cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Understanding system-focused barriers to the identification and reporting of medication errors and adverse drug events in emergency medical services
Creators: name: Howard, Ian
name: Castle, Nicholas
name: Al Shaikh, Loua
name: Jesaimani, Ameena
name: Owen, Robert
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Pharmacology and pharmaceutical sciences

description: Emergency medical services (EMS) represent an important and increasingly used entry point into the healthcare system. These services are often provided in the backdrop of challenging environments, with few diagnostic resources available, and for patients of varying acuity. As a result, the potential for medication errors (MEs) and adverse drug events (ADEs) is significant. However, the identification and reporting of these occurrences is poorly understood. A healthcare failure mode and effects analysis was conducted at the Hamad Medical Corporation Ambulance Service, Qatar, to identify and mitigate potential system-focused barriers to the identification and reporting of ADEs and MEs in the EMS setting. Between May 2018 and July 2018, a process map and potential failure points were developed and identified. Probabilities, severity, and hazard scores were calculated for each failure point, and action items were developed to address these. In total, 110 potential failure points were identified among 22 sub-processes, divided between six major processes. In terms of severity, most were classified as either ‘moderate’ [n = 90 (80%)] or ‘major’ [n = 14 (13%)]. In terms of probability, failure points classified as ‘frequent’ [n = 39 (35%)] and ‘occasional’ [n = 38 (35%)] made up the majority. Through consensus, 76 failure points (69%) were deemed necessary for action. Five strategic-level, system-focused action items were identified to mitigate against the failure points meeting the criteria for action. The unique circumstances that occur within the EMS setting dictate that bespoke solutions be developed to allow for ease of implementation and ongoing success of use. Strategies that also take advantage of mobile technology are crucial for a service that has mobility as one of its core functions.Other Information Published in: Drugs & Therapy Perspectives
 License: https://creativecommons.org/licenses/by-nc/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s40267-019-00628-6
Comparative Performance Measurements of Identical BIPV-Elements in Different Climatic Environments - A Round Robin Action within the IEA PVPS Task 15 Collaboration
Creators: name: Illich, P.
name: Eder, G.C.
name: Berger, K.A.
name: Újvári, G.
name: Rechberger, P.
name: Moor, D.
name: Aichinger, M.
name: Boddaert, S.
name: Valckenborg, R.M.E.
name: Van Den Brand, J.
name: Bonomo, P.
name: Frontini, F.
name: Polo López, C.S.
name: Del Buono, M.
name: Imenes, A.G.
name: Martín Chivelet, N.
name: Chenlo, F.
name: Sanz Martinez, A.
name: Machado, M.
name: Kim, J.-T.
name: Masolin, A.
name: Ritzen, M.
Publisher: name: WIP
Year: 2018
Subjects: PV Systems - Performance, Applications and Integration
Building, Infrastructure, Landscape and Other Applications of PV

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1794-1800
description: This paper results from an on-going activity within the IEA PVPS Task 15 – Enabling Framework for the Acceleration of Building Integrated Photovoltaics (BIPV). It evaluates the performance of identical and commercially available glass/glass BIPV-elements installed in outdoor test sites at different climatic environments. These c-Si test-modules resemble those modules built in the façade of an existing reference building in Linz, Austria, and are mounted reproducing similar boundary conditions. The reference BIPV façade is currently under operation and has been monitored for more than 10 years. In total, the experiment involves 9 participants from 7 countries in Europe and Asia. Accorded monitoring method and constructive boundaries allow for the analysis of the influence of geographical and climatic conditions on the performance of the BIPV elements and can be related to the pre- and post-installation measurement results under STC conditions in a reference lab. From the experimental design of this work, it is possible to compare the performance results of a commercially available type of glass/glass BIPV elements installed in the façade of a building with those installed and monitored in outdoor-sites and measured under laboratory conditions. Furthermore, the reliability results under natural ageing conditions (high rise building with BIPV façade) are compared to those obtained after accelerated ageing in the laboratory.
At this point, (incomplete) monitoring data of only six modules could be used for the first analysis. Thus, a detailed description of the the experimental design, the technical data of the laboratories, test sites and reference building and the current status of data analysis is presented.
Mobile Robots Adaptive Control Using Neural Networks
Creators: name: Dumitrache, Ioan
name: Dragoicea, Monica
Publisher: name: arXiv
Year: 2015
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The paper proposes a feed-forward control strategy for mobile robot control that accounts for a non-linear model of the vehicle with interaction between inputs and outputs. It is possible to include specific model uncertainties in the dynamic model of the mobile robot in order to see how the control problem should be addressed taking into consideration the complete dynamic mobile robot model. By means of a neural network feed-forward controller a real non-linear mathematical model of the vehicle can be taken into consideration. The classical velocity control strategy can be extended using artificial neural networks in order to compensate for the modelling uncertainties. It is possible to develop an intelligent strategy for mobile robot control.
Neurokinin 1 Receptor Antagonists for Pruritus
Creators: name: Alam, Majid
name: Buddenkotte, Joerg
name: Ahmad, Fareed
name: Steinhoff, Martin
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Pharmacology and pharmaceutical sciences

description: Pruritus, commonly known as itch, is a very common symptom in numerous dermatological disorders and systemic diseases. It can manifest as acute, or when lasting longer than 6 weeks, it is considered chronic and can lead to significant distress and reduced quality-of-life of those suffering. Current therapeutics are limited and are lacking in efficacy, and the development of more effective treatments is needed. The neurokinin 1 receptor (NK1R) antagonists are a novel class of drugs that possess several properties such as antidepressant, anxiolytic and antiemetic activities. Recently, several studies have described the antipruritic activity of NK1R antagonists for treating chronic pruritus. In this review we outline the pathogenesis of chronic pruritus, the mechanism by which the neuropeptide substance P (SP) and its receptor NK1R may be targeted to inhibit pruritic activity, and the efficacy and tolerability of NK1R antagonists, which have been, or are currently being investigated for treating conditions where chronic pruritus is a major symptom. Increasing evidence from ongoing and completed studies demonstrates the importance of SP and NK1R signalling in mediating pruritic activity. Several NK1R antagonists have shown significant antipruritic activity and thus targeting the SP-NK1R pathway may provide a therapeutic option for treating chronic pruritus of certain origin/s in the foreseeable future.Other Information Published in: Drugs
 License: https://creativecommons.org/licenses/by-nc/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s40265-021-01478-1
Electric multipole response of the halo nucleus $^6$He
Creators: name: Singh, Jagjit
name: Fortunato, L.
name: Vitturi, A.
name: Chatterjee, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The role of different continuum components in the weakly-bound nucleus $^6$He is studied by coupling unbound spd-waves of $^5$He by means of simple pairing contact-delta interaction. The results of our previous investigations in a model space containing only p-waves, showed the collective nature of the ground state and allowed the calculation of the electric quadrupole transitions. We extend this simple model by including also sd-continuum neutron states and we investigate the electric monopole, dipole and octupole response of the system for transitions to the continuum, discussing the contribution of different configurations.
description: 22 pages, 10 figures
Prophylactic Sildenafil in Preterm Infants at Risk of Bronchopulmonary Dysplasia: A Pilot Randomized, Double-Blinded, Placebo-Controlled Trial
Creators: name: Abounahia, Fouad F.
name: Abu-Jarir, Rawia
name: Abounahia, Mohamed F.
name: Al-Badriyeh, Daoud
name: Abushanab, Dina
name: Abu-Ghalwa, Mahmoud
name: Mansour, Ashraf
name: Kurdi, Bader
name: Al-Rifai, Hilal
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Pharmacology and pharmaceutical sciences
Paediatrics

description: Bronchopulmonary dysplasia (BPD) is the need for oxygen therapy at 36 weeks postmenstrual age (PMA). Sildenafil has been shown to enhance the lung alveolarization and vascularization in newborn animal models after lung injury and has possible therapeutic potential for the prevention of BPD. To perform a proof-of-concept, Phase II, pilot randomized, double-blind, clinical trial to study the efficacy of sildenafil in preventing BPD, in postnatal (< 24 h), extremely and very preterm infants. This Phase II, pilot randomized, double-blind, clinical trial was conducted in the Neonatal Intensive Care Unit of Women’s Wellness and Research Center, Doha, Qatar during 2012–2014. Infants of 240/7–296/7 weeks’ gestation were eligible if they needed respiratory or oxygen support ≥ 25% at randomization, and if they were at a postnatal age of < 24 h at randomization. Forty preterm infants were randomly assigned to receive off-label oral sildenafil (0.5 mg/kg every 6 h) or a placebo solution, for one week. The primary endpoints were the incidence of BPD and death at 36 weeks PMA, and the side effects. Secondary outcomes included the incidence of BPD and the respiratory support at day 28 of life, duration of oxygen use, fraction of inspired oxygen use at 36 weeks and 28 days of life, duration of hospitalization, and the incidence of significant retinopathy of prematurity, severe intraventricular hemorrhage, periventricular leukomalacia, necrotizing enterocolitis, patent ductus arteriosus, and late sepsis. No significant differences were observed between the sildenafil and placebo study groups in mortality at 36 weeks PMA (10% vs 20%, p = 1), respiratory support at 36 weeks (30% vs 25%, p = 0.57), and side effects (0% vs 0%). For all other secondary outcomes, no significant differences were detected. While not associated with side effects, off-label oral sildenafil did not demonstrate benefits in the prevention of BPD or death in the extreme and very preterm infants. Future studies of dosing and efficacy that target different regimens of sildenafil are warranted before sildenafil is recommended for the prevention of BPD.Other Information Published in: Clinical Drug Investigation
 License: https://creativecommons.org/licenses/by-nc/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s40261-019-00834-0
Using the Hot Air under a Building Integrated PV Roof in Combination with a Ventilation Heat Pump to Realise Energy Efficient Dwellings
Creators: name: De Keizer, C.
name: Valckenborg, R.M.E.
name: Borro, R.
name: Laureijssen, M.
name: Folkerts, W.
Publisher: name: WIP
Year: 2018
Subjects: PV Systems - Performance, Applications and Integration
Building, Infrastructure, Landscape and Other Applications of PV

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1818-1820
description: In this paper, we describe and evaluate a ventilated BIPV(T) system that could be used in combination
with a ventilation heat pump to realise energy efficient dwellings. European regulations are aiming at (near) zeroenergy
buildings in the near future. Since a large share of the energy demand in the built environment in continental
Europe consists of heat, the combination of both solar heat and solar electricity production in one roof is an interesting
option to increase the share of renewable energy. We modeled the ventilated BIPV system and validated the model
with a field test. In the field test we also tested the impact of several measures to improve the generation of useful heat,
like fins and flow patterns.
The BIPVT/ventilation heat pump concept consists of: a prefab building integrated PV element that includes insulation
and a modified ventilation heat pump. Traditionally, a ventilation heat pump uses the source heat from the ventilation
air of a dwelling. The heated air under the PV panels could potentially supply a larger share of the source heat that
would be required to supply the full heat demand for space heating and domestic hot water.
Assessment of Error Sources in the Modeling of POA Irradiance under Clear-Sky Conditions
Creators: name: Xie, Y.
name: Sengupta, M.
Publisher: name: WIP
Year: 2018
Subjects: PV Systems - Performance, Applications and Integration
Solar Resource and Forecasting

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1763-1766
description: A new physics-based model, the Fast All-sky Radiation Model for Solar applications with Narrowband
Irradiances on Tilted surfaces (FARMS-NIT), accurately computes plane-of-array (POA) irradiances in both narrowand
broad wavelength bands within the solar region. The evaluation studies suggest the new model provide more
accuracy than a model assuming isotropic diffuse solar radiation and an empirical model linking the POA irradiances
with long-term surface observations at selected locations. This study anlyzes the surface observations used by FARMSNIT
and is intended to understand the error sources under clear-sky conditions as well as their impact to the performance
of FARMS-NIT.
Toward a W4-F12 approach: Can explicitly correlated and orbital-based ab initio CCSD(T) limits be reconciled?
Creators: name: Sylvetsky, Nitai
name: Peterson, Kirk A.
name: Karton, Amir
name: Martin, Jan M. L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In the context of high-accuracy computational thermochemistry, the valence CCSD correlation component of molecular atomization energies present the most severe basis set convergence problem, followed by the (T) component. In the present paper, we make a detailed comparison, for an expanded version of the W4-11 thermochemistry benchmark, between on the one hand orbital-based CCSD/AV{5,6}Z+d and CCSD/ACV{5,6}Z extrapolation, and on the other hand CCSD-F12b calculations with cc-pVQZ-F12 and cc-pV5Z-F12 basis sets. This latter basis set, now available for H--He, B--Ne, and Al--Ar, is shown to be very close to the basis set limit. Apparent differences (which can reach 0.35 kcal/mol for systems like CCl4) between orbital-based and CCSD-F12b basis set limits disappear if basis sets with additional radial flexibility, such as ACV{5,6}Z, are used for the orbital calculation. Counterpoise calculations reveal that, while TAEs with V5Z-F12 basis sets are nearly free of BSSE, orbital calculations have significant BSSE even with AV(6+d)Z basis sets, leading to non-negligible differences between raw and counterpoise-corrected extrapolated limits. This latter problem is greatly reduced by switching to ACV{5,6}Z core-valence basis sets, or simply adding an additional zeta to just the valence orbitals. Previous reports that all-electron approaches like HEAT lead to different CCSD(T) limits than valence limit+CV correction approaches like FPD and W4 theory can be rationalized in terms of the greater radial flexibility of core-valence basis sets. W4-F12 is found to agree slightly better than W4 with ATcT (active thermochemical tables) data, at a substantial saving in CPU time and especially I/O overhead. A W4-F12 calculation on benzene is presented as a proof of concept.
description: Journal of Chemical Physics, in press
The Evolution of Emotional Relationships Between Humansand Artificial Intelligence: Exploring the Possibility of MutualLove Between Humans and Robots
Creators: name: Elhelaly, Yousef
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 440701
subject: Communications and media policy
classificationCode: 401002
subject: Engineering education
classificationCode: 460806
subject: Human-computer interaction
classificationCode: 460201
subject: Artificial life and complex adaptive systems
classificationCode: 460299
subject: Artificial intelligence not elsewhere classified

description: This research explores the evolving dynamics of emotional relationshipsbetween humans and artificial intelligence, specifically examining the possibility ofmutual love between humans and robots. As artificial intelligence and roboticsbecome increasingly integrated into daily life, understanding the emotional potentialof these technologies is essential. The study aims to investigate whether robots,equipped with advanced AI, can develop emotional connections with humans thatparallel traditional human relationships.The research begins by reviewing the role of technology in shaping humanrelationships throughout history, with a focus on the impact of AI on emotionalinteractions. It then delves into the capabilities of AI systems to simulate emotionsand the psychological factors that might lead humans to develop genuine feelings oflove toward these entities. Furthermore, the study examines existing psychologicaltheories on love and attachment, applying them to the context of human-robotinteractions.Ethical and technical challenges are also discussed, highlighting the potentialconsequences of developing AI systems capable of fostering emotional bonds. Theresearch concludes with recommendations for AI developers on how to ethically andresponsibly approach the creation of AI that can engage in emotionally meaningfulinteractions with humans.This research contributes to the growing body of knowledge on human-AIrelationships, offering insights into the future of emotional interactions betweenhumans and machines.
A Modular Stand-Alone Photocatalytic Reactor for Waste Water Purification: The HPSolar Project
Creators: name: Bernardoni, P.
name: Boschetti, M.
name: Mangherini, G.
name: Vincenzi, D.
name: Fugattini, S.
name: Andreoli, A.
name: Cristino, V.
name: Caramori, S.
name: Bignozzi, C.A.
Publisher: name: WIP
Year: 2018
Subjects: PV Systems - Performance, Applications and Integration
Grid and Energy System Integration

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1750-1753
description: In this work we present the construction and performances of a photocatalytic reactor developed for the HPSolar project, the purpose of this reactor is the treatment of water in order to remove pollutants like drugs or pesticides that are not removed effectively by present water treatments.
The reactor is modular and composed by multiple elementary cells where the photocatalyst is a thin layer of tungsten trioxide biased positively with respect to a metallic cathode; this polarization is switched periodically in order to restore the functionality of the anode.
The cells are completely self-reliant because are powered by four solar cells laying behind the semi-transparent anode while a microcontroller integrated into each cell applies the biasing cycles.
The abatement measurements on atenolol and carbamazepine show that this device can remove 70% of the drugs from a sample of water within 5 and 7 hours respectively.
Occurrence and removal characteristics of phthalate esters from bottled drinking water using silver modified roasted date pits
Creators: name: Alhaddad, Fedae A.
name: Abu-Dieyeh, Mohammed
name: Da’ana, Dana
name: Helaleh, Murad
name: Al-Ghouti, Mohammad A.
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: subject: Environmental engineering
subject: FOS: Environmental engineering
subject: Public health

description: Background This paper aims to investigate the occurrence and removal characteristics of phthalate esters from bottled drinking water using silver modified roasted date pits. Three adsorbents, namely roasted date pits (RODP), silver-modified roasted date pits (S-RODP), and activated carbon (AC) were used to investigate their adsorption characterizations in removing dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP), butyl benzyl phthalate (BBP), di-2-ethylhexyl phthalate (DEHP), and di-n-octyl phthalate (DNOP) from the collected bottle water samples. Methods The occurrences of the phthalate esters in the collected bottled water samples were carried out at different temperatures (30, 50, and 60 °C), and analyzed using gas chromatography-mass spectrometry analysis - selected ion monitoring. Batch adsorption isotherms were used to study and establish the efficiency of such adsorbents in removing phthalate esters, in which they describe the adsorbent-adsorbate interaction systems. Adsorption efficiency of the various adsorbents was investigated by using different adsorbent masses (0.05 g, 0.10 g, and 0.15 g) and temperature (30 °C, 50 °C, and 60 °C). Different physical and chemical characterizations were studied using scanning electron microscopy (SEM), Fourier transform infrared (FTIR), Brunauer-Emmett-Teller (BET) surface area, pore radius, and pore volume. Results The results indicated that the most abundant phthalate esters were DMP followed by DEP under 30 °C; however, DNOP was not detected in any of the tested water samples, except for one sample under 30 °C with a concentration of 0.031 μg/mL. The obtained results showed that phthalate esters leaching to the bottled drinking water were affected by storage temperature. The phthalate esters levels were increased with increasing the temperature to 60 °C. It was concluded that the ability of S-RODP for the adsorption of phthalate esters was better than the removal percentage obtained by AC and RODP. The removal percentage was increased from 90 to 99% by increasing the temperature from 30 to 50 °C and then decreased to 92.3% at 60 °C. Conclusion RODP was successfully used as an effective adsorbent for phthalate esters removal from drinking water. However, S-RODP has the highest removal abilities than other adsorbents due to the newly formed functional groups on its surface.Other Information Published in: Journal of Environmental Health Science and Engineering
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s40201-021-00642-9
Really Building with BIPV - Putting the Foundation in Place for a Successful Dutch BIPV Sector (The ‘Werkelijk Bouwen aan BIPV’ Project)
Creators: name: De Vries, A.
name: Kahn, A.
name: Comuth, R.
name: Van Deursen, A.
name: Arninkhof, M.
name: Verpaalen, G.
name: Maas, C.
name: Kin, S.
name: De Jong, P.
name: Van De Wall, W.
name: Vroon, Z.
name: Kuypers, A.
name: Kester, J.C.P.
name: Valckenborg, R.M.E.
name: Van Sark, W.G.J.H.M.
name: Loonen, R.
name: Aartsma, Y.
name: Van Straten, I.
name: Teunissen, E.
Publisher: name: WIP
Year: 2018
Subjects: PV Systems - Performance, Applications and Integration
Building, Infrastructure, Landscape and Other Applications of PV

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1782-1784
description: The main result of this project is the organisation of a strong BIPV market and supply chain, to encourage knowledge sharing, and successful business development by collaboration of (SMEs) businesses, R&D knowledge institutions and the solar- and building associations. This should result in a significant increase in the use of BIPV in building projects in Netherlands, and as a result in economic growth. The project runs from 2017 until the end of 2020, and is a follow-up to the national BIPV Roadmap issued in early 2016.
Two-Dimensional Transition Metal Dichalcogenides with a Hexagonal Lattice: Room Temperature Quantum Spin Hall Insulators
Creators: name: Ma, Yandong
name: Kou, Liangzhi
name: Li, Xiao
name: Dai, Ying
name: Heine, Thomas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: So far, several transition metal dichalcogenides (TMDCs) based two-dimensional (2D) topological insulators (TIs) have been discovered, all of them based on a tetragonal lattice. However, in 2D crystals, the hexagonal rather than the tetragonal symmetry is the most common motif. Here, based on first-principles calculations, we propose a new class of stable 2D TMDCs of composition MX2 (M=Mo, W, X=S, Se, Te) with a hexagonal lattice. They are all in the same stability range as other 2D TMDC allotropes that have been demonstrated experimentally, and they are identified to be practical 2D TIs with large band gaps ranging from 41 to 198 meV, making them suitable for applications at room-temperature. Besides, in contrast to tetragonal 2D TMDs, their hexagonal lattice will greatly facilitate the integration of theses novel TI states van-der-Waals crystals with other hexagonal or honeycomb materials, and thus provide a route for 2D-material-based devices for wider nanoelectronic and spintronic applications. The nontrivial band gaps of both WSe2 and WTe2 2D crystals are 198 meV, which are larger than that in any previously reported TMDC-based TIs. These large band gaps entirely stem from the strong spin-orbit coupling strength within the d orbitals of Mo/W atoms near the Fermi level. Our findings will significantly broaden the scientific and technological impact of both 2D TIs and TMDCs.
Utilization of nano-olive stones in environmental remediation of methylene blue from water
Creators: name: Al-Ghouti, Mohammad A.
name: Dib, Samah S.
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: subject: Environmental engineering
subject: FOS: Environmental engineering
subject: Public health

description: Background The use of agricultural waste as a low-cost adsorbent for the removal of hazardous methylene blue (MB) from aqueous solution was investigated. In this research, the potentiality of using black nano olive stones (black NOS) and green nano olive stones (green NOS) for MB adsorption was conducted. Methods Various remediation parameters such as initial MB concentration, pH, and temperature were investigated. Thermodynamic study was carried out to determine the homogeneity of the adsorbent and spontaneity of the adsorption process. Different physical and chemical characterizations were studied using scanning electron microscopy (SEM), Fourier transform infrared (FTIR), Brunauer-Emmett-Teller (BET) surface area, pore radius and pore volume. Results It was found that NOS exhibits an acidic nature, however the highest MB removal efficiency was recorded at pH 10; reaching up to 71%. The negative value of the heat of the adsorption process (∆H ° ) indicated the reaction followed an exothermic pathway while the negative value of Gibbs adsorption (∆G ° ) further suggested its spontaneous nature. The results indicated that the Freundlich model described well the adsorption process with 99.5% correlation coefficient for green NOS. FTIR was used to analyze functional groups on the adsorbents’ surfaces that could play vital roles in the remediation process. SEM analysis revealed that the adsorbents comprised of abundant spherical deep cavities and porous nature. Conclusion The result obtained successfully demonstrated the potential of using black and green NOS as suitable adsorbents for the removal of MB from water.Other Information Published in: Journal of Environmental Health Science and Engineering
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s40201-019-00438-y
Analysing the Voltage Stability of Photovoltaic Inverters Reactive Power Control in the Laboratory Including the Distribution GRID Transformer
Creators: name: Baumgartner, F.P.
name: Messner, C.
name: Seitl, C.
name: Lauss, G.
name: Carigiet, F.
name: Bründlinger, R.
name: Strasser, T.I.
Publisher: name: WIP
Year: 2018
Subjects: PV Systems - Performance, Applications and Integration
Grid and Energy System Integration

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1754-1759
description: Photovoltaic (PV) inverters increase the line voltage in Distribution Grids (DG) by active power feed in. Today, modern
PV inverters are also able to feed in reactive power to mitigate the above voltage rise. The favoured, cost effective
implementation is the control of reactive power feed in according to the instantaneous measured line voltage. The
stability of this decentralised Q(U) PV inverter closed-loop control is mandatory and analysed in this work. The DG
operator must guarantee the voltage limits given in the regulatory framework. This is challenging due to fast changing
solar irradiance, load flows and the interaction of an overlying automatic voltage control-loop of a connected substation.
The performed tests in the AIT SmartEST laboratory resulted in very stable operation even at small Time
Constants (TC) below 5 seconds of the Q(U) control parameter. As one test scenario, an abrupt rise of solar irradiance
immediately followed by load drop is realized by use of the PV and load emulators. The PV inverter reduces the
resulting voltage rise by increasing its reactive power, depending on the Q(U) control time constant.
It was found that even at smaller Q(U) time constants than the typical applied values of 5 or 10 seconds no sign of
instability arises. It is recommended to the DG operator to apply TC of 1 or 2 seconds of Q(U) control to minimise the
duration of overvoltage condition during the transient voltage adjustment. Applying irradiance conditions of a typical
cloudy day in the lab test yields 45% of the time the line voltage was above a given grid voltage limit, while applying
Q(U) at TC of 1 second there was no occurrence of overvoltage. In detail at Q(U) TC setting of 20 seconds the overvoltage
arises 3.4% of the total period and only 0.3% at TC 5 seconds. Only stable operation conditions were found
including the automatic voltage control of the transformer sub-station at a typical setting of 10 seconds delay time of
that sub-station control setting. Summarized, in combination with that delay time setting the smaller Q(U) time constant
of the PV inverters below 5 seconds are beneficial due to the minimised overvoltage time.
Dynamic weakening by acoustic fluidization during stick-slip motion
Creators: name: Giacco, Ferdinando
name: Saggese, Luigi
name: de Arcangelis, Lucilla
name: Lippiello, Eugenio
name: Ciamarra, Massimo Pica
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The unexpected weakness of some faults has been attributed to the emergence of acoustic waves that promote failure by reducing the confining pressure through a mechanism known as acoustic fluidization, also proposed to explain earthquake remote triggering. Here we validate this mechanism via the numerical investigation of a granular fault model system. We find that the stick-slip dynamics is affected only by perturbations applied at a characteristic frequency corresponding to oscillations normal to the fault, leading to gradual dynamical weakening as failure is approaching. Acoustic waves at the same frequency spontaneously emerge at the onset of failure in absence of perturbations, supporting the relevance of acoustic fluidization in earthquake triggering.
The Mediating Impact of IT Capabilities on the Association between Dynamic Capabilities and Organizational Agility: The Case of the Jordanian IT Sector
Creators: name: Awwad, Abdulkareem Salameh
name: Ababneh, Omar Mohammed Ali
name: Karasneh, Mahmoud
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Strategy, management and organisational behaviour

description: This study suggests a novel progression to the current research endeavor by investigating the influence of information technology capabilities on organizational agility. More specifically, this study aims to fill the gaps found in previous studies and contribute to the current state of knowledge of this domain by focusing on the mediating role that IT capabilities play between dynamic capabilities and organizational agility. Toward that end, 270 Jordanian professionals working in supply chain management and operational departments were approached. Data were collected via distrusting a structured questionnaire that includes items assessing dynamic capabilities, IT capabilities, and organizational agility. The results demonstrated that IT capabilities significantly and positively mediated the relationship between resource-based dynamic capability and organizational agility. The study has also discussed several theoretical along with managerial implications of the research.Other Information Published in: Global Journal of Flexible Systems Management
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s40171-022-00303-2
Machine Learning Techniques for Forecasting Single-Site PV Production
Creators: name: Boegli, M.
name: Pierro, M.
name: Moser, D.
name: Alet, P.-J.
Publisher: name: WIP
Year: 2018
Subjects: PV Systems - Performance, Applications and Integration
Solar Resource and Forecasting

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1774-1777
description: The objective of this work is to develop and benchmark data-driven algorithms for the forecasting of PV power production on individual sites. This is necessary for e.g., compliance with regulation and operations on the electricity market. In this paper we present several machine-learning algorithms developed by both CSEM and EURAC Research. Using data from a 662 kWp CdTe PV plant in Bolzano (Northern Italy), we clarified the respective roles of the statistical models and of the numerical weather forecasts in the resulting accuracy. We also evaluated the impact of the availability of weather parameters. We used a one-year dataset of power output measurements and numerical weather forecasts for training (2012) and another one for validation (2013). For this evaluation, we used numerical weather predictions generated by the Integrated forecasting system global model by the European centre for medium-range weather forecasts (ECMWF). Results with support vector regression (SVR)-based techniques showed an RMS error in PV power estimation of 2% with measured weather data as inputs. With weather forecasts as inputs, the RMS error in PV power prediction was 9% (RMSE) with weather data forecast.
An Overview of the Homozygous Cystic Fibrosis Transmembrane Conductance Regulator Mutation c.3700 A>G (p.Ile1234Val) in Qatar
Creators: name: Hammoudeh, Samer
name: Gadelhak, Wessam
name: AbdulWahab, Atqah
name: Al-Langawi, Mona
name: Janahi, Ibrahim A.
Publisher: name: Manara - Qatar Research Repository
Year: 2022
Subjects: Clinical sciences

description: Purpose of Review Cystic fibrosis (CF) is a monogenic recessive disease with multisystem involvement. The cause is a mutation in the gene that encodes the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The aim is to review the literature involving the CFTR I1234V mutation and to provide recommendations for future research activities. Recent Findings The prevalence rates of CFTR mutations vary across the globe. The CFTR I1234V mutation is the most common mutation in Qatar, and one of the most common in the Arabian Gulf region. Summary Areas for future research include testing of the CFTR transcript and activity levels in different samples including nasal cells and organoids. Another area is applying Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) technology as a tool for gene editing.Other Information Published in: Current Genetic Medicine Reports
 License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s40142-019-00174-7
Validation of the Meteonorm Satellite Irradiation Dataset
Creators: name: Müller, S.C.
name: Remund, J.
Publisher: name: WIP
Year: 2018
Subjects: PV Systems - Performance, Applications and Integration
Solar Resource and Forecasting

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1760-1762
description: Global irradiation is the main source for photovoltaic (PV) energy production. The knowledge of the
incoming solar short-wave irradiation is of major importance for the planning, monitoring and operation of solar
energy power plants and grid operations. In this paper we present a validation of the newly developed Meteonorm
Satellite Irradiation (MNSI) dataset for Europe, Middle East and Africa. Uncertainties of 12-25% relative RMSE for
hourly values has been found.
Statistical study of spatio-temporal distribution of precursor solar flares associated with major flares
Creators: name: Gyenge, N.
name: Ballai, I.
name: Baranyi, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The aim of the present investigation is to study the spatio-temporal distribution of precursor flares during the 24-hour interval preceding M- and X-class major flares and the evolution of follower flares. Information on associated (precursor and follower) flares is provided by Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI). Flare List, while the major flares are observed by the Geostationary Operational Environmental Satellite (GOES) system satellites between 2002 and 2014. There are distinct evolutionary differences between the spatio-temporal distributions of associated flares in about one day period depending on the type of the main flare. The spatial distribution was characterised by the normalised frequency distribution of the quantity $δ$ (the distance between the major flare and its precursor flare normalised by the sunspot group diameter) in four 6-hour time intervals before the major event. The precursors of X-class flares have a double-peaked spatial distribution for more than half a day prior to the major flare, but it changes to a lognormal-like distribution roughly 6 hours prior to the event. The precursors of M-class flares show lognormal-like distribution in each 6-hour subinterval. The most frequent sites of the precursors in the active region are within a distance of about 0.1 diameter of sunspot group from the site of the major flare in each case. Our investigation shows that the build-up of energy is more effective than the release of energy because of precursors.
The task of the relativistic oscillator in a non-inertial frame of reference
Creators: name: Perepelkin, E. E.
name: Sadovnikov, B. I.
name: Inozemtseva, N. G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this paper the analogues of the Lorentz transformations for non-inertial reference frames have been obtained. A common case when the movement speed of one coordinate frame in relation to another one can have time derivatives of higher orders. The obtained transformations conserve invariance of the space-time interval, and in the particular case of inertial frames become the well-known Lorentz transformations. It is shown that the transition from classical mechanics to the theory of relativity is analogous to the consideration of the vibrating system described by the equation of the sine-Gordon type. In this case, if the amplitude of the elliptic functions is $k\to 0$ the fluctuations can be considered small, and that leads to classical mechanics. With $k\to 1$ time depends on the vibration amplitude, which leads to the theory of relativity. In the case of inertial frames the amplitude is $k=β={v}/{c}\;$.
description: 12 pages, 2 figures
Optimization of Component Dimensioning for a Combined Heat and Power System with Special Focus on PV Generator Size
Creators: name: Angenendt, G.
name: Zurmühlen, S.
name: Axelsen, H.
name: Wirtz, C.
name: Sauer, D.U.
Publisher: name: WIP
Year: 2018
Subjects: PV Systems - Performance, Applications and Integration
Grid and Energy System Integration

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1706-1713
description: The German energy sector faces a continuous growth of residential PV battery energy storage systems (PV BESS). These systems are applied to enhance the self-consumption rate of domestic photovoltaic systems. The power generated by the PV system can also be used for space heating and domestic hot water (DHW) to contribute to the decarbonisation of the heating sector. Sector coupling of heat and power can be achieved by using heat pump systems. The combined system is capable of providing renewable energy to the household demand for heat and electricity. The economics of these combined systems are the key to increase their market share. The dimensioning of the different system components heavily influences the economics of PV BESS with power and heat coupling. Capital-intensive components such as the PV generator, the BESS, the heat pump, and the thermal storage units play a major role for profitability. Moreover, the thermal and electrical load profile of the residential household as well as the solar radiation profile must be considered to define efficient or optimal component dimensions. This is why an optimization of component sizing is necessary in order to enhance the economics of the system. This paper presents optimization results based on an evolutionary algorithm.
The annuity is used as the target function of the optimization. Additionally, the levelized cost of energy (LCOEnergy) are calculated, to enable an inter-sectorial comparison and an aggregated economic treatment. The levelized cost of energy are determined by calculating the respective levelized cost of electricity (LCOEle) as well as the levelized cost of heat (LCOH).
First optimization results for a household with combined heat and power system show that a system with relatively small storage components compared to the rated power of the PV generator leads to the lowest LCOEnergy. Diminishing subsidies and feed-in tariffs (FIT) have opposite effects on the optimal value for the rated PV power of the system compared to the additional demand from combined heat and power. If the FIT is lower than the generation cost, the PV generators size is mainly depended on load of the integrated home. Overall, the results show that an optimization of the component sizes can increase the economics, but the optimal sizes have to be calculated for every scenario individually.
PT-symmetry breaking in resonant tunneling heterostructures
Creators: name: Gorbatsevich, A. A.
name: Shubin, N. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present fermionic model based on symmetric resonant tunneling heterostructure, which demonstrates spontaneous symmetry breaking in respect to combined operations of space inversion (P) and time reversal (T). PT-symmetry breaking manifests itself in resonance coalescence (collapse of resonances). We show that resonant energies are determined by eigenvalues of auxiliary pseudo-Hermitian PT-invariant Hamiltonian.
description: 4 pages, 2 figures
Degeneracy between Lensing and Occultation in the Analysis of Self-lensing Phenomena
Creators: name: Han, Cheongho
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: More than 40 years after the first discussion, it was recently reported the detection of a self-lensing phenomenon within a binary system where the brightness of a background star is magnified by its foreground companion. It is expected that the number of self-lensing binary detections will be increased in a wealth of data from current and future survey experiments. In this paper, we introduce a degeneracy in the interpretation of self-lensing light curves. The degeneracy is intrinsic to self-lensing binaries for which both magnification by lensing and de-magnification by occultation occur simultaneously and is caused by the difficulty in separating the contribution of the lensing-induced magnification from the observed light curve. We demonstrate the severity of the degeneracy by presenting example self-lensing light curves suffering from the degeneracy. We also present the relation between the lensing parameters of the degenerate solutions. The degeneracy would pose as an important obstacle in accurately determine self-lensing parameters and thus to characterize binaries.
description: 5 pages, 7 figures
Stability and Space Phase Analysis in f(R) theory with Generalized Exponential model
Creators: name: Boko, R. D.
name: Houndjo, M. J. S.
name: Tossa, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We have studied in this paper, the stability of dynamical system in $f(R)$ gravity. We have considered the $f(R)$ $γ$-gravity and explored its dynamical analysis. We found six critical points among which only one describes an universe fulled of both matter and dominated dark energy. It's shown that these critical points presents specific phase spaces described by the corresponding fluids. Furthermore, we've investigated the stability conditions of these critical points and find that theses conditions are dependent of the model parameters. We also study the stability of a new power-law $f_\ast(R)$ model with de Sitter and power law solutions.
description: 16 pages and 6 figures, version accepted for publication in IJMPD