cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Colorimetric sensor based on hydrazine moiety for rapid and selective detection of fluoride ion via intramolecular charge transfer
Creators: name: Kodlady, Suresh N.
name: Narayana, B.
name: Sarojini, B. K.
name: Gauthama, B. U.
name: Manjunatha, J.G.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: Plant Biology

description: A colorimetric anion sensor (E)-3-((2-((4-(4-Methoxyphenyl)thiophen-2- yl)methyl)hydrazono)methyl)-1 H-indole ATH was synthesised and confirmed by different spectroscopic methods, such as 1 H NMR, 13 C NMR, ESI-Mass and FT-IR spectroscopy. The ATH sensor revealed the spectral change and detection in the presence of fluoride ion over the other anions such as OH−, Cl−, AcO−, I−, HSO4−, NO3−, Br−, S2-, CN− & NO2−. Interestingly, sensor ATH exhibited highly selective fluoride ion detection with significant changes in the colour from light yellow to dark yellow in ACN and ACN: H2O (8:2, v/v) medium. The colorimetric sensor effectively responds to fluoride ion stimulation through deprotonation and (ICT) intramolecular charge transfer sensing mechanism. The fluoride sensing mechanism was confirmed by 1 H NMR titration and was supported by density functional theory (DFT) and electrochemical studies. In this study, the B–H plot calculates the stoichiometry and binding constant (Ka) of the host-guest complex and strong interaction between the probe ATH with fluoride ions forming a 1:2 binding ratio. Furthermore, the test strips based on the probe ATH were used to detect F- ions qualitatively and quantitatively in 100% aqueous solution.
title: ИСПОЛЬЗОВАНИЕ СЕЛЕКЦИОННЫХ ИНДЕКСОВ ПРИ ПОДБОРЕ РОДИТЕЛЬСКИХ ПАР В ОВЦЕВОДСТВЕ
Creators: name: Катков, Константин Александрович
name: Скорых, Лариса Николаевна
name: Остапчук, Павел Сергеевич
name: Емельянов, Сергей Анатольевич
name: Куевда, Татьяна Алексеевна
Publisher: name: ФГБНУ "Северо-Кавказский федеральный научный аграрный центр"
Year: 2019

description: Успешная селекционная работа в животноводстве невозможна без правильного подбора родительских пар. Необходимо для дальнейшей селекции отбирать животных с наиболее значимыми хозяйственно полезными признаками (ХПП). Если животные отбираются по какому-либо одному ХПП, это не представляет особых сложностей. Иная картина наблюдается, когда следует оценить и отобрать животных по нескольким значимым признакам. В этом случае необходимо разработать селекционные индексы, позволяющие отбирать животных по нескольким ХПП. Основной трудностью такого подхода является определение веса каждого признака в индексе. Основанием для построения селекционных индексов служит селекционное отношение, отражающее степень превышения целевых показателей ХПП по породе над средним значением каждого признака в анализируемой группе животных. Применение селекционного отношения вместо селекционного дифференциала позволит исключить отрицательные значения индексов. Предложенный алгоритм построения индекса предполагает расчет опорного значения селекционного индекса, которое определяет животных с показателями, равными средним значениям по выборке. Данное опорное значение не обязательно является пороговым значением индекса, по которому ведется селекционный отбор животных. Предложенный алгоритм позволяет самостоятельно назначать пороговое значение. При этом исключается возможность появления отрицательных индексов, использование которых не всегда удобно. В настоящее время одной из актуальных задач в животноводстве является внедрение в отрасль современных информационных технологий. Предложенная процедура формирования и расчета селекционных индексов предполагает использование специализированных математических пакетов, обладающих возможностью графического представления полученных результатов. В работе показано, что отобранные животные с индексами, превышающими пороговое значение, могут быть разбиты на категории для дальнейшего формирования наиболее перспективных родительских пар.
title: Weather shocks and inflation expectations in semi-structural models
Creators: name: Vicente Romero, Jose
name: Naranjo-Saldarriaga, Sara
Publisher: name: Graduate Institute of International and Development Studies
publisherIdentifier: https://ror.org/007ygn379
publisherIdentifierScheme: ROR
Year: 2022

description: Graduate Institute of International and Development Studies Working Paper ; no. 20/2022
title: ИВЕРСАН®  -  ЭФФЕКТИВНЫЙ    ПРЕПАРАТ    ПРОТИВ ЧЕСОТОЧНЫХ КЛЕЩЕЙ  У   ЛОШАДЕЙ
Creators: name: Енгашев, С.В.
name: Енгашева, Е.С.
name: Колесников, В.И.
name: Кошкина, Н.А.
Publisher: name: ФГБНУ "Северо-Кавказский федеральный научный аграрный центр"
Year: 2019

description: В статье изложены результаты     производственного  опыта  по испытанию   препарата Иверсан (серии 020418) против саркоптозов  у лошадей. Работу проводили на  20 лошадях,  спонтанно зараженных чесоточными клещами, которых разделили на  опытную и контрольную  группы, по  10 животных. Препарат Иверсан задали животным опытной  группы  орально с водой   в  дозе 1 мл на 200 кг массы животного (200 мкг ивермектина на 1 кг массы животного) индивидуально, двукратно, с интервалом 14 дней.  Контрольная группа лошадей препарат не получала.  Через 10 дней после второго введения лошадям препарата Иверсан  провели клинические исследования и микроскопию соскобов кожи от лошадей  опытной и контрольной  групп и  саркоптозных   клещей  у лошадей опытной группы не обнаружили, что свидетельствует о 100%-ой  эффективности препарата Иверсан.
A new method of pulse-wise spectral analysis of Gamma-ray Bursts
Creators: name: Basak, Rupal
name: Rao, A. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Time-resolved spectral analysis, though a very promising method to understand the emission mechanism of gamma-ray bursts (GRBs), is difficult to implement in practice because of poor statistics. We present a new method for pulse-wise time-resolved spectral study of the individual pulses of GRBs, using the fact that many spectral parameters are either constants or smooth functions of time. We use this method for the two pulses of GRB 081221, the brightest GRB with separable pulses. We choose, from the literature, a set of possible models which includes the Band model, blackbody with a power-law (BBPL), a collection of black bodies with a smoothly varying temperature profile, along with a power-law (mBBPL), and two blackbodies with a power-law (2BBPL). First, we perform time-resolved study to confirm the spectral parameter variations, and then construct the new model to perform a joint spectral fit. We find that any photospheric emission in terms of black bodies is required mainly in the rising parts of the pulses and the falling part can be adequately explained in terms of the Band model, with the low energy photon index within the regime of synchrotron model. Interestingly, we find that 2BBPL is comparable or sometimes even better, though marginally, than the Band model, in all episodes. Consistent results are also obtained for the brightest GRB of Fermi era --- GRB 090618. We point out that the method is generic enough to test any spectral model with well defined parameter variations.
description: Submitted to ApJ, under review
Development of a D-μSPE method based on curcumin-modified magnetic reduced graphene oxide nanocomposite for the determination of Trichostatin A in a biological sample
Creators: name: Ghanbari, Azadeh
name: Es’Haghi, Zarrin
name: Khoshnood, Razieh Sanavi
name: Beyramabadi, Safar Ali
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: In the current work, a novel curcumin-modified magnetic graphene oxide nanocomposite was synthesised through a facile method and the loading of Trichostatin A as an anticancer drug was evaluated. D-μSPE method coupled with high-performance liquid chromatography (HPLC-DAD) successfully applied to determine the target analyte. The proper synthesis of the nanocomposite was investigated using Fourier-transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy and vibrating sample magnetometry. The Taguchi statistical design was used to investigate the impact of five operating variables. The results for signal/noise ratio (S/N) and analysis of variance showed that the MG-curcumin/TSA ratio was the most significant factor while the solution pH was the least significant variable. In addition, the optimum operating conditions were obtained and adsorption isotherms were also studied. The optimised parameters were employed to perform extraction of the TSA from real samples. Good linearity (with r2 = 0.9950) was shown for TSA concentrations from 5.0 to 1000.0 ng mL−1. Moreover, detection limit (0.70 ng mL−1), limit of quantification (2.51 ng mL−1), Inter-day and intra-day precision (n = 5, 3.2%, and 5.0%) were achieved for the method.
title: Продуктивность, физико-химические, товарно-технологические свойства и биологическая ценность свинины в зависимости от технологий откорма
Creators: name: Погодаев, Владимир
name: Скрипкин, Валентин
name: Растоваров, Евгений
name: Оробец, Владимир
name: Агарков, Александр
name: Агарков, Николай
Publisher: name: ФГБНУ "Северо-Кавказский федеральный научный аграрный центр"
Year: 2019

description: В статье представлены мясная продуктивность, физико-химические и товарно-технологические свойства мышечной, жировой ткани и частота дефектов мяса PSE и DFD в зависимости от технологии откорма. Свиньи крупной белой породы, содержащиеся в условиях промышленной технологии, превосходят сибсов, откармливаемых в условиях личного подсобного хозяйства по откормочным качествам в среднем на 20,5 %. Они достигают живой массы 120 кг на 34 дня раньше при меньших (на 0,54 корм. ед.) затратах кормов на 1 кг прироста. Мясо свиней крупной белой породы, откормленных в условиях личных подсобных хозяйств, обладает высокими качественными характеристиками. В длиннейшей мышце спины свиней из личного подсобного хозяйства содержится больше внутримышечного жира (на 0,96 %), она обладает более высокой влагоудерживающей способностью (на 16,74 %), интенсивностью окраски (на 10,2 ед. экстинции), меньшим значением рН через 45 минут, 24 и 48 часов после убоя, потерями сока при нагревании (на 3,77 %) и лучшими вкусовыми качествами мяса и бульона при дегустации. У животных, выращенных в условиях промышленной технологии, выявлено 13,64% туш с дефектом PSE мяса и 4,54% с дефектом DFD. У животных, выращенных в личных подсобных хозяйствах, дефект PSE был выявлен в 9,09% туш, а дефект DFD отсутствовал. В процессе охлаждения и хранения в охлажденном состоянии разница в усушке мяса была в пользу животных, откормленных в личных подсобных хозяйствах по сравнению с промышленным откормом – 0,04; 0,05; 0,08; 0,08% через 2; 5; 7; 8 суток соответственно.
Implementation of an analytical method for the simultaneous determination of greenhouse gases in a reservoir using FID/µECD gas chromatography
Creators: name: Ossa, Duvan E. Hoyos
name: Rios, Sara E. Gallego
name: Loaiza, Diana C. Rodríguez
name: Peñuela, Gustavo A.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: The greenhouse gas emissions of CH4, N2O and CO2 from a tropical reservoir and a tributary river that supplies it were measured from 2015 to 2019 using a GC-FID/µECD method. The chromatographic technique was used with a configuration of a methanizer and two specific columns, by direct injection of the gaseous samples using the floating static chamber as a field sampling method. The parameters analysed for the chromatographic methodology validation were selectivity, linearity, detection limit and quantification, bias (as a practical assessment of trueness), precision and uncertainty. These parameters were found to be satisfactory. The results showed a low deviation of the analysed data throughout the period evaluated.
A comparative study on bulk and nanoconfined water by time-resolved optical Kerr effect spectroscopy
Creators: name: Taschin, Andrea
name: Bartolini, Paolo
name: Marcelli, Agnese
name: Righini, Roberto
name: Torre, Renato
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The low frequency vibrational spectra of hydrated porous silica are specifically sensitive to the hydrogen bond interactions and provides a wealth of information on the structural and dynamical properties of the water contained in the pores of the matrix. We investigate systematically this spectral region of Vycor porous silica (pore size about 4 nm) for a series of samples at different levels of hydration, from the dry matrix to completely filled pores. The spectra are obtained as the Fourier transforms of time-resolved heterodyne detected optical Kerr effect (HD- OKE) measurements. The comparison of these spectra with that of bulk water allows us to extract and analyze separately the spectral contributions of the first and second hydration layers, as well as that of bulk-like inner water. We conclude that the extra water entering the pores above 10 % water/silica weight ratio behaves very similarly to bulk water. At lower levels of hydration, corresponding to two complete superficial water layers or less, the H-bond bending and stretching bands, characteristic of the tetrahedral coordination of water in the bulk phase, progressively disappear: clearly in these conditions the H-bond connectivity is very different from that of liquid water. A similar behavior is observed for the structural relaxation times, measured from the decay of the time-dependent HD-OKE signal. The value for the inner water is very similar to that of the bulk liquid; that of the first two water layers is definitely longer by about a factor 4. These findings should be carefully taken into account when employing pore confinement to extend towards lower temperatures the accessible temperature range of supercooled water.
Investigation of methylene blue adsorption from aqueous solution onto ZnO nanoparticles: equilibrium and Box-Behnken optimisation design
Creators: name: Chemingui, Hajer
name: Rezma, Souad
name: Lafi, Ridha
name: Alhalili, Zahrah
name: Missaoui, Takwa
name: Harbi, Imen
name: Smiri, Moez
name: Hafiane, Amor
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Throughout this report, ZnO nanoparticles are synthesised by co-precipitation as a new adsorbent. XRD, FTIR, SEM, PL, and UV-visible spectroscopy characterise the obtained nanoparticles. Characterisation of prepared nanoparticles provided evidence of the impact of duration of calcination on particle size and morphology. The new adsorbent was used to remove cationic dye (methylene blue (MB)) from aqueous solutions by batch adsorption technique. The effect of pH, adsorbent dosage, ion strength, contact time, and the temperature was investigated. The pHPZC was approximately pH 7.2. The results revealed that an amount of 0.1 g/L ZnO-NPs showed maximum removal efficiency of each dye (50 ppm) at pH 8.5. The adsorption process of the MB followed the Langmuir model with a correlating constant (R2) higher than 0.99 and with a maximum capacity (qm) value of 62.5 mg/g. The pseudo-second-order (R2 > 0.9986) model was most appropriate in the description of the adsorption process. Thermodynamic parameters ΔS0(0.0001 J/mol K), ΔH0 (– 3,692 kJ/mol), and ΔG0(between − 4.143 to and – 4.189 kJ/mol) were investigated at four temperatures (25, 35, 45, and 55°C). The uptake process of the MB occurs spontaneously following an exothermic process and shows that the adsorption follows the physisorption mechanism. It would appear that hydrogen bonding was included in the potential mechanism governing MB adsorption on the ZnO nanoparticles at pH 8.5. In order to optimise various process parameters, e.g. pH solution (X1: 4–11), adsorbing dose (X2: 0,01–0,1 g/L), [MB] Concentration dye (X3: 50–300 mg/L), and contact time (X4: 20–120 min), Box–Behnken, design (BBD) in response surface methodology (RSM) was used. The experimental results were based on a second-order polynomial equation. Overall, the adjusted coefficient of determination (R2) value of 0.99 indicated that the used model was quite suitable and the selected RSM was successful in optimising the decolarizations conditions of MB.
Environmental geochemical signature of shale in pollution assessment of trace metals in soil and water in parts of southern Benue trough, southeastern Nigeria
Creators: name: Nganje, T. N.
name: Adamu, C. I.
name: Ekwere, A. S.
name: Ibe, K. A.
name: Edet, Aniekan
name: Hursthouse, A. S.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences

description: An investigation of environmental geochemistry of shale rock, soil and water in parts of Abakaliki, southern Benue Trough , Nigeria was carried out in order to evaluate the impact of shale bedrock in the soil and water environment. Shale rock, soil and water samples were collected from ten (10) locations within the study area and were analysed for major and trace elements using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). In situ parameters such as pH, in water were measured in the field. The results show that Pb is highly enriched while As. Cr, Co, Fe, Ni, Sr, V and Zn are slightly enriched in the shales relative to the global shale average. Similar geochemical trend was observed for surface and subsurface soils. Also, the mean concentrations of As, Co. Cu. Mn, Pb and Zn in soils at both depths are higher than the mean concentrations in the shale bedrock in the area of study, implying relative enrichments of these metals in the soils of the study area. In addition, the mean values of Al, Fe, Ti, Cr, Ni, Sr and V in both soil depths are lower than the values recorded in the shale bedrock. Relationship between pH and metal load suggested that the waters are dominantly near neutral to alkaline range suggesting that acidic contaminants do not affect the water quality. The mean concentrations of Al, Fe, Mn and Pb in groundwater and surface water were above the regulatory standards indicating contamination of the water. The calculated enrichment factor, anthropogenic input, pollution index for soil indicated that the soil are highly contaminated through numerous geogenic and anthropogenic sources with Pb being the most toxic metal with the shale bedrock and the mineral load contained in them as the major contributor of these contaminants.
Holographic Brownian Motion in Two Dimensional Rotating Fluid
Creators: name: Atmaja, Ardian Nata
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Brownian motion of a heavy quark under a rotating plasma corresponds to BTZ black hole is studied using holographic method from string theory. The position of heavy quark is represented as the end of string at the boundary of BTZ black hole and the corresponding rotating plasma is one dimensional compact space. We requires the angular velocity of the string fluctuation to be equal to the ratio between inner horizon and outer horizon, called terminal angular velocity, which is related to the zero total force condition. We show the displacement square of this solution behaves as a Brownian particle in non-relativistic limit. For relativistic case, we argue that it is more appropriate to compute the leading order of low frequency limit of random-random force correlator. The Brownian motion relates this correlator with physical observables: effective mass of the Brownian particle, friction coefficient, and temperature of the plasma.
description: major revision (abstract, add more references, more detail in some sections, formulas correction), 23 pages, accepted to JHEP
Gallup/Knight Foundation Survey
Creators: name: S., John
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Science and technology (2); information on social media (1); free and open market (1); legal and political rights (1); right to engage in peaceful protest (1); news organizations (1); law and order (1); trust in government officials (1); election fairness (1); equal opportunity to vote (1); political debate (1); social media (5); fake news (1); censorship (1); misinformation online (1); hate speech (1) internet/online activities (4); political divisions (1); Communications Decency Act (1); cryptocurrency/blockchain (1); online content moderation (1); politics on social media (6).
title: НОРМАТИВНО-ПРАВОВОЕ РЕГУЛИРОВАНИЕ ДЕЯТЕЛЬНОСТИ ТЕРРИТОРИАЛЬНОГО ОБЩЕСТВЕННОГО САМОУПРАВЛЕНИЯ КАК НЕКОММЕРЧЕСКИХ ОРГАНИЗАЦИЙ В СТРУКТУРЕ ГРАЖДАНСКОГО ОБЩЕСТВА
title: LEGAL REGULATION OF ACTIVITIES OF TERRITORIAL PUBLIC SELF-GOVERNMENTAS NON-PROFIT ORGANIZATIONS IN CIVIL SOCIETY STRUCTURE
Creators: name: Гордеева, Ирина Вячеславовна
Publisher: name: Издательский центр СурГУ
Year: 2019

description: В статье предложен сравнительный анализ нормативно-правового регулирования деятельности территориального общественного самоуправления на федеральном, региональном и местном уровнях. Рассмотрены актуальные проблемы правового регулирования деятельности территориального общественного самоуправления, сформулированы предложения по его совершенствованию.
description: The  article  proposes  a  comparative  analysis  of  the  legal  regulation  of  the  territorial  public self-government on the federal, regional and local levels. The current topics of the legal regulation of  activities  of  the  territorial  public  self-government  are  considered.  Recommendations  for  improvement of the legal regulation of the territorial public self-government are formulated.
Experimental demonstration of interaction-free all-optical switching via the quantum Zeno effect
Creators: name: McCusker, Kevin T.
name: Huang, Yu-Ping
name: Kowligy, Abijith
name: Kumar, Prem
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally demonstrate all-optical interaction-free switching using the quantum Zeno effect, achieving a high contrast of 35:1. The experimental data matches a zero-parameter theoretical model for several different regimes of operation, indicating a good understanding of the switch's characteristics. We also discuss extensions of this work that will allow for significantly improved performance, and the integration of this technology onto chip-scale devices.
Quench dynamics of one-dimensional bosons in a commensurate periodic potential: A quantum kinetic equation approach
Creators: name: Tavora, Marco
name: Mitra, Aditi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Results are presented for the dynamics arising due to a sudden quench of a boson interaction parameter with the simultaneous switching on of a commensurate periodic potential, the latter providing a source of non-linearity that can cause inelastic scattering. A quantum kinetic equation is derived perturbatively in the periodic potential and solved within the leading order gradient expansion. A two-particle irreducible formalism is employed to construct the stress-momentum tensor and hence the conserved energy. The dynamics is studied in detail in the phase where the boson spectrum remains gapless. The periodic potential is found to give rise to multi-particle scattering processes that relaxes the boson distribution function. At long times the system is found to thermalize with a thermalization time that depends in a non-monotonic way on the amount of energy injected into the system due to the quantum quench. This non-monotonic behavior arises due to the competing effect of an increase of phase space for scattering on the one hand, and an enhancement of the orthogonality catastrophe on the other hand as the quench amplitude is increased. The approach to equilibrium is found to be purely exponential for large quench amplitudes, and more complex for smaller quench amplitudes.
description: 19 pages, 10 figures, published version
From mechanical folding trajectories to intrinsic energy landscapes of biopolymers
Creators: name: Hinczewski, Michael
name: Gebhardt, J. Christof M.
name: Rief, Matthias
name: Thirumalai, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biomolecules (q-bio.BM)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: In single molecule laser optical tweezer (LOT) pulling experiments a protein or RNA is juxtaposed between DNA handles that are attached to beads in optical traps. The LOT generates folding trajectories under force in terms of time-dependent changes in the distance between the beads. How to construct the full intrinsic folding landscape (without the handles and the beads) from the measured time series is a major unsolved problem. By using rigorous theoretical methods---which account for fluctuations of the DNA handles, rotation of the optical beads, variations in applied tension due to finite trap stiffness, as well as environmental noise and the limited bandwidth of the apparatus---we provide a tractable method to derive intrinsic free energy profiles. We validate the method by showing that the exactly calculable intrinsic free energy profile for a Generalized Rouse Model, which mimics the two-state behavior in nucleic acid hairpins, can be accurately extracted from simulated time series in a LOT setup regardless of the stiffness of the handles. We next apply the approach to trajectories from coarse grained LOT molecular simulations of a coiled-coil protein based on the GCN4 leucine zipper, and obtain a free energy landscape that is in quantitative agreement with simulations performed without the beads and handles. Finally, we extract the intrinsic free energy landscape from experimental LOT measurements for the leucine zipper, which is independent of the trap parameters.
description: Main text: 10 pages, 5 figures; SI: 23 pages, 7 figures
Generation of hyper-entangled photon pairs in coupled microcavities
Creators: name: Portolan, S.
name: Einkemmer, L.
name: Vörös, Z.
name: Weihs, G.
name: Rabl, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose and theoretically analyze a new scheme for generating hyper-entangled photon pairs in a system of polaritons in coupled planar microcavities. Starting from a microscopic model, we evaluate the relevant parametric scattering processes and numerically simulate the phonon-induced noise background under continuous-wave excitation. Our results show that, compared to other polariton entanglement proposals, our scheme enables the generation of photon pairs that are entangled in both path and polarization degrees of freedom, and simultaneously leads to a strong reduction of the photoluminesence noise background. This can significantly improve the fidelity of the entangled photon pairs under realistic experimental conditions.
description: Main paper + Supplementary Material
Nonlinear Dynamics of a position-dependent mass driven Duffing-type oscillator
Creators: name: Bagchi, Bijan
name: Das, Supratim
name: Ghosh, Samiran
name: Poria, Swarup
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We examine some nontrivial consequences that emerge from interpreting a position-dependent mass (PDM) driven Duffing oscillator in the presence of a quartic potential. The propagation dynamics is studied numerically and sensi- tivity to the PDM-index is noted. Remarkable transitions from a limit cycle to chaos through period doubling and from a chaotic to a regular motion through intermediate periodic and chaotic routes are demonstrated.
IMPLEMENTATION AND IMPACT OF THE SALT IODIZATION LAW IN THE PHILIPPINES
Creators: name: TINGCO, MADLYN D
name: DE ASIS, JEFFREY D
Publisher: name: Zenodo
Year: 2024
Subjects: Salt Industry, Salt Iodization, ASIN Law.

description: Abstract

The study re-examines the implementation of Republic Act No. 8172 or An Act for Salt Iodization Nationwide (ASIN) and its impact on salt producers or farmers. It presents the case of five salt-producing local government units (LGUs) in the Philippines. These LGUs are engaged in the production of “balara” (solar salt) which is not required to be iodized under the ASIN Law. Nevertheless, local officials and pertinent government agencies monitor the supply of commercial salt in their market to determine whether it is compliant with the required iodization content. The law needs to be strengthened not only to ensure strict compliance to salt iodization but to provide the necessary support to the local salt industry.
Whirling skirts and rotating cones
Creators: name: Guven, Jemal
name: Hanna, J A
name: Müller, Martin Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Physics (physics.class-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Mathematical Physics (math-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Steady, dihedrally symmetric patterns with sharp peaks may be observed on a spinning skirt, lagging behind the material flow of the fabric. These qualitative features are captured with a minimal model of traveling waves on an inextensible, flexible, generalized-conical sheet rotating about a fixed axis. Conservation laws are used to reduce the dynamics to a quadrature describing a particle in a three-parameter family of potentials. One parameter is associated with the stress in the sheet, aNoether is the current associated with rotational invariance, and the third is a Rossby number which indicates the relative strength of Coriolis forces. Solutions are quantized by enforcing a topology appropriate to a skirt and a particular choice of dihedral symmetry. A perturbative analysis of nearly axisymmetric cones shows that Coriolis effects are essential in establishing skirt-like solutions. Fully non-linear solutions with three-fold symmetry are presented which bear a suggestive resemblance to the observed patterns.
description: two additional figures, changes to text throughout. journal version will have a wordier abstract
title: Optimized dynamic load balancing in distributed exascale computing systems
Creators: name: Mirtaheri, Seyedeh Leili
name: Grandinetti, Lucio
Publisher: name: Università della Calabria
Year: 2016

description: Dottorato di Ricerca in Ricerca Operativa, Ciclo XXVII,a.a. 2015-2016
Cubed: Bounded-Memory Serverless Array Processing in Xarray
Creators: name: Nicholas, Tom
name: White, Tom
Publisher: name: Zenodo
Year: 2023

description: Cubed is an alternative framework for distributed processing of large arrays. Designed to respect memory constraints at all times, Cubed generalises the model of Rechunker to execute any numpy-like array operation. By using Zarr as persistent storage between steps, and Lithops as an abstraction layer, Cubed can run in a serverless fashion on a range of Cloud platforms. We will show how Cubed has been integrated with Xarray and demonstrate its performance on a tricky array workload.
title: Intellectual capital and firms' per formances: theoretical and empirical applications
Creators: name: Migliano, Giuseppe
name: Grandinetti, Lucio
name: Iazzolino, Gianpaolo
Publisher: name: Università della Calabria
Year: 2016

description: Dottorato di Ricerca Operational Research, XXVII Ciclo, a.a. 2015-2016
Das Landeshochschulgesetz und externe Hochschulsteuerung im Bereich offene Wissenschaft: Am Beispiel Berlin
Creators: name: Neufend, Maike
Publisher: name: Zenodo
Year: 2024
Subjects: Open Research
Open Access
Hochschulsteuerung
Landesinitiative

description: Mit dem Landeshochschulgesetz (LHG) üben Länder ihre Gesetzgebungshoheit im Hochschulbereich aus. Die Praktiken und Definitionen von offener Wissenschaft und die damit zusammenhängende Rolle der wissenschaftlichen Bibliotheken können in LHGs festgeschrieben werden. Am Beispiel von Berlin zeigt die Präsentation, welche Auswirkungen das BerlHG im Bereich offene Wissenschaft entfalten kann.
Multiple Criteria Problems over Minkowski Balls
Creators: name: Kutateladze, S. S
Publisher: name: arXiv
Year: 2013
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 52A40, 90B50

description: Under study are some vector optimization problems over the space of Minkowski balls, i.e., symmetric convex compact subsets in Euclidean space. A typical problem requires to achieve the best result in the presence of conflicting goals; e.g., given the surface area of a symmetric convex body $\mathfrak x$, we try to maximize the volume of $\mathfrak x$ and minimize the width of $\mathfrak x$ simultaneously.
description: 8 pages. arXiv admin note: substantial text overlap with arXiv:1208.6507
title: Ultrasonic investigation on elastic and mechanical properties of borate doped glass specimen
Creators: name: Thirumaran, S.
name: Priyadharsini, A.
name: Karthikeyan, N.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019

description: The present work divulges about ultrasonic characterization on the elastic and
mechanical properties of borate doped ternary glass systems. The Ultrasonic wave velocity
(longitudinal and shear) and density for the two ternary (B2O3-WO3-Bi2O3) BTB and
(B2O3-SiO2- Bi2O3) BSB glass systems have been measured at room temperature by using
Pulse–Echo technique at 5 MHz. The glass samples were prepared by melt-quenching
method. The measured experimental values have been utilized to evaluate the Elastic
modulus, Poisson’s ratio, Acoustic Impedance, Debye Temperature, and Thermal Expansion
Coefficient. The incorporation of heavy metal ion in BTB glass system is attributing for its
decrease of most of its parameters. The elevation of Debye Temperature in this study
advocates structural rigidity and compactness of BSB glass system over BTB glass system.
The trends of other evaluated parameters supporting this. The UV-Vis (DRS) study on the
band gap energies of these glass specimens confirming their amorphous nature and suggesting
their nature of rigidity.
Nonlocal electrodynamics of normal and superconducting films
Creators: name: Vestgarden, J. I.
name: Mikheenko, P.
name: Galperin, Y. M.
name: Johansen, T. H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Electrically conducting films in a time-varying transverse applied magnetic field are considered. Their behavior is strongly influenced by the self-field of the induced currents, making the electrodynamics nonlocal, and consequently difficult to analyze both numerically and analytically. We present a formalism which allows many phenomena related to superconducting and Ohmic films to be modelled and analyzed. The formalism is based on the Maxwell equations, and a material current-voltage characteristics, linear for normal metals, and nonlinear for superconductors, plus a careful account of the boundary conditions. For Ohmic films, we consider the response to a delta function source-field turned on instantly. As one of few problems in nonlocal electrodynamics, this has an analytical solution, which we obtain, in both Fourier and real space. Next, the dynamical behaviour of a square superconductor film during ramping up of the field, and subsequently returning to zero, is treated numerically. Then, this remanent state is used as initial condition for triggering thermomagnetic avalanches. The avalanches tend to invade the central part where the density of trapped flux is largest, forming dendritic patterns in excellent agreement with magneto-optical images. Detailed profiles of current and flux density are presented and discussed. Finally, the formalism is extended to multiply connected samples, and numerical results for a patterned superconducting film, a ring with a square lattice of antidots, are presented and discussed.
description: 25 pages, 10 figures
title: Femtosecond transient absorption spectroscopy of maghemite nanoparticles loaded with gold nanoparticles
Creators: name: Okazaki, Masahiro
name: Ishii, Yusuke
name: Furube,  Akihiro
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019

description: Photocatalytic water splitting is very useful for solar energy conversion. Iron oxides are attracting a lot of interests due to absorption in the visible region. However, iron oxides have poor conductivity. As one of solutions, the photocatalytic performance may be enhanced with loaded gold nanoparticles (Au-NP) by the characteristic optical absorption and
the charge trapping nature. In this study, hybrid material of maghemite (γ-Fe2O3) and Au-NP (denoted as Au-Fe2O3) was prepared and the photo-generated carrier dynamics was revealed by femtosecond transient absorption (TA) spectroscopy. The hybrid material was prepared by mixing maghemite powder into 40 nm Au-NP aqueous solution. TA decay of Au-Fe2O3
indicates faster decay and suggests occurrence of hole transfer from maghemite to Au-NP, which can suppress the charge recombination and may result in enhancement of the photocatalytic reactivity.
Modulational instabilities in lattices with power-law hoppings and interactions
Creators: name: Gori, Giacomo
name: Macri, Tommaso
name: Trombettoni, Andrea
Publisher: name: arXiv
Year: 2012
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the occurrence of modulational instabilities in lattices with non-local, power-law hoppings and interactions. Choosing as a case study the discrete nonlinear Schrödinger equation, we consider one-dimensional chains with power-law decaying interactions (with exponent α) and hoppings (with exponent β): An extensive energy is obtained for α, β>1. We show that the effect of power-law interactions is that of shifting the onset of the modulational instabilities region for α>1. At a critical value of the interaction strength, the modulational stable region shrinks to zero. Similar results are found for effectively short-range nonlocal hoppings (β> 2): At variance, for longer-ranged hoppings (1 < β< 2) there is no longer any modulational stability. The hopping instability arises for q = 0 perturbations, thus the system is most sensitive to the perturbations of the order of the system's size. We also discuss the stability regions in the presence of the interplay between competing interactions - (e.g., attractive local and repulsive nonlocal interactions). We find that noncompeting nonlocal interactions give rise to a modulational instability emerging for a perturbing wave vector q = πwhile competing nonlocal interactions may induce a modulational instability for a perturbing wave vector 0 < q < π. Since for α> 1 and β> 2 the effects are similar to the effect produced on the stability phase diagram by finite range interactions and/or hoppings, we conclude that the modulational instability is "genuinely" long-ranged for 1 < β< 2 nonlocal hoppings.
description: Published version, one section added, 19 pages, 12 figures
Current-field diagram of magnetic states of a surface spin valve in a point contact with a single ferromagnetic film
Creators: name: Yanson, I. K.
name: Balkashin, O. P.
name: Fisun, V. V.
name: Yanson, Yu. I.
name: Naidyuk, Yu. G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a study of the influence of an external magnetic field H and an electric current I on the spin-valve (SV) effect between a ferromagnetic thin film (F) and a sharp tip of a nonmagnetic metal (N). To explain our observations, we propose a model of a local surface SV which is formed in such a N/F contact. In this model, a ferromagnetic cluster at the N/F interface plays the role of the free layer in this SV. This cluster exhibits a larger coercive field than the bulk of the ferromagnetic film, presumably due to its nanoscale nature. Finally, we construct a magnetic state diagram of the surface SV as a function of I and H.
description: 7 pages and 5 figs. in pdf file, final version is published in Fiz. Nizk. Temp. with free access after registration: http://fnte.ilt.kharkov.ua/main.php?page=10
On the Number of Eisenstein Polynomials of Bounded Height
Creators: name: Heyman, Randell
name: Shparlinski, Igor E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We obtain a more precise version of an asymptotic formula of A. Dubickas for the number of monic Eisenstein polynomials of fixed degree $d$ and of height at most $H$, as $H\to \infty$. In particular, we give an explicit bound for the error term. We also obtain an asymptotic formula for arbitrary Eisenstein polynomials of height at most $H$.
Sima morondaviensis Roger 1863, nov. st.
Creators: name: Forel, A.
Publisher: name: L'Imprimerie Nationale
Year: 1891
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Sima

description: RACE: SIMA MORONDAVIENSIS, nov. st.
[[worker]]. Longueur 4,5 mill. Diffère de l'espèce typique par les caractères suivants:
Moitié postérieure de la tête distinctement élargie, avec les côtés convexes. Trois fossettes vides au lieu et place des ocelles. Pédicule sensiblement plus court; le premier n œ ud est plus court, assez atténué au sommet; le second n œ ud est aussi plus court, plutôt plus large que long. Premier segment abdominal plus court et plus élargi en arrière. Face déclive du métanotum beaucoup plus courte que la face basale (chez la S. Sahlbergii i. sp., elle est seulement un peu plus courte et le métanotum est plus élevé). Pubescence couchée grisâtre beaucoup plus abondante et un peu plus longue, très apparente (abondante sur les tibias et les scapes). Les 2/5 antérieurs de la tête rougeâtres.
Base des f'unicules et scapes entiers d'un jaune rougeâtre. Du reste identique à la forme typique.
Morondava (côte Ouest de Madagascar). Récoltée par M. Grevé.
Malgré les différences indiquées, je ne crois devoir faire qu'une race de cette forme, car elle a toutes les particularités de la S. Sahlbergii.
description: Published as part of Forel, A., 1891, Histoire naturelle des Hymenopteres. Deuxieme partie: Les Formicides., pp. 1-231 in Histoire Physique, Naturelle et Politique de Madagascar., Paris :L'Imprimerie Nationale on page 206, DOI: 10.5281/zenodo.9896
The ridgelet transform of distributions
Creators: name: Kostadinova, Sanja
name: Pilipovic, Stevan
name: Saneva, Katerina
name: Vindas, Jasson
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 44A15, 46F12. Secondary 42C20, 44A12, 44A35

description: We define and study the ridgelet transform of (Lizorkin) distributions. We establish connections with the Radon and wavelet transforms.
description: 17 pages
Generalized One-Particle Density Matrices and Quasifree States
Creators: name: Bach, Volker
name: Breteaux, Sébastien
name: Knörr, Hans Konrad
name: Menge, Edmund
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81V70

description: In the spirit of the generalized one-particle density matrix for fermions, we introduce generalized one- and two-particle density matrices to state representability conditions up to second order for boson systems without assuming particle number-conservation. Furthermore, we show for both particle species that, for a semibounded Hamiltonian, the in?mum of the variation of the energy functional w.r.t quasifree states coincides with the one of a variation over pure quasifree states. Moreover, it is proven for fermions that only pure quasifree states have a generalized 1-pdm that is a projection, and a similar statement for bosons.
Space-Time Resolved Capillary Wave Turbulence
Creators: name: Berhanu, Michael
name: Falcon, Eric
Publisher: name: arXiv
Year: 2012
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 76B15, 76B45, 76F02,

description: We report experiments on the full space and time resolved statistics of capillary wave turbulence at the air-water interface. The three-dimensional shape of the free interface is measured as a function of time by using the optical method of Diffusing Light Photography associated with a fast camera. Linear and nonlinear dispersion relations are extracted from the spatio-temporal power spectrum of wave amplitude. When wave turbulence regime is reached, we observe power-law spectra both in frequency and in wave number, whose exponents are found in agreement with the predictions of capillary wave turbulence theory. Finally, the temporal dynamics of the spatial energy spectrum highlight the occurrence of stochastic bursts transferring wave energy through the spatial scales.
description: 6 pages, 6 figures
title: ЭФФЕКТИВНОСТЬ ВОЗРАСТНОГО ПОДБОРА В СЕЛЕКЦИИ ОВЕЦ
Creators: name: Лобанов, П.В.
name: Гайдашов, С.И.
name: Омаров, А.А.
Publisher: name: ФГБНУ "Северо-Кавказский федеральный научный аграрный центр"
Year: 2019

description: Приводятся данные о динамике живой массы, мясной и шерстной продуктивности молодняка овец, полученного от одновозрастного и разновозрастного подбора родительских пар.