cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On Bifacial Solar Cell Transparency at Radio Frequencies
Creators: name: Roo-Ons, M.J.
name: Shynu, S.V.
name: Ammann, M.J.
name: McCormack, S.J.
name: Norton, B.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
Off-grid Applications and Rural Electrification

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3963-3966
description: The use of bifacial cells as a frequency selective surface is proposed in this paper. The lack of the
homogeneous rear side metallization and the periodicity of the finger grid contacts enable the bifacial cell structure
to act as a wire-grid polarizer allowing transmission of radio waves of certain frequencies and polarizations. A fullwave
integral-equation based electromagnetic simulator was used to determine the transmission loss of a theoretical
bifacial cell with mirrored grid finger contacts and various silicon conductivities over the frequency range 2 to 5
GHz.
Anticoagulation clinic drive-up service during COVID-19 pandemic in Qatar
Creators: name: Alhmoud, Eman
name: Abdelsamad, Osama
name: Soaly, Ezeldin
name: Enany, Rasha El
name: Elewa, Hazem
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Cardiovascular medicine and haematology
Public health

description: Coronavirus Disease 2019 (COVID-19) is a pandemic affecting many countries worldwide. Given the increasing incidence especially in elderly and individuals with comorbid conditions, it is advised by health authorities to stay home if possible, maintain social distancing and stay away from those who are sick or could be infected. Patients with comorbidities especially cardiovascular disease are at higher risk of getting infected with COVID-19 and have worse prognosis. Among efforts to safely manage warfarin patients during this pandemic, we introduced a hospital drive-up anticoagulation testing service. This service can reduce the risk of exposure of anticoagulation patients to COVID-19 by reducing the contact time with the different personnel at the hospital and by maintaining those patients at a safe distance from othersOther Information Published in: Journal of Thrombosis and Thrombolysis
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s11239-020-02206-4
Investigations and Tests of LED-Based PV-Powered Lanterns
Creators: name: Avato, P.
name: Bopp, G.
name: Cabraal, A.
name: Grüner, R.
name: Lux, S.
name: Pfanner, N.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
Off-grid Applications and Rural Electrification

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3967-3976
description: Currently, 1.6 billion people worldwide do not have access to electricity. For the poorest of the poor, lighting is often
the most expensive item in terms of energy use, typically accounting for 10-15% of total household income. Yet, while consuming
a large share of scarce income, fuel-based lighting provides little in return. New advancements in lighting technology,
such as light-emitting diodes (LEDs), promise clean, portable and durable lighting at higher-quality and lower-cost. To assess the
quality of PV-powered LED lanterns, GTZ and the World Bank have entrusted Fraunhofer ISE with the development of appropriate
performance metrics and test procedures. To limit testing costs, a three-level test procedure was developed: (i) a simple visual
and function test, (ii) lab measurements of the relevant parameters for all main components and (iii) a luminous maintenance test
of the light source. The test procedure was validated in a test of more than ten solar lanterns with GTZ funding; in a second step,
the procedure will be further improved through a test of another seventeen solar lanterns which is funded by the World Bank.
Comparative effectiveness and safety of direct oral anticoagulants compared to warfarin in morbidly obese patients with acute venous thromboembolism: systematic review and a meta-analysis
Creators: name: Elshafei, Mohamed Nabil
name: Mohamed, Mouhand F. H.
name: El-Bardissy, Ahmed
name: Ahmed, Mohamed Badie
name: Abdallah, Ibtihal
name: Elewa, Hazem
name: Danjuma, Mohammed
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Cardiovascular medicine and haematology

description: Direct oral anticoagulant (DOAC) agents are becoming the anticoagulation strategy of choice. However, their use in the treatment of acute venous thromboembolism (VTE) in morbidly obese patients (bodyweight of > 120 kg or BMI > 40 kg/m2) guarded. This is due to the scarce data supporting their use in this population. As a result, the International Society on Thrombosis and Haemostasis recommended against their use in this cohort of patients. New data emerged supporting the use of DOACs in these patients. Hence, we aimed to systematically review the literature exploring the efficacy and safety of these agents compared to warfarin in VTE treatment in morbidly obese patients. A systematic review of PubMed and EMBASE since inception until 01/04/2020. Subsequently, a non-inferiority (NI of 1.75) meta-analysis utilizing the random-effects model. Five observational studies (6585 patients) were included in our meta-analysis. DOAC analogs were non-inferior compared to warfarin in reducing the primary efficacy outcome of VTE recurrence (OR 1.07, 95% CI 0.93–1.23) and the primary safety outcome (major bleeding events) (OR 0.80, 95% CI 0.54–1.17). Our meta-analysis comprising real-world observational data concludes that the use of DOAC analogs in morbidly obese patients (bodyweight of > 120 kg or BMI > 40 kg/m2) is non-inferior with regards to efficacy and safety compared to warfarin. This finding helps to resolve the uncertainty associated with the use of DOACs in this cohort. Additionally, it invites for a confirmatory non-inferiority randomized controlled trial testing DOAC vs. Warfarin in this group of patients.Other Information Published in: Journal of Thrombosis and Thrombolysis
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s11239-020-02179-4
Metallicity gradients in Local Universe galaxies: time evolution and effects of radial migration
Creators: name: Magrini, L.
name: Coccato, L.
name: Stanghellini, L.
name: Casasola, V.
name: Galli, D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Our knowledge of the shape of radial metallicity gradients in disc galaxies has recently improved. Conversely, the understanding of their time evolution is more complex, since it requires analysis of stellar populations with different ages, or systematic studies of galaxies at different redshifts. In the Local Universe, Hii regions and planetary nebulae (PNe) are important tools to investigate it. We present an in-depth study of all nearby spiral galaxies (M33, M31, NGC300, and M81) with direct-method nebular abundances of both populations. For the first time, we also evaluate the radial migration of PN populations. We analyse Hii region and PN properties to: determine whether oxygen in PNe is a reliable tracer for past interstellar medium (ISM) composition; homogenise the published datasets; estimate the migration of the oldest stellar populations; determine the overall chemical enrichment and slope evolution. We confirm that oxygen in PNe is a reliable tracer for the past ISM metallicity. We find that PN gradients are flatter than or equal to those of Hii regions. When radial motions are negligible, this result provides a direct measurement of the time evolution of the gradient. For galaxies with dominant radial motions, we provide upper limits on the gradient evolution. Finally, the total metal content increases with time in all target galaxies, with early morphological type having a larger increment Delta(O/H) than late-type galaxies. Our findings provide important constraints to discriminate among different galactic evolutionary scenarios, favouring cosmological models with enhanced feedback from supernovae. The advent of extremely large telescopes will allow us to include galaxies in a wider range of morphologies and environments, thus putting firmer constraints to galaxy formation and evolution scenarios.
description: A&A accepted, 17 pages, 12 figures
Comparison between Lead-Acid and Li-Ion Accumulators in Stand-Alone Photovoltaic System Using the Gross Energy Requirement Criterion
Creators: name: Thiaux, Y.
name: Schmerber, L.
name: Seigneurbieux, J.
name: Multon, B.
name: Ben Ahmed, H.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Systems
Off-grid Applications and Rural Electrification

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3982-3990
description: The high economic (and energetic) cost of storage accumulator system is still limiting the proliferation
of SAPV system. Presently, due to its technical maturity and its low economical investment cost, the storage system
universally used in SAPV market, is the lead-acid technology. Nevertheless, the advantages offered by the Lithiumion
(Li-ion) technology in terms of better charging/discharging efficiencies and ageing make Li-ion accumulators
more and more envisioned in such applications. In this paper, sizing optimisations of SAPV systems have been lead
for each accumulator technology considered. The photovoltaic system has been simulated hour by hour on the whole
cycle life duration. Experimental outcomes, lead in order to establish a complete energetic model for Li-ion
accumulators, are presented in this paper. Results have been compared using the Gross Energy Requirement (GER)
criterion of the whole SAPV system. Results show that Li-ion technology allows us to reduce the energy cost of
SAPV systems notably when considering a simulation duration corresponding to the expected life time of PV panels.
Assessment of the attitude, awareness and practice of periprocedural warfarin management among health care professional in Qatar. A cross sectional survey
Creators: name: Eljilany, Islam
name: El-Bardissy, Ahmed
name: Nemir, Arwa
name: Elzouki, Abdel-Naser
name: El Madhoun, Ihab
name: Al-Badriyeh, Daoud
name: Elewa, Hazem
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Cardiovascular medicine and haematology

description: It is estimated that 10–15% of oral anticoagulant (OAC) patients, would need to hold their OAC for scheduled surgery. Especially for warfarin, this process is complex and requires multi-layer risk assessment and decisions across different specialties. Clinical guidelines deliver broad recommendations in the area of warfarin management before surgery which can lead to different trends and practices among practitioners. To evaluate the current attitude, awareness, and practice among health care providers (HCPs) on warfarin periprocedural management. A multiple-choice questionnaire was developed, containing questions on demographics and professional information and was completed by187 HCPs involved in warfarin periprocedural management. The awareness median (IQR) score was moderate [64.28% (21.43)]. The level of awareness was associated with the practitioner’s specialty and degree of education (P = 0.009, 0.011 respectively). Practice leans to overestimate the need for warfarin discontinuation as well as the need for bridging. Participants expressed interest in using genetic tests to guide periprocedural warfarin management [median (IQR) score (out of 10) = 7 (5)]. In conclusion, the survey presented a wide variation in the clinical practice of warfarin periprocedural management. This study highlights that HCPs in Qatar have moderate awareness. We suggest tailoring an educational campaign or courses towards the identified gaps.Other Information Published in: Journal of Thrombosis and Thrombolysis
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s11239-020-02111-w
Instance-Aware Hashing for Multi-Label Image Retrieval
Creators: name: Lai, Hanjiang
name: Yan, Pan
name: Shu, Xiangbo
name: Wei, Yunchao
name: Yan, Shuicheng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Similarity-preserving hashing is a commonly used method for nearest neighbour search in large-scale image retrieval. For image retrieval, deep-networks-based hashing methods are appealing since they can simultaneously learn effective image representations and compact hash codes. This paper focuses on deep-networks-based hashing for multi-label images, each of which may contain objects of multiple categories. In most existing hashing methods, each image is represented by one piece of hash code, which is referred to as semantic hashing. This setting may be suboptimal for multi-label image retrieval. To solve this problem, we propose a deep architecture that learns \textbf{instance-aware} image representations for multi-label image data, which are organized in multiple groups, with each group containing the features for one category. The instance-aware representations not only bring advantages to semantic hashing, but also can be used in category-aware hashing, in which an image is represented by multiple pieces of hash codes and each piece of code corresponds to a category. Extensive evaluations conducted on several benchmark datasets demonstrate that, for both semantic hashing and category-aware hashing, the proposed method shows substantial improvement over the state-of-the-art supervised and unsupervised hashing methods.
description: has been accepted as a regular paper in the IEEE Transactions on Image Processing, 2016
Effect of SAMe-TT2R2 score and genetic polymorphism on the quality of anticoagulation control in Qatari patients treated with warfarin
Creators: name: Elewa, Hazem
name: Qurishi, Iqrah
name: Abouelhassan, Rawan
name: Abou Safrah, Salam
name: Alhamoud, Eman
name: Bader, Loulia
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Cardiovascular medicine and haematology

description: There is no strong evidence on pharmacogenetics role on the quality of INR control after the initiation phase and on the maintenance of stable INR on the long term as measured by the time in therapeutic range (TTR). The benefit of a score such as SAMe-TT2R2 is that it can preemptively guide clinicians on whether to start the patient on warfarin or direct oral anticoagulant. To determine the association between genetic variants in CYP2C9, VKORC1, and CYP4F2 and TTR. To validate SAMe-TT2R2 score predictive ability on the quality of anticoagulation in Qatari patients. This is an observational nested case–control study that was conducted on a cohort of Qatari patients treated with warfarin with previously identified genotype for the CYP2C9, VKORC1, and CYP2F4. The sample size of this cohort was 148 patients. Mean TTR was 62.7 ± 21%. TTR was not significantly different among carriers of the CYP2C9*2 &*3, VKORC1(–1639G>A) or CYP4F2*3 compared to their non-carriers alleles. None of the factors in the SAMe-TT2R2 score had a significant effect on the TTR except for the female gender where TTR was significantly lower in females (n = 89) compared to males (n = 59) (59.6 ± 21% vs. 67.2 ± 20%, p = 0.03). Furthermore, patients with SAMe-TT2R2 score of zero had significantly better TTR compared to those with higher scores (76.5 ± 17% vs. 61.8 ± 21%, p = 0.04). Logistic regression analysis showed that high SAMe-TT2R2 score was the only statistically significant predicting factor of poor INR control (odds ratio (OR) 5.7, 95% confidence interval (CI) 1.1–28.3, p = 0.034). Genetic variants have no contribution to the quality of INR control. SAMe-TT2R2 score was predictive for the poor quality of anticoagulation in a cohort of Qatari patients.Other Information Published in: Journal of Thrombosis and Thrombolysis
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s11239-020-02102-x
Effect of Rapid Thermal Process for CDS Silicon Solar Cell
Creators: name: Takakura, T.
name: Kidoguchi, S.
name: Yamasaki, I.
name: Okamoto, S.
name: Okamoto, Y.
name: Taniguchi, H.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1472-1474
description: The effect of rapid thermal processing (RTP) on co-firing of SiNx antireflection layer and aluminum back electrode of CDS (Crystallization on Dipped Substrate) Si solar cell was investigated. Cell efficiency of CDS Si solar cells were drastically improved by RTP compared to conventional belt furnace. It is revealed that the improvement of cell efficiency is strongly correlated to the upgrading of wafer quality. In addition, the difference of RTP effect between CDS and cast Si solar cell was also reported.
Nanotexturization of Multicrystalline Silicon Surface by Two-Step Localized Chemical Oxidation - Wet Chemical Etching Process
Creators: name: Dimitrov, D.Z.
name: Lin, C.-H.
name: Huang, C.-R.
name: Du, C.H.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1478-1480
description: Nano-scale textures are formed on different crystalline silicon surfaces by using two-step wet – chemical texturization method consisting of electroless treatment in SPS (PPS)/AN solutions for localized oxidation and consequent etching of the oxidation products. The reflectivity of the nanotexturized surfaces is found to be less than 5% in a broad spectral interval. The morphology characterizations revealed a random texture with several hundreds of nanometer lateral dimensions and an aspect ratio approximately of 2. The selective oxidation/etching method allows simultaneously refractive index modulation and surface texturing so the application of both surface texturing and anti-reflection coating during the same processing step is possible.
A theory of instrumental and existential rational decisions: Smith, Weber, Mauss, Tönnies after Martin Buber
Creators: name: Khalil, Elias L.
name: Marciano, Alain
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Applied computing
Applied economics

description: This paper proffers a dialogical theory of decision-making: decision-makers (DMs) are engaged in two modes of rational decisions, instrumental and existential. Instrumental rational decisions take place when the DM views the self externally to the objects, whether goods or animate beings. Existential rational decisions take place when the DM views the self in union with such objects. While the dialogical theory differs from Max Weber’s distinction between two kinds of rationality, it follows Martin Buber’s philosophical anthropology. The paper expounds the ramifications of the dialogical theory in understanding structures of exchange considering assessments of diverse thinkers.Other Information Published in: Theory and Decision
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s11238-020-09772-2
Electron Capture Cross Section of Iron-Boron Pairs in Crystalline Silicon Over the Temperature Range 0-100°C
Creators: name: Paudyal, B.B.
name: McIntosh, K.R.
name: Macdonald, D.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1481-1483
description: The electron capture cross section of the acceptor level of iron-boron pairs in crystalline silicon for the temperature range 0 oC to 100 oC has been measured by using a temperature controlled inductive coil lifetime measurement instrument. The characteristic crossover points for which the effective lifetime remains unchanged with the injection density are determined from the plot of injection dependent lifetime curves before and after light soaking of the silicon wafers for different temperatures. The electron capture cross section of iron-boron pairs is then calculated from the slope of the characteristic plot of crossover point density as the function of doping density. The measurements were conducted on four wafers with differing boron concentrations ranging from 1 × 1015 to 5 × 1016 cm-3. Taking published data for the temperature dependence of the capture cross section of interstitial iron in silicon, we find that the electron capture cross section of iron-boron pairs decreases with temperature.
The information inelasticity of habits: Kahneman’s bounded rationality or Simon’s procedural rationality?
Creators: name: Khalil, Elias L.
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: Sociology
subject: FOS: Sociology

description: Why would decision makers (DMs) adopt heuristics, priors, or in short “habits” that prevent them from optimally using pertinent information—even when such information is freely-available? One answer, Herbert Simon’s “procedural rationality” regards the question invalid: DMs do not, and in fact cannot, process information in an optimal fashion. For Simon, habits are the primitives, where humans are ready to replace them only when they no longer sustain a pregiven “satisficing” goal. An alternative answer, Daniel Kahneman’s “mental economy” regards the question valid: DMs make decisions based on optimization. Kahneman understands optimization not differently from the standard economist’s “bounded rationality.” This might surprise some researchers given that the early Kahneman, along with Tversky, have uncovered biases that appear to suggest that choices depart greatly from rational choices. However, once we consider cognitive cost as part of the constraints, such biases turn out to be occasional failures of habits that are otherwise optimal on average. They are optimal as they save us the cognitive cost of case-by-case deliberation. While Kahneman’s bounded rationality situates him in the neoclassical economics camp, Simon’s procedural rationality echoes Bourdieu’s “habitus” camp. To abridge the fault line of the two camps, this paper proposes a “two problem areas hypothesis.” Along the neoclassical camp, habits satisfy wellbeing, what this paper calls “substantive satisfaction.” Along the Bourdieu camp, habits satisfy belonging, love, and bonding with one’s environment, what this paper calls “transcendental satisfaction.”Other Information Published in: Synthese
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s11229-022-03815-7
A new insight into the V1184 Tau variability
Creators: name: Giannini, T.
name: Lorenzetti, D.
name: Harutyunyan, A.
name: Causi, G. Li
name: Antoniucci, S.
name: Arkharov, A. A.
name: Larionov, V. M.
name: Strafella, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: V1184 Tau is a young variable for long time monitored at optical wavelengths. Its variability has been ascribed to a sudden and repetitive increase of the circumstellar extinction (UXor-type variable), but the physical origin of such variation, although hypothesized, has not been fully supported on observational basis. To get a new insight into the variability of V1184 Tau, we present new photometric and spectroscopic observations taken in the period 2008-2015. During these years the source has reached the same high brightness level that had before the remarkable fading of about 5 mag undergone in 2004. The optical spectrum is the first obtained when the continuum is at its maximum level. The observations are interpreted in the framework of extinction driven variability. We analyze light curves, optical and near-infrared colors, SED and optical spectrum. The emerging picture indicates that the source fading is due to an extinction increase of DeltaA_V about 5 mag, associated with a strong infrared excess, attributable to a thermal component at T=1000 K. From the flux of H(alpha) we derive a mass accretion rate between 10^-11 -5 10^-10 M_sun yr^-1 s, consistent with that of classical T Tauri stars of similar mass. The source SED was fitted for both the high and low level of brightness. A scenario consistent with the known stellar properties (such as spectral type, mass and radius) is obtained only if the distance to the source is of few hundreds of parsecs, in contrast with the commonly assumed value of 1.5 kpc. Our analysis partially supports that presented by Grinin (2009), according to which the circumstellar disk undergoes a periodical puffing, whose observational effects are both to shield the central star and to evidence a disk wind activity. However, since the mass accretion rate remains almost constant with time, the source is likely not subject to accretion bursts.
description: Accepted by A&A
Development of new tools to study membrane-anchored mammalian Atg8 proteins
Creators: name: Park, Sang-Won
name: Jeon, Pureum
name: Yamasaki, Akinori
name: Lee, Hye Eun
name: Choi, Haneul
name: Mun, Ji Young
name: Jun, Yong-Woo
name: Park, Ju-Hui
name: Lee, Seung-Hwan
name: Lee, Soo-Kyeong
name: Lee, You-Kyung
name: Song, Hyun Kyu
name: Lazarou, Michael
name: Cho, Dong-Hyong
name: Komatsu, Masaaki
name: Noda, Nobuo N.
name: Jang, Deok-Jin
name: Lee, Jin-A
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Inorganic Chemistry
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Mammals conserve multiple mammalian Atg8-family proteins (mATG8s) consisting of GABARAP (GABA type A receptor-associated protein) and MAP1LC3/LC3 (microtubule associated protein 1 light chain 3) subfamilies that tightly bind to autophagic membranes in a membrane-anchored form. These proteins are crucial for selective autophagy and recruit proteins bearing LC3-interacting region (LIR) motifs. However, because limited research tools are available, information on the specific roles of each membrane-anchored mATG8 in selective autophagy is scarce. In this study, we identified LIR motifs specific to the membrane-anchored form of each mATG8 and characterized the residues critical for their selective interaction using cell-based assays and structural analyses. We then used these selective LIR motifs to develop probes and irreversible deconjugases that targeted selective membrane-anchored mATG8s in the autophagic membrane, revealing that membrane-anchored GABARAP subfamily proteins regulate the aggrephagy of amyotrophic lateral sclerosis-linked protein aggregates. Our tools will be useful for elucidating the functional significance of each mATG8 protein on autophagic membranes in autophagy research. A:C autophagic membrane:cytosol; ALS amyotrophic lateral sclerosis; ATG4 autophagy related 4; Atg8 autophagy related 8; BafA1 bafilomycin A1; BNIP3L/Nix BCL2 interacting protein 3 like; CALCOCO2/NDP52 calcium binding and coiled-coil domain 2; EBSS Earle’s balanced salt solution; GABARAP GABA type A receptor-associated protein; GST glutathione S transferase; HKO hexa knockout; Kd dissociation constant; LIR LC3-interacting region; MAP1LC3/LC3 microtubule associated protein 1 light chain 3; NLS nuclear localization signal/sequence; PE phosphatidylethanolamine; SpHfl1 Schizosaccharomyces pombeorganic solute transmembrane transporter; SQSTM1/p62 SQSTM1/p62; TARDBP/TDP-43 TAR DNA binding protein; TKO triple knockout
Novel Mechanistic Concepts for Acidic Wet Chemical Etching - A Road to Process Optimization
Creators: name: Patzig-Klein, S.
name: Kroke, E.
name: Röver, I.
name: Wambach, K.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1484-1487
description: Recent fundamental investigations agree in the concept of nitrogen-oxygen cations (NO2+, NO+) being crucially involved in acidic wet chemical etching processes using HF – HNO3 - based solutions. The formation and subsequent chemical reactions of these cations determine intensity and mode of silicon dissolution. Thus, mixtures containing nitrosyl ions (NO+) are useful for detailed investigations of acidic etching reactions. In light of previous studies the effect of NO+ concentrations on etching rates has been studied time-resolved for excess HF concentrations. The nitrosyl ion concentration was measured in diluted etching solutions by ion chromatography. The etching rates exhibit a linear correlation to the nitrosyl ion content. Quantitative solution analysis proofed the slow accumulation of ammonium ions. In combination with concentration and time dependent studies of produced etching structures a convenient regime for selective structuring of polycrystalline silicon surfaces is reported. Qualitative analysis by 19F-NMR spectroscopy identified SiF5-/HF2- complexes in the etching solution as hitherto unknown products of acidic silicon etching reactions.
High Performance Monocrystalline Silicon Solar Cells by Using Rear Surface Passivation of Al2O3/SiNx Stacks Structure
Creators: name: Chang, W.L.
name: Sun, W.-C.
name: Lin, C.-H.
name: Lan, C.W.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1349-1351
description: High performance p-type crystalline silicon(c-Si) solar cells rely on excellent surface passivation. In this study, we use PECVD for silicon nitride (SiNx) and atomic layer deposition for Al2O3 to produce two-layer rear surface passivation in low temperature. Based on cell efficiency measurement, this two-layer stacks structure (Al2O3/SiNx) with 20.1% is better than monolayer (SiNx) structure with 17.5%. Also, according to quantum efficiency measurement, the higher energy conversion efficiency, which is located in the IR range, explains better efficiency of this two-layer stacks structure as compared to non-two-layer one.
The XXL Survey: VI. The 1000 brightest X-ray point sources
Creators: name: Fotopoulou, S.
name: Pacaud, F.
name: Paltani, S.
name: Ranalli, P.
name: Ramos-Ceja, M. E.
name: Faccioli, L.
name: Plionis, M.
name: Adami, C.
name: Bongiorno, A.
name: Brusa, M.
name: Chiappetti, L.
name: Desai, S.
name: Elyiv, A.
name: Lidman, C.
name: Melnyk, O.
name: Pierre, M.
name: Piconcelli, E.
name: Vignali, C.
name: Alis, S.
name: Ardila, F.
name: Arnouts, S.
name: Baldry, I.
name: Bremer, M.
name: Eckert, D.
name: Guennou, L.
name: Horellou, C.
name: Iovino, A.
name: Koulouridis, E.
name: Liske, J.
name: Maurogordato, S.
name: Menanteau, F.
name: Mohr, J. J.
name: Owers, M.
name: Poggianti, B.
name: Pompei, E.
name: Sadibekova, T.
name: Stanford, A.
name: Tuffs, R.
name: Willis, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: X-ray extragalactic surveys are ideal laboratories for the study of the evolution and clustering of active galactic nuclei (AGN). The XXL Survey spans two fields of a combined 50 $deg^2$ observed for more than 6Ms with XMM-Newton, occupying the parameter space between deep surveys and very wide area surveys; at the same time it benefits from a wealth of ancillary data. This paper marks the first release of the XXL point source catalogue selected in the 2-10 keV energy band with limiting flux $F_{2-10keV}=4.8\cdot10^{-14}\rm{erg\,s^{-1}\,cm^{-2}}$. We use both public and proprietary data sets to identify the counterparts of the X-ray point-like sources and improved upon the photometric redshift determination for AGN by applying a Random Forest classification trained to identify for each object the optimal photometric redshift model library. We also assign a probability to each source to be a star or an outlier. We model with Bayesian analysis the X-ray spectra assuming a power-law model with the presence of an absorbing medium. We find an average unabsorbed photon index of $Γ=1.85$ and average hydrogen column density $\log{N_{H}}=21.07 cm^{-2}$. We find no trend of $Γ$ or $N_H$ with redshift and a fraction of 26% absorbed sources ($\log N_{H}>22$). We show that the XXL-1000-AGN number counts extended the number counts of the COSMOS survey to higher fluxes and are fully consistent with the Euclidean expectation. We constrain the intrinsic luminosity function of AGN in the 2-10 keV energy band where the unabsorbed X-ray flux is estimated from the X-ray spectral fit up to z=3. Finally, we demonstrate the presence of a supercluster size structure at redshift 0.14, identified by means of percolation analysis of the XXL-1000-AGN sample. The XXL survey, reaching a medium flux limit and covering a wide area is a stepping stone between current deep fields and planned wide area surveys.
description: 29 pages, 20 figures, 120 figures in the appendix, accepted for publication in A&A
Assessment of Solar Cell Parameters Extraction Methods through Temperature Dependent Current-Voltage Measurements
Creators: name: Lmai, F.
name: Denis, J.-C.
name: Darga, A.
name: Connolly, J.P.
name: Mencaraglia, D.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 524-527
description: The cell parameters corresponding to the classical DC single diode model with series and shunt
resistances are extracted thanks to current versus voltage characteristics analysis. We have implemented with Matlab
two different methods recently proposed in the literature. The first method, which is exact, is based on the use of the
Lambert function to solve analytically the non-explicit equation describing the electrical equivalent circuit . The
second method, which is an approximate one, consists in separating the I-V characteristics into two parts, a linear and
an exponential one to derive the parameters which are the most significant for each zone. A third method has also
been used with a variational least squares minimisation over all data points. We have applied these extraction
methods to I (V, T) measurements performed at different temperatures and we have analyzed the temperature
evolution of the 4 extracted parameters of a crystalline silicon solar cell under dark conditions (series and parallel
resistance, saturation current density and ideality factor of the diode). This gives us insight on the electronic transport
in the solar cell. We discuss the validity range of a single diode model and we establish the complementarity of these
methods over a range of temperatures.
Gait recognition for person re-identification
Creators: name: Elharrouss, Omar
name: Almaadeed, Noor
name: Al-Maadeed, Somaya
name: Bouridane, Ahmed
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Information systems
Electronics, sensors and digital hardware

description: Person re-identification across multiple cameras is an essential task in computer vision applications, particularly tracking the same person in different scenes. Gait recognition, which is the recognition based on the walking style, is mostly used for this purpose due to that human gait has unique characteristics that allow recognizing a person from a distance. However, human recognition via gait technique could be limited with the position of captured images or videos. Hence, this paper proposes a gait recognition approach for person re-identification. The proposed approach starts with estimating the angle of the gait first, and this is then followed with the recognition process, which is performed using convolutional neural networks. Herein, multitask convolutional neural network models and extracted gait energy images (GEIs) are used to estimate the angle and recognize the gait. GEIs are extracted by first detecting the moving objects, using background subtraction techniques. Training and testing phases are applied to the following three recognized datasets: CASIA-(B), OU-ISIR, and OU-MVLP. The proposed method is evaluated for background modeling using the Scene Background Modeling and Initialization (SBI) dataset. The proposed gait recognition method showed an accuracy of more than 98% for almost all datasets. Results of the proposed approach showed higher accuracy compared to obtained results of other methods result for CASIA-(B) and OU-MVLP and form the best results for the OU-ISIR dataset.Other Information Published in: The Journal of Supercomputing
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s11227-020-03409-5
Pressure type metrics on spaces of metric graphs
Creators: name: Kao, Lien-Yung
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this note, we consider two Riemannian metrics on a moduli space of metric graphs. Each of them could be thought of as an analogue of the Weil-Petersson metric on the moduli space of metric graphs. We discuss and compare geometric features of these two metrics with the "classic" Weil-Petersson metric in Teichmüller theory. This paper is motivated by Pollicott and Sharp's earlier work.
description: 25 pages and 12 figures
Investigation of Photovoltaic Devices Crystallization in MOCVD with In-Situ Monitoring
Creators: name: Kalyuzhnyy, N.A.
name: Mintairov, S.A.
name: Mintairov, M.A.
name: Lantratov, V.M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
Fundamental Studies

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 538-544
description: The opportunity for successful applying a combination of reflectance (R) and reflectance anisotropy
spectroscopy (RAS) in-situ methods for comprehensive analysis of multijunction solar cell (MJ SC) structures grown
by MOCVD has been demonstrated. It was shown that in-situ RAS measurements can be used for determining the
ordering degree and doping level in the GaInP2 layers grown on both GaAs and Ge substrates. The influence of
different growth conditions (temperature, V-III ratio, doping, substrate’ type) on GaInP2 ordering has been studied
combined by in-situ RAS and ex-situ photoluminescence (PL) and a good agreement between results obtained by
both methods was shown. Linear electro-optical (LEO) effect in Si and Zn doped GaInP2 layers grown on both GaAs
and Ge wafers has been studied and calibration reflectance anisotropy (RA) signal dependencies have been obtained.
In-situ research of doped Ga(In)As layers has been carried out and main features in RA spectra behavior at critical
point of dielectric function has been reveled at growth temperatures. GaInP2/Ge interface roughness has been
estimated by the RA transients during MJ SC structures growing. Correlation between structure surface morphology
and RA signal value on the heterointerface has been found.
The effects of a negative economic shock on male marriage in the West Bank
Creators: name: Ragab, Amr
name: Saad, Ayhab F.
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: subject: Applied economics
subject: Sociology
subject: FOS: Sociology

description: This study examines how a large negative economic shock impacts marriage rates for young men in the West Bank. Utilizing data from before and after the sudden and abrupt closure of the Israeli labor market for Palestinian commuters from the West Bank in 2001, our empirical design employs a difference-in-difference strategy and uses the variations in localities’ exposure to the Israeli labor market before the shock. The closure reduced the employment and income of adult men asymmetrically across localities. Our findings show that the closure caused a reduction in marriage rates among young men aged 19 to 29 years, as post-shock changes in marriage rates. Our results suggest that the adverse effect of the economic shock on male marriage is mediated through a combination of rising youth unemployment and rigid expectations about marriage costs.Other Information Published in: Review of Economics of the Household
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s11150-022-09615-9
Health-related quality of life and its predictors among adults living with HIV/AIDS and receiving antiretroviral therapy in Pakistan
Creators: name: Ahmed, Ali
name: Saqlain, Muhammad
name: Bashir, Naila
name: Dujaili, Juman
name: Hashmi, Furqan
name: Mazhar, Faizan
name: Khan, Amjad
name: Jabeen, Musarat
name: Blebil, Ali
name: Awaisu, Ahmed
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Public health

description: Background Health-related quality of life (HRQoL) is considered to be the fourth 90 of UNAIDS 90-90-90 target to monitor the effects of combination antiretroviral therapy (ART). ART has significantly increased the life expectancy of people living with HIV/AIDS (PLWHA). However, the impact of chronic infection on HRQoL remains unclear, while factors influencing the HRQoL may vary from one country to another. The current study aimed to assess HRQoL and its associated factors among PLWHA receiving ART in Pakistan. Methods A cross-sectional descriptive study was conducted among PLWHA attending an ART centre of a tertiary care hospital in Islamabad, Pakistan. HRQoL was assessed using a validated Urdu version of EuroQol 5 dimensions 3 level (EQ-5D-3L) and its Visual Analogue Scale (EQ-VAS). Results Of the 602 patients included in the analyses, 59.5% (n = 358) reported no impairment in self-care, while 63.1% (n = 380) were extremely anxious/depressed. The overall mean EQ-5D utility score and visual analogue scale (EQ-VAS) score were 0.388 (SD: 0.41) and 66.20 (SD: 17.22), respectively. Multivariate linear regression analysis revealed that the factors significantly associated with HRQoL were: female gender; age > 50 years; having primary and secondary education; > 1 year since HIV diagnosis; HIV serostatus AIDS-converted; higher CD 4 T lymphocytes count; detectable viral load; and increased time to ART. Conclusions The current findings have shown that PLWHA in Pakistan adherent to ART had a good overall HRQoL, though with significantly higher depression. Some of the factors identified are amenable to institution-based interventions while mitigating depression to enhance the HRQoL of PLWHA in Pakistan. The HRQoL determined in this study could be useful for future economic evaluation studies for ART and in designing future interventions.Other Information Published in: Quality of Life Research
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s11136-021-02771-y
Using social capital to develop South African principals and schools
Creators: name: Romanowski, Michael H.
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Education systems

description: One feature of deprived communities is a lack of social capital. Yet, research reports that social capital contributes to poverty reduction and positively impacts schools and student educational outcomes. In South Africa, there is a deficit in social capital in under-resourced and underperforming schools that limits students’ educational opportunities and achievement. Partners for Possibility (PfP) responds to the lack of social capital in South African schools by partnering school principals and business leaders to develop support structures such as collaboration, networking, and professional learning communities. Findings from a site visit, conversational interviews, and examining participants’ portfolios indicate that PfP provides opportunities for developing three types of social capital: structural, cognitive, and relational. These produce options that would otherwise be unavailable to these students. The discussion raises issues about social capital as a resource for development and offers suggestions for further research.Other Information Published in: PROSPECTS
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s11125-022-09602-z
Performance assessment in education for sustainable development: A case study of the Qatar education system
Creators: name: Al-Kuwari, Mona M.
name: Du, Xiangyun
name: Koç, Muammer
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Education systems

description: Various studies show that sustainability and education are closely interdependent. Design and implementation of the right performance assessment for students’ skills acquisition and achievements is, therefore, critical for achieving the Sustainable Development Goals (SDGs). This article presents an in-depth analysis of the Qatar education system (K-12 level), focusing on the current assessment approaches and remaining challenges that hinder the development and implementation of proper performance-assessment methods aligned with SDGs. Based on a proposed theoretical framework influenced by the constructive alignment theory, this article examines the current performance assessment practices in Qatar and recommends potential improvement avenues with respect to SDGs and education goals (EGs). Using this framework as an analytical tool, results reveal a lack of alignment between the assessment practices, educational goals, and the SDGs. This work shows that tailored, contextually proper, and progressive assessment strategies need to be developed to accurately evaluate and guide the twenty-first-century skills of the students toward the achievement of SDGs. Further findings of this article concern presentation and discussion of the locally relevant and consistent recommendations for performance assessment methodologies that must be redesigned to be compatible, aligned, and supporting the SDGs and EGs.Other Information Published in: PROSPECTS
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s11125-021-09570-w