cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Synthesis, Characterization and Antibacterial Investigation of Mononuclear Copper (II) Complexes of Amine-phenolate Based Ligands
Creators: name: Jindal, Ambika
name: Kapoor, Sumeet
name: Verma, Indresh
name: Raju, Anish
name: Arora, Himanshu
name: Tyagi, Priyanka
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified

description: The antibacterial activities of two previously reported copper (II) coordination complexes [Cu(HL1)Cl2] and [Cu(HL2)Cl2], and the two new complexes [Cu(HL3)Cl2] and [Cu(HL4)Cl2], where HL1 is 2-(((pyridin-2-ylmethyl)amino)methyl)phenol, HL2 is 2-((benzyl(pyridine-2-ylmethyl)amino)methyl)phenol, HL3 is 2-(((pyridin-2-ylethyl)amino)methyl)phenol and HL4 is 2-(((pyridin-2-ylmethyl)(quinolin-2-ylmethyl)-amino)methyl)phenol were investigated using agar well plate diffusion assay. The ligands were characterized using elemental analysis, IR, 1H-NMR, 13C-NMR spectroscopy and thermal analysis. The corresponding copper (II) complexes of each ligand were synthesized and characterized using elemental analysis, FT-IR and UV-Visible spectroscopy, electronic spectra and magnetic moment measurements, and thermal analysis. Additionally, a thorough investigation of the copper complexes as potent drug candidates was performed using web-based software SwissADME to predict their physicochemical and pharmacokinetics properties. All copper complexes were stable to air and moisture and showed excellent stability up to 200 °C. Electronic spectra of all copper complexes in methanol consisted of single band at 14,490–15,260 cm−1 depicting ligand field excitation (Cu (II) d–d band). Ligands were completely ineffective on gram positive bacteria; HL1 and HL3 showed moderate to high activity at concentration range of 0.2–1 mg/ml. Copper complexes were found to exhibit moderate to high activity against bacteria as compared to the ligands. SwissADME analysis of all copper (II) complexes justified their candidature as potential candidate for pharmaceutical applications.
Interfaces adaptatives Adaptation dynamique à l'utilisateur courant
Creators: name: Simonin, Jérôme
name: Carbonell, Noëlle
Publisher: name: arXiv
Year: 2007
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: We present a survey of recent research studies of the implementation of adaptive user models in human-computer interaction. A classification of research directions on adaptive user interfaces is first proposed; it takes account of the user characteristics that are modelled, the distribution of initiative and control of the system evolution between user and system, and the role of dynamic adaptation. Then, a few representative research studies are briefly presented to illustrate this classification. In the conclusion, some major issues regarding the utility and usability of adaptive user interfaces and the design of an appropriate methodology for assessing the ergonomic quality of this new form of interaction are mentioned.
Isolate record for VAFB-ISO-677
Creators: name: Holloway, Corinne
Year: 1900
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the isolated find record for VAFB-ISO-677. The artifact is a core.
Syntheses and Molecular Docking Analysis of Some New Thiazole and Thiazine Derivatives as Three Armed Molecules with a Triazine Ring as a Core Component: A Search for anti-Obesity Agents
Creators: name: Badrey, Mohamed G.
name: Gomha, Sobhi M.
name: Abdelmonsef, Aboubakr H.
name: El-Reedy, Ahmed A. M.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: A number of new three-armed heterocycles as thiazoles and thiazines linked to triazine moiety was prepared starting from cyanuaric chloride and thiothemicarbazide which gave the target compound 1. The reaction of the tris-thiosemicarbazide with a variety of hydrazonoyl halides afforded thiazole derivatives. In addition, a thiazole derivative could be prepared from the reaction of the target compound 1 with DMAD. Moreover, thiazine derivatives were synthesized from compound 1 through its interaction with benzylidinemalonitrile. In this work, the molecular docking analysis of thirteen compounds against FTO (Fat mass and Obesity-Associated) protein is carried out to investigate the mode of their molecular interactions. Furthermore, in silico ADMET predictions for the new compounds were calculated with the objective to gain an insight into their pharmacokinetic, safety, and drug-likeness profile. The new compounds could be promising chemical scaffolds for the development of future anti-obesity drug candidates.
Fluctuations and phases in baryonic matter
Creators: name: Brandes, Len
name: Kaiser, Norbert
name: Weise, Wolfram
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The phase structure of baryonic matter is investigated with focus on the role of fluctuations beyond the mean-field approximation. The prototype test case studied is the chiral nucleon-meson model, with added comments on the chiral quark-meson model. Applications to the liquid-gas phase transition in nuclear matter and extensions to dense matter are performed. The role of vacuum fluctuations and thermal excitations is systematically explored. It is pointed out that such fluctuations tend to stabilise the hadronic phase characterised by spontaneously broken chiral symmetry, shifting the chiral restoration transition to very high densities. This stabilisation effect is shown to be further enhanced by additional dynamical fluctuations treated with functional renormalisation group methods.
description: 16 pages, 10 figures
Ο Μακεδονικός κύκλος των Αθηνών από το Συνέδριο του Βερολίνου έως τους Βαλκανικούς πολέμους
Creators: name: Κατσιώπη, Ελευθερία Α.
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Μακεδονικός κύκλος
Μακεδονικός Λόγος
Εθνικοί Σύλλογοι
Αυτόχθονες και ετερόχθονες Μακεδόνες
Macedonian lobby
Macedonian discourse
National Associations
Indigenous and heterochthons Macedonians

description: Η παρούσα διδακτορική διατριβή ερευνά το εθνικό έργο που ανέπτυξε ο Μακεδονικός κύκλος της ελληνικής πρωτεύουσας από το 1878 έως τους Βαλκανικούς Πολέμους. Καταγράφει, όσο το δυνατόν πληρέστερα, τους αυτόχθονες κι ετερόχθονες Μακεδόνες των μεσαίων κι ανώτερων κοινωνικών τάξεων, που εργάστηκαν στη θέση της πολιτείας για την προστασία, την απελευθέρωση και την ενσωμάτωση του μακεδονικού χώρου στο ελληνικό βασίλειο. Συγκεκριμένα, αναδεικνύει τον ρόλο των Μακεδόνων στη διαμόρφωση και την εφαρμογή της εξωτερικής πολιτικής. Επισημαίνει δηλαδή τις ιδεολογίες και τον τρόπο δράσης τους στο εθνικο-πολιτικό, οικονομικό, εκπαιδευτικό και κοινωνικό πεδίο. Συνάμα, αναλύει τον Μακεδονικό Λόγο που διατυπώθηκε από τα πρόσωπα αυτά μέσω των εθνικών συλλόγων. Επεξηγεί συνεπώς τα ποιοτικά και ποσοτικά χαρακτηριστικά του, τα οποία μεταβάλλονταν με αφορμή τις διάφορες οξύνσεις του Ανατολικού Ζητήματος. Εξετάζει ακόμη τη συμβολή του στην εδραίωση της αστικής ηγεμονίας και στην προώθηση των εκκλήσεων των κατώτερων στρωμάτων.
description: This doctoral thesis examines the national project which was developed by the Macedonian lobby of the Greek capital city between 1878 till the end of the Balkan Wars. The study offers an extensive analysis of the indigenous and heterochthons Macedonians of the middle and upper social classes, who acted instead of the Official State for the protection, the liberation and the integration of the Macedonian territorial land into the Greek kingdom. Specifically, the role of the Macedonians in the formulation and implementation of the foreign policy is highlighted. Namely, the ideologies and the way Macedonians act in the national-political, economical, educational and social spheres are pointed out. Furthermore, the Macedonian discourse which was expressed by these persons through the national associations is analyzed. Consequently, the qualitative and quantitative characteristics of the Macedonian discourse, which changed due to the various exacerbations of the Eastern Question, are explained. In addition, the contribution of the Macedonian discourse to the consolidation of the bourgeois hegemony and to the promotion of the demands of the lower classes is emphasized.
Complexified Dynamical Systems
Creators: name: Bender, Carl M.
name: Holm, Darryl D.
name: Hook, Daniel W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Many dynamical systems, such as the Lotka-Volterra predator-prey model and the Euler equations for the free rotation of a rigid body, are PT symmetric. The standard and well-known real solutions to such dynamical systems constitute an infinitessimal subclass of the full set of complex solutions. This paper examines a subset of the complex solutions that contains the real solutions, namely, those having PT symmetry. The condition of PT symmetry selects out complex solutions that are periodic.
description: 13 pages, 12 figures, to appear in Fast Track Communications, Journal of Physics A: Mathematical and Theoretical
LVRT Current Requirements of Grid Codes for IBRs: Blind Spots and Solutions (slides)
Creators: Ali Hooshyar
Publisher: name: IEEE
Year: 2023

Modern grid codes (GCs) require that inverter-based resources (IBRs) inject both positive- and negative-sequence currents during asymmetrical low-voltage ride through (LVRT) conditions. This GC provision prioritizes the reactive currents and also demands maximizing the active positive-sequence current if the IBR has unused current generation capacity when the required reactive current is generated. A variety of inverter control schemes are available to generate positive- and negative-sequence active/reactive currents, and satisfying these GCs seems to be straightforward. However, this paper reveals that the reference current generation methods of existing inverter control schemes fail to fulfil some important requirements of recent GCs. For example, they do not fully utilize the inverter capacity to generate the maximum active and/or reactive current. It is shown that these so-far hidden GC violations can result in a large untapped generation capacity during asymmetrical faults. This paper also develops an algorithm that satisfies recent GCs by deriving the positive- and negative-sequence currents that maximize the IBR�s reactive and active currents while the reactive current is prioritized. The simulation of a grid with high IBR penetration verifies that this new algorithm can unlock the full potential of recent GCs by significantly increasing the power generated during LVRT.

Who would benefit: Researchers in the area of renewable energy sources and power electronic converters.
Modern grid codes (GCs) require that inverter-based resources (IBRs) inject both positive- and negative-sequence currents during asymmetrical low-voltage ride through (LVRT) conditions. This GC provision prioritizes the reactive currents and also demands maximizing the active positive-sequence current if the IBR has unused current generation capacity when the required reactive current is generated. A variety of inverter control schemes are available to generate positive- and negative-sequence active/reactive currents, and satisfying these GCs seems to be straightforward. However, this paper reveals that the reference current generation methods of existing inverter control schemes fail to fulfil some important requirements of recent GCs. For example, they do not fully utilize the inverter capacity to generate the maximum active and/or reactive current. It is shown that these so-far hidden GC violations can result in a large untapped generation capacity during asymmetrical faults. This paper also develops an algorithm that satisfies recent GCs by deriving the positive- and negative-sequence currents that maximize the IBR's reactive and active currents while the reactive current is prioritized. The simulation of a grid with high IBR penetration verifies that this new algorithm can unlock the full potential of recent GCs by significantly increasing the power generated during LVRT.

Who would benefit/Who should attend: Researchers in the area of renewable energy sources and power electronic converters.
Fabrication of Copper(II)-coated Magnetic Core-shell Nanoparticles an Engineered Nano-magnetic Catalyst for the Synthesis of Pyrano Pyrazole and Pyrazole Derivatives
Creators: name: Soleimani, Maryam
name: Akbarpour, Tahereh
name: Khazaei, Ardeshir
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biochemistry
Medicine
Cell Biology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: Pyrano[2,3-c]pyrazole and 5-amino-1H-Pyrazole-4-carbonitrile derivatives were used in the presence of new copper(II)-coated magnetic core-shell nanoparticles Fe3O4@SiO2@Si(OEt)(CH2)3@melamine@TC to synthesize an engineered nanomagnetic catalyst in a mild green environment. The synthesized nanocatalyst was well characterized using different techniques. Fe3O4@SiO2@Si(OEt)(CH2)3@melamine@TC@Cu(OAc)2 is an environmentally friendly procedure to synthesize some novel Pyrano[2,3-c]pyrazole and 5-amino -1H-Pyrazole-4-carbonitrile. Relevant products were produced in green conditions with high to excellent yields. Interestingly, the catalyst can be easily separated from the reaction medium by an external magnet and can subsequently be used for successive reaction cycles (at least four times) without a significant reduction in catalytic activity. Energy dispersive X-ray analysis (EDX) was taken from the recovery catalyst for further investigation. The results showed no significant change in the percentage of synthesized catalyst elements. In this study, reaction conditions, i.e. the effect of temperature and amount of catalyst, were optimized using a systematic approach, namely, the design of experiment (DoE). The structures of the synthesized Pyrano[2,3-c]pyrazole and 5-amino-1H-Pyrazole-4-carbonitrile compounds were confirmed by 1H NMR, 13C NMR, and FT-IR spectra.
Absolute continuity for some one-dimensional processes
Creators: name: Fournier, Nicolas
name: Printems, Jacques
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We introduce an elementary method for proving the absolute continuity of the time marginals of one-dimensional processes. It is based on a comparison between the Fourier transform of such time marginals with those of the one-step Euler approximation of the underlying process. We obtain some absolute continuity results for stochastic differential equations with Hölder continuous coefficients. Furthermore, we allow such coefficients to be random and to depend on the whole path of the solution. We also show how it can be extended to some stochastic partial differential equations and to some Lévy-driven stochastic differential equations. In the cases under study, the Malliavin calculus cannot be used, because the solution in generally not Malliavin differentiable.
description: Published in at http://dx.doi.org/10.3150/09-BEJ215 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Voltage Sourced Converter (VSC) Applications in Power Transmission (08TP200)
Creators: Abed
Abbas
Adapa
Ramm Andersen
Bjarne
Aritsuka
Torno
Bahrman
Michael
Bhattacharya
Subhashish
Brochu
Jacques
Cease
T.W.
Christoferson
Jack
Demirci
Osman
Fardanesh
Bruce
Gemmell
Brian
Ghim
Minje
Gyugyi
Laszlo
Mehraban
Ben
Edris
Aty
Bilodeau
Hubert
Henderson
Mike
Hingorani
Nari
Horwill
Chris
Irokawa
Soichi
Joos
Geza
Karady
George G.
Kessinger
John
Kovalsky
leonard
Lips
Peter
Littenberger
Wayne
Paserba
John
Pourcyrous Mansour
Rahman
Manzar
Reed
Gregory
Ribeiro
Paulo F.
Schauder
Colin
Sen
K.K.
Shoup
Donald J.
Shperling
Ben
Sullivan
Dan
Takeda
Masatoshi
Torgerson.Duane
Tyll
Heinz
Varma
Rajiv
Wolf
Gene
Woodford
Dennis
Publisher: name: IEEE
Year: 2007

Voltage Sourced Converters (VSCs), applied to high voltage ac transmission systems, provides steady stale and dynamic power flow control. They also offer steady state and dynamic ac voltage and reactive power control. Voltage Sourced Converters, as ae to de and dc to ac converters, exhibit the unique capability for fast control of real and reactive power. These characteristics offer powerful means to improve performance of electric power systems, both at the transmission and the distribution level. The number of applications for voltage-sourced converters is presently small but growing. WG IS received the mandate to review VSC applications in power transmission and to compare various topologies currently used. Special requirements for de capacitors, valve assemblies, cooling systems, reactors, magnetic interfaces, protective features and control modes of operation are also identified. The document addresses safety measures, design and production tests, equipment ratings, control and protection, installation, maintenance, field commissioning, testing and operation.
Voltage Sourced Converters (VSCs), applied to high voltage ac transmission systems, provides steady stale and dynamic power flow control. They also offer steady state and dynamic ac voltage and reactive power control. Voltage Sourced Converters, as ae to de and dc to ac converters, exhibit the unique capability for fast control of real and reactive power. These characteristics offer powerful means to improve performance of electric power systems, both at the transmission and the distribution level. The number of applications for voltage-sourced converters is presently small but growing. WG IS received the mandate to review VSC applications in power transmission and to compare various topologies currently used. Special requirements for de capacitors, valve assemblies, cooling systems, reactors, magnetic interfaces, protective features and control modes of operation are also identified. The document addresses safety measures, design and production tests, equipment ratings, control and protection, installation, maintenance, field commissioning, testing and operation.
Market Equilibria With Energy Storage as Flexibility Resources
Creators: Weiying Gu and Ramteen Sioshansi
Publisher: name: IEEE
Year: 2022

This paper examines the participation of multiple competing strategic profit-maximizing energy storage in a spot electricity market and its impact on consumers, producers, and market equilibria.
Uncertain and variable real-time availability of renewable generation can increase the need for supply-side flexibility in power systems. Energy storage is a potential source of such flexibility. This paper examines the participation of multiple competing strategic profit-maximizing energy storage in a spot electricity market and its impact on consumers, producers, and market equilibria. To this end, we develop a two-stage stochastic bi-level model that has each energy-storage firm determine its market offers at the upper level to maximize its expected profit. The lower level represents market clearing under scenarios with different flexibility needs. We recast the bi-level model as a single-level optimization. A small illustrative example and larger case study show that energy storage can increase market efficiency and reduce renewable-energy curtailment. We show that energy-storage firms neglecting uncertainty in optimizing their market offers can yield profit losses.
The relationship between the hypoxic ventilatory response and arterial desaturation during heavy work
Creators: name: Hopkins, Susan Roberta
Publisher: name: University of British Columbia
Year: 2010

description: Arterial desaturation in fit athletes, during exercise at an intensity greater than or equal to 90% of VO₂ max has been reported by a number of authors yet the etiology of these changes remain obscure. Inadequate pulmonary ventilation due to a blunted respiratory drive, or lung mechanics has been implicated as a factor in the etiology of this phenomenon. It was the purpose of this experiment to investigate the relationship between arterial desaturation and ventilatory response to hypoxia (HVR). Twelve healthy male subjects ( age = 23.8 ± 3.6 yrs., height = 181.6 ±₋₁ 5.6 cms., Weight = 73.7 ± 6.2 kg., VO₂ max = 63.2 ± 2.2 ml .kg . -1 2 .min⁻¹) performed a five minute exercise test on a treadmill at 100% of VO₂ max. Arterial samples for pH, PCO₂, PO₂, and SaO₂ were withdrawn via an indwelling arterial cannula at rest and every 15s throughout the exercise test. The blood gas samples were analyzed with an Instrument Laboratories 1306 blood gas analyzer. Ventilation and VO₂ were measured by a Beckman metabolic measurement cart. On a separate occasion the ventilatory response to hypoxia (HVR) was determined by recording VE as progressive hypoxia was induced by adding N₂ to a mixing chamber. SaO₂ was measured using a Hewlett-Packard ear oximeter; to maintain isocapnia small ammounts of CO₂ were added to the open circuit system. ANOVA for repeated measured was used to evaluate changes in blood gases, ventilation, and VO₂. Simple linear regression and multiple linear regression was used to evaluate the relationship between the changes in SaO₂ and HVR and the descriptive variables. Subjects showed a significant decline in arterial saturation and PO₂ over the course of the test (p < 0.01,and p < 0.01). Four subjects (Mild) exhibited modest decreases in SaO₂ to (94.6 ± 1.9%), three (Moderate) showed an intermediate response (SaO₂ 91.6 ± 0.1%) and five (Marked) demonstrated a marked decrease in arterial saturation (SaO₂ = 90.0 + 1.2%). The differences in PO₂ and SaO₂ between Mild and Marked groups were significant ( p < 0.05, and p < 0.01); there were no significant differences between groups in VE, VO₂, pH or PCO . There was no significant correlation between the lowest SaO₂ reached and HVR, or any of the descriptive variables. Nine subjects did not reach maximal VE (as determined by the VO₂ max test) on the exercise test, two subjects 2 exhibited similar ventilation, and the remaining subject exceeded maximal VE, but fell into the Mild group with respect to desaturation. Oxygen uptake exceeded that recorded for the VO₂ max determination for four of the five subjects in the Marked group; the remaining subjects demonstrated lower or similar values. It was concluded that arterial desaturation was not related to blunted hypoxic drive.
Unified Grid-Forming/Following Inverter Control
Creators: Sijia Geng and Ian A. Hiskens
Publisher: name: IEEE
Year: 2022

The paper describes an inverter control scheme which incorporates both a phase-locked loop for voltage synchronization and power-frequency droop for load sharing.
The paper describes an inverter control scheme which incorporates both a phase-locked loop (PLL) for voltage synchronization and power-frequency droop for load sharing. As such, it is a hybrid grid-forming/following controller and offers beneficial characteristics of both. The model describing the dynamic behaviour of the inverter control scheme is presented and connections with grid-forming and grid-following control strategies are considered. A process for black-starting the PLL-based inverter control scheme is described. Case studies explore controller small- and large-disturbance performance under a variety of system conditions.
Investigating neutron transfer in the $^{9}$Be + $^{197}$Au system
Creators: name: Kaushik, Malika
name: Pandit, S. K.
name: Parkar, V. V.
name: Gupta, G.
name: Thakur, Swati
name: Nanal, V.
name: Krishnamoorthy, H.
name: Shrivastava, A.
name: Palshetkar, C. S.
name: Mahata, K.
name: Ramachandran, K.
name: Pal, S.
name: Pillay, R. G.
name: Singh, Pushpendra P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work $\textit{n}$-transfer and incomplete fusion cross sections for $^{9}$Be + $^{197}$Au system are reported over a wide energy range, E$_{c.m.}$ $\approx$ 29-45 MeV. The experiment was carried out using activation technique and off-line gamma counting. The transfer process is found to be the dominant mode as compared to all other reaction channels. Detailed coupled reaction channel (CRC) calculations have been performed for $\textit{n}$-transfer stripping and pickup cross sections. The measured 1$\textit{n}$-stripping cross sections are explained with CRC calculations by including the ground state and the 2$^{+}$ resonance state (E = 3.03 MeV) of $^{8}$Be. The calculations for 1$\textit{n}$-pickup, including only the ground state of $^{10}$Be agree reasonably well with the measured cross sections, while it overpredicts the data at subbarrier energies. For a better insight into the role of projectile structure in the transfer process, a comprehensive analysis of 1$\textit{n}$-stripping reaction has been carried out for various weakly bound projectiles on $^{197}$Au target nucleus. The transfer cross sections scaled with the square of total radius of interacting nuclei show the expected Q-value dependence of 1$\textit{n}$-stripping channel for weakly bound stable projectiles.
Implications of PREX-2 on the electric dipole polarizability of neutron rich nuclei
Creators: name: Piekarewicz, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The recent announcement by the PREX collaboration of an unanticipated thick neutron skin in 208Pb (Rskin208) has challenged our understanding of neutron rich matter in the vicinity of nuclear saturation density. Whereas earlier constraints indicate that the symmetry energy is relatively soft, the PREX-2 result seems to suggest the opposite. We confront constraints on the symmetry energy obtained from measurements of the electric dipole polarizability against those informed by the PREX-2 measurement of Rskin208 and by the correlations that it entails. Covariant energy density functionals informed by the properties of finite nuclei are used to compute the electric dipole response of 48Ca, 68Ni, 132Sn, and 208Pb. The set of functionals used in this work are consistent with experimental data, yet are flexible enough in that they span a wide range of values of Rskin208. It is found that theoretical predictions of the electric dipole polarizability that are consistent with the PREX-2 measurement systematically overestimate the corresponding values extracted from the direct measurements of the distribution of electric dipole strength. The neutron skin thickness of 208Pb extracted from parity violating electron scattering and the electric dipole polarizability measured in photoabsorption experiments are two of the cleanest experimental tools used to constrain the symmetry energy around nuclear saturation density. However, the recent value of Rskin208 that suggests a fairly stiff symmetry energy stands in stark contrast to the conclusions derived from the electric dipole polarizability. At present, we offer no solution to this dilemma.
description: 11 pages and 9 figures
A Closed-Form Mathematical Model and Method for Fast Fault Location on a Low Voltage DC Feeder Using Single-Ended Measurements
Creators: Munim Bin Gani and Sukumar Brahma
Publisher: name: IEEE
Year: 2022

This paper develops a seminal theoretical foundation for fast fault location on a dc feeder that uses only single-ended local measurements in time domain.
Fault location on a dc microgrid feeder needs to be extremely fast to protect the circuit breaker and converter-source components. This paper develops a seminal theoretical foundation for fast fault location on a dc feeder that uses only single-ended local measurements in time domain. The theory provides a closed-form deterministic solution for fault location, making the resulting fault location method agnostic to system-topology and immune to fault resistance. The theory is developed with ideal dc voltage sources, and extended to practical converter-sources. The performance of the resulting method is demonstrated by simulating a dc feeder with converters connected at both ends, modeled in PSCAD.
Analysis and Simulation Research of Cascading Faults in AC/DC Hybrid Grid
Creators: Xinzhou Dong
Yunshu Huang
Haozong Wang
Binshu Chen
Hao Wang
and Qihuan Dong
Publisher: name: IEEE
Year: 2022

Based on the blackout accident that happened in Brazil on March 21st, 2018, this paper analyzes the cause, mechanism, and development of cascading faults in AC/DC hybrid grids.
In the development of power systems, the traditional AC power grids are gradually evolving into AC/DC hybrid grids. However, the safety of hybrid grids is threatened by cascading faults, which is a set of chain events caused by a single fault and will eventually lead to a blackout. Based on the blackout accident that happened in Brazil on March 21st, 2018, this paper analyzes the cause, mechanism, and development of cascading faults in AC/DC hybrid grids. Simulations based on PSCAD/EMTDC software have been carried out to illustrate the typical cascading fault scenario including HVDC commutation failure, DC blocking, power flow transferring, incorrect relay protection and the outage of the network. Both analysis and simulation results shows that the "strong DC weak AC" structure and unreasonable cooperation of relay protections and stability control devices are important factors of cascading faults. Finally, this paper prospects a series of protection and control technologies that are expected to solve the problem.
Isolate record for VAFB-ISO-646
Creators: name: Holloway, Corinne
Year: 1900
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Chert
valueUri: https://core.tdar.org/browse/material-type/213/chert
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the isolated find record for VAFB-ISO-646. The artifacts are two banded Monterey chert flakes.
Synthesis, Structural Investigations, DFT Calculations, and Molecular Docking Studies of Novel 2-(Substituted-Aryloxymethyl)-5-(Pyridin-4-yl)-1, 3, 4-Oxadiazoles: Highly Potential InhA and Cytochrome c Peroxidase Inhibitors
Creators: name: Datar, Madhura
name: Dhanwad, Ramagopal
name: Javeed, Mohammad
name: Yernale, Nagesh Gunavanthrao
name: Mathada, Basavarajaiah Suliphuldevara
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: We report derivatives of 2,5-disubstituted-1,3,4-oxadiazole as powerful anti-TB and antioxidant compounds. Using substituted aryloxy acetic acids (2a–f) and isoniazid (3) in the presence of phosphorus oxychloride, a series of new 2-(substituted-aryloxymethyl)-5-(pyridin-4-yl)-1,3,4-oxadiazoles (4a–f) are synthesized. IR, 1H NMR, and mass spectral data were used to physically and spectroscopically describe the synthesized molecules. Density Functional Theory (DFT) calculations were performed at the DFT/B3LYP level using 6-31 G++ (d, p) to reproduce the structure and geometry. The non-linear visual characteristic of compounds is determined by the first-order hyperpolarizability calculation. To analyze the charge transfer interface between the structures, HOMO and LUMO investigations were used. The in vitro anti-TB and antioxidant activity was carried out. The compound 4d exhibited excellent anti-TB activity with a MIC value of 3.12 µg/ml. The compounds 4b and 4c showed promising antioxidant activity at a concentration of 10 µg/ml with inhibition rates of 68.36% and 69.26% respectively. Furthermore, the docking studies for the newly synthesized molecules were carried out by Auto dock software with proteins InhA (4TZK) and Cytochrome c peroxidase (2X08). All the compounds showed a strong binding affinity for the docked proteins.
Is Thick Brane Model Consistent with the Recent Observations?
Creators: name: Movahed, M. Sadegh
name: Ghassemi, Sima
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There exist many observational evidences implying the expansion of our universe is undergoing a late-time acceleration, the mechanism of this acceleration is yet unknown. In the so-called thick brane model this phenomena is attributed to the thickness of the brane along the extra dimension. In this study we mainly rely to the consistency of this model with most recent observational data related to the background evolution. The new Supernova Type Ia (SNIa) Gold sample and Supernova Legacy Survey (SNLS) data, the position of the acoustic peak at the last scattering surface from the WMAP observations and the baryon acoustic oscillation peak found in the Sloan Digital Sky Survey (SDSS) are used to constrain the free parameter of the thick codimension 1 brane model. To infer its consistency with age of our universe, we compare the age of old cosmological objects with what computed using the best fit values for the model parameters. When the universe is matter dominated, $w=0$, at 68% level of confidence, the combination of Gold sample SNIa, CMB shift parameter and SDSS databases provides $Ω_m=0.31_{-0.02}^{+0.02}$, $Ω_{\cal{C}}=0.05_{-0.01}^{+0.01}$, $w_r=-1.40_{-0.20}^{+0.20}$, hence a spatially open universe with $Ω_k=0.21_{-0.08}^{+0.08}$. The same combination with SNLS supernova observation gives $Ω_m=0.28_{-0.02}^{+0.03}$, $Ω_{\cal{C}}=0.037_{-0.004}^{+0.003}$, $w_r=-2.05_{-0.15}^{+0.15}$ consequently provides a spatially open universe $Ω_k=0.11_{-0.07}^{+0.10}$. These results obviously seem to be in contradiction with the most recent WMAP results indicating a flat universe.
description: 15 pages and 15 figures, V2: Added references and minor corrections, main results and conclusions unchanged
Isolate record for VAFB-ISO-688
Creators: name: Holloway, Corinne
Year: 1900
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the isolated find record for VAFB-ISO-688. The artifact is a secondary flake.
Efficacy of Binary Media and Gold Catalyst for the Synthesis of a Conjugates with Cyclohexyl-Tetrazole-Alkyloxyphenyl-Benzenamine through Ugi 4-CC Reactions: Cytotoxic and Single-Crystal Studies
Creators: name: Jivani, Amita
name: Kapadiya, Khushal
name: Jainik, Agnieszka
name: Khunt, Ranjan
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: With the critical increase in patients suffering from various types of malignant growth, it is obvious that quick steps in the development of novel and viable agents should be taken. In the current study, we focused on a novel synthetic approach for the synthesis of tetrazole derivatives using Ugi-4CR by employing a gold catalyst in water: methanol media. Gold’s adjustable nature, unique characteristics, and mild reaction conditions were utilized to generate a quadrupole adduct containing a cyclohexyl system, benzamine, terminal alkyne bearing aryl and a medicinally efficient tetrazole fragment. Along with the routine characteristic techniques (IR, MS, NMR), single crystal XRD was imparted for the assumption of the spatial arrangement of the desired adduct (5a-5j). Out of 10 selected scaffolds for the NCI 60 cell lines study, 5b was shown their highest potency in the single-dose assay (10−4 M) against CAKI-1 (GI50= −4.66, Renal cancer) and 5e were found to be most active in Leukemia (MOLT-4, GI50= −5.37) cancers than the rest of synthesized molecules.
How Can Probabilistic Solar Power Forecasts Be Used to Lower Costs and Improve Reliability in Power Spot Markets? A Review and Application to Flexiramp Requirements
Creators: Benjamin F. Hobbs
Venkat Krishnan
Jie Zhang
Hendrik F. Hamann
Carlo Siebenschuh
Rui Zhang
Binghui Li
Li He
Paul Edwards
Haiku Sky
Ibrahim Krad
Evangelia Spyrou
Xin Fang
Yijiao Wang
Q. Xu
and Shu Zhang
Publisher: name: IEEE
Year: 2022

We review the approaches by which system operators and market participants can use probabilistic forecasts of wind, solar, and load to help manage net load uncertainty and then provide a case study in which a method for using probabilistic solar forecasts to define needs for reserves is developed and evaluated.
Net load uncertainty in electricity spot markets is rapidly growing. There are five general approaches by which system operators and market participants can use probabilistic forecasts of wind, solar, and load to help manage this uncertainty. These include operator situation awareness, resource risk hedging, reserves procurement, definition of contingencies, and explicit stochastic optimization. We review these approaches, and then provide a case study in which a method for using probabilistic solar forecasts to define needs for reserves is developed and evaluated. The case study has three parts. First, we describe building blocks for enhancing the Watt-Sun solar forecasting system to produce probabilistic irradiance and power forecasts. Second, relationships between Watt-Sun forecasts for multiple sites in California and the system's need for flexible ramp capability (flexiramp) are defined by machine learning and statistical methods. Third, the performance of present methods to defining flexiramp requirements, which are not conditioned on weather and renewables forecasts, is compared with that of probabilistic solar forecast-based requirements, using a multi-timescale production costing model with an 1820-bus representation of the WECC power system. Significant potential savings in fuel and flexiramp procurement costs from using solar-informed reserve requirements are found.
Spectral Mapping Reconstruction of Extended Sources
Creators: name: Smith, J. D. T.
name: Armus, L.
name: Dale, D. A.
name: Roussel, H.
name: Sheth, K.
name: Buckalew, B. A.
name: Jarrett, T. H.
name: Helou, G.
name: Kennicutt, R. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Three dimensional spectroscopy of extended sources is typically performed with dedicated integral field spectrographs. We describe a method of reconstructing full spectral cubes, with two spatial and one spectral dimension, from rastered spectral mapping observations employing a single slit in a traditional slit spectrograph. When the background and image characteristics are stable, as is often achieved in space, the use of traditional long slits for integral field spectroscopy can substantially reduce instrument complexity over dedicated integral field designs, without loss of mapping efficiency -- particularly compelling when a long slit mode for single unresolved source followup is separately required. We detail a custom flux-conserving cube reconstruction algorithm, discuss issues of extended source flux calibration, and describe CUBISM, a tool which implements these methods for spectral maps obtained with ther Spitzer Space Telescope's Infrared Spectrograph.
description: 11 pages, 8 figures, accepted by PASP
The radio emission from Active Galactic Nuclei
Creators: name: Radcliffe, J. F.
name: Barthel, P. D.
name: Garrett, M. A.
name: Beswick, R. J.
name: Thomson, A. P.
name: Muxlow, T. W. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: For nearly seven decades astronomers have been studying active galaxies, that is to say galaxies with actively accreting central supermassive black holes, AGN. A small fraction of these are characterized by luminous, powerful radio emission: this class is known as radio-loud. A substantial fraction, the so-called radio-quiet AGN population, displays intermediate or weak radio emission. However, an appreciable fraction of strong X-rays emitting AGN are characterized by the absence of radio emission, down to an upper limit of about $10^{-7}$ times the luminosity of the most powerful radio-loud AGN. We wish to address the nature of these - seemingly radio-silent - X-ray-luminous AGN and their host galaxies: is there any radio emission, and if so, where does it originate? Focusing on the GOODS-N field, we examine the nature of these objects employing stacking techniques on ultra-deep radio data obtained with the JVLA. We combine these radio data with Spitzer far-infrared data. We establish the absence, or totally insignificant contribution of jet-driven radio-emission in roughly half of the otherwise normal population of X-ray luminous AGN, which appear to reside in normal star-forming galaxies. We conclude that AGN- or jet-driven radio emission is simply a mechanism that may be at work or may be dormant in galaxies with actively accreting black holes. The latter can be classified as radio-silent AGN.
description: Accepted as an A&A Letter. 5 pages, 4 figures (v2 - language edited version)
Polycyclic Aromatic Hydrocarbon (PAH) Residues in the Honeybee, Honey, and Pollen and Estimation of Atmospheric Concentrations in Bursa, Turkey
Creators: name: Sari, Mehmet Ferhat
name: Esen, Fatma
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Astronomical and Space Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: Polycyclic aromatic hydrocarbon (PAH) concentrations in urban and semi-urban areas were determined in the honeybee, honey and pollen in Bursa, Turkey. The total of 14 PAH (∑14PAH) concentrations measured in the honeybee in the urban and semi-urban areas were 267.65 ± 74.15 ng/g (mean ± standard deviation) and 109.11 ± 19.86 ng/g, respectively. Similarly, the ∑14PAH concentrations measured in honey were 650.24 ± 97.60 and 464.32 ± 57.92 ng/g, respectively, and measured in pollen were 304.32 ± 184.73 and 329.62 ± 154.24 ng/g, respectively. The PAH sources were determined using diagnostic ratios. According to the diagnostic ratios, it was concluded that the sources generally originated from the combustion of coal and biomass. In addition, the PAHs in both sampling areas showed a more dominant distribution in honey samples. The Pearson correlation coefficient method was applied to determine the relationships among the samples. According to the correlation results, there was a strong correlation between the honeybee and pollen samples in both sampling areas, while there were lower correlation results for the honey samples. Finally, atmospheric PAH concentrations were estimated using the leaf/air partition coefficients available in the literature with the help of pollen samples. According to the results obtained, it was determined that pollen samples can be used to estimate atmospheric PAH concentrations.
Towards Understanding the Origin of Genetic Languages
Creators: name: Patel, Apoorva D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Genomics (q-bio.GN)
subject: Information Theory (cs.IT)
subject: Biological Physics (physics.bio-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Molecular biology is a nanotechnology that works--it has worked for billions of years and in an amazing variety of circumstances. At its core is a system for acquiring, processing and communicating information that is universal, from viruses and bacteria to human beings. Advances in genetics and experience in designing computers have taken us to a stage where we can understand the optimisation principles at the root of this system, from the availability of basic building blocks to the execution of tasks. The languages of DNA and proteins are argued to be the optimal solutions to the information processing tasks they carry out. The analysis also suggests simpler predecessors to these languages, and provides fascinating clues about their origin. Obviously, a comprehensive unraveling of the puzzle of life would have a lot to say about what we may design or convert ourselves into.
description: (v1) 33 pages, contributed chapter to "Quantum Aspects of Life", edited by D. Abbott, P. Davies and A. Pati, (v2) published version with some editing
Light Induced Negative Differential Conductance in Molecular Junctions: Role of Triplet States and Electron-Phonon Interaction
Creators: name: Eskandari-asl, Amir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work we theoretically consider the OPE-3 molecule bridging two metallic leads and show that because of the electron-phonon interaction and the transition of cation to triplet states, we can have a light induced negative differential conductance. Furthermore, we investigate the effects of light intensity and temperature on this phenomena.