cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Current-Current Deformations of Conformal Field Theories, and WZW Models
Creators: name: Forste, Stefan
name: Roggenkamp, Daniel
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Moduli spaces of conformal field theories corresponding to current-current deformations are discussed. For WZW models, CFT and sigma model considerations are compared. It is shown that current-current deformed WZW models have WZW-like sigma model descriptions with non-bi-invariant metrics, additional B-fields and a non-trivial dilaton.
description: 30 pages, latex, v2: remarks and references added
ДИАГНОСТИКА ИНОРОДНЫХ ТЕЛ ДЫХАТЕЛЬНЫХ ПУТЕЙ У ДЕТЕЙ
Creators: name: Жалолиддин Тойирович Дусяров
name: Жасур Аслидинович Рузиев
name: Жамшид Азаматович Шамсиев
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: бронхоскопия
инородные тела
дети

description: За период с января 2000 по июнь 2019 годы в отделении торакальной хирургии 2 клиники СамМИ на стационарном лечении и обследовании находилось 1355 детей с подозрением на инородные тела дыхательных путей. Основную группу детей составляли дети первых 7 лет жизни (88,6%), из которых самой многочисленной была группа детей раннего возраста жизни (56,3%). Из 1355 детей госпитализированных с подозрением на инородные тела дыхательных путей у 407 (30,0%) диагноз исключен, а у 948 (70,0%) диагноз подтвержден
The impact of education reform and equity on practicing educators
Creators: name: Steindam, Sharon Louise
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education

description: The purposes of this study were to determine how practicing educators (i.e., teachers and principals) perceive the impact of educational reform at their local school system level; to ascertain whether they feel equity issues such as gender and race bias have been addressed in the reform movement; and to determine if there were significant relationships between the demographic characteristics of the respondent and their opinions and beliefs regarding educational reform. The methodology involved distributing a nation-wide survey to teachers and administrators who were officers of state associations affiliated with the following national associations: National Education Association (NEA), National Association of Elementary School Principals (NAESP), and National Association of Secondary School Principals (NASSP). Of the 533 surveys distributed, 304 were returned. Survey responses were analyzed through a series of Chi-Square tests of association, by developing individual group profiles, and by the use of summary statistics such as frequency counts and percentage tables. Demographic variables such as the respondent's gender, ethnic background, association affiliation and years of experience were examined in relationship to survey responses. Major findings included the following survey results: (1) When asked if they agreed or disagreed with the major issues and recommendations of the reform movement, practicing educators responded with mixed reviews. (2) Practicing educators responded that reform movement impact at the local level had been modest as they noted little change in the ten areas listed in the survey. (3) The majority of the responding educators felt that the reform movement had done little to increase educational opportunities for females. (4) Practicing educators perceived little change for minority opportunity as a result of the reform movement. (5) Principals and teachers expressed different views on reform recommendations such as merit pay and career ladders. Findings support the conclusion that there is a group of educational practitioners who are generally disenchanted with the current status of education reform and who feel that they have been excluded from the process. A second major conclusion is that the issues of gender and race equity are missing components in the current drive for public school excellence.
ИНОРОДНЫЕ ТЕЛА ТРАХЕОБРОНХИАЛЬНОГО ДЕРЕВА У ДЕТЕЙ
Creators: name: Каршибой Рабимович Бабаеров
name: Жасур Аслидинович Рузиев
name: Жамшид Азаматович Шамсиев
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: ригидная бронхоскопия
фибробронхоскопия
виртуальная бронхоскопия
ларингоскопия
гортань
бронхи
дыхательные пути
инородные тела
эмфизема
ателектаз
эндобронхит
дети

description: В статье представлен опыт проведения ригидной бронхоскопии у детей под общей анестезией. Подробно описана характеристика инородных тел, локализация, клиническая картина, диагностика и возникшие осложнения после аспирации. На основании изученных данных выбрана оптимальная методика и тактика для удаления инородных тел из дыхательных путей у детей. Ригидная бронхоскопия метод выбора, обеспечивает возможность безопасного захвата и выведения инородного тела при сохранении визуального контроля, без риска развития осложнений. Также необходимо отметить, что проведение данной процедуры у детей требует правильной организации работы, высокой квалификации врачей, среднего медицинского персонала, наличия современного оборудования.
A comparative study of the perceptions of broadcast practitioners, nonbroadcast practitioners, and broadcast educators on the broadcast production curriculum in higher education
Creators: name: Carrington, Maria E.
Publisher: name: American University
Year: 2023

description: This study examined the perceptions of broadcast and nonbroadcast practitioners and broadcast educators regarding the broadcast communication curriculum in higher education and the preparedness of broadcast students for careers in the field of broadcasting. Nonbroadcast practitioners were included in the study because of the growing utilization of video for training and informational purposes. In addition, the study explored differing perceptions of practitioners and educators as to the value of specific courses included in the broadcast communication curriculum. A survey instrument was utilized in analyzing and characterizing the perceptions of a sample of practitioners and educators. The instrument was divided into three parts. Part A requested responses to thirty statements regarding broadcast communication curricula using a Likert-type measurement on a five point scale ranging from strongly agree (5 points) to strongly disagree (1 point). Part B contained a list of twenty-five college courses and requested responses regarding overall value in the broadcast communication curriculum. Courses were ranked on a three point scale from "very valuable" (1 point) to "little value" (3 points). Part C ascertained demographic data with the last question asking specific suggestions for improving the effectiveness of broadcast communication curricula. The survey instrument was sent to: (1) 74 commercial and noncommercial general managers employed by television stations in the District of Columbia, Maryland, Virginia, West Virginia, Pennsylvania, New Jersey, and Delaware, (2) 92 nonbroadcast practitioners in the District of Columbia, Maryland, and Richmond, Virginia, and (3) 23 department chairpersons in the District of Columbia, Maryland, Virginia, and West Virginia. The findings revealed that the course "internships at television stations" was ranked highest by practitioners and educators as very valuable in preparing students for the industry. The majority of practitioners and educators believed that a closer relationship between colleges and universities and broadcast stations was essential. General agreement was found to exist between practitioners and educators with regard to the ideal broadcast curriculum with 88% of practitioners and 83% of educators agreeing that the ideal curriculum should combine a liberal arts background with training for first-job skills. Practitioners emphasized that only a handful of broadcast graduates will succeed in the industry. Therefore, educators need to encourage students to become more diversified and, in addition to broadcast stations, explore other options in the communications industry.
Brane Decay and Death of Open Strings
Creators: name: Hashimoto, Koji
name: Terashima, Seiji
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show how open strings cease to propagate when unstable D-branes decay. The information on the propagation is encoded in BSFT two-point functions for arbitrary profiles of open string excitations. We evaluate them in tachyon condensation backgrounds corresponding to (i) static spatial tachyon kink (= lower dimensional BPS D-brane) and (ii) homogeneous rolling tachyon. For (i) the propagation is restricted to the directions along the tachyon kink, while for (ii) all the open string excitations cease to propagate at late time and are subject to a collapsed light cone characterized by Carrollian contraction of Lorentz group.
description: 19 pages, published version (typos corrected, a reference added)
ЭЛЕКТРОНЕЙРОМИОГРАФИЯ У ДЕТЕЙ С НЕЙРОПАТИЕЙ ЛИЦЕВОГО НЕРВА
Creators: name: Дильноза Салимовна Шомурадова
name: Саодат Суръатовна Игамова
name: Азиза Тахировна Джурабекова
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: ЭНМГ
невропатия лицевого нерва

description: Самый большой процент приходится, из всех мононевропатий, на невропатию лицевого нерва. Не существует единого мнения и по вопросам механизма развития невропатии лицевого нерва (НЛН) у детей. Если у взрослых предполагающая связь с нарушением кровообращения, то в детском возрасте большое значение в вопросе патогенеза, придается аутоиммунным расстройствам. Много дискуссий вокруг исхода заболевания у детей, число осложнений и повторных случаев НЛН. Золотым стандартом в диагностике НЛН, из современных исследований, является электронейромиография (ЭНМГ). Диагностика позволяет проводить несколько методик регистрации активности мышц, тоническую диагностику поражения нерва, определить течение заболевания, стадию, тяжесть состояния и эффективность лечения в динамике
A comparative study of the perceptions of broadcast practitioners, nonbroadcast practitioners, and broadcast educators on the broadcast production curriculum in higher education
Creators: name: Carrington, Maria E.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3904
subject: Specialist studies in education

description: This study examined the perceptions of broadcast and nonbroadcast practitioners and broadcast educators regarding the broadcast communication curriculum in higher education and the preparedness of broadcast students for careers in the field of broadcasting. Nonbroadcast practitioners were included in the study because of the growing utilization of video for training and informational purposes. In addition, the study explored differing perceptions of practitioners and educators as to the value of specific courses included in the broadcast communication curriculum. A survey instrument was utilized in analyzing and characterizing the perceptions of a sample of practitioners and educators. The instrument was divided into three parts. Part A requested responses to thirty statements regarding broadcast communication curricula using a Likert-type measurement on a five point scale ranging from strongly agree (5 points) to strongly disagree (1 point). Part B contained a list of twenty-five college courses and requested responses regarding overall value in the broadcast communication curriculum. Courses were ranked on a three point scale from "very valuable" (1 point) to "little value" (3 points). Part C ascertained demographic data with the last question asking specific suggestions for improving the effectiveness of broadcast communication curricula. The survey instrument was sent to: (1) 74 commercial and noncommercial general managers employed by television stations in the District of Columbia, Maryland, Virginia, West Virginia, Pennsylvania, New Jersey, and Delaware, (2) 92 nonbroadcast practitioners in the District of Columbia, Maryland, and Richmond, Virginia, and (3) 23 department chairpersons in the District of Columbia, Maryland, Virginia, and West Virginia. The findings revealed that the course "internships at television stations" was ranked highest by practitioners and educators as very valuable in preparing students for the industry. The majority of practitioners and educators believed that a closer relationship between colleges and universities and broadcast stations was essential. General agreement was found to exist between practitioners and educators with regard to the ideal broadcast curriculum with 88% of practitioners and 83% of educators agreeing that the ideal curriculum should combine a liberal arts background with training for first-job skills. Practitioners emphasized that only a handful of broadcast graduates will succeed in the industry. Therefore, educators need to encourage students to become more diversified and, in addition to broadcast stations, explore other options in the communications industry.
INSON A'ZOLARI ISHTIROK ETGAN TIBBIY METAFORALAR
Creators: name: Dilnura Ashraf Qizi Axmаdova
name: Mehriniso Qodirovna Abuzalova
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: tilshunoslik
tibbiyot
kasallik
tibbiy matn
publitsistika
publitsistik matn
metafora
metaforik birlik
tibbiy metafora

description: Ushbu maqolada metaforalar nafaqat badiiy matn vositasi, balki tibbiyot sohasiga oid publitsistik matnlar uchun ham muhim ahamiyatga ega ekanligi xususida fikr yuritilgan. Inson a’zolari ishtirok etgan tibbiy metaforalarning o‘ziga xos xususiyatlari tahlilga tortilgan
Slack Ideals in Macaulay2
Creators: name: Macchia, Antonio
name: Wiebe, Amy
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Recently Gouveia, Thomas and the authors introduced the slack realization space, a new model for the realization space of a polytope. It represents each polytope by its slack matrix, the matrix obtained by evaluating each facet inequality at each vertex. Unlike the classical model, the slack model naturally mods out projective transformations. It is inherently algebraic, arising as the positive part of a variety of a saturated determinantal ideal, and provides a new computational tool to study classical realizability problems for polytopes. We introduce the package SlackIdeals for Macaulay2, that provides methods for creating and manipulating slack matrices and slack ideals of convex polytopes and matroids. Slack ideals are often difficult to compute. To improve the power of the slack model, we develop two strategies to simplify computations: we scale as many entries of the slack matrix as possible to one; we then obtain a reduced slack model combining the slack variety with the more compact Grassmannian realization space model. This allows us to study slack ideals that were previously out of computational reach. As applications, we show that the well-known Perles polytope does not admit rational realizations and prove the non-realizability of a large quasi-simplicial sphere.
description: Example 4 replaced
Additional file 4 of Community recovery dynamics in yellow perch microbiome after gradual and constant metallic perturbations
Creators: name: Cheaib, Bachar
name: Seghouani, Hamza
name: Umer Zeeshan Ijaz
name: Derome, Nicolas
Publisher: name: figshare
Year: 2020
Subjects: 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
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 4: Figure S4. Heatmaps of cadmium with taxa diversity and composition in host and water communities. The correlations indicate a gradient from positive (blue) to negative (red) along a colour gradient, with rows representing diversity measures (richness, evenness) as well as cadmium concentrations, and columns indicating taxonomic levels. The gut microbiome in the constant CdCl2 (CC) and variable CdCl2 (CV) regimes showed a negative correlation between Mycoplasma and diversity indices. A strong positive correlation between Actinomycetales is noticeable in the CV. For the skin microbiome, not only Actinomycetales, but also Burkholderiales, and Chromatiales showed strong positive correlations with CV. This figure was produced using the Rhea package.
Thermal and Pressure Ionization in Warm, Dense MgSiO$_3$ Studied with First-Principles Computer Simulations
Creators: name: González-Cataldo, Felipe
name: Militzer, Burkhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Using path integral Monte Carlo and density functional molecular dynamics (DFT-MD) simulations, we study the properties of MgSiO$_3$ enstatite in the regime of warm dense matter. We generate a consistent equation of state (EOS) that spans across a wide range of temperatures and densities (10$^4$--10$^7$ K and 6.42--64.16 g cm$^{-3}$). We derive the shock Hugoniot curve, that is in good agreement with the experiments. We identify the boundary between the regimes of thermal ionization and pressure ionization by locating where the internal energy at constant temperature attains a minimum as a function of density or pressure. At low density, the internal energy decreases with increasing density as the weight of free states changes. Thermal ionization dominates. Conversely, at high density, in the regime of pressure ionization, the internal energy increases with density. We determine the boundary between the two regimes and show that the compression maximum along the shock Hugoniot curve occurs because K shell electrons become thermally ionized rather than pressure ionized.
description: arXiv admin note: text overlap with arXiv:2001.00985
Quasi-symmetric functions and mod p multiple harmonic sums
Creators: name: Hoffman, Michael E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 11M32, 11B50, Secondary 05E05, 16T05

description: We present a number of results about (finite) multiple harmonic sums modulo a prime, which provide interesting parallels to known results about multiple zeta values (i.e., infinite multiple harmonic series). In particular, we prove a "duality" result for mod p multiple harmonic sums similar to (but distinct from) that for multiple zeta values. We also exploit the Hopf algebra structure of the quasi-symmetric functions to do calculations with multiple harmonic sums mod p, and obtain, for each weight through 9, a set of generators for the space of weight-n multiple harmonic sums mod p. When combined with recent work, the results of this paper offer significant evidence that the number of quantities needed to generate the weight-n multiple harmonic series mod p is the n-th Padovan number (OEIS sequence A000931).
description: 25 pages; version to appear in Kyushu J. Math
The interval hypothesis with applications to the problem of bioequivalence
Creators: name: Mokatrin, Ahmad Saleem
Publisher: name: American University
Year: 2023

description: A new procedure is proposed to test the interval hypothesis, which tests whether the mean of a population is within an interval (A,B) or not. Exact and asymptotic distributions of the test statistic will be studied for both known and unknown standard deviation $\sigma$. The power function is investigated for each case. The new method is generalized to testing whether the difference between two means is within a given interval or not. Two sampling designs are considered, the parallel and the crossover design. The new procedure is compared with methods currently used in testing for bioequivalence in pharmaceutical research. A comparison of the rejection regions of the different procedures is presented. A Monte Carlo study demonstrates the behavior of the new method compared to the other procedures.
Wasserstein Distributionally Robust Look-Ahead Economic Dispatch
Creators: name: Poolla, Bala Kameshwar
name: Hota, Ashish R.
name: Bolognani, Saverio
name: Callaway, Duncan S.
name: Cherukuri, Ashish
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We consider the problem of look-ahead economic dispatch (LAED) with uncertain renewable energy generation. The goal of this problem is to minimize the cost of conventional energy generation subject to uncertain operational constraints. The risk of violating these constraints must be below a given threshold for a family of probability distributions with characteristics similar to observed past data or predictions. We present two data-driven approaches based on two novel mathematical reformulations of this distributionally robust decision problem. The first one is a tractable convex program in which the uncertain constraints are defined via the distributionally robust conditional-value-at-risk. The second one is a scalable robust optimization program that yields an approximate distributionally robust chance-constrained LAED. Numerical experiments on the IEEE 39-bus system with real solar production data and forecasts illustrate the effectiveness of these approaches. We discuss how system operators should tune these techniques in order to seek the desired robustness-performance trade-off and we compare their computational scalability.
Empirical Collatz Record: A 100-Digit Starting Value with Total Stopping Time 3534
Creators: name: Handlin, Cody
Publisher: name: Zenodo
Year: 2025
Subjects: Number Theory
Collatz Conjecture
Integer Sequences
Computational Mathematics

description: This technical note documents a new empirical record in the Collatz (3n+1) iteration. A specific 100-digit starting value is shown to reach 1 after 3534 steps—the longest total stopping time known to date. The full trajectory has been verified, and a cryptographic SHA-256 hash is included to ensure reproducibility. This publication serves as a timestamped, citable record of the discovery.  A short Python script has been provided for verification.
The interval hypothesis with applications to the problem of bioequivalence
Creators: name: Mokatrin, Ahmad Saleem
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 49
subject: Mathematical sciences
classificationCode: 4905
subject: Statistics
subject: FOS: Mathematics

description: A new procedure is proposed to test the interval hypothesis, which tests whether the mean of a population is within an interval (A,B) or not. Exact and asymptotic distributions of the test statistic will be studied for both known and unknown standard deviation $\sigma$. The power function is investigated for each case. The new method is generalized to testing whether the difference between two means is within a given interval or not. Two sampling designs are considered, the parallel and the crossover design. The new procedure is compared with methods currently used in testing for bioequivalence in pharmaceutical research. A comparison of the rejection regions of the different procedures is presented. A Monte Carlo study demonstrates the behavior of the new method compared to the other procedures.
Finite-system Multicriticality at the Superradiant Quantum Phase Transition
Creators: name: Zhu, Han-Jie
name: Xu, Kai
name: Zhang, Guo-Feng
name: Liu, Wu-Ming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate the existence of finite-system multicriticality in a qubit-boson model where biased qubits collectively coupled to a single-mode bosonic field. The interplay between biases and boson-qubit coupling produces a rich phase diagram showing multiple superradiant phases and phase boundaries of different orders. In particular, multiple phases can become indistinguishable in appropriate bias configurations, which is the signature of multicriticality. A series of universality classes characterizing these multicritical points are identified. Moreover, we present a trapped-ion realization with the potential to explore the multicritical phenomena experimentally using a small number of ions. The results open a novel way to probe multicritical universality classes in experiments.
description: 6 pages, 3 figures
A study on teaching appropriate play skills to visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents
Creators: name: Cunnup, Susan Gail
Publisher: name: American University
Year: 2023

description: This study examines the effectiveness of verbal prompting combined with concentrated lighting as a technique for teaching play behavior to visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents. Unlike adolescents of average emotional, physical, or intellectual ability, the population of visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents must be taught play behaviors. Research has shown that adolescents with sensory and intellectual deficits may learn as a result of modifications to their environment or modeling. Other studies have demonstrated that mentally retarded or multiply impaired adolescents can acquire new behaviors through reinforced repetitions. However, little research is available on methods of teaching or the play behaviors of visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents. As a result, educators have consistently depended upon physical interactions, edible reinforcers, or a combination of restrictive techniques to teach visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents. A single subject ABBA multiple-baseline-across-subjects design was implemented to determine the impact of verbal prompting and concentrated lighting on the play behaviors of visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents. Four subjects, two males and two females, were selected from a population of severely handicapped adolescents attending a summer camp. The subjects were randomly divided into two groups containing one male and one female. Play behavior was recorded over a six week period in four phases: baseline, play behavior in the classroom, treatment, and a return to baseline. The subjects' natural play behavior was recorded during baseline. In the classroom, appropriate play behavior with toys was modeled using verbal prompting. The treatment phase took place in a small dark room where appropriate play behaviors were modeled under the beam of the high intensity lamp by the researcher. Phase four was a return to baseline. The subjects did not demonstrate a significant increase in appropriate play behaviors as a result of the treatment. Subject C did exhibit a noticeable, but not consistent, increase in appropriate play behaviors in phase three. The combination of concentrated lighting with verbal prompting was not an effective method for teaching play behaviors to visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents.
Dynamic Oligopoly in Rice: Estimation and Tests of Market Structure and Subgame Perfection
Creators: name: Karp, Larry
name: Perloff, Jeffrey M.
name: Karp, Larry
name: Perloff, Jeffrey M.
Publisher: name: Unknown
Year: 1987
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: A linear-quadratic cost-of-adjustment model is used to estimate market structure, firm rationality, and adjustment costs. Market structure is measured by an index that is analogous to a conjectural variation. We consider both open-loop and subgame perfect equilibria. The model is used to study the rice export market.
A Game Theoretic Framework for Incentives in P2P Systems
Creators: name: Buragohain, Chiranjeeb
name: Agrawal, Divyakant
name: Suri, Subhash
Publisher: name: arXiv
Year: 2003
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences
subject: H.4, J.4

description: Peer-To-Peer (P2P) networks are self-organizing, distributed systems, with no centralized authority or infrastructure. Because of the voluntary participation, the availability of resources in a P2P system can be highly variable and unpredictable. In this paper, we use ideas from Game Theory to study the interaction of strategic and rational peers, and propose a differential service-based incentive scheme to improve the system's performance.
“YAXSHI” LEKSEMASINING INSONLARGA XOS SIFATLAR DOIRASIDAGI ASSOTSIATSIYASI
Creators: name: Maftuna Vahobjon Qizi Nurboyeva
name: Mehriniso Qodirovna Abuzalova
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: assotsiatsiya
lingvistik ong
lingvistik obraz
rag'batlantirish
"yaxshi"
fikrlash
adabiy qatlam
pozitsiya
parallellik
diaxronik tahlil
ijtimoiy qatlam
assotsiativ tajriba
yadro
reaktsiya

description: Maqolada "Yaxshi" leksemasining insoniy fazilatlar boʻyicha assotsiatsiyalari va ushbu assotsiatlarning diaxronik tahlildagi o'ziga xosligi, shuningdek, shu tahlil boʻyicha ijtimoiy doiralar va adabiy qatlam o'rtasidagi o'xshashlik va farqlar tadqiq etiladi.
Faster Amplitude Estimation
Creators: name: Nakaji, Kouhei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we introduce an efficient algorithm for the quantum amplitude estimation task which works in noisy intermediate-scale quantum(NISQ) devices. The quantum amplitude estimation is an important problem which has various applications in fields such as quantum chemistry, machine learning, and finance. Because the well-known algorithm for the quantum amplitude estimation using the phase estimation cannot be executed in NISQ devices, alternative approaches have been proposed in recent literature. Some of them provide a proof of the upper bound which almost achieves the Heisenberg scaling. However, the constant factor is large and thus the bound is loose. Our contribution in this paper is to provide the algorithm such that the upper bound of query complexity almost achieves the Heisenberg scaling and the constant factor is small.
description: 10 pages
PRICING AND STORAGE DECISIONS IN GOVERNMENT GRAIN MARKETING BOARDS
Creators: name: Buccola, Steven T.
name: Sukume, Chrispen
name: Buccola, Steven T.
name: Sukume, Chrispen
Publisher: name: Unknown
Year: 1987
Subjects: Crop Production/Industries
Demand and Price Analysis

description: A model is developed of the pricing and storage decisions of a government grain marketing board. Price and storage levels are found to have interdependent effects on a board's utility. The model indicates that Zimbabwe's Grain Marketing Board pays higher prices and holds larger stocks than would be optimal for an expected utility maximizing monopsonist.
A study on teaching appropriate play skills to visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents
Creators: name: Cunnup, Susan Gail
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3904
subject: Specialist studies in education

description: This study examines the effectiveness of verbal prompting combined with concentrated lighting as a technique for teaching play behavior to visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents. Unlike adolescents of average emotional, physical, or intellectual ability, the population of visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents must be taught play behaviors. Research has shown that adolescents with sensory and intellectual deficits may learn as a result of modifications to their environment or modeling. Other studies have demonstrated that mentally retarded or multiply impaired adolescents can acquire new behaviors through reinforced repetitions. However, little research is available on methods of teaching or the play behaviors of visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents. As a result, educators have consistently depended upon physical interactions, edible reinforcers, or a combination of restrictive techniques to teach visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents. A single subject ABBA multiple-baseline-across-subjects design was implemented to determine the impact of verbal prompting and concentrated lighting on the play behaviors of visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents. Four subjects, two males and two females, were selected from a population of severely handicapped adolescents attending a summer camp. The subjects were randomly divided into two groups containing one male and one female. Play behavior was recorded over a six week period in four phases: baseline, play behavior in the classroom, treatment, and a return to baseline. The subjects' natural play behavior was recorded during baseline. In the classroom, appropriate play behavior with toys was modeled using verbal prompting. The treatment phase took place in a small dark room where appropriate play behaviors were modeled under the beam of the high intensity lamp by the researcher. Phase four was a return to baseline. The subjects did not demonstrate a significant increase in appropriate play behaviors as a result of the treatment. Subject C did exhibit a noticeable, but not consistent, increase in appropriate play behaviors in phase three. The combination of concentrated lighting with verbal prompting was not an effective method for teaching play behaviors to visually impaired, emotionally handicapped, nonverbal, profoundly retarded adolescents.
Renormalization of the Cabibbo-Kobayashi-Maskawa Matrix at One-Loop Level
Creators: name: Zhou, Yong
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have investigated the present renormalization prescriptions of the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix. Based on one prescription which is formulated by comparing with the fictitious case of no mixing of quark generations, we propose a new prescription which can make the physical amplitude involving quark's mixing gauge independent and ultraviolet finite. Compared with the previous prescriptions this prescription is very simple and suitable for actual calculations. Through analytical calculations we also give a strong Proof for the important hypothesis that in order to keep the CKM matrix gauge independent the unitarity of the CKM matrix must be preserved.
description: 6 pages, 2 figures
DUTOR CHOLG`U IJROCHILIGIDA ASARLARNI JO`RNAVOZ (FORTEPIANO) BILAN IJRO ETISH KO`NIKMALARINI SHAKLLANTIRISH
Creators: name: Alimbayeva Komiljonovna Maftuna
name: Normuminova, Gulmira Komiljonovna
name: Talifa Ozodovna Fayziyeva
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: kuy
garmoniya
ritm
faktura
dinamika
artikulyatsiya
shakl

description: Dutor cholg`u ijrochiligi uchun yozilgan asarlarning jo`rnavoz (fortepiano) bilan ijro etish ko`nikmalarini shakllantirishning ilg`or usullari yoritilgan
O'ZBEKISTONDA TO'Y AN'ANALARI TARIXI VA BUGUNI
Creators: name: Ochilov, Akrom
name: Xadicha Saydullayeva
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: to’y
marosim
an’ana
urf-odat
irim-sirim
diniy amallar

description: Har bir xalqning o’zining tarixan shakllanib kelgan an’ana va urf odatlariga ega. Shu jumladan o’zbek xalqi ham yillar davomida shakllanib kelgan, o’ziga xos etnogtrafik tarixiga ega. Shunday an’analar ichida o’zbek xalqining to’ylari qadim o’tmishdan to hozirgacha amal qilinayotgan asosiy marosimlari hisoblanadi
Two-photon ionization of metastable helium
Creators: name: Czechanski, James Poremba
Publisher: name: American University
Year: 2023

description: There have been relatively few investigations of multiphoton ionization from metastable helium. Of particular interest has been the work of Haberland et al. 1987 and Haberland and Oschwald 1988. In both the 1987 and 1988 papers they have described the two photon ionization of metastable helium. In each of these studies they have reported the occurrence of unexplained structure along the wings of their resonance profiles. Upon the performance of similar measurements by this study, the unexplained structure is not seen and the agreement of the experiment's measurements with the theoretical shape of the resonance curves has been good. To experimentally verify these resonance effects, we have used a tunable dye laser in conjunction with a time of flight mass spectrometer to create and detect ions from metastable helium by two-photon absorption. The use of a metastable state instead of the ground state is advantageous because of its proximity to the ionization continuum and its extended lifetime. Using a metastable state as a starting point for multiphoton absorption requires fewer photons to reach the ionization threshold. The extended lifetime of the state also makes it easy to access experimentally. For helium the singlet metastable state 2$\sp1$S lies at 20.61 eV above the ground level with a natural lifetime of close to a millisecond. Two photons of 501.7 nm and 504.35 nm are required for the ionization processes in resonance with the 3$\sp1$P and the 3$\sp1$D states. This thesis is the accounting of the experimental process involved in the measurement of the dipole and quadrupole resonances of two photon ionization from singlet metastable helium. The study includes the description of the laser, electron gun assembly for metastable helium creation, and the time of flight mass spectrometer. A discussion of the theory of multiphoton processes is included along with the discussion of the data, its reduction and analysis, and a comparison with theoretical prediction. This study has not only involved the acquisition of definitive atomic spectra data sets, but has also established a facility for resonant ionization spectroscopy at The American University.
ECONOMIES OF SCALE AND OUTPUT FLEXIBILITY IN NORTHEASTERN U.S. DAIRY
Creators: name: Bruun, Madalene C.
name: Adelaja, Adesoji O.
name: Bruun, Madalene C.
name: Adelaja, Adesoji O.
Publisher: name: Unknown
Year: 1990
Subjects: subject: Livestock Production/Industries
subject: Risk and Uncertainty
subject: Output flexibility
subject: dairy farm size
subject: economies of scale
subject: risk
subject: specialization
subject: capital intensity

description: This paper argues that even with strong economies of scale, all farm sizes could have similar adjusted average costs and be equally competitive because the advantages of flexibility on small farms tend to offset those of economies of scale on large farms. Evidence from Northeastern U.S. dairy farms suggests that capital intensity and specialization increase with size, flexibility decreases with size, and small and larr,e farms are equally viable despite slight economies of scale.
Two-photon ionization of metastable helium
Creators: name: Czechanski, James Poremba
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences
classificationCode: 5102
subject: Atomic, molecular and optical physics

description: There have been relatively few investigations of multiphoton ionization from metastable helium. Of particular interest has been the work of Haberland et al. 1987 and Haberland and Oschwald 1988. In both the 1987 and 1988 papers they have described the two photon ionization of metastable helium. In each of these studies they have reported the occurrence of unexplained structure along the wings of their resonance profiles. Upon the performance of similar measurements by this study, the unexplained structure is not seen and the agreement of the experiment's measurements with the theoretical shape of the resonance curves has been good. To experimentally verify these resonance effects, we have used a tunable dye laser in conjunction with a time of flight mass spectrometer to create and detect ions from metastable helium by two-photon absorption. The use of a metastable state instead of the ground state is advantageous because of its proximity to the ionization continuum and its extended lifetime. Using a metastable state as a starting point for multiphoton absorption requires fewer photons to reach the ionization threshold. The extended lifetime of the state also makes it easy to access experimentally. For helium the singlet metastable state 2$\sp1$S lies at 20.61 eV above the ground level with a natural lifetime of close to a millisecond. Two photons of 501.7 nm and 504.35 nm are required for the ionization processes in resonance with the 3$\sp1$P and the 3$\sp1$D states. This thesis is the accounting of the experimental process involved in the measurement of the dipole and quadrupole resonances of two photon ionization from singlet metastable helium. The study includes the description of the laser, electron gun assembly for metastable helium creation, and the time of flight mass spectrometer. A discussion of the theory of multiphoton processes is included along with the discussion of the data, its reduction and analysis, and a comparison with theoretical prediction. This study has not only involved the acquisition of definitive atomic spectra data sets, but has also established a facility for resonant ionization spectroscopy at The American University.
TIBBIY REKLAMA MATNLARINI YARATISH USULLARI
Creators: name: Sobirova, Dilnoza Rasulovna
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: tibbiy reklama
dori-darmon
reklama tili
adresat
muammoni hal qilish usuli
ta’sir

description: Ushbu maqolada tibbiyotga oid reklamalarning adresat ongiga turli usullar vositasida yaratilgan matnlar orqali ta’sir qilishi va natijada reklama qilinayotgan doridarmon iste’molchilari doirasining kengayishi xususida fikr yuritilgan. Tibbiyotga oid reklamalar yaratishning usullari ommaviy axborot vositalari orqali e’lon qilinayotgan tibbiy reklama matnlari misolida asoslangan
Exclusive photoproduction of a heavy vector meson in QCD
Creators: name: Ivanov, D. Y.
name: Schaefer, A.
name: Szymanowski, L.
name: Krasnikov, G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The process of exclusive heavy vector meson photoproduction, gamma p -> V p, is studied in the framework of QCD factorization. The mass of the produced meson, V = Upsilon or J/Psi, provides a hard scale for the process. We demonstrate, that in the heavy quark limit and at the one-loop order in perturbation theory, the amplitude factorizes in a convolution of a perturbatively calculable hard-scattering amplitude with the generalized parton densities and the nonrelativistic QCD matrix element _V. We evaluate the hard scattering amplitude at one-loop order and compare the data with theoretical predictions using an available model for generalized parton distributions.
description: 37 pages, LATEX, 17 figures, the version corrected according to the erratum Eur.Phys.J. C75 (2015) 2, 75 and eqs. (2.21), (3.96), (3.97)
Bosonization based on Clifford algebras and its gauge theoretic interpretation
Creators: name: Bochniak, Arkadiusz
name: Ruba, Błażej
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the properties of a bosonization procedure based on Clifford algebra valued degrees of freedom, valid for spaces of any dimension. We present its interpretation in terms of fermions in presence of $\mathbb{Z}_2$ gauge fields satisfying a modified Gauss' law, resembling Chern-Simons-like theories. Our bosonization prescription involves constraints, which are interpreted as a flatness condition for the gauge field. Solution of the constraints is presented for toroidal geometries of dimension two. Duality between our model and $(d-1)$-form $\mathbb{Z}_2$ gauge theory is derived, which elucidates the relation between the approach taken here with another bosonization map proposed recently.
description: Revised version. 36 pages, 6 figures
MOTIVES FOR THE INTERNATIONAL LICENSING OF BRANDED FOOD AND RELATED PRODUCTS
Creators: name: Sheldon, Ian M.
name: Henderson, Dennis R.
name: Sheldon, Ian M.
name: Henderson, Dennis R.
Publisher: name: Unknown
Year: 1990
Subjects: Food Consumption/Nutrition/Food Safety
International Relations/Trade

description: Given initial empirical observations of international licensing of food and beer brands, this paper presents a simple game-theoretic model of the motives for licensing. In a situation of complete information, the model suggests that imperfect competition in overseas markets may be an important determinant of a branded product licensing equilibrium, whilst incomplete information about incumbent firms' payoffs and strategies and also repetition of the game may generate a sequence of unsuccessful entry followed by licensing.
Analysis of Hospital-Acquired Urinary Tract Infections at an Acute Inpatient Rehabilitation Hospital
Creators: name: Quillin, Sarah Jane
Publisher: name: DigitalHub. Galter Health Sciences Library & Learning Center
Year: 2019
Subjects: subject: urinary tract infections
subject: inpatients
subject: rehabilitation hospitals
subject: hospital-acquired infections
subject: Shirley Ryan AbilityLab
subject: Urinary Tract Infections
subject: Rehabilitation Centers
subject: Cross Infection
subject: Chicago (Ill.)
subject: Urinary Tract Infections/epidemiology
subject: Urinary Tract Infections/etiology

description: Urinary tract infections (UTIs) are a leading cause of preventable, hospital-acquired infections (HAIs) in acute care hospitals in the United States and a major public health issue. This analysis aims to characterize the urinary tract infections (UTI) that occurred in all patients of Shirley Ryan AbilityLab (SRAlab), an acute inpatient rehabilitation hospital in Chicago, with the goal of identifying future intervention targets to reduce UTI incidence and reduce the phenomenon of urine overculturing. The results of this analysis will be used to design UTI-prevention interventions directed toward caregivers and patients, and strategies to prevent over-culturing and maximize resources, improving patient outcomes.
A Comparison of Subjective and Historical Yield Distributions With Implications For Multiple Peril Crop Insurance
Creators: name: Buzby, Jean
name: Kenkel, Phil L.
name: Skees, Jerry R.
name: Pease, James W.
name: Benson, Fred J.
name: Buzby, Jean
name: Kenkel, Phil L.
name: Skees, Jerry R.
name: Pease, James W.
name: Benson, Fred J.
Publisher: name: Unknown
Year: 1990
Subjects: Agricultural Finance
Crop Production/Industries

description: This study examines the relationship between subjective yield distributions elicited from Kentucky farmers in 1987 and 1989 and their historical yield distributions using insurance concepts. The results indicate close correspondence between the first moments of the distributions and a marked difference in skewness suggesting that farmers underestimate their downside risk.
Resonant two-photon ionization of metastable helium and polarization dependency
Creators: name: Houston, Brian Harvey
Publisher: name: American University
Year: 2023

description: The polarization dependency of relative cross-sections of the two-photon REMPI dipole transition (2$\sp1$S-3$\sp1$P) and quadrupole transition (2$\sp1$S-3$\sp1$D) is studied experimentally. Strict attention is paid to the measurement statistics, particularly to those associated with the ionizing laser beam. The cross section profiles are fitted to Voight functions that are generated from the measurement of experimental parameters. Ratios of the circular to linear polarization ion yields are also reported. These ratios are compared to theoretical predictions.