEST)

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Preprint REVIEW | doi:10.20944/preprints201810.0708.v1

Overview of Genomic Tools for Circular Visualization in next-Generation Genomic Sequencing Era

Alisha Parveen, Sukank Khurana, Abhishek Kumar

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: circular visualization; circos; genomics; next-generation sequencing

Online: 30 October 2018 (07:06:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints201801.0242.v1

A General Design Procedure for Symmetrical Windings of Electrical Machines

Massimo Caruso, Antonino Oscar Di Tommaso, Fabrizio Marignetti, Rosario Miceli, Giuseppe Ricco Galluzzo

Subject: Engineering, Electrical And Electronic Engineering Keywords: Rotating electrical machines; winding design; symmetrical winding; star of slots.

Online: 25 January 2018 (12:18:58 CET)

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Preprint REVIEW | doi:10.20944/preprints202012.0173.v1

COVID-19 and Religion: Risks and Opportunities

Danilo Buonsenso, Walver Malorni, Grazia Leuconoe Sisti, Umberto Moscato

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: covid-19; religion; health

Online: 7 December 2020 (15:36:05 CET)

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Preprint ARTICLE | doi:10.20944/preprints201607.0071.v1

An Implementation of Real-Time Phased Array Radar Fundamental Functions on DSP-Focused, High-Performance Embedded Computing Platform

Xining Yu, Yan Zhang, Ankit Patel, Allan Zahrai, Mark Weber

Subject: Engineering, Electrical And Electronic Engineering Keywords: phased array radar; embedded computing; serial RapidIO, MPAR

Online: 23 July 2016 (10:43:50 CEST)

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Preprint TECHNICAL NOTE | doi:10.20944/preprints201805.0238.v1

New Advances in the Inspection of Flare Stacks

Carlos Martín Díaz de Espada, María Dolores Rubio Cintas

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: flare stack; non-destructive testing; inspection; guy wires; drones

Online: 17 May 2018 (08:00:41 CEST)

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Preprint REVIEW | doi:10.20944/preprints201810.0098.v1

Flood Prediction Using Machine Learning, Literature Review

Amir Mosavi, Pinar Ozturk, Chau Kwok-wing

Subject: Environmental And Earth Sciences, Environmental Science Keywords: flood prediction; machine learning; forecasting

Online: 5 October 2018 (11:52:28 CEST)

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Floods are among the most destructive natural disasters, which are highly complex to model. The research on the advancement of flood prediction models has been contributing to risk reduction, policy suggestion, minimizing loss of human life and reducing the property damage associated with floods. To mimic the complex mathematical expressions of physical processes of floods, during the past two decades, machine learning (ML) methods have highly contributed in the advancement of prediction systems providing better performance and cost effective solutions. Due to the vast benefits and potential of ML, its popularity has dramatically increased among hydrologists. Researchers through introducing the novel ML methods and hybridization of the existing ones have been aiming at discovering more accurate and efficient prediction models. The main contribution is to demonstrate the state of the art of ML models in flood prediction and give an insight over the most suitable models. The literature where ML models are benchmarked through a qualitative analysis of robustness, accuracy, effectiveness, and speed have been particularly investigated to provide an extensive overview on various ML algorithms usage in the field. The performance comparison of ML models presents an in-depth understanding about the different techniques within the framework of a comprehensive evaluation and discussion. As the result, the paper introduces the most promising prediction methods for both long-term and short-term floods. Furthermore, the major trends in improving the quality of the flood prediction models are investigated. Among them, hybridization, data decomposition, algorithm ensemble, and model optimization are reported the most effective strategy in improvement of the ML methods. This survey can be used as a guideline for the hydrologists as well as climate scientists to assist them choosing the proper ML method according to the prediction task conclusions.

Preprint CASE REPORT | doi:10.20944/preprints201712.0044.v1

Study on Vibration of Reciprocating Pump Pipelines Based on Pressure Pulsation Theory

Hongfang Lu

Subject: Engineering, Energy And Fuel Technology Keywords: reciprocating pump; oil station; pipeline; vibration; pressure pulsation

Online: 7 December 2017 (14:46:23 CET)

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Preprint REVIEW | doi:10.20944/preprints202004.0069.v1

Good in The Worst: COVID-19 Restrictions and Ease in Global Air Pollution

Naser A. Anjum

Subject: Environmental And Earth Sciences, Environmental Science Keywords: coronavirus; SARS-CoV-2; COVID-19; respiratory diseases; air pollution

Online: 6 April 2020 (15:48:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201801.0123.v1

Three-Dimensional Facies Analysis using Object-Based Geobody Modeling: A Case Study for the Farewell Formation, Maui Gas Field, Taranaki Basin, New Zealand

AKM Eahsanul Haque, Md. Aminul Islam, Mohamed Ragab Shalaby

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: geobody modeling, object-based facies modeling (OBFM), variogram analysis, farewell formation, paleo-depositional environment

Online: 15 January 2018 (10:01:00 CET)

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Preprint REVIEW | doi:10.20944/preprints201607.0075.v1

Travel mode detection based on GPS raw data collected by smartphones: a systematic review of the existing methodologies

Linlin Wu, Biao Yang, Peng Jing

Subject: Social Sciences, Behavior Sciences Keywords: travel mode detection; GPS raw data; smartphones

Online: 25 July 2016 (06:34:26 CEST)

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Preprint REVIEW | doi:10.20944/preprints201610.0049.v1

A Review of Tropical Plants with Antifungal Activities against Plant Fungal Pathogens

Dewa Ngurah Suprapta

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: plant extracts; antifungal activity; fungal pathogens

Online: 13 October 2016 (11:50:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0081.v1

Remote Sensing for Detection and Monitoring of Vegetation Affected by Oil Spills

Bashir Adamu, Booker Ogutu, Kevin Tansey

Subject: Environmental And Earth Sciences, Environmental Science Keywords: spectral reflectance; vegetation indices; vegetation; remote sensing; oil spill; mangrove forest; oil pollution; Landsat 8

Online: 23 September 2016 (06:19:49 CEST)

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Preprint REVIEW | doi:10.20944/preprints201910.0078.v1

Small-Scale Rotor Aeroacoustics for Drone Propulsion: A Review of Noise Sources and Control Strategies

Paolo Candeloro, Tiziano Pagliaroli, Daniele Ragni, Silvia Di Francesco

Subject: Engineering, Mechanical Engineering Keywords: drones; aerodynamics; aeroacoustics; rotor noise; airframe noise; porous material

Online: 8 October 2019 (06:11:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201808.0418.v1

Analyzing academic stress in adolescence and their relationship with students’ psychological and physical well-being: Development and validation of the Questionnaire of Academic Stress in Secondary Education

Rafael García-Ros, Francisco Pérez-González, José M. Tomás

Subject: Social Sciences, Psychology Keywords: academic stress; psychological and physical well-being; adolescence; secondary education; validity; reliability; gender and age differences

Online: 23 August 2018 (15:32:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0386.v1

Accelerated Production of Hesperidin-rich Citrus Pectin from Waste Citrus Peel for Prevention and Therapy of COVID-19

Francesco Meneguzzo, Rosaria Ciriminna, Federica Zabini, Mario Pagliaro

Subject: Biology And Life Sciences, Virology Keywords: hesperidin; COVID-19; pectin; flavonoids; hydrodynamic cavitation; IntegroPectin

Online: 26 March 2020 (13:59:28 CET)

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Preprint ARTICLE | doi:10.20944/preprints202009.0758.v1

Enterococcus faecalis Polymicrobial Interactions Facilitate Biofilm Formation, Antibiotic Recalcitrance, and Persistent Colonization of the Catheterized Urinary Tract

Jordan Gaston, Marissa Andersen, Alexandra Johnson, Kirsten Bair, Christopher Sullivan, L. Beryl Guterman, Ashley White, Aimee Brauer, Brian Learman, Ana Flores-Mireles, Chelsie Armbruster

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Enterococcus faecalis; Proteus mirabilis; Polymicrobial; Biofilm; Catheter; Urinary Tract Infection

Online: 30 September 2020 (16:39:51 CEST)

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Working Paper ARTICLE

Feasibility of Rocket Artillery Systems With Reusable First Stage

Mikhail Shubov

Subject: Physical Sciences, Applied Physics Keywords: guided artillery rockets; rocket launcher aircraft

Online: 22 December 2019 (14:21:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints202011.0600.v1

An Assessment of Urban Development and Control Mechanisms in Selected Nigerian Cities

Barnabas W. Qurix, Lawrence C. Edomwonyi-Otu, Danjuma Jise

Subject: Business, Economics And Management, Accounting And Taxation Keywords: development controls; physical planning; regulations; cities; urban development; polarization; infrastructural deficit; Kaduna; Abuja; Lagos

Online: 24 November 2020 (08:09:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202008.0325.v1

Structural Characterization of Graphite Nanoplatelets Synthesized from Graphite Flakes

HANI MANSSOR ALBETRAN

Subject: Chemistry And Materials Science, Nanotechnology Keywords: Carbon; Crystal structure; Graphene; Graphite; Nanoplatelet.

Online: 14 August 2020 (11:58:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201710.0079.v1

The Impact of External Shading Design on the Building Energy Consumption

Hamid Eskandari, Mehdi Saedvandi, Mohammadjavad Mahdavinejad

Subject: Engineering, Energy And Fuel Technology Keywords: Shadings; Thermal Performance; Iwan; experimental; EnergyPlus

Online: 12 October 2017 (05:49:55 CEST)

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Preprint SHORT NOTE | doi:10.20944/preprints202012.0493.v2

Future Considerations for the mRNA–Lipid Nanoparticle Vaccine Platform

Botond Igyártó, Sonya Jacobsen, Sonia Ndeupen

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: mRNA-LNP vaccines; side effects; dendritic cells

Online: 24 December 2020 (13:51:51 CET)

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Preprint ARTICLE | doi:10.20944/preprints201607.0085.v1

Garments Texture Design Class Identification Using Deep Convolutional Neural Network

S.M. Sofiqul Islam, Emon Kumar Dey, Md. Nurul Ahad Tawhid, B. M. Mainul Hossain

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: CNN; Deep Learning; AlexNet; VGGNet; Texture Descriptor; Garment Categories; 13 Garment Trend Identification; Design Classification for Garments.

Online: 27 July 2016 (15:39:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201806.0360.v1

Rotation Dynamics of Star Block Copolymers under Shear Flow

Diego Jaramillo-Cano, Christos N. Likos, Manuel Camargo

Subject: Physical Sciences, Condensed Matter Physics Keywords: Star block-copolymers; hybrid mesoscale simulation technique; rotational frequency; laboratory frame; Eckart frame; geometrical approach

Online: 22 June 2018 (15:12:59 CEST)

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Working Paper REVIEW

Marine Red Alga Porphyridium sp. as a Source of Sulfated Polysaccharides (SPs) for Combating Against COVID-19

Vinod Nagle, Mahadev Gaikwad, Yogesh Pawar, Santanu Dasgupta

Subject: Biology And Life Sciences, Virology Keywords: Anti-viral; Carrageenan; Coronavirus; COVID-19; Porphyridium; sulfated polysaccharides (SPs)

Online: 10 April 2020 (07:49:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201610.0126.v1

Comments about Rietveld Analysis and Tolerance Factor: Y Doped BaTiO₃

I. A. Lira-Hernández, F. R. Barrientos-Hernández, M. Pérez-Labra, A. M. García-Mercado, J. A. Romero-Serrano

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: A. Ceramics; A. Oxides; C. X-ray diffraction; D. Crystal structure; D. Microstructure

Online: 28 October 2016 (08:09:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202004.0165.v2

The Covid-19 Virus Double Pathogenic Mechanism. A New Perspective

Carlo Brogna

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: Covid-19; Blastn; toxins protein; ACh; aChE; BuChE; CBP; Zero Point; bungaro-toxins, phospholipase A2; similar prothrombin activator protein

Online: 19 April 2020 (06:51:53 CEST)

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Preprint REVIEW | doi:10.20944/preprints202104.0230.v1

Interprofessional Collaboration Improves Patient Safety: A Review

Muh Abdurrouf, Moses Glorino Rumambo Pandin

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: interprofessional collaboration; nurse; patient safety

Online: 8 April 2021 (10:29:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201906.0030.v1

Is Excessive Prenatal Ultrasonography a Risk Factor for Autism? A Literature Review

Hissa Moammar, Rabi Sulayman

Subject: Medicine And Pharmacology, Pediatrics, Perinatology And Child Health Keywords: autism; autistic spectrum disorder; children; behavior; ultrasonography; prenatal; pregnancy

Online: 4 June 2019 (12:56:37 CEST)

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For the past several decades, abdominal prenatal ultrasonography has been the most significant technology in obstetrics with a long-established application. However, the frequency, exposure time, thermal and cavitation exposure indices, and increased acoustic output of the ultrasonic waves may be harmful to the embryo/fetus and might increase susceptibility to Autism Spectrum Disorder (ASD). The increase in the prevalence of ASD is associated with an affluent ethnicity, high socioeconomic status, and high parental education where prenatal ultrasonography is readily available and affordable. Enhanced biophysical adverse effects may link the analogous increase in prenatal ultrasonography and autism, and prenatal ultrasonography may emerge as a risk factor for autism. Radiography usage provides historical evidence for this fact: the predominant past opinion was that exposure to X-rays during pregnancy caused no significant risk to a fetus. However, the association between X-ray exposure and childhood leukemia was only established 40 years after X-ray use began. This review focuses on excessive PUS usage and ASD development. Public Abstract Advancements in medical technology over the past several decades have made prenatal ultrasound more frequently accessible to expecting mothers during their pregnancy, especially for the affluent. A parallel development in health care is the increase in autism diagnoses (Autism Spectrum Disorder, or ASD) in children of affluent families. There is a general lack of studies of the impact of prenatal ultrasound on fetuses, especially around varying attributes such as frequency, duration of exposure, and thermal and cavitation indices. There is also a historical precedent set, where exposing fetuses to X-rays was not found to be harmful until it was linked to the development of childhood leukemia decades later. This paper seeks to establish a need to further study these attributes of prenatal ultrasound overuse and their possible impact on a developing fetus, with a special focus on the occurrence of Autism.

Preprint BRIEF REPORT | doi:10.20944/preprints202005.0094.v1

Covid-19 Situation in Bangladesh

Abdul Kader Mohiuddin

Subject: Public Health And Healthcare, Health Policy And Services Keywords: COVID-19 Lockdown; Shortage of PPEs; Global Pandemic Crisis; Incentives for Officials at Risk

Online: 6 May 2020 (08:45:39 CEST)

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Working Paper ARTICLE

A Comparative Analysis of Image Denoising Problem: Noise Models, Denoising Filters and Applications

Subrato Bharati, Tanvir Zaman Khan, Prajoy Podder, Nguyen Quoc Hung

Subject: Computer Science And Mathematics, Computer Vision And Graphics Keywords: Gaussian noise; Speckle Noise; Mean square error(MSE); DE noising filters; Maximum difference value (MD); Peak signal to noise ratio(PSNR)

Online: 4 June 2020 (05:52:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202004.0506.v1

The Truth behind the Fallen Leaves: Untold Stories of Unsuccessful LET Examinees

Joseph Dave Pregoner

Subject: Social Sciences, Education Keywords: case study; LET; failure

Online: 29 April 2020 (12:18:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0311.v1

Pathological Study of the 2019 Novel Coronavirus Disease (COVID-19) through Post-Mortem Core Biopsies

Sufang Tian, Yong Xiong, Huan Liu, Li Niu, Jianchun Guo, Meiyan Liao, Shu-Yuan Xiao

Subject: Medicine And Pharmacology, Pathology And Pathobiology Keywords: SARS-CoV-2; COVID-19; pathology; post-mortem biopsy

Online: 20 March 2020 (09:24:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints201812.0255.v1

The Role of Social Networks on Socialization and Political Participation of Political science Students of Islamic Azad University, South Tehran Branch (2007- 2017)

Garineh Keshishyan Siraki

Subject: Social Sciences, Political Science Keywords: Political Socialization, Political Participation, Social Networking, Political Science Students, Islamic Azad University

Online: 20 December 2018 (13:19:22 CET)

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Preprint REVIEW | doi:10.20944/preprints201609.0052.v1

Dialectic Critical Realism: Grounded Values and Reflexivity in Social Science Research

Christopher Bagley, Alice Sawyerr, Mahmoud Abubaker

Subject: Social Sciences, Sociology Keywords: Dialectical Critical Realism; Education; Islam; Childhood Studies; Child Abuse; Work-Life-Balance; Roy Bhaskar; Priscilla Alderson; Margaret Archer

Online: 18 September 2016 (06:04:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201607.0094.v1

Tracking errors and their determinants: Evidence from Hong Kong exchange traded funds

Patrick Kuok-Kun Chu

Subject: Business, Economics And Management, Finance Keywords: Exchange traded funds, ETFs, tracking error, panel regression model, fixed effects estimation

Online: 29 July 2016 (12:39:32 CEST)

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Preprint REVIEW | doi:10.20944/preprints201904.0206.v1

Quantifying Cancer Epithelial-Mesenchymal Plasticity and Its Association with Stemness and Immune Response

Dongya Jia, Xuefei Li, Federico Bocci, Shubham Tripathi, Youyuan Deng, Mohit Kumar Jolly, José N. Onuchic, Herbert Levine

Subject: Biology And Life Sciences, Biophysics Keywords: helial-mesenchymal transition; EMT spectrum; hybrid epithelial/mesenchymal phenotypes; CTC clusters; stemness; immune suppression; EMT metrics; systems biology

Online: 18 April 2019 (08:02:27 CEST)

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Preprint REVIEW | doi:10.20944/preprints201912.0145.v1

Requirement Change Management Techniques in Software Systems

Mehreen Sirshar, Ghanwa Ejaz, Maria Mumtaz

Subject: Business, Economics And Management, Business And Management Keywords: Requirement Change Management; Methodology; Change Management Process; Software System

Online: 10 December 2019 (16:41:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints201811.0546.v4

An Overview of Convolutional Neural Network: Its Architecture and Applications

Shadman Sakib, Nazib Ahmed, Ahmed Jawad Kabir, Hridon Ahmed

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: Convolutional Neural Network (CNN), Deep learning, Architecture, Applications

Online: 14 February 2019 (10:01:31 CET)

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Preprint REVIEW | doi:10.20944/preprints202010.0179.v1

Explicit Treatment of Non Michaelis-Menten and Atypical Kinetics in Early Drug Discovery

Bharath Srinivasan

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Non Michaelis-Menten Kinetics; High-throughput screening; allostery; cooperativity; processive kinetics; distributive kinetics; single-molecule; auto-catalytic; drug discovery

Online: 8 October 2020 (13:34:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201712.0082.v1

Chromatographic and Spectroscopic Identification and Recognition of Natural Dyes, Uncommon Dyestuff Components and Mordants Found in the 16th Century Carpet

Olga Otłowska, Marek Ślebioda, Agata Kot-Wasik, Jakub Karczewski, Magdalena Śliwka-Kaszyńska

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: natural dyes; flavonoids; flavone glycosides; anthraquinones; extraction procedure; liquid chromatography mass spectrometry

Online: 13 December 2017 (17:58:00 CET)

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Working Paper ARTICLE

Biological Activity and Nanostructuration of Fe3O4-Ag/Polyethylene Nanocomposites

Phuong Nguyen-Tri

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: polyethylene; nanocomposites; silver nanoparticles; Fe3O4-Ag hybrid nanoparticles; antibacterial activity

Online: 19 March 2019 (07:54:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints201705.0078.v1

Chemical Characterization of Oils and Fats from Amazonian Fruits by ¹H NMR

Ricardo Carvalho dos Santos, Antonio Alves de Melo Filho, Edvan Alves Chagas, Jacqueline Aparecida Takahashi, Ismael Fernández Montero, Luciana Chaves Holanda, Pedro Rômulo Estevam Ribeiro, Gabriel Franco dos Santos, Ana Cristina Gonçalves Reis de Melo

Subject: Chemistry And Materials Science, Food Chemistry Keywords: Euterpe oleracea; Astrocaryum acaule; Mauritia aculeata; Mauritia flexuosa; PUFA; MUFA

Online: 9 May 2017 (05:05:45 CEST)

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