cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
History matters for the export decision and the volume exported: Firm-level evidence from French agri-food firms
Creators: name: Latouche, Karine
name: Shonkwiler, John Scott
name: Chevassus-Lozza, Emmanuelle
name: Latouche, Karine
name: Shonkwiler, John Scott
name: Chevassus-Lozza, Emmanuelle
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: International Relations/Trade
subject: dynamic tobit model
subject: French agri-food firms
subject: exports
subject: destination markets

description: As a result of the rapid growth of microeconometric studies of exporting firms, we know quite a lot about the hysteresis occurring in the current decision of firms to export. Firms entering a foreign market the previous year are more likely to export the current year. This fact is traditionally interpreted as a consequence of sunk export costs at entry to the international market. These costs are for instance the knowledge of foreign markets, the search for new distribution networks, or the compliance with border crossing standards specific to a given market. The specificity of the destination market appears as being of huge importance for the firms. Papers in this field propose to test for the existence of sunk-cost hysteresis by analysing entry and exit patterns in plant-level panel data, whatever the destination market. Roberts and Tybout (1997) or Özler et al. (2009) develop and estimate a dynamic discrete-choice model of the plant’s current exporting status in Colombia or Turkey respectively. Only a few studies have accounted either for the destination of the exports or for the volume exported. Blanes-Cristobal et al. (2008) show that previous experience on a market has a positive impact on the probability of current export on this market. Das et al. (2007) consider both the decision to export and the value exported in a dynamic model. They show that entry costs on international markets (whatever the destination market) are substantial. The questions addressed by this study are: Are sunk costs a feature of the firm's export behavior (decision and volume) and do they vary across export markets? A multivariate dynamic panel model of French agribusiness firms' exports to two aggregate markets (EU and Rest of the World) is specified. The model accounts for both zero level and positively skewed exports by adopting the Cragg (1971) logarithmic Tobit model. Unobserved firm-level heterogeneity is accounted for by introducing random effects which may be correlated across export markets. The initial conditions problem is treated by assuming that a component of the unobserved firm effect is conditional on initial values and exogenous variables (Wooldridge, 2005). As a consequence the degree of structural state dependence can be estimated for each export market. Previous export experience in both markets is hypothesized to impact both the decision to export and the level of exports in each market.
XAVFSIZ TURIZMNI TA'MINLASH SOHASIDA ICHKI ISHLAR VA MILLIY GVARDIYA ORGAN XODIMLARILARINING  HAMKORLIGI
Creators: name: Gulyamov Kaxramon Davronovich,  O'zbekiston Respublikasi IIV Samarqand viloyati IIB  Xavfsiz turizmni ta'minlash boshqarmasi xodimi.
Publisher: name: Zenodo
Year: 2024

description: Maqolada O‘zbekiston Respublikasi Ichki ishlar organlarining xavfsiz turizmni ta’minlash sohasida Milliy gvardiya va boshqa davlat organlari bilan hamkorlik qilish masalalari tahlil qilinadi. Turizm sohasida xavfsizlikni ta’minlash bo‘yicha amalga oshiriladigan choralar, davlat organlari o‘rtasidagi hamkorlik mexanizmlari va huquqiy asoslari tadqiq qilinadi. Shuningdek, xavfsiz turizmni ta’minlashda samarali hamkorlikning ahamiyati yoritiladi.

Kalit so‘zlar: xavfsiz turizm, Ichki ishlar organlari, Milliy gvardiya, davlat organlari, hamkorlik, huquqiy asoslar.
title: Механохимическое этоксилирование бензойной кислоты и ее галогенпроизводных
Creators: name: Хилько, Светлана
name: Невечеря, Оксана
name: Макарова, Раиса
name: Семенова, Римма
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Методом механохимического твердофазного синтеза в вибрационном аппарате получены этоксилированные производные галогензамещенных бензойных кислот. Продукты реакции охарактеризованы методами ИК-спектроскопии и кислотно-основного потенциометрического титрования. Показано, что в результате реакций этоксилирования происходят изменения в ИК-спектрах продуктов реакции по сравнению с исходными реагентами. Полосы поглощения колебаний карбонильной группы кислот при образовании продуктов реакции смещаются в высокочастотную область. Методом потенциометрического титрования растворов галогенсодержащих бензойных кислот и продуктов их взаимодействия с полиэтиленгликолем установлено уменьшение количества карбоксильных групп в этоксилированном образце. Согласно данным ИК-спектроскопии и потенциометрического титрования взаимодействие бензойных кислот с полиэтиленгликолем протекает по карбоксильной группе.
title: Role of Connexin 62 (Cx62) in platelets
Creators: name: Sahli, Khaled Ali Y
Publisher: name: University of Reading
Year: 2023

description: Introduction: Connexins (Cxs), a large family of proteins, are expressed in numerous mammalian cells. Cxs oligomerise into hexameric hemichannels in the plasma membrane. The hemichannels on adjacent cells can dock together to form gap junctions (GJs), which regulate the direct trafficking of molecules (up to approximately 1 kDa) from one cell to another, and serve to allow coordinated responses between cells in tissues. Cx37 and Cx40 are expressed in human platelets and their selective inhibition in human platelets or deletion in transgenic mice attenuates platelet function. Notable levels of Cx62 transcripts have been reported in megakaryocytes, although nothing is known of the protein expression or function of this relatively recently discovered Cx in any tissue. The objective of this study was to determine the role of Cx62 in human platelets. Results: The expression of Cx62 in human and mouse (Cx57, mouse homologue) platelets was confirmed by western blotting and immunocytochemistry. A novel mimetic peptide that targets the second extracellular loop of Cx62 was designed in this study. The newly designed Cx62 mimetic peptide, 62Gap27, reduced hemichannel permeability and GJ-mediated intercellular communication. Several features of agonist-induced platelet activation, such as aggregation, degranulation, fibrinogen binding to integrin αIIbβ3, Ca2+ mobilisation and integrin αIIbβ3 outside-in signalling (which controls clot retraction and spreading), were inhibited by 62Gap27. No effects were observed after treatment with the scrambled peptide control. The selectivity of 62Gap27 for Cx62 was confirmed using Cx57 knockout mice. Additionally, Cx62 hemichannels were observed to function independently of Cx37 and Cx40 hemichannels. Thrombus formation (in vitro and in vivo) and tail bleeding were inhibited substantially by 62Gap27, suggesting that Cx62 regulates thrombosis and haemostasis, respectively. III Experiments performed to explore the effects of Cx62 inhibition on platelet signalling revealed that treatment with 62Gap27 can negatively-regulate tyrosine phosphorylation of multiple glycoprotein VI (GPVI) signalling mediators, including Syk, LAT phospholipase Cγ2; it also negatively regulates PKC substrate phosphorylation. In addition, treatment of resting and activated platelets with 62Gap27 increased protein kinase A (PKA) activation, as observed via vasodilator-stimulated phosphoprotein VASP S157 phosphorylation. This activation was induced in a cyclic adenosine monophosphate (cAMP) -independent manner. Conclusion: Cx62 and Cx57 are expressed in human and mouse platelets, respectively, where they play a fundamental role in platelet function, thrombus formation, and thereby haemostasis and thrombosis. Future work is required to determine the protein interactions of Cx62 and the mechanisms that allow platelets to control Cx function. Furthermore, the nature of the molecules that traffic through Cx62 hemichannels in isolated platelets or GJs within a thrombus also requires investigation.
A unification of finite deformation $J_2$ Von-Mises plasticity and quantitative dislocation mechanics
Creators: name: Arora, Rajat
name: Acharya, Amit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a framework which unifies classical phenomenological $J_2$ and crystal plasticity theories with quantitative dislocation mechanics. The theory allows the computation of stress fields of arbitrary dislocation distributions and, coupled with minimally modified classical ($J_2$ and crystal plasticity) models for the plastic strain rate of statistical dislocations, results in a versatile model of finite deformation mesoscale plasticity. We demonstrate some capabilities of the framework by solving two outstanding challenge problems in mesoscale plasticity: 1) recover the experimentally observed power-law scaling of stress-strain behavior in constrained simple shear of thin metallic films inferred from micropillar experiments which all strain gradient plasticity models overestimate and fail to predict; 2) predict the finite deformation stress and energy density fields of a sequence of dislocation distributions representing a progressively dense dislocation wall in a finite body, as might arise in the process of polygonization when viewed macroscopically, with one consequence being the demonstration of the inapplicability of current mathematical results based on $\mathrmΓ$-convergence for this physically relevant situation. Our calculations in this case expose a possible `phase transition' - like behavior for further theoretical study. We also provide a quantitative solution to the fundamental question of the volume change induced by dislocations in a finite deformation theory, as well as show the massive non-uniqueness in the solution for the (inverse) deformation map of a body inherent in a model of finite strain dislocation mechanics, when approached as a problem in classical finite elasticity.
description: arXiv admin note: text overlap with arXiv:2004.04201
Seeking refuge : making space for migratory waterfowl and wetlands along the Pacific flyway
Creators: name: Wilson, Robert Michael
Publisher: name: University of British Columbia
Year: 2009

description: "Seeking Refuge" examines the history of migratory waterfowl management along the Pacific Flyway, the westernmost of four main migration routes in North America. Drawing on approaches from historical geography and environmental history, this study shows how wildlife officials developed migratory bird refuges in Oregon and California, where over 60 percent of Pacific Flyway waterfowl winter. During the early-twentieth century, reclamation and river diking eliminated most of the wetlands in the birds' wintering range. Bird enthusiasts such as bird watchers and duck hunters successfully lobbied for the creation of wildlife refuges in a few areas along the flyway. These early refuges failed to protect waterfowl habitat and they were severely degraded by reclamation. In the 1930s and 1940s, the U.S. Fish and Wildlife Service (FWS) and its predecessor, the Bureau of Biological Survey, undertook an ambitious program to resurrect these sanctuaries and to create new ones. Many farmers opposed these refuges out of fear that waterfowl would damage crops. To respond to these concerns and to ensure an adequate food supply for the birds, the FWS raised rice, barley, and other crops. The agency adopted many of the technologies of modern, industrial agriculture including synthetic herbicides and insecticides such as 2, 4-D and DDT. By the 1960s, the refuges had become largely mirrors of the surrounding irrigated farmlands, the main difference being that the FWS raised grain for waterfowl rather than for market. Refuges could not escape the agricultural settings in which they were embedded. As units within the irrigated countryside, Pacific Flyway refuges were often at the mercy of nearby farmers and federal reclamation agencies. Poor water quality and insufficient supplies of water often hampered FWS efforts to manage refuges. In the late-twentieth century, reduced water supply due to diversions to California municipalities and to sustain endangered fish species affected the amount of water reaching refuges. This dissertation has other goals. First, it critiques the anthropocentrism of most historical geography by focusing on how political, cultural, and ecological factors affected wildlife. Second, it contributes to the literature on the state's role in environmental protection by investigating the overlapping, and often contradictory, spaces within which wildlife managers implemented environmental regulations.
Poisson-Lie T-plurality of three-dimensional conformally invariant sigma models II: Nondiagonal metrics and dilaton puzzle
Creators: name: Hlavaty, L.
name: Snobl, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We look for 3-dimensional Poisson-Lie dualizable sigma models that satisfy the vanishing beta-function equations with constant dilaton field. Using the Poisson-Lie T-plurality we then construct 3-dimensional sigma models that correspond to various decompositions of Drinfeld double. Models with nontrivial dilaton field may appear. It turns out that for ``traceless'' dual algebras they satisfy the vanishing beta-function equations as well. In certain cases the dilaton cannot be defined in some of the dual models. We provide an explanation why this happens and give criteria predicting when it happens.
description: 24 pages, the published version; changes compared to v1: typos corrected, conclusions extended, added references
O'ZBEKISTONDA QADRIYATLARNING  O'ZGARIB BORISH SHAROITIDA YOSH OILALARNING MUSTAHKAMLIGINI TA'MINLASH KELAJAGI
Creators: name: "Oila va gender" ilmiy-tadqiqot institutining tayanch doktoranti Inagamova Feruza Xurshitovna
Publisher: name: Zenodo
Year: 2024

description: Bugungi kunda O‘zbekiston yoshlar mamlakati sifatida dunyoga namoyon bo‘lmoqda. Butun dunyoda demografik kapitalning ahamiyati tobora oshib borayotgan globallashuv davrida aholi tarkibidagi yoshlarning ulushi ko‘pchilikni tashkil etishi mazkur mamlakatning yaqin kelajakdagi potensial istiqbolidan dalolat beradi. O‘zbekiston Respublikasi Prezidenti huzuridagi Statistika agentligining ma’lumotlariga ko‘ra, 2023-yilning 1-yanvar holati bo‘yicha 36 million nafardan ortiq umumiy aholimizning 19,2 million nafari yoki 53 foizini 30 yoshgacha bo‘lgan yoshlar tashkil etadi[1]. Bu ko‘rsatkich mamlakatning asosiy resursi hisoblanuvchi inson kapitalining istiqboliga ishora qiladi. Chunki aynan yoshlar bugungi kunda mamlakatning ijtimoiy taraqqiyoti, ertangi kelajagi hamda jahon hamjamiyatidagi o‘rnini belgilab beruvchi omil, mamlakatning bebaho boyligi hamda asosiy resursi hisoblanadi.

[1] Aholining yosh tarkibi bo’yicha taqsimlanishi – Jami // https://api.stat.uz/api/v1.0/data/aholining-yosh-tarkibi-boyicha-taqsimlanishi?lang=uz&format=pdf
Implications of Immigration Policies for the U.S. Farm Sector and Workforce
Creators: name: Devadoss, Stephen
name: Luckstead, Jeff
name: Devadoss, Stephen
name: Luckstead, Jeff
Publisher: name: Unknown
Year: 2010
Subjects: subject: International Relations/Trade
subject: Labor and Human Capital
subject: agriculture
subject: exports
subject: immigration
subject: labor

description: We develop a theoretical model using migration and trade theory to examine the effects of domestic and border enforcement policies on unauthorized workers and the U.S. agricultural sector. The theoretical results show that heightened immigration policies increase the illegal farm wage rate, and reduce the employment of unauthorized farm workers and exports. The empirical analysis show that increased domestic enforcements curtail the number of undocumented farm workers by an average of 8947 and commodity exports to Mexico by an average of $180 million. The tighter border control curbs illegal farm workers by 8147 and reduces farm exports by $181 million.
Algorithm Development For AnAutomated Memristor Control On ANeuromorphic Demonstrator Chip
Creators: name: Zhao, Wei
Publisher: name: Forschungzentrum Jülich
Year: 2024

description: Masterarbeit, TU Munich, 2024; 161 pp. (2024). = Masterarbeit, TU Munich, 2024
description: Advancements on in-memory technology have positioned memristors at the fore-front of non-volatile memory applications, necessitating precise control mecha-nisms to accurately program memristor cells to their respective states. Whilecommercial memristor applications primarily focus on binary data storage, theunique requirements of neuromorphic computing necessitate the ability to handlea wide range of analog values for synaptic emulation. This thesis explores theutilization of a RISC-V processor and pulse-width modulation generators to con-figure registers for analog conductance control within a crossbar memristor arrayarchitecture. The system incorporates mechanisms to read back the programmedresistance values using an analog-to-digital converter, compare these resistance val-ues to the expected outcomes, and minimize any discrepancies, thereby facilitatingaccurate voltage and current mode operations.The core contribution of this research is the development of a flexible and effi-cient control algorithm, along with an error correction algorithm specifically de-signed for the RISC-V architecture. By leveraging these algorithms, the systemcan dynamically adjust and correct the states of memristor cells, ensuring highprecision and reliability in memory operations tailored for neuromorphic comput-ing.To validate the control signals generated by the proposed algorithms, a UniversalVerification Methodology Framework testbench is employed. This comprehensiveverification process ensures that the control mechanisms are accurate and reliablebefore proceeding to hardware implementation.The results from our study indicate significant enhancements in control effi-ciency, demonstrating the potential for seamless integration of RISC-V processorswith memristor technology. This integration paves the way for advanced non-volatile memory solutions that are both robust and highly efficient, marking anotable step forward in the field of memory technology and specifically addressingthe needs of neuromorphic computing.
A First Look at Requests and Refusals in Ihanzu
Creators: name: Schubert, Raoul
Publisher: name: Zenodo
Year: 2024
Subjects: Languages of Tanzania
Tanzanian Rift Valley
Niger-Congo
Bantu
Ihanzu
Isanzu
Pragmatics
Requests
Refusals

description: A presentation on the pragmatics of requests and refusals in Ihanzu
description: Note: This talk has not gone through a process of peer review, and findings should therefore be treated as preliminary and subject to change. Acknowledgement and citation: Schubert, Raoul. 2024. A first look at requests and refusals in Ihanzu. Talk given at the Ihanzu Symposium 2024. Bielefeld University, Germany. 30.09.2024.
Discrete choice models, which one performs better?
Creators: name: Gallardo, Rosa Karina
name: Chang, Jae Bong
name: Gallardo, Rosa Karina
name: Chang, Jae Bong
Publisher: name: Unknown
Year: 2010
Subjects: subject: Research Methods/ Statistical Methods
subject: multinomial logit model
subject: error components
subject: random parameters
subject: discrete choice

description: For over the last thirty years the multinomial logit model has been the standard in choice modeling. Development in econometrics and computational algorithms has led to the increasing tendency to opt for more flexible models able to depict more realistically choice behavior. This study compares three discrete choice models, the standard multinomial logit, the error components logit, and the random parameters logit. Data were obtained from two choice experiments conducted to investigate consumers’ preferences for fresh pears receiving several postharvest treatments. Model comparisons consisted of in-sample and holdout sample evaluations. Results show that product characteristics hence, datasets, influence model performance. We also found that the multinomial logit model outperformed in at least one of three evaluations in both datasets. Overall, findings signal the need for further studies controlling for context and dataset to have more conclusive cues for discrete choice models capabilities.
The impact of metallic contacts on spin-polarized photocurrents in topological insulator $\text{Bi}_2\text{Se}_3$ nanowires
Creators: name: Meyer, Nina
name: Geishendorf, Kevin
name: Walowski, Jakob
name: Thomas, Andy
name: Münzenberg, Markus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recently, a new quantum phase, the topological insulator, has been vividly investigated in a variety of materials. Its unique bandstructure allows for optical generation and control of spin-polarized currents based on the circular photogalvanic effect. In this paper, we generate and distinguish the different photocurrent contributions via the the polarization of the driving light wave. We discuss the helicity-dependent spin-polarized current and the polarization independent thermoelectric current as spatially resolved maps, focusing on the influence of the topological insulator/metallic contact interface. We observe for both current contributions a significant enhancement of the current values at the topological insulator/metallic contact interface and moreover a dipole-like distribution of the spin-polarized current close to the contacts. We discuss the general behavior of the thermovoltage as a three-material Seebeck effect and explain the enhanced values by the acceleration of the photoelectrons generated in the space charge region of the topological insulator/metallic contact interface. Furthermore, we interpret the temperature gradient together with the spin Nernst effect as a possible origin for the enhancement and dipole-like distribution of the spin-polarized current.
description: 6 pages, 3 figures
Thermal entanglement in a two-qubit Heisenberg XXZ spin chain under an inhomogeneous magnetic field
Creators: name: Zhang, Guo-Feng
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The thermal entanglement in a two-qubit Heisenberg \emph{XXZ} spin chain is investigated under an inhomogeneous magnetic field \emph{b}. We show that the ground-state entanglement is independent of the interaction of \emph{z}-component $J_{z}$. The thermal entanglement at the fixed temperature can be enhanced when $J_{z}$ increases. We strictly show that for any temperature \emph{T} and $J_{z}$ the entanglement is symmetric with respect to zero inhomogeneous magnetic field, and the critical inhomogeneous magnetic field $b_{c}$ is independent of $J_{z}$. The critical magnetic field $B_{c}$ increases with the increasing $|b|$ but the maximum entanglement value that the system can arrive becomes smaller.
description: 5 EPS figures
title: Temporal sensitivity of rice seed quality development to environmental stress
Creators: name: Abdul Rahman, Siti Maslizah Binti
Publisher: name: University of Reading
Year: 2018

description: High temperature and drought, together or alone, reduce rice (Oryza sativa L.) crop yield. Their effect at different periods during seed development and maturation on rice seed quality, and its development, was investigated with pot-grown plants in controlled-environment growth cabs (28/20°C,11h/13h) or glass-houses (28/20℃, 12h/12h). Ending irrigation early in japonica rice cv. Gleva at early- to mid-seed filling (7 or 14 days after anthesis, DAA) resulted in earlier plant senescence, more rapid decline in seed moisture content and initially more rapid seed quality development, but subsequently substantial decline in planta in ability to germinate normally. Subsequent seed storage longevity at 40℃ with c. 15% moisture content was ultimately greatest in the control (no drought); both drought treatments declined in subsequent longevity in planta from 16 or 22 DAA onwards, respectively. A similar investigation but with drought applied later (14 or 28 DAA) also showed poorer seed longevity in drought treatments at harvest maturity (42 DAA). In both investigations, the earlier the drought the greater the damage to subsequent seed quality. Well-irrigated plants exposed to 40/30℃ for 3 days provided poorer subsequent seed quality (shorter longevity) the earlier during development they received high temperature (HT) treatment. The effect was greatest with HT at around anthesis and histodifferentiation, with no effect of HT during the seed maturation phase. Damage to seed quality from combining both stresses (drought, HT) was greater than each alone; indica rice cv. Aeron 1 was affected less by these stresses than japonica cv. Gleva. It is concluded that drought, as well as HT, damages subsequent seed quality in rice, the period around anthesis is the most vulnerable stage of plant development for such damage to seed, and seed quality in japonica rices is more vulnerable than in indica rices to stress in the production environment
Co-training for On-board Deep Object Detection
Creators: name: Villalonga, Gabriel
name: Lopez, Antonio M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Providing ground truth supervision to train visual models has been a bottleneck over the years, exacerbated by domain shifts which degenerate the performance of such models. This was the case when visual tasks relied on handcrafted features and shallow machine learning and, despite its unprecedented performance gains, the problem remains open within the deep learning paradigm due to its data-hungry nature. Best performing deep vision-based object detectors are trained in a supervised manner by relying on human-labeled bounding boxes which localize class instances (i.e.objects) within the training images.Thus, object detection is one of such tasks for which human labeling is a major bottleneck. In this paper, we assess co-training as a semi-supervised learning method for self-labeling objects in unlabeled images, so reducing the human-labeling effort for developing deep object detectors. Our study pays special attention to a scenario involving domain shift; in particular, when we have automatically generated virtual-world images with object bounding boxes and we have real-world images which are unlabeled. Moreover, we are particularly interested in using co-training for deep object detection in the context of driver assistance systems and/or self-driving vehicles. Thus, using well-established datasets and protocols for object detection in these application contexts, we will show how co-training is a paradigm worth to pursue for alleviating object labeling, working both alone and together with task-agnostic domain adaptation.
DYNAMIC STABILITY OF THE MODERNIZED MINE CLEARING TRAWL UNDER THE ACTION OF EXPLOSIVE WAVE
Creators: name: Andriienko, A.
name: Nanivskyi, R.
name: Yemelianov А.
name: Kulchitskiy, S.
name: Malinovskiy, N.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: explosive wave
the pressure force of explosive wave
trawl
trawl dynamics.

description: For a trawl with a modernized working body in the form of a U-shaped system of rockers and disks at the ends, a method of studying the dynamic stability under the action of a single mine explosion was developed. The technique is based on: a ratio that describes the dependence of the shock wave pressure on the distance; adaptation of this ratio to determine the force action of the explosion on the main parts of the trawl; the interaction mechanism of working disks with the soil of a minefield; kinematic ratios of the U-shaped working body of the modernized trawl; equations of kinetostatics for the relative motion of the trawl as a mechanical system. According to physically substantiated assumptions, the integral force dynamic actions of a single explosion on separate parts of the trawl have been determined. It is shown that they depend on their configuration, the depth of the mine, the distance of the mine center to the trawl parts, the magnitude of its charge in TNT equivalent. The integral force actions of the explosion on the trawl elements together with the stationary force action on the trawl (gravity force of separate parts) and the main ratio, which follows from the kinetostatics, allow to estimate the dynamic stability of the trawl. As for the main vector of explosive action on the trawl, which plays a dominant role in the assessment of dynamic stability, it is largely determined by the action of the explosive wave on the working disk, the force of which on the mine causes its explosion. In addition, the larger is the diameter of the disk, its thickness, the area of the longitudinal section of the rocker and the shorter is the distance between the working disk and the mine, the greater is dynamic explosive action on the trawl, and therefore the probability of losing dynamic stability. As for the configuration of the trawl (at constant dimensions), the dynamic explosive action on the trawl is greater if the angle between the legs of the rocker is smaller. The ratios obtained in the work can be the basis for selecting the optimal parameters during the modernization of the trawl in the working bodies, as well as determining its loading required for mine explosion in minefields with a large modulus value of soil elasticity. By generalizing the results obtained in the work, the relations concerning the dynamic action on roller trawls are obtained with a sufficient degree of accuracy. A comparative analysis of the dynamic explosive action on the roller trawl and trawl with a modernized working body suggests that the modernization of the trawl working body significantly increases its motion stability and maneuverability.
Khung năng lực Tài nguyên Giáo dục Mở cho giảng viên và gợi ý xây dựng mô hình nguồn tài nguyên giáo dục mở
Creators: name: Nghĩa, Lê Trung
Publisher: name: Zenodo
Year: 2024

description: Bài trình chiếu để sử dụng trong các cuộc hội thảo/tọa đàm với các chủ đề liên quan tới Khung năng lực Tài nguyên Giáo dục Mở cho giảng viên và mô hình nguồn tài nguyên giáo dục mở.
THE IMPROVED TECHNIQUE OF COMBINED ARMS FORCE LOGISTICS SUPPORT SYSTEM EFFICIENCY EVALUATION AMIDST COMBAT ACTIONS
Creators: name: Baranov Yu.
name: Komarov, V.
name: Maliuk, V.
name: Kyrylchuk, V.
name: Danylov, D.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: logistics support
combined arms force
combat actions
survivability
materiel.

description: The article is written on a highly topical issue related to improving the efficiency of the logistics support system operability. The purpose of the article is to improve the technique for evaluating the efficiency of the logistics support system of the combined arms force under conditions of combat actions. The essence of the technique, that determines its novelty, is to take into account the possibility of substantiating indicators and criteria for evaluating the survivability of the logistics support system and their impact on the efficiency of the system operability as a whole through employment of existing models for evaluating the survivability of logistics support subsystem under conditions of combat actions.
Trends in clinical practice research (Roberts et al., 2020)
Creators: name: Roberts, Megan Y.
name: Sone, Bailey J.
name: Zanzinger, Katherine E.
name: Bloem, Marie E.
name: Kulba, Kara
name: Schaff, Allyson
name: Davis, Kelly C.
name: Reisfeld, Nicole
name: Goldstein, Howard
Publisher: name: ASHA journals
Year: 2020
Subjects: subject: 200101 Communication Studies
subject: FOS: Media and communications
subject: Language
subject: 170204 Linguistic Processes (incl. Speech Production and Comprehension)
subject: FOS: Psychology

description: Purpose: Despite the American Speech-Language-Hearing Association’s (ASHA) endorsement of evidence-based practice (EBP) and speech-language pathologists’ (SLPs’) agreement on the importance of EBP, practicing clinicians report barriers to implementing EBP. The purpose of this study was to examine trends in clinical practice research published in ASHA journals over the past 11 years (2008–2018).Method: A total of 2,483 articles from the American Journal of Speech-Language Pathology; Language, Speech, and Hearing Services in Schools; and Journal of Speech, Language, and Hearing Research were extracted for coding. Coders were licensed SLPs who were trained to 80% reliability on classifying the type of research in each article. Clinical practice research articles were further classified as studies on assessment, studies on intervention, and studies that explore the implementation of EBP.Results: Clinical practice research comprised the minority of literature published in ASHA journals in the field of speech-language pathology (25%). These articles were composed of assessment (10%), intervention (15%), and implementation (< 1%). These articles were distributed across a variety of primary content areas, with an absence of implementation science for the majority of clinical areas.Conclusions: The lack of clinical practice research readily available to practicing SLPs is a barrier to EBP. The results of this study underscore the need for increased clinical practice research. Future work should investigate EBP in the context of clinician–researcher partnerships and increasing the capacity of clinicians to conduct clinical practice research.
Supplemental Material S1. Supplemental citations.
Roberts, M. Y., Sone, B. J., Zanzinger, K. E., Bloem, M. E., Kulba, K., Schaff, A., Davis, K. C., Reisfeld, N., & Goldstein, H. (2020). Trends in clinical practice research in ASHA journals: 2008–2018. American Journal of Speech-Language Pathology. Advance online publication. https://doi.org/10.1044/2020_AJSLP-19-00011
Collective Action for Watershed Management: Field Experiments in Colombia and Kenya
Creators: name: Cardenas, Juan-Camilo
name: Rodriguez, Luz Angela
name: Johnson, Nancy L.
name: Cardenas, Juan-Camilo
name: Rodriguez, Luz Angela
name: Johnson, Nancy L.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: Institutional and Behavioral Economics
subject: Collective Action
subject: Watersheds
subject: Field Experiments
subject: Colombia
subject: Kenya

description: The dilemma of collective action around water use and management involves solving both the problems of provision and appropriation. Cooperation in the provision can be affected by the rival nature of the appropriation and the asymmetries in the access. We report two field experiments conducted in Colombia and Kenya. The Irrigation Game was used to explore the provision and appropriation decisions under asymmetric or sequential appropriation, complemented with a Voluntary Contribution Mechanism experiment which looks at provision decisions under symmetric appropriation. The overall results were consistent with the patterns of previous studies: the zero contribution hypotheses is rejected whereas the most effective institution to increase cooperation was face-to-face communication, and above external regulations, although we find that communication works much more effectively in Colombia. We also find that the asymmetric appropriation did reduce cooperation, though the magnitude of the social loss and the effectiveness of alternative institutional options varied across sites.
Does Scarcity Exacerbate the Tragedy of the Commons? Evidence from Fishers’ Experimental Responses
Creators: name: Maldonado, Jorge Higinio
name: Moreno-Sanchez, Rocio Del Pilar
name: Maldonado, Jorge Higinio
name: Moreno-Sanchez, Rocio Del Pilar
Publisher: name: Unknown
Year: 2009
Subjects: subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: Institutional and Behavioral Economics
subject: Land Economics/Use
subject: Public Economics
subject: tragedy of the commons intensified
subject: economic experimental games
subject: resource abundance
subject: resource scarcity
subject: dynamic effects

description: Economic Experimental Games (EEGs), focused to analyze dilemmas associated with the use of common pool resources, have shown that individuals make extraction decisions that deviate from the suboptimal Nash equilibrium. However, few studies have analyzed whether these deviations towards the social optimum are affected as the stock of resource changes. Performing EEG with local fishermen, we test the hypothesis that the behavior of participants differs under a situation of abundance versus one of scarcity. Our findings show that under a situation of scarcity, players over-extract a given resource, and thus make decisions above the Nash equilibrium; in doing so, they obtain less profit, mine the others-regarding interest, and exacerbate the tragedy of the commons. This result challenges previous findings from the EEG literature. When individuals face abundance of a given resource, however, they deviate downward from the prediction of individualistic behavior. The phenomenon of private, inefficient overexploitation is corrected when management strategies are introduced into the game, something that underlines the importance of institutions.
BANKLARDA AKTIVLAR SIFATINI TASNIFLASH
Creators: name: Qodirova Nafisa Ilhomovna O'zbekiston respublikasi bank-moliya akademiyasi magistranti
Publisher: name: Zenodo
Year: 2024

description: Hozirgi vaqtda likvidlikni saqlash bank sektorining ob’ektiv zarurati hisoblanadi. Aytish joizki, uzoq muddatli resurslarga bo‘lgan ehtiyoj ayniqsa katta. Muammo shundaki, depozitlar, banklararo kreditlar va boshqa klassik moliyalashtirish manbalari cheklangan, bu esa moliyaviy resurslarni jalb qilish sohasida yangi usullarni ishlab chiqish yoki xalqaro tajribadan foydalanishni taqozo etadi. Belgilangan qoidalarga ko‘ra, bank likvidligini saqlab qolish imkonini beradigan va amaliyotda taqsimlash uchun katta imkoniyatlarga ega bo‘lgan usullardan biri bank aktivlarini sekyuritizatsiya qilishdir.
Scientometric analysis and knowledge mapping of literature-based discovery (1986-2020)
Creators: name: Kastrin, Andrej
name: Hristovski, Dimitar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: Literature-based discovery (LBD) aims to discover valuable latent relationships between disparate sets of literatures. This paper presents the first inclusive scientometric overview of LBD research. We utilize a comprehensive scientometric approach incorporating CiteSpace to systematically analyze the literature on LBD from the last four decades (1986-2020). After manual cleaning, we have retrieved a total of 409 documents from six bibliographic databases and two preprint servers. The 35 years' history of LBD could be partitioned into three phases according to the published papers per year: incubation (1986-2003), developing (2004-2008), and mature phase (2009-2020). The annual production of publications follows Price's law. The co-authorship network exhibits many subnetworks, indicating that LBD research is composed of many small and medium-sized groups with little collaboration among them. Science mapping reveals that mainstream research in LBD has shifted from baseline co-occurrence approaches to semantic-based methods at the beginning of the new millennium. In the last decade, we can observe the leaning of LBD towards modern network science ideas. In an applied sense, the LBD is increasingly used in predicting adverse drug reactions and drug repurposing. Besides theoretical considerations, the researchers have put a lot of effort into the development of Web-based LBD applications. Nowadays, LBD is becoming increasingly interdisciplinary and involves methods from information science, scientometrics, and machine learning. Unfortunately, LBD is mainly limited to the biomedical domain. The cascading citation expansion announces deep learning and explainable artificial intelligence as emerging topics in LBD. The results indicate that LBD is still growing and evolving.
description: 43 pages, 12 figures
Asteroid impact, Schumann resonances and the end of dinosaurs
Creators: name: Silagadze, Z. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Physics (physics.class-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We estimate the expected magnitudes of the Schumann resonance fields immediately after the Chicxulub impact and show that they exceed their present-day values by about $5\times 10^4$ times. Long-term distortion of the Schumann resonance parameters is also expected due to the enviromental impact of the Chicxulub event. If Schumann resonances play a regulatory biological role, as some studies indicate, it is possible that the excitation and distortion of Schumann resonances as a result of the asteroid/comet impact was a possible stress factor, which, among other stress factors associated with the impact, contributed to the demise of dinosaurs.
description: 26 pages, no figures, version to be published in Physics Letters A
Do Environmental Services Buyers Prefer Differentiated Rates? A Case Study from the Colombian Andes
Creators: name: Moreno-Sanchez, Rocio Del Pilar
name: Maldonado, Jorge Higinio
name: Wunder, Sven
name: Borda, Carlos Andres
name: Moreno-Sanchez, Rocio Del Pilar
name: Maldonado, Jorge Higinio
name: Wunder, Sven
name: Borda, Carlos Andres
Publisher: name: Unknown
Year: 2009
Subjects: subject: Community/Rural/Urban Development
subject: Demand and Price Analysis
subject: Resource /Energy Economics and Policy
subject: PES
subject: WTP
subject: environmental services
subject: Colombia
subject: watershed protection

description: Flat user fees in payment for environmental services (PES) schemes promote administrative ease, and are sometimes perceived as egalitarian. However, when environmental service (ES) buyers are heterogeneous in their income and water consumption levels, this may not be optimal, as total payments become too low and services are under-supplied. This paper identifies ES buyer preferences and estimates their willingness to pay (WTP) differentiated fees in an ongoing PES initiative in an Andean watershed in Colombia. Small, flat user payments have recently been introduced to implement incipient watershed protection upstream. Environmental service users fall into two highly heterogeneous categories: smallholder peasants and owners of recreational houses. We performed a contingent valuation analysis in a representative stratified sample of 218 user households. For improved water services, ES buyers on average were willing to pay a monthly US$1 premium over current flat PES rates. Owners of recreational houses were willing to pay about US$1.50 more; smallholders only US$0.5. 85% of ES buyers also agree to pay differentiated fees. Of these, 41% would prefer fees differentiated by water consumption, 23% by household income, 30% criteria combination, and 6% by other criteria. Spatial variables, such as distance to the water distribution point and to the town center, importantly influenced WTP. The results may help designing users-driven PES schemes in accordance with efficiency and equity objectives.
USE OF SPLINE FUNCTIONS IN DETERMINING RELIABILITY INDICATORS OF VEHICLES IN HOT CLIMATE CONDITIONS
Creators: name: Kayumov, B.
Publisher: name: The Scientific Heritage
Year: 2021
Subjects: Hot climate
reliability
spline function
vehice
engine
fuel injection system.

description: The article presents the possibilities of determining reliability indicators and plotting graphs as a result of processing the test results of cars in a hot climate using spline functions. Based on the results obtained, conclusions are drawn.
Semiclassical approach to black hole absorption of electromagnetic radiation emitted by a rotating charge
Creators: name: Castineiras, Jorge
name: Crispino, Luis C. B.
name: Matsas, George E. A.
name: Murta, Rodrigo
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider an electric charge, minimally coupled to the Maxwell field, rotating around a Schwarzschild black hole. We investigate how much of the radiation emitted from the swirling charge is absorbed by the black hole and show that most of the photons escape to infinity. For this purpose we use the Gupta-Bleuler quantization of the electromagnetic field in the modified Feynman gauge developed in the context of quantum field theory in Schwarzschild spacetime. We obtain that the two photon polarizations contribute quite differently to the emitted power. In addition, we discuss the accurateness of the results obtained in a full general relativistic approach in comparison with the ones obtained when the electric charge is assumed to be orbiting a massive object due to a Newtonian force.
description: 8 pages (revtex), 8 figures
GEOGRAFIK JOYLASHUV VA IQLIM OMILIGA HAMOHANG KIYIM XUSUSIYATLARI VA SHARTLARI
Creators: name: Sirojova Muxabbat Sodiq qizi
Publisher: name: Zenodo
Year: 2024

description: Iqlim – yer yuzasining quyosh nurlariga nisbatan ogʻishiga bogʻliq ravishda ob-havoning muayyan joyga xos boʻlgan yaʻni biron joyda boʻladigan ob-havo sharoitlarining majmui va mavsumiy geografik oʻzgarishidir. Respublikamiz keskin-kontinental iqlimi geografik joylashuvimizga mosdir.
ASSESSING THE IMPACT OF CLIMATE CHANGE ON AGRICULTURE IN GERMANY - A RICARDIAN ANALYSIS
Creators: name: Aurbacher, Joachim
name: Lippert, Christian
name: Krimly, Tatjana
name: Aurbacher, Joachim
name: Lippert, Christian
name: Krimly, Tatjana
Publisher: name: Unknown
Year: 2010
Subjects: Crop Production/Industries
Environmental Economics and Policy
Land Economics/Use
Resource /Energy Economics and Policy

description: To assess the impact of climate change on agriculture in German districts, a Ricardian analysis accounting for spatial autocorrelation is used. The analysis relies on land rental prices from agricultural statistics and climate data from the network of German weather observation stations. The results of the cross-sectional analysis show a significant correlation between land rents and increasing mean temperatures, as well as (except for East Germany) a significant increase of land rents along with declining spring precipitation. Next, climate data from the regional climate model REMO are used to calculate local land rent changes under different IPCC scenarios for a time horizon between 2011 and 2040. The overall result is an increase in land rents which relates to 5-6 % of net German agricultural income. In West Germany the increase in land rents rises from the north to south, because of the higher temperature increases in the South of Germany. East Germany shows a greater increase in land rents than West Germany, due to the presently more unfavourable climatic water balance which profits from the increase in spring precipitation. However, agricultural income in Germany might decrease in the long run, when the changes in the climatic conditions will be more severe than those simulated in this study. We plan to extend and improve the research in this field. Different approaches to consider soil qualities at district level shall be compared. In order to understand farmers’ adaptation to different climatic conditions multinomial logit models will be used to investigate how German land use structures depend on the climate. Furthermore, a typology of related transaction costs shall be devised. This will allow the identification of those regions where the adaptation needs and the corresponding costs are likely to be relatively high.