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Working Paper ARTICLE

LED Light Improved by an Optical Filter to Visible Solar-Like Light With High Color Rendering

Li-Siang Shen, Hsing-Yu Wu, Li-Jen Hsiao, Chih-Hsuan Shih, Jin-Cherng Hsu

Subject: Physical Sciences, Acoustics Keywords: LED; solar-like light; optical coating; color rendering index; D65

Online: 1 June 2021 (09:46:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201802.0050.v1

Light Trapping with Silicon Light Funnel Arrays

Ashish Prajapati, Yuval Nissay, Tamir Gabay, Gil Shalev

Subject: Engineering, Electrical And Electronic Engineering Keywords: light trapping; photovoltaics; solar cells; light-funnel arrays; nanophotonics; photon management; mode excitation

Online: 6 February 2018 (00:48:21 CET)

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Preprint ARTICLE | doi:10.20944/preprints201806.0199.v1

Synthesis of Needle-like BiVO4 with Improved Photocatalytic Activity under Visible Light Irradiation

Trinh Duy Nguyen, Seong Soo Hong

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: needle-like BiVO4, photodegradation of Rhodamine B, monoclinic-scheelite type BiVO4

Online: 12 June 2018 (15:19:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202211.0095.v1

Solar System-Like Systems with Special Reference to Relativistic Quantum Mechanics and Weak Gravitational Field

Peter Gara

Subject: Physical Sciences, Quantum Science And Technology Keywords: Solar system-like systems; Relativistic Quantum Mechanics; Weak Gravity; Proper Time Scale of the Solar System

Online: 4 November 2022 (13:42:21 CET)

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Preprint REVIEW | doi:10.20944/preprints202308.0298.v2

Absorption of Light in Vertical III-V Semiconductor Nanowires for Solar Cell and Photodetector Applications

Nicklas Anttu

Subject: Physical Sciences, Applied Physics Keywords: III-V semiconductor; nanowire; absorption; solar cell; photodetector

Online: 17 August 2023 (07:53:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202209.0279.v3

Light Speed Expanding Hubble-Hawking Universe

U.V.S. Seshavatharam, S. Lakshmanarayana

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Hubble-Hawking model; Light speed expansion; Black hole universe; Power law super gravity of baryonic mass; 200 million solar masses

Online: 13 March 2023 (10:26:05 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0583.v1

Laser Patterned Alumina Mask and Mask-less Dry Etch of Si for Light Trapping

Jovan Maksimovic, Haoran Mu, Daniel Smith, Tomas Katkus, Mantas Vaičiulis, Ramūnas Aleksiejūnas, Gediminas Seniutinas, Soon Hock Ng, Saulius Juodkazis

Subject: Chemistry And Materials Science, Nanotechnology Keywords: light trapping; Si solar cells; ablation; dry etch; Lambertian limit

Online: 30 December 2022 (10:14:28 CET)

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Preprint ARTICLE | doi:10.20944/preprints201804.0036.v1

Degradation of Methylene Blue Dye in the Presence of Visible Light Using SiO₂@α-Fe₂O₃ Nanocomposites Deposited on SnS₂ Flowers

Sridharan Balu, Kasimayan Uma, Guan-Ting Pan, Thomas C.-K. Yang, Sayee Kannan Ramaraj

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: photocatalyst; flower-like SnS2; nanocomposites; visible light; methylene blue

Online: 3 April 2018 (10:53:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.1426.v1

Demonstration of Photovoltage via Non-Uniform Light Illumination

Ayodeji Kuti, Jordan Graham, Sam-Shajing Sun

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Non-uniform illumination; photovoltage; optoelectronic; p-type photo doping; P3HT/PCBM; energy conversion; solar cells; image sensor

Online: 26 February 2024 (12:11:29 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0499.v1

Visible – Light Driven Systems: Effect of the Parameters Affecting Hydrogen Production through Photoreforming of Organics in Presence of Cu₂O/TiO₂ Nanocomposite Photocatalyst

Marica Muscetta, Laura Clarizia, Marco Race, Roberto Andreozzi, Raffaele Marotta, Ilaria Di Somma

Subject: Engineering, Chemical Engineering Keywords: Green hydrogen; Photoreforming; ball milling; cuprous oxide; solar photocatalysis

Online: 27 January 2023 (09:53:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints202205.0224.v1

SIG-1451, A Novel, Non-Steroidal Anti-Inflammatory Compound, Attenuates Light-Induced Photoreceptor Degeneration by Inhibiting Microglial Activation

Yuki Kikuchi, Eriko Sugano, Shiori Yuki, Kitako Tabata, Yuka Endo, Yuya Takita, Reina Onoguchi, Taku Ozaki, Tomokazu Fukuda, Yoshihiro Takai, Takahiro Kurose, Koichi Tanaka, Yoichi Honma, Eduardo Perez, Maxwell Stock, Jose Fernandez, Masanori Tamura, Michael Voronkov, Jeffry B Stock, Hiroshi Tomita

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: age-related macular degeneration; light-induced photoreceptor degeneration; anti-inflammatory drug; toll-like receptor 4

Online: 17 May 2022 (08:03:11 CEST)

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Preprint ESSAY | doi:10.20944/preprints202002.0298.v3

Father Verspieren and Mali Aqua Viva: Lessons Learned from Fighting Drought and Poverty with Photovoltaic Solar Energy in Africa

Mario Pagliaro

Subject: Engineering, Energy And Fuel Technology Keywords: photovoltaics; solar energy; Father Verspieren; solar energy in Africa; rainwater harvesting; solar pump

Online: 3 April 2020 (03:38:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.0195.v1

Nonlinear Scattering of the 248-nm Wavelength Light in High-Pressure SF6 and CH4 Gases for a Temporal Compression of 20-Ns KrF Laser Pulse

Vladimir D. Zvorykin, Gocha G. Metreveli, Igor V. Smetanin, Alexey V. Shutov, Nikolay N. Ustinovskii, Polad V. Veliev

Subject: Physical Sciences, Optics And Photonics Keywords: KrF laser pulse compression; stimulated Brillouin and Raman scattering in SF6 and CH4; theory of soliton-like pulse compression.

Online: 4 December 2023 (15:14:24 CET)

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Preprint ARTICLE | doi:10.20944/preprints201612.0070.v2

Models for Calculating Monthly Average Solar Radiation from Air Temperature in Swaziland

Mgidi D. Dlamini, Alakaparampil J. Varkey, Simiso Mkhonta

Subject: Environmental And Earth Sciences, Environmental Science Keywords: solar energy; solar radiation; climatic data; solar radiation estimation

Online: 6 November 2017 (12:02:45 CET)

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Preprint ARTICLE | doi:10.20944/preprints201905.0385.v1

Characterization of Photophysical Properties of D−π−A−π−D Type Diketopyrrolopyrrole Based Molecules for Organic Light-Emitting diodes and Organic Solar Cells

Ruifa Jin, Xiaofei Zhang, Wenmin Xiao

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: diketopyrrolopyrrole (DPP)-based molecules; photophysical properties; Charge transporting property; organic light-emitting diodes (OLEDs); organic solar cells (OSCs).

Online: 31 May 2019 (11:05:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.0499.v1

Detection of Solar Neutrons and Solar Neutron Decay Protons

Yasushi Muraki, Tatsumi Koi, Yutaka Matsubara, Satoshi Masuda, Pedro Miranda, Shoko Miyake, Tsuguya Naito, Ernesto Ortiz Fragoso, Akitoshi Oshima, Takashi Sako, Shoichi Shibata, Hisanori Takamaru, Munetoshi Tokumaru, Jose Franco Valdes-Galicia, Kyoko Watanabe

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: solar flare; impulsive flare; gradual flare; solar comic-rays; solar energetic particles; particle acceleration; solar neutrons

Online: 8 November 2023 (06:44:03 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.1382.v1

Analysis of Losses Associated with Series Resistance (Rs) in Simple-Structured c-Si Solar Cells

Manuel J Heredia-Rios, Luis Hernandez-Martinez, Monico Linares-Aranda, Javier Flores-Méndez, Mario Moreno-Moreno

Subject: Engineering, Electrical And Electronic Engineering Keywords: photovoltaic; solar energy; solar cells; series resistance

Online: 18 January 2024 (09:10:55 CET)

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Preprint ARTICLE | doi:10.20944/preprints202306.0514.v1

Performance Improvement of a Solar Assisted Absorption Cooling System Integrated with Latent Heat Thermal Energy Storage

Lana Migla, Raimonds Bogdanovics, Kristina Lebedeva

Subject: Engineering, Other Keywords: LHTES; PCM; solar energy; solar cooling system

Online: 7 June 2023 (08:29:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.0922.v1

Simulation and Experimental Results for Energy Production Using Hybrid Photovoltaic Thermal Technology

Roxana Margareta Grigore, Sorin Gabriel Vernica, Sorin Eugen Popa, Ioan Viorel Banu

Subject: Engineering, Energy And Fuel Technology Keywords: energy efficiency; solar energy; solar irradiance; solar photovoltaic thermal (PV/T) systems; temperature

Online: 18 February 2024 (11:52:48 CET)

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Preprint ARTICLE | doi:10.20944/preprints202208.0085.v2

The Inner and Backside Solar Flares

Ramy Mawad

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: The Sun; Solar Flare; Solar Core; Solar Interior layers; Radiative Zone; Convection Zone

Online: 5 August 2022 (14:59:45 CEST)

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Preprint REVIEW | doi:10.20944/preprints202310.1913.v3

Design of Photovoltaic System for Green Manufacturing by using Statistical Design of Experiments

Debo Brata Paul Argha, Md Ashik Ahmed

Subject: Engineering, Civil Engineering Keywords: Solar PV system; Regression Model; DOE; Solar energy; Fossil fuels

Online: 9 November 2023 (10:58:47 CET)

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Preprint ARTICLE | doi:10.20944/preprints202207.0192.v1

Film Properties Using Metal Salts Washing for Perovskite Solar Cells

Ankit Stephen Thomas

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: Perovskites; Solar cells; Film formation; Solar energy; Doping

Online: 13 July 2022 (08:40:00 CEST)

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Preprint REVIEW | doi:10.20944/preprints201811.0625.v1

Encapsulation of Organic and Perovskite Solar Cells: A Comprehensive Review

Ashraf Uddin, Mushfika Baishakhi Upama, Haimang Yi, Leiping Duan

Subject: Physical Sciences, Chemical Physics Keywords: organic solar cells; perovskite solar cells; encapsulation; stability

Online: 30 November 2018 (09:38:24 CET)

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Preprint ARTICLE | doi:10.20944/preprints202008.0674.v1

Design and Programming of a Micro-Controller-Based Solar Tracking System

Saman Sarkawt Jaafar, Farhad Muhsin Mahmood

Subject: Engineering, Energy And Fuel Technology Keywords: Solar cell energy; Single Axial Solar Tracking System; Solar cell efficiency; Arduino Uno Board

Online: 30 August 2020 (15:34:39 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1034.v1

Developing Models to Predict BRAFV600E and RAS Mutational Status in Papillary Thyroid Carcinoma

Agnes Stephanie Harahap, Imam Subekti, Sonar Soni Panigoro, Asmarinah Asmarinah, Lisnawati Lisnawati, Retno Asti Werdhani, Hasrayati Agustina, Dina Khoirunnisa, Mutiah Mutmainnah, Fajar Lamhot Gultom, Abdillah Hasbi Assadyk, Maria Francisca Ham

Subject: Medicine And Pharmacology, Pathology And Pathobiology Keywords: papillary thyroid carcinoma; BRAF-like; RAS-like; BRAFV600E; RAS mutation; prediction model

Online: 15 September 2023 (10:54:29 CEST)

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Preprint REVIEW | doi:10.20944/preprints202311.0761.v1

A Review of Photovoltaic Failure and Degradation Mechanisms

Hussain Al Mahdi, Paul G Leahy, Mohammad Alghoul, Alan P. Morrison

Subject: Engineering, Electrical And Electronic Engineering Keywords: photovoltaics; reliability; degradation; failure mechanism; solar cells; solar modules

Online: 13 November 2023 (10:16:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints201901.0320.v1

Expression of Toll-Like Receptors (TLR2 and TLR4) in the Eyes of Mice Intranasally Infected with Acanthamoeba sp.

Karolina Kot, Danuta Kosik-Bogacka, Natalia Łanocha-Arendarczyk, Agnieszka Wojtkowiak-Giera, Agnieszka Kolasa-Wołosiuk

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: Acanthamoeba sp.; eyes; toll-like receptor 2 (TLR2); toll-like receptor 4 (TLR4)

Online: 31 January 2019 (07:00:38 CET)

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Preprint REVIEW | doi:10.20944/preprints202112.0156.v1

De Rerum (incerta) Natura. A Tentative Approach to the Concept of Quantum-like

ENRICO FACCO, Fabio Fracas

Subject: Physical Sciences, Quantum Science And Technology Keywords: QUantum physics; Quantum-like; Epistemology

Online: 9 December 2021 (14:44:24 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.0486.v1

Optical Design of a Miniaturised Solar Magnetograph for Space Applications

Ariadna Calcines, Lucie M. Green, Alan Smith, David M. Long

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: solar magnetograph; space weather; space sciences; solar instrumentation; miniaturised optics

Online: 9 October 2023 (11:10:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.0270.v2

An Improved Cheetah Optimizer for Accurate and Reliable Estimation of Unknown Parameters in Photovoltaic Cell/Module Models

Zulfiqar Ali Memon, Mohammad Amin Akbari, Mohsen Zare

Subject: Engineering, Electrical And Electronic Engineering Keywords: Solar energy; metaheuristics; optimization; energy management; solar cell; photovoltaic modeling

Online: 6 July 2023 (09:31:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.0488.v1

The Solar Energy Potential of Greece for Flat-Plate Solar Panels Fixed on Dual-Axis Systems

Harry D. Kambezidis, Konstantinos Mimidis, Kosmas A. Kavadias

Subject: Environmental And Earth Sciences, Environmental Science Keywords: solar energy potential; maximum energy; inclined surfaces; solar tracking; Greece

Online: 8 May 2023 (09:08:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202210.0244.v1

A Comprehensive Empirical Analysis on Performance Assessment of Different Solar Cookers

Ibadullah Safdar, Muhammad Zahid, Saeed Mian Qaisar, Asad Waqar, Elsayed Tag Eldin, Tehseen Ilahi, Tausif Zahid, Naif Alsharabi

Subject: Engineering, Electrical And Electronic Engineering Keywords: Cooking power; Solar energy; Solar radiations; Sun tracking.; Emperical Analysis

Online: 18 October 2022 (03:21:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201811.0518.v1

A GIS-Based Method for Identification of Wide area Rooftop Suitability for Minimum Size PV Systems Using LiDAR Data and Photogrammetry

Diane Palmer, Elena Koubli, Ian Cole, Ralph Gottschalg, Thomas Betts

Subject: Engineering, Energy And Fuel Technology Keywords: solar; LiDAR; rooftop photovoltaics; building characteristics; wide-area solar yield

Online: 21 November 2018 (06:59:32 CET)

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Preprint ARTICLE | doi:10.20944/preprints202205.0085.v1

Calorimetric Testing of Solar Thermal Absorbers for High Vacuum Flat Panels

Carmine D’Alessandro, Davide De Maio, Antonio Caldarelli, Marilena Musto, Francesco Di Giamberardino, Matteo Monti, Teresa Mundo, Emiliano Di Gennaro, Roberto Russo, Vittorio G. Palmieri

Subject: Physical Sciences, Applied Physics Keywords: Selective Solar Absorber; Solar Absorptance; Thermal Emittance; Evacuated Flat Panel; Calorimeter; High Vacuum Flat Panel; Solar Simulator

Online: 7 May 2022 (02:52:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.0208.v1

Periodic Behavior of Selected Solar, Geomagnetic and Cosmic Activity Indices during Solar Cycle 24

Ali Kilcik, Atila Ozguc, Jean-Pierre Rozelot

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Solar cycles; Solar flares; Geomagnetic activity indices; Cosmic rays; Period analysis

Online: 3 November 2023 (11:23:50 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0486.v1

MHD Simulation in the Solar Corona to Obtain Conditions for the Acceleration of Cosmic Rays during Solar Flares

Alexander Podgorny, Igor Podgorny, Alexei Borisenko

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: solar flare; solar cosmic rays; current sheet; magnetohydrodynamic simulation; active region

Online: 28 February 2023 (02:23:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints202208.0046.v2

Solar Activity Cycles Recur Epidemic and Pandemic Viruses: Space Weather Alerts

Ramy Mawad, Hanafy M. Madbouly, Ehab M. B. Mahdy

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Space weather; Solar terrestrial connection; Climate change; Solar cycle; Environment; Epidemiology

Online: 12 January 2023 (02:36:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202001.0072.v1

Thermal Efficiency of a Concentrating Solar Collector Under High-Vacuum

Davide De Maio, Carmine D' Alessandro, Daniela De Luca, Marilena Musto, Emilano Di Gennaro, Giuseppe Rotondo, Roberto Russo

Subject: Engineering, Energy And Fuel Technology Keywords: solar energy; Compound Parabolic Concentrators (CPC); high vacuum insulated solar collectors

Online: 9 January 2020 (05:31:26 CET)

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Preprint ARTICLE | doi:10.20944/preprints201907.0101.v1

Design and Analysis of Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System

Daniel Leal-Chavez, Ricardo Beltran-Chacon, Paola Cardenas-Terrazas, Saul Islas, Nicolas Velazquez

Subject: Engineering, Energy And Fuel Technology Keywords: solar domestic cogeneration; Organic Rankine Cycle; acetone; evacuated tube solar collector

Online: 8 July 2019 (04:15:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0091.v1

Solar Power Interpolation and Analysis Using Spatial Autocorrelation

Syed Muhammad Ahsan Gillani

Subject: Engineering, Energy And Fuel Technology Keywords: solar power interpolation; solar power attenuation; spatial autocorrelation; semi-variograms; geosatistics

Online: 7 December 2018 (03:55:55 CET)

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Preprint ARTICLE | doi:10.20944/preprints201805.0062.v1

A Study on Photostability of Amphetamines and Ketamine in Hair Irradiated under Artificial Sunlight

Giorgia Miolo, Marianna Tucci, Luca Menilli, Giulia Stocchero, Susanna Vogliardi, Salvatore Scrivano, Massimo Montisci, Donata Favretto

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: hair; solar light; photodegradation; amphetamines; MDMA; ketamine; photoproduct; photostability; solar simulator

Online: 3 May 2018 (09:11:57 CEST)

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Background: Drug incorporated in hair are exposed to the environment and to cosmetic and chemical treatments, with possible decrease of their content. Knowledge concerning the effect of sun light on drug content in hair can be helpful to the forensic toxicologist, in particular when investigating on drug concentrations above or below pre-determined cut-offs. Materials and Methods: Twenty authentic positive hair samples were selected that had previously tested positive for amphetamines and/or ketamine. Washed hairs were divided into two identical strands: the former was exposed at 765 W/m² (310–800 nm spectrum of irradiance) for 48 hours in a solar simulator, the latter was kept in the dark. Hair samples were extracted and analyzed by LC-HRMS detection. The percent photodegradation was calculated for each analyte (amphetamine, methamphetamine, methylendioxyamphetamine methylendioxymethamphetamine, ketamine, norketamine). In parallel, photodegradation processes of standard molecules dissolved in aqueous and organic solutions were studied. Results: In 20 hair samples positive for the targeted analytes, exposure to artificial sun light induced an appreciable decrease of drug concentrations. The concentration ranges in the non-irradiated hair samples were 0.01–24 ng/mg; 65% of samples exhibited a decrease in post-irradiation samples, with reduction from 3% to 100%. When more drugs were present in the same hair sample (e.g, MDMA and ketamine) the degradation yields were compound dependent. A degradation product induced by irradiation of ketamine in aqueous and methanol solutions was identified; it was also found to be present in a true positive hair sample after irradiation. Conclusions: Ketamine, amphetamines and their metabolites incorporated in hair of drug users undergo degradation when irradiated by artificial sunlight. Only for ketamine a photoproduct was identified in irradiated standard solutions and in true positive irradiated hair. When decisional cut-offs are applied to hair analysis, photodegradation must be taken into account since sunlight may produce false negative results. Moreover, new markers could be investigated as evidence of illicit drug use.

Preprint REVIEW | doi:10.20944/preprints202403.0300.v2

A review on the present and future of solar power in Africa

Ahmed Rachid, Nouhaila NAJMI

Subject: Physical Sciences, Other Keywords: Solar energy; Development; Africa; Solar farms; Mini-grids; Off-grid; Solar houses; Irrigation; Legislation; Business models; NGOs; International companies

Online: 14 March 2024 (09:34:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints202007.0695.v1

Performance Study of Integrated Solar-Water Supply System for Isolated Agricultural Areas in Thailand: Two Case-Study Villages of The Royal Initiative Project

Thanongsak Imjai, Kamon Thinsurat, Pakorn Ditthakit, Warit Wipulanusat, Monthian Setkit, Reyes Garcia

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: water resource management; solar-water; solar-water supply system; SWSS; decision support; solar pumping; climate change; royal initiative project

Online: 29 July 2020 (11:40:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.0951.v1

Looking for the Optimal Shape of a Photovoltaic Panel

Eduardo Diedrich

Subject: Engineering, Energy And Fuel Technology Keywords: Optima Shape; Solar Panel

Online: 16 October 2023 (09:37:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202105.0488.v9

The Solar System: Nature and Mechanics

Mario Ljubičić

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: solar system; complete relativity; nature; mechanics

Online: 19 July 2023 (09:29:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201801.0106.v2

The Discovery of Synthetic Proteolytic Peptide

Rina Nakamura, Motomi Konishi, Masanari Taniguchi, Yusuke Hatakawa, Toshifumi Akizawa

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: catalytide; serine protease-like peptide; Tob1

Online: 17 January 2018 (07:27:30 CET)

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Preprint REVIEW | doi:10.20944/preprints202401.2160.v1

Advancements in Photovoltaic Cell Materials: Silicon, Organic, and Perovskite Solar Cells

Abniel Machín, Francisco Márquez

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: photovoltaic cells; silicon-based solar cells; organic-based cells; perovskite solar cells

Online: 31 January 2024 (05:53:39 CET)

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Preprint REVIEW | doi:10.20944/preprints202309.2044.v1

A Review of Photocatalytic Water Splitting for Hydrogen Production Using Tandem Solar Cell

Nur Ain Atiqah Mohd Amin, Hayyiratul Fatimah Mohd Zaid

Subject: Engineering, Chemical Engineering Keywords: photocatalytic water splitting; photoelectrochemical cell; dye solar cell; tandem solar cell; hydrogen

Online: 29 September 2023 (08:05:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0706.v1

Solar Business in an Oil-Rich Country? A Socio-technical Investigation of Solar PV Businesses in Iran

Leila Aghlimoghadam

Subject: Environmental And Earth Sciences, Sustainable Science And Technology Keywords: solar business; solar PV; social acceptance; energy transition; oil-rich country; Iran

Online: 21 April 2023 (09:49:31 CEST)

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Taking a socio-technical perspective, I focus on solar businesses (niche market actors) in Iran. As one of the key stakeholder groups whose business prosperity is tied to the development of solar PV, they play a crucial role in accelerating the energy transition. Given the incumbent fossil-based electricity sector in Iran and the least enabling policies, I am first interested to find (i) the main drivers and barriers of solar businesses; and (ii) the roles these solar businesses play in bringing solar PV deployment forward in Iran. I collected the data via 20 semi-structured interviews with solar businesses in Golestan, Guilan, Tehran, Khorasan Razavi, and Eastern Azerbaijan Provinces in Iran. Taking an inductive approach, I considered sustainability transition and social acceptance theories as sensitising concepts to investigate common and specific points of solar business acceptance in Iran. I find ecological awareness, belief in intergenerational justice, and willingness to innovate, as the main intrinsic drivers and socioeconomic opportunity and tackling the energy imbalance as extrinsic drivers; while the lack of a common vision with the energy governors, and the low knowledge of solar PV among the customers, escalating prices, and challenges to accessing good quality solar equipment are the most prior obstacles. Moreover, I understand educating people, driving the innovative deployment of solar PV, and facilitating the diffusion of it, as the major roles of solar businesses in Iran. I find that the sustainability transition literature overlooked the key role of solar businesses specially in fossil-based and developing economies. My findings suggest that the positive intrinsic mechanisms among the solar businesses, in combination with better-enabling policy frameworks and external factors, like lifting the sanctions and joining the global energy market, climate change mitigation commitments and standards, can help solar businesspeople to lead and accelerate solar PV development in Iran.

Preprint ARTICLE | doi:10.20944/preprints202404.0138.v1

Design and Optimization of Electrical Parameters of Perovskites-based Thin Film Solar Cell

Muhammad Muneeb Khan, Sadiq Ahmad, Ali Hassan, And Furqan Shaukat

Subject: Engineering, Energy And Fuel Technology Keywords: Electrical Parameters; Perovskite; Optimization; Renewable Power; SCAPS-1D; PVSyst; Solar Module; Solar Cell

Online: 2 April 2024 (09:25:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.1854.v1

SISA: The First Extreme-Ultraviolet Solar Integral Field Spectrograph Using Slicers

Ariadna Calcines Rosario, Hamish Andrew Sinclair Reid, Sarah Matthews, Frédéric Auchère, Alain Jody Corso, Giulio Del Zanna, Jaroslav Dudik, Samuel Gissot, Laura Hayes, Graham Stewart Kerr, Christian Kintziger, Sophie Musset, Vanessa Polito, Daniel F. Ryan, David Orozco Suárez

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: EUV Spectroscopy; solar IFS; EUV slicers; image slicers; solar space mission; particle acceleration

Online: 29 November 2023 (10:56:44 CET)

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Preprint ARTICLE | doi:10.20944/preprints202111.0572.v1

Synthesis and Characterization of Al-doped NiO Nanostructured Thin Films Elaborated by Solar Spray Pyrolysis Technique, for Photovoltaic Cells

Abdelbaki NID, Lilia ZIGHED, Yacine AOUN, Bedreddine MAAOUI

Subject: Physical Sciences, Applied Physics Keywords: Nickel oxide; Thin films; Al doping ratio; Solar spray pyrolysis; Solar heater; Furnace.

Online: 30 November 2021 (13:29:11 CET)

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Preprint ARTICLE | doi:10.20944/preprints201902.0074.v1

Solar Green Roofs: A Unified Outlook Twenty Years On

Rosaria Ciriminna, Francesco Meneguzzo, Mario Pecoraino, Mario Pagliaro

Subject: Biology And Life Sciences, Ecology, Evolution, Behavior And Systematics Keywords: solar energy; solar green roof; energy transition; biosolar roof; green roof; air pollution

Online: 7 February 2019 (13:02:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints202308.1629.v1

Determining the Effect of Pancreatic-Like Enzymes (PLEM) Added to the Feed of Pregnant Sows on Fetal Size of Piglets to Minimize IUGR Syndrome Caused by Fetal Malnutrition

Marek Pieszka, Paulina Szczurek, Sywia Orczewska-Dudek, Marian Kamyczek, Magdalena Pieszka

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: piglets rearing; pancreatic-like enzymes (PLEM); IUGR

Online: 24 August 2023 (03:21:30 CEST)

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The present study aimed to develop a feeding strategy for pregnant sows which involved the prenatal administration of a mixture of pancreatic-like fungal enzymes, such as lipase, amylase, and protease, at (1) 1–115 days of gestation (group D1) and (2) 80–115 days of gestation (group D2) and to carry out a comparison with groups of sows that were not receiving such supplementation (negative control [NC] and positive control [PC]). It was found that the administration of the enzyme supplement resulted in a significant shortening of gestation (P ≤ 0.01). The pancreatic enzymes administered to sows had a significant effect on the number of liveborn piglets and weaned piglets, which was higher compared to the control groups that did not receive supplementation respectively: D1-12.1±1.1 and 11.12±1.1; D2- 12.8±1.3 and 11.75±0.07 vs. control groups KN-10.7±1.0 and 9.62±0,95 and KP 10.9±1.2 and 10.15±1.0 (P<0.006). Significant changes in piglet growth were observed after weaning up to 70 days of age. During this period, the most favorable growth parameters were found in groups D2 (420±91g) and PC (407±103g), in which piglets were given a mixture of pancreatic enzymes (lipase, amylase, and protease) at 3 weeks of age, and significantly higher weight gain and feed intake were observed compared to groups NC (378±114g) and D1 (381±96g) (P ≤ 0.007). In contrast, insulin levels were significantly lower in groups D1 and D2, respectively 6,8 IU/ml and 6,7 IU/ml compared to groups NC (14,6 IU/ml) and PC (16,6 IU/ml) ( (P ≤ 0.01). Piglets in group D2 had a significantly better feed conversion ratio (FCR) 1.604±0.10 compared to the other dietary groups: KN– 1.986±0.14; KP– 1.704±0.11; D1 – 1.932±0.15 (P ≤ 0.03). Histological imaging confirmed significantly thicker intestinal epithelium and intestinal mesenteron in animals from groups D2 and PC (P ≤ 0.03). Animals from the groups KP, D1 and D2 receiving enzymes showed a highly significant increase in the surface area of pancreatic follicles and pancreatic surface area compared to the group without KN supplementation (P<0.01). Furthermore, significantly higher activity of the brush border enzyme lactase was observed in groups D1; D2 and PC compared, respectively 32.90±3.99; 30.00±6.83 and 29.60±29.60 to group NC – 21.80± 3.27 (P ≤ 0.01).

Preprint ARTICLE | doi:10.20944/preprints202307.1401.v1

Broadband Enhancement in the Spectral Response of Photovoltaic Modules with Flower-like Silver Particles

Yan Wang, Feng Zhang, Xinmin Fan, Yabin Lu, Chunyan Wang, Xiaodong Huang, Lujun Zhang

Subject: Physical Sciences, Optics And Photonics Keywords: broadband enhancement; photovoltaic; flower-like silver particles

Online: 20 July 2023 (10:12:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202010.0470.v1

Multiple Introductions and Predominance of Rotavirus Group A Genotype G3P[8] in Coastal Kenya in 2018, 4 Years After Nationwide Vaccine Introduction

Mike J. Mwanga, Jennifer R. Verani, Richard Omore, Jacqueline E. Tate, Umesh D. Parashar, Nickson Murunga, Elijah Gicheru, Robert F. Breiman, D. James Nokes, Charles N. Agoti

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Gastroenteritis; rotavirus; G3[P8]; phylogenetics; equine-like

Online: 22 October 2020 (22:51:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201807.0330.v1

Phylogenetic Analysis of Globin Like Superfamily at Molecular Level

Himani Malhotra, Harmanpreet Kaur Sanghu

Subject: Biology And Life Sciences, Neuroscience And Neurology Keywords: Globin-like superfamily, Phylogenetic analysis, Taxonomic tree

Online: 18 July 2018 (11:11:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202204.0187.v1

Gravity-Assist Might be a Solution to Save Earth from Global Warming

Sohrab Rahvar

Subject: Environmental And Earth Sciences, Space And Planetary Science Keywords: Dynamics; Solar System; Global Warming

Online: 20 April 2022 (08:53:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0162.v1

A Publicly Available Cost Simulation of Sustainable Construction Options for Residential Houses

Lawrence Fulton, Bradley Beauvauis, Matthew Brooks, Scott Kruse, Kim Lee

Subject: Engineering, Architecture, Building And Construction Keywords: construction; rainwater harvesting; simulation; solar

Online: 10 March 2020 (10:26:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints201810.0452.v1

Solar Neutrinos Spectroscopy with Borexino Phase-II

Lino Miramonti, M. Agostini, K. Altenmueller, S. Appel, V. Atroshchenko, Z. Bagdasarian, D. Basilico, G. Bellini, J. Benziger, D. Bick, I. Bolognino, G. Bonfini, D. Bravo, B. Caccianiga, F. Calaprice, A. Caminata, S. Caprioli, M. Carlini, P. Cavalcante, F. Cavanna, A. Chepurnov, K. Choi, L. Collica, S. Davini, A. Derbin, X.F. Ding, A. Di Ludovico, L. Di Noto, I. Drachnev, K. Fomenko, A. Formozov, D. Franco, F. Gabriele, C. Galbiati, M. Gschwender, C. Ghiano, M. Giammarchi, A. Goretti, M. Gromov, D. Guffanti, C. Hagner, T. Houdy, E. Hungerford, Aldo Ianni, Andrea Ianni, A. Jany, D. Jeschke, V. Kobychev, D. Korablev, G. Korga, T. Lachenmaier, M. Laubenstein, E. Litvinovich, F. Lombardi, P. Lombardi, L. Ludhova, G. Lukyanchenko, L. Lukyanchenko, I. Machulin, G. Manuzio, S. Marcocci, J. Maricic, J. Martyn, E. Meroni, M. Meyer, M. Misiaszek, L. Papp, O. Penek, L. Pietrofaccia, N. Pilipenko, A. Pocar, A. Porcelli, G. Raikov, G. Ranucci, A. Razeto, A. Re, M. Redchuk, A. Romani, N. Rossi, S. Rottenanger, S. Schönert, D. Semenov, M. Skorokhvatov, O. Smirnov, A. Sotnikov, L.F.F. Stokes, Y. Suvorov, R. Tartaglia, G. Testera, J. Thurn, M. Toropova, E. Unzhakov, A. Vishneva, R.B. Vogelaar, F. von Feilitzsch, S. Weinz, M. Wojcik, M. Wurm, Z. Yokley, O. Zaimidoroga, S. Zavatarelli, K. Zuber, G. Zuzel

Subject: Physical Sciences, Particle And Field Physics Keywords: solar neutrinos; neutrino oscillation; Borexino

Online: 19 October 2018 (11:49:06 CEST)

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Preprint REVIEW | doi:10.20944/preprints202307.0803.v1

The Trend of Solar Energy Utilization and Its Offshore Assessment in Nigeria

Wasiu Olalekan Idris, Mohd Zamri Ibrahim, Aliashim Alibani

Subject: Engineering, Energy And Fuel Technology Keywords: solar PV system; renewable energy system; solar radiation; net present value; cost of electricity

Online: 12 July 2023 (11:44:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202201.0397.v1

Effect Of The Aerosol Vertical Distribution On The Modelling Of Solar Radiation

Ilias Fountoulakis, Kyriakoula Papachristopoulou, Emmanouil Proestakis, Vassilis Amiridis, Charalampos Kontoes, Stelios Kazadzis

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: aerosol profile; aerosol extinction coefficient; aerosol radiative effects; spectral solar radiation; solar radiation profile

Online: 26 January 2022 (12:52:00 CET)

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Preprint ARTICLE | doi:10.20944/preprints202008.0162.v2

Efficiency of Selective Solar Absorber in High Vacuum Flat Solar Thermal Panels: The Role of Emissivity

Davide De Maio, Carmine D'Alessandro, Antonio Caldarelli, Marilena Musto, Daniela De Luca, Emiliano Di Gennaro, Roberto Russo

Subject: Engineering, Energy And Fuel Technology Keywords: thermal emittance; conversion efficiency; selective solar absorber; thermal energy; evacuated flat panel; solar energy

Online: 20 October 2020 (12:18:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201804.0318.v2

Techno-Economic Feasibility of Hybrid Solar Photovoltaic and Battery Energy Storage Power System for a Soshanguve Mobile Cellular Base Station in South Africa

Banjo Ayoade Aderemi, SP Daniel Chowdhury, Thomas O. Olwal, Adnan M. Abu-Mahfouz

Subject: Engineering, Electrical And Electronic Engineering Keywords: Solar PV, Green Energy, Hybrid Power Source, Mobile Cellular Base Station, OPEX, Solar Irradiance

Online: 25 July 2018 (14:30:45 CEST)

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Over the years, sustainability, impact on the environment, as well as the operation expenditure have been a major concern to the deployment of mobile cellular base stations worldwide. This is because the mobile cellular base stations are known to consume a high percentage of power within the mobile cellular network. Such energy consumption contributes to the emission of Greenhouse Gases (GHG) through the use of conventional diesel generating a set. As a result, the mobile cellular operators are faced with the dilemma of minimising the power consumption, GHG emission, and the operation cost, while improving the Quality of Service of the networks. In attempting to find a solution, this study presents the feasibility and simulation of a solar photovoltaic (PV) with battery hybrid power system (HPS) as a predominant source of power for a specific mobile cellular base station site situated in Soshanguve area of the city of Pretoria, South Africa. It also presents the technical development, showed the environmental advantage and cost benefits of using a solar PV-battery HPS to power a base station site of a 24 hrs daily load of 241.10 kWh/d and the peak load of 20.31 kW as compared to using the HPS of solar PV-diesel generating set-battery. The solar resource pattern for the city of Pretoria was collected from The National Aeronautics and Space Administration and modelled statistically. Thus, the statistical modelling done using solar radiation resource exposure characteristic patterns of Pretoria, South Africa, revealed an average annual daily solar radiation of 5.4645 Wh/m2/d and 0.605 clearness index. The simulation and the design were done using the Hybrid Optimization Model for Electric Renewables and Matlab/Simulink software. The simulation finding shows that the HPS of solar PV-battery combination has about 59.62 % saving on Net Present Cost, Levelized Cost of Energy, and 80.87% saving on Operating cost as against conventional BS powered with Gen Set-Battery.

Preprint ARTICLE | doi:10.20944/preprints202310.1520.v1

Formulation of an Efficiency Model Valid for High Vacuum Flat Plate Collectors

Eliana Gaudino, Antonio Caldarelli, Roberto Russo, Marilena Musto

Subject: Engineering, Energy And Fuel Technology Keywords: solar energy; High Vacuum Flat Plate Collectors; HVFP; Thermal efficiency model; Solar collector performance evaluation

Online: 24 October 2023 (13:05:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202209.0174.v1

Open-source Photovoltaic - Electrical Vehicle Carport Designs

Nicholas Vandewetering, Koami Soulemane Hayibo, Joshua M. Pearce

Subject: Engineering, Civil Engineering Keywords: open-source; photovoltaic; mechanical design; electric vehicle; solar energy; solar carport; electric vehicle charging station

Online: 13 September 2022 (10:41:43 CEST)

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Preprint CONCEPT PAPER | doi:10.20944/preprints201810.0700.v1

Mixed-State Ionic Beams: An Effective Tool for Collision Dynamics Investigations

Emmanouil P. Benis, Ioannis Madesis, Angelos Laoutaris, Stefanos Nanos, Theo J. M. Zouros

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: zero-degree Auger projectile spectroscopy; mixed-state beams; metastable states; He-like states; Li-like states; Be-like states; cascade feeding; electron transfer excitation; electron excitation; electron transfer; hollow states; SIMION

Online: 30 October 2018 (03:53:32 CET)

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Preprint REVIEW | doi:10.20944/preprints202404.0840.v1

Tailored Viral-Like Particles as Drivers of Medical Breakthroughs

Rafael Travassos, Sofia A. Martins, Ana Fernandes, João D. G. Correia, Rita Melo

Subject: Chemistry And Materials Science, Nanotechnology Keywords: nanoparticles; virus-like particles; surface functionalization; biomedical applications

Online: 12 April 2024 (10:03:49 CEST)

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Preprint REVIEW | doi:10.20944/preprints202402.0083.v1

Hedgehog on the Move: Glypican-Regulated Transport and Gradient Formation in Drosophila

Carlos Jiménez-Jiménez, Kay Grobe, Isabel Guerrero

Subject: Biology And Life Sciences, Cell And Developmental Biology Keywords: glypicans; heparan sulfate proteoglycans; Dally; Dally-Like; Hedgehog.

Online: 1 February 2024 (15:28:50 CET)

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Preprint ARTICLE | doi:10.20944/preprints202308.2187.v2

Krüppel-like Factors Hypertrophy Modulation Following Isoproterenol-Induced Myocardial Damage

Michelle Giovanna Santoyo-Suarez, Juan Andres Garcia-Loredo, Jimena D. Mares-Montemayor, Lourdes Garza-Ocañas, Diego F. Benitez-Chao, Adolfo Soto-Dominguez, Ana E. Estrada Rodriguez, Oscar Rodriguez-Nuñez, Alberto Camacho-Morales, Patricio Adrián Zapata-Morín, Elsa N. Garza-Treviño, Juan Luis Delgado-Gallegos, Gerardo R. Padilla-Rivas, Jose Francisco Islas

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Krüppel-like factors; myocardial damage; cardiovascular diseases; hypertrophy.

Online: 13 November 2023 (10:02:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.0030.v1

Effectiveness of Oral Versus Injectable Semaglutide in Adults with Type 2 Diabetes: Results from a Retrospective Observational Study in Croatia

Sanja Klobučar, Andrej Belančić, Iva Bukša, Nikolina Morić, Dario Rahelić

Subject: Medicine And Pharmacology, Endocrinology And Metabolism Keywords: glucagon-like peptide-1; semaglutide; type 2 diabetes

Online: 1 September 2023 (07:49:49 CEST)

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Background: The number of people with type 2 diabetes is increasing daily, and therefore effective therapy is needed to successfully regulate glycemia and reduce the risk of associated complications. Recently, an oral formulation of the glucagon-like peptide-1 receptor agonist (GLP-1 RA) semaglutide has become available. Therefore, the aim of our study was to compare the effectiveness of the new oral formulation and the existing injectable formulation of semaglutide in terms of glycemic and body weight control in a real-world setting. Patients and methods: This was a single-center retrospective observational study conducted at the Rijeka Clinical Hospital Centre. A total of 106 patients with inadequately controlled type 2 diabetes (HbA1 ≥ 7%) on different oral or basal insulin supported oral therapy were recruited from the diabetes outpatient clinic, and data from electronic medical records were retrospectively collected and analyzed from May 2021 to November 2022. All subjects were GLP-1 RA naive and consequently prescribed 0.5 or 1.0 mg once weekly injectable semaglutide (IS) or 7 mg or 14 mg once daily oral semaglutide (OS) for at least 6 months. Glycated hemoglo-bin (HbA1c), body weight, and body mass index (BMI) were assessed prior to semaglutide administration and after a 6-month follow-up period. The primary endpoint was the change from baseline in HbA1c, and sec-ondary endpoints were the change in body weight and the proportion of participants with a reduction in body weight of ≥ 5% and ≥ 10%, respectively, 6 months after the initiation of semaglutide treatment. Results: At 6-month follow-up, no significant difference was observed between the two formulations in terms of HbA1c reduction (IS -1.1% vs OS -1.4%, p=0.126) and weight loss (IS -6.50 kg vs OS -5.90 kg, p=0.714). Exactly the same proportion of participants in both groups achieved a weight loss of ≥ 5% (56.7%, n=30). A weight loss ≥ 10% was observed in 20.7% (n=11) of participants administered IS and 15.1% (n=8) of participants adminis-tered OS, respectively (p=0.454). Conclusion: In a real-world setting, oral semaglutide as add-on therapy to ongoing antihyperglycemic treatment in patients with inadequately controlled type 2 diabetes who had not previously received GLP-1 RA demonstrated the same effectiveness as injectable semaglutide in terms of gly-cemic control and weight loss after 6 months of treatment.

Preprint ARTICLE | doi:10.20944/preprints202307.2139.v1

Orai3 calcium channel regulates oral/oropharyngeal cancer stemness via ID1 expression

Anthony Nguyen, Youngjae Sung, Sung Hee Lee, Charlotte Ellen Martin, Sonal Srikanth, Mo K. Kang, Reuben Kim, No-Hee Park, Yousang Gwack, Yong Kim, Ki-Hyuk Shin

Subject: Biology And Life Sciences, Life Sciences Keywords: Calcium; Orai3; OSCC; cancer stem-like cells; ID1

Online: 1 August 2023 (11:31:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0808.v2

Disintegrin-like Protein Strategy to Inhibit Aggressive Triple Negative Breast Cancer

Inès Limam, Mohamed Abdelkarim, Mohamed El Ayeb, Michel Crepin, Naziha Marrakchi, Mélanie Di Benedetto

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: Disintegrin-like; breast cancer; TNBC; HUVEC; migration; angiogenesis

Online: 13 June 2023 (04:03:08 CEST)

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Preprint REVIEW | doi:10.20944/preprints202212.0212.v1

The Involvement of Krüppel-like Factors in Cardiovascular Diseases

Michelle Giovanna Santoyo-Suarez, Jimena D. Mares-Montemayor, Gerardo R. Padilla-Rivas, Juan L. Delgado-Gallegos, Adriana G. Quiroz-Reyes, Jorge A. Roacho-Perez, Diego F. Benitez-Chao, Lourdes Garza-Ocañas, Gilberto Arevalo-Martinez, Elsa N. Garza-Treviño, Jose Francisco Islas

Subject: Biology And Life Sciences, Cell And Developmental Biology Keywords: Cardiovascular diseases; Krüppel -like factors; Transcription factor regulation

Online: 13 December 2022 (01:13:14 CET)

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Preprint ARTICLE | doi:10.20944/preprints202210.0308.v1

CHRDL1 Regulates Stemness in Glioma Stem-Like Cells

Inka Berglar, Stephanie Hehlgans, Franz Rödel, Donat Kögel, Benedikt Linder

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: Glioma; Glioblastoma; Glioma stem-like cells; CHRDL1; BMP4

Online: 20 October 2022 (11:20:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202208.0193.v1

Association between Liver Function Indicators, Immunoglobulins, and Toll-like Receptors and Neuropilin-1 Expression in Patients with COVID-19

Salma A. El Kazafy, Amr E. Ahmed, Yasser M. Fouad, Azza F. Said, Tarek M. Ali, Ahmad EI Askary, Hebatallah H. Assal, Osama M. Ahmed

Subject: Medicine And Pharmacology, Hematology Keywords: liver; Neuropilin-1; Toll-like receptors; COVID-19

Online: 10 August 2022 (05:05:04 CEST)

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Purpose: The study aimed to investigate if there were any links between liver function biomarkers and immunoglobulins levels in serum, and Toll-like receptors (TLRs) and neuropilin-1 (NRP1) in COVID-19 patients. The study also aimed to assess the accuracy—sensitivity, specificity, and area under the curve (AUC) by the receiver operator curve (ROC) analysis for immunoglobulins levels and TLRs expressions. Patients and Methods: This study included 150 patients (100 patients with confirmed COVID-19 and 50 healthy volunteers as a control group). Patients with COVID-19 were subdivided into two groups according to the severity of symptoms (moderate and severe, with 50 patients each). Serum C-reactive protein (CRP), alanine aminotransaminase (ALT), aspartate aminotransaminase (AST), albumin, lactate dehydrogenase (LDH), immunoglobulin (Ig) G, and IgM levels were estimated. TLRs (TLR2 and TLR4) and NRP1 gene expression in blood samples were investigated using quantitative real-time polymerase chain reaction (qRT-PCR). ROC analysis was also applied to determine the accuracy of various detected parameters in predicting the possibility of COVID-19 infection. Results: In COVID-19 patients, serum parameters related to liver function, except serum albumin, CRP, IgG, IgM, and TLR2, TLR4, and NRP1 mRNA expression levels, significantly elevated compared to controls. Severe COVID-19 patients exhibited significantly higher liver enzymes (ALT, AST and LDH), CRP, and TLR2 mRNA expression levels and lower albumin levels than the moderate group. In the moderate and severe groups, ALT, CRP, TLR2, and TLR4 had a significant positive correlation with IgM levels. ALT, AST, LDH, CRP, TLR2, and TLR4 showed a significant positive correlation with IgG levels in both groups. In both the moderate and severe groups, NRP1 expression was found to be significantly correlated with CRP, IgG, IgM, TLR2, and TLR4. In contrast, serum albumin levels exhibited a significant negative correlation with IgG and IgM levels only in the severe group, but they showed a significant negative correlation with TLR2, TLR4, and NRP1 expression in both moderate and severe groups. Serum ALT and AST activities were positively correlated with NRP1 expression in the moderate group but not in the severe group and as well as TLR2 and TLR4 expression in both the moderate and severe groups. ROC analysis indicated that AUC was higher than 0.800 for serum IgM level and TLR4 gene expression in moderate COVID-19 group. Conclusions: The increased liver function biomarkers in serum and NRP1 expression are closely correlated with sustained activations in humoral and innate immune responses during COVID-19 infection. As a result, TLR2, TLR4, and NRP1 could be targets for limiting COVID-19 infection and impairment effects on liver function. Moreover, detection of IgM level in serum and TLR4 expression in blood have a good accuracy in predicting the possibility of infection with COVID-19 in moderate cases.

Preprint ARTICLE | doi:10.20944/preprints202109.0158.v1

Oncological Features of Intravenous Leiomyomatosis: Involvement of Mesenchymal Tumor Stem-Like Cells

Saya Tamura, Takuma Hayashi, Hideki Tokunaga, Nobuo Yaegashi, Kaoru Abiko, Ikuo Konishi

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: intravenous leiomyomatosis; leiomyoma; leiomyosarcoma; tumor stem-like cells

Online: 8 September 2021 (20:00:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202106.0691.v1

Calcitriol Promotes Differentiation of Glioma Stem-Like Cells and Increases their Susceptibility to Temozolomide

Julia Gerstmeier, Anna-Lena Possmayer, Süleyman Bozkurt, Marina E. Hoffmann, Ivan Dikic, Christel Herold-Mende, Michael C. Burger, Christian Münch, Donat Kögel, Benedikt Linder

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Calcitriol; Vitamin D3; Glioblastoma; Glioblastoma stem-like cells

Online: 29 June 2021 (08:37:43 CEST)

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Preprint REVIEW | doi:10.20944/preprints202105.0625.v1

The Dual Role of Toll-like Receptor10

Motahareh Dargahi, Niloufar Taheri, Zahra Mirsanei, Arezoo Rasti, Reza Jafari

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: Toll-Like Receptor; Innate Immunity; Inflammation; Anti-inflammation

Online: 26 May 2021 (08:17:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201811.0629.v1

Explore the Potential Mechanism of Bufadienolides-Like Chemicals on Breast Cancer through Bioinformatics Analysis

Yingbo Zhang, Xiaomin Tang, Yuxin Pang, Luqi Huang, Dan Wang, Chao Yuan, Xuan Hu

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: bufadienolides-like chemicals; molecular mechanism; anti-cancer; bioinformatics

Online: 30 November 2018 (10:14:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints201612.0107.v1

Evidence for the Involvement of Toll-Like Receptor 4 (TLR4)-Mediated Apoptosis in Gynecological Cancers

Jinyoung Won, Youngjeon Lee, Kyu-Tae Chang, Yonggeun Hong

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: apoptosis; gynecologic cancer; lipopolysaccharide; proliferation; Toll-like receptor

Online: 20 December 2016 (11:12:07 CET)

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Preprint REVIEW | doi:10.20944/preprints202005.0293.v1

Microgravity, Bone Homeostasis, and Insulin-like Growth Factor-1

John Kelly Smith

Subject: Biology And Life Sciences, Cell And Developmental Biology Keywords: Insulin-like growth factor-1; Insulin-like growth factor-1 receptor; microgravity; osteoblasts; osteocytes; osteoclasts; IGF-1; IGF1R; rIGF-1

Online: 18 May 2020 (03:31:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.1346.v1

A Study on the Recovery of Valuable Metals from Solar Cells Using Acid Leaching and Substitution Reactions

Kim Hyun Jong, Erdenebold Urtnasan, Jei-Pil Wang

Subject: Engineering, Metallurgy And Metallurgical Engineering Keywords: solar cell; recovery; silicon; silver; leaching

Online: 21 November 2023 (14:24:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints202311.0730.v1

Synergistic Zinc(II) and Formate Doping of alpha-FAPbI₃ Perovskite: Thermal Stabilization and Enhanced Photoluminescence Lifetime

Merk M. Hoeksma, René M. Williams

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: solar cells; formamidinium; lead; iodide; alloys

Online: 13 November 2023 (10:03:11 CET)

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Preprint ARTICLE | doi:10.20944/preprints202307.1858.v2

Thermospheric Density Response to the Solar Activity and QBO

Bo Li, Ruifei Cui, Libin Weng, Jianfang Fei

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: thermospheric density; GAMDM; QBO; solar activity

Online: 31 July 2023 (11:23:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202303.0055.v1

A Feasibility Analysis of a Solar Power Plant with Direct Steam Generation System in Sonora, Mexico

Ernesto Enciso Contreras, Juan Gabriel Barbosa-Saldaña, Jesus de la Cruz Alejo, Claudia Del C. Gutiérrez-Torres, Jose Alfredo Jimenez Bernal, Maria Belem Arce Vazquez

Subject: Engineering, Mechanical Engineering Keywords: PTC; DSG; solar energy; power plant

Online: 3 March 2023 (03:44:17 CET)

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Preprint REVIEW | doi:10.20944/preprints202109.0508.v2

How Fast Is the Distance between Earth and the Sun Changing in the Solar System?

Jim Henry, Mesut Yurukcu, George Nnanna

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Solar System; Earth; Sun; Expansion; Universe

Online: 12 October 2021 (14:27:15 CEST)

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Working Paper ARTICLE

Mechanics of the Gyroscopic Precession and Calculation of the Galactic Mass

Jian Sun, Ting Xu, Zheng Jiao, Hui Wang

Subject: Physical Sciences, Acoustics Keywords: gyroscopic precession; solar system; galactic mass

Online: 25 May 2021 (11:16:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202105.0138.v1

Effects of Aerosols and Clouds on the Levels of Surface Solar Radiation and Solar Energy in Cyprus

Ilias Fountoulakis, Panagiotis Kosmopoulos, Kyriakoula Papachristopoulou, Panagiotis-Ioannis Raptis, Rodanthi-Elisavet Mamouri, Argyro Nisantzi, Antonis Gkikas, Jonas Witthuhn, Sebastian Bley, Anna Moustaka, Johannes Buehl, Patric Seifert, Diofantos G. Hadjimitsis, Charalampos Kontoes, and Stelios Kazadzis

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: solar energy; dust; aerosol; clouds; Cyprus

Online: 7 May 2021 (10:36:00 CEST)

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Preprint REVIEW | doi:10.20944/preprints202103.0260.v1

Current Status, Scenario, and Prospective of Renewable Energy in Algeria: A Review

Younes Zahraoui, M. Reyasudin Basir Khan, Ibrahim Al Hamrouni, Saad Mekhilef, Mahrous Ahmed

Subject: Engineering, Automotive Engineering Keywords: Algeria; Africa; Renewable Energy; Solar; PENREE

Online: 9 March 2021 (10:50:33 CET)

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Preprint ARTICLE | doi:10.20944/preprints201912.0407.v1

Re-desiging and Fabrication of the Contact Area of a Solar Milk Pasteurizer

Enebe Vincent, Moveh Samuel

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: re-designing; fabrication; solar; milk; pasteurizer

Online: 31 December 2019 (10:22:43 CET)

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Preprint DATA DESCRIPTOR | doi:10.20944/preprints201811.0120.v2

SolarView: Georgia Solar Adoption in Context

Jacqueline Hettel Tidwell, Abraham Tidwell, Steffan Nelson, Marcus Hill

Subject: Engineering, Energy And Fuel Technology Keywords: solar; technology adoption; demographics; mixed methods

Online: 30 November 2018 (15:47:46 CET)

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Working Paper HYPOTHESIS

Hypothesis and Feasible Mechanism for Appearance of Post-Post-Fe Nuclei in Solar System

Elizabeth Pavlova-Tito, Vadim I. Pavlov

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Hypothesis, Fission, Heavy Post-Post-Fe Elements, Solar System

Online: 23 July 2019 (11:17:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202002.0114.v1

Proteomics Computational Analyses Suggest That the Envelope Glycoproteins of Segmented Flavi-Like Jingmen Group Viruses Are Class II Viral Fusion Proteins (β-Penetrenes) with Mucin-Like Domains

Courtney E. Garry, Robert F. Garry

Subject: Biology And Life Sciences, Virology Keywords: Jingmen tick virus; Alongshan virus; flavi-like viruses; class II viral fusion proteins; O-liked glycans; mucin-like domain; virus evolution

Online: 9 February 2020 (17:29:14 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.1097.v1

Assessing the Wind Power Potential in Naama, Algeria to Complement Solar Energy through Integrated Modeling of the Wind Resource and Turbine Wind Performance

Sekkal Mohammed Chakib, Ziani Zakarya, Mahdad Moustafa Yassine, Baghli Mohammed Haris, Bessenouci Mohammed Zakaria

Subject: Engineering, Other Keywords: Wind power; solar photovoltaics; hybrid systems; complementary generation; correlated resources; wind speed analysis; turbine simulation; evening wind patterns; solar irradiance; renewable energy integration; wind-solar system; Algeria

Online: 18 September 2023 (13:34:26 CEST)

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Preprint REVIEW | doi:10.20944/preprints202305.1534.v1

A Review of State-of-the-art and Short-Term Forecasting Models for Solar PV Power Generation

Wen-Chang Tsai, Chia-Sheng Tu, Chih-Ming Hong, Whei-Min Lin

Subject: Engineering, Energy And Fuel Technology Keywords: Predictive models; Weather research and forecasting (WRF); Solar irradiance forecasting; Solar PV power forecasting; Renewable energy sources.

Online: 23 May 2023 (02:32:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202106.0166.v1

Effects of Natural Weathering on the Performance of High Solar Reflective Index Paint Surfaces Exposed in Harsh Climatic Conditions of United Arab Emirates

Tirumala Uday Kumar Nutakki, Waqar Ullah Kazim

Subject: Engineering, Automotive Engineering Keywords: Cool materials; cool coatings; solar reflective index; solar reflectance; thermal emittance; natural weathering; green buildings; reflective paints

Online: 7 June 2021 (11:13:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.2159.v1

Fasting GLP-1 Levels and Albuminuria Are Negatively Associated in Patients with Type 2 Diabetes Mellitus

Cheol-Won Jang, Tae Yang Yu, Jin Woo Jeong, Se Eun Ha, Rajan Singh, Moon Young Lee, Seungil Ro

Subject: Medicine And Pharmacology, Endocrinology And Metabolism Keywords: Type 2 diabetes mellitus; Glucagon-like peptide-1; Albuminuria

Online: 31 January 2024 (07:20:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.1648.v1

Tumor and Tumor-Like Lesions in Red Foxes (Vulpes vulpes) from Croatia

Šimun Naletilić, Ivan-Conrado Šoštarić-Zuckermann, Željko Mihaljević

Subject: Biology And Life Sciences, Animal Science, Veterinary Science And Zoology Keywords: Red fox, Vulpes vulpes, tumor, tumor-like lesion, Croatia

Online: 21 December 2023 (11:34:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.1038.v1

Magnetic, Antiferroelectric Like Behavior, and Resistance Switching Properties in BiFeO₃-CaMnO₃ Polycrystalline Thin Films

Abdelilah LAHMAR, Jacem Zidani, Jamal Belhadi, Ilham Hamdi Alaoui, Hussam Musleh, Jihad Asaad, Naji Al Dahoudi, Mimoun El Marssi

Subject: Physical Sciences, Applied Physics Keywords: ferromagnetic; Antiferroelectric like; polycrystalline films, BiFeO3-CaMnO3; Resistance switching

Online: 17 October 2023 (07:07:16 CEST)

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