cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fractional illumination of convex bodies
Creators: name: Naszódi, Márton
Publisher: name: Faculty of Science, University of Calgary
Year: 2009

description: We introduce a fractional version of the illumination problem of Gohberg, Markus, Boltyanski and Hadwiger, according to which 

every convex body in ${\mathbb R}^d$ is illuminated by at most $2^d$ directions. 

We say that a weighted set of points on ${\mathbb S}^{d-1}$ illuminates a convex body $K$ 

if for each boundary point of $K$, the total weight of those directions that illuminate $K$ at that point is at least one.

We prove that the fractional illumination number of any o-symmetric convex body is at most $2^d$, and of a general convex body $\binom{2d}{d}$.

As a corollary, we obtain that for any o-symmetric convex polytope with $k$ vertices,

there is a direction that illuminates at least $\left\lceil\frac{k}{2^d}\right\rceil$ vertices.
description: Contributions to Discrete Mathematics, Vol 4, No 2 (2009)
Influence of electron scatterings on thermoelectric effect
Creators: name: Li, Jing
name: Yeung, Tin Cheung Au
name: Kam, Chan Hin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work, we employed non-equilibrium Green's function to investigate the electron transport properties in the nanowire with the presence of scatterings. The scattering mechanism is modelled by using the concept of Büttiker probe. The effect of electron scattering is analyzed under three conditions: absence of external field; with a bias voltage; and with a finite temperature difference. It is found weak and strong scatterings strength affect the electron transport in different ways. In the case of weak scattering strength, electron trapping increase the electron density, hereafter boost the conductance significantly. Although the increment in conductance would reduce the Seebeck coefficient slightly, the power factor still increases. In the case of strong scattering strength, electron diffraction causes the redistribution of electrons, accumulation of electron at the ends of the wire blocks current flow; hence the conductance is reduced significantly. Although the Seebeck coefficient increases slightly, the power factor still decreases. The power factor is enhanced by 6%-18%, at the optimum scattering strength.
Preventing Dynamic Library Compromise on Node.js via RWX-Based Privilege Reduction
Creators: name: Vasilakis, Nikos
name: Staicu, Cristian-Alexandru
name: Ntousakis, Grigoris
name: Kallas, Konstantinos
name: Karel, Ben
name: DeHon, André
name: Pradel, Michael
Publisher: name: CISPA
Year: 2023

description: Third-party libraries ease the development of large-scale software systems. However, libraries often execute with significantly more privilege than needed to complete their task. Such additional privilege is sometimes exploited at runtime via inputs passed to a library, even when the library itself is not actively malicious. We present Mir, a system addressing dynamic compromise by introducing a fine-grained read-write-execute (RWX) permission model at the boundaries of libraries: every field of every free variable name in the context of an imported library is governed by a permission set. To help specify the permissions given to existing code, Mir’s automated inference generates default permissions by analyzing how libraries are used by their clients. Applied to over 1,000 JavaScript libraries for Node.js, Mir shows practical security (61/63 attacks mitigated), performance (2.1s for static analysis and +1.93% for dynamic enforcement), and compatibility (99.09%) characteristics and enables a novel quantification of privilege reduction.
"Counterpart" method for abundance determinations in HII regions
Creators: name: Pilyugin, Leonid S.
name: Grebel, Eva K.
name: Mattsson, Lars
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We suggest a new way of the determining abundances and electron temperatures in HII regions from strong emission lines. Our approach is based on the standard assumption that HII regions with similar intensities of strong emission lines have similar physical properties and abundances. A "counterpart" for a studied HII region may be chosen among HII regions with well-measured abundances (reference HII regions) by comparison of carefully chosen combinations of strong line intensities. Then the abundances in the investigated HII region can be assumed to be the same as that in its counterpart. In other words, we suggest to determine the abundances in HII regions "by precedent". To get more reliable abundances for the considered HII region, a number of reference HII regions is selected and then the abundances in the target HII region is estimated through extra-/interpolation. We will refer to this method of abundance determination as the counterpart method or, for brevity, the C method. We define a sample of reference HII regions and verify the validity of the C method. We find that this method produces reliable abundances. Finally, the C method is used to obtain the radial abundance distributions in the extended discs of the spiral galaxies M83, NGC4625 and NGC 628.
description: 21 pages, 11 figures, accepted for publication in the MNRAS
Another short proof of the Joni-Rota-Godsil integral formula for counting bipartite matchings
Creators: name: Emerson, Erin E.
name: Kayll, Peter Mark
Publisher: name: Faculty of Science, University of Calgary
Year: 2009

description: How many perfect matchings are contained in a given bipartite graph?

An exercise in Godsil's 1993 \textit{Algebraic Combinatorics}

solicits proof that this question's answer is an integral

involving a certain rook polynomial. Though not widely known,

this result appears implicitly in Riordan's 1958 

\textit{An Introduction to Combinatorial Analysis}. 

It was stated more explicitly and proved independently by

S.A.~Joni and G.-C.~Rota [\textit{JCTA} \textbf{29} (1980),

59--73] and C.D.~Godsil [\textit{Combinatorica} \textbf{1}

(1981), 257--262].  Another generation later, 

perhaps it's time both to simplify the proof and to broaden the

formula's reach.
description: Contributions to Discrete Mathematics, Vol 4, No 2 (2009)
АНАЛИЗ ДИНАМИКИ ЧИСЛЕННОСТИ ЛОШАДЕЙ В РЕСПУБЛИКЕ ТЫВА
Creators: name: Оюн Сергей Монгеевич
name: Монгуш Буян Михайлович
Publisher: name: Вестник Тувинского государственного университета. Естественные и сельскохозяйственные науки
Year: 2020
Subjects: коневодство; поголовье лошадей; Республика Тыва; тувинские лошади; численность лошадей; история развития

description: Материалы основаны на анализе истории развития и современного состояния основных направлений коневодства Республики Тыва. В работе представлены статистические данные о численности лошадей Тувы разных периодов, проанализированы исторические сведения и современное состояние коневодства. Установлено, что максимальный показатель по численности поголовья лошадей было достигнуто в 1940 году. За период с 1940 по 2000 гг. общее поголовье лошадей в Туве сократилась на 97 тыс. голов или на 79,5%: с 122 тыс. голов в 1940 г. до 25 тыс. голов в 2000 г. Поголовье лошадей Тувы с 2000 года имеет тенденцию к увеличению и в настоящее время составляет более 83 тыс. голов. Также выявлено, что самое большое поголовье лошадей сконцентрировано у населения – 38728 голов или 46,4 % от общего поголовья лошадей в Туве.
ПРИЕМЫ РЕШЕНИЯ МАТЕМАТИЧЕСКИХ ЗАДАЧ НА ЗАНЯТИЯХ ЭЛЕКТИВНОГО КУРСА «КОМПЛЕКСНЫЕ ЧИСЛА»
Creators: name: Танова Оксана Монгушовна
name: Власова Любовь Николаевна
name: Кара-Сал Надежда Маасовна
Publisher: name: Вестник Тувинского государственного университета. Педагогические науки
Year: 2020
Subjects: элективный курс; профильная подготовка; комплексные числа; множество точек плоскости; аналитический прием; геометрический прием

description: Статья посвящена различным приемам решения математических задач по теме «Комплексные числа». Рассматривается система заданий, связанных с нахождением множества точек на комплексной плоскости, заданных уравнениями и неравенствами, и их изображениями. Особое внимание обращается на связь аналитического и геометрического приемов решения задач. Приведены примеры различных типов задач из материалов элективного курса, который является одним из путей реализации профильного обучения школьников 11 класса. Целью данного элективного курса является углубление и расширение понятия комплексного числа, а также знакомство учащихся с элементами теории комплексных чисел. Предлагаются задачи для самостоятельного решения обучающимися для освоения знаний и способов действий на метапредметной основе.
The distribution of polynomials over finite fields, with applications to the Gowers norms
Creators: name: Green, Ben
name: Tao, Terence
Publisher: name: Faculty of Science, University of Calgary
Year: 2009

description: n this paper we investigate the uniform distribution properties of polynomials in many variables and bounded degree over a fixed finite field F of prime order. Our main result is that a polynomial P : F^n -> F is poorly-distributed only if P is determined by the values of a few polynomials of lower degree, in which case we say that P has small rank.

We give several applications of this result, paying particular attention to consequences for the theory of the so-called Gowers norms. We establish an inverse result for the Gowers U^{d+1}-norm of functions of the form f(x)= e_F(P(x)), where P : F^n -> F is a polynomial of degree less than F, showing that this norm can only be large if f correlates with e_F(Q(x)) for some polynomial Q : F^n -> F of degree at most d.

The requirement deg(P) < |F| cannot be dropped entirely. Indeed, we show the above claim fails in characteristic 2 when d = 3 and deg(P)=4, showing that the quartic symmetric polynomial S_4 in F_2^n has large Gowers U^4-norm but does not correlate strongly with any cubic polynomial. This shows that the theory of Gowers norms in low characteristic is not as simple as previously supposed. This counterexample has also been discovered independently by Lovett, Meshulam, and Samorodnitsky.

We conclude with sundry other applications of our main result, including a recurrence result and a certain type of nullstellensatz.
description: Contributions to Discrete Mathematics, Vol 4, No 2 (2009)
Non-Paraxial Accelerating Beams
Creators: name: Kaminer, Ido
name: Bekenstein, Rivka
name: Nemirovsky, Jonathan
name: Segev, Mordechai
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We present the spatially accelerating solutions of the Maxwell equations. Such non-paraxial beams accelerate in a circular trajectory, thus generalizing the concept of Airy beams. For both TE and TM polarizations, the beams exhibit shape-preserving bending with sub-wavelength features, and the Poynting vector of the main lobe displays a turn of more than 90 degrees. We show that these accelerating beams are self-healing, analyze their properties, and compare to the paraxial Airy beams. Finally, we present the new family of periodic accelerating beams which can be constructed from our solutions.
КОММУНИКАТИВНАЯ СИТУАЦИЯ КАК МЕТОД ОБУЧЕНИЯ ГОВОРЕНИЮ СТУДЕНТОВ НЕЯЗЫКОВЫХ СПЕЦИАЛЬНОСТЕЙ
Creators: name: Доржу Анай-Хаак Шой-Ооловна
Publisher: name: Вестник Тувинского государственного университета. Педагогические науки
Year: 2020
Subjects: говорение; коммуникативная ситуация; обучение; английский язык

description: В статье рассмотрена тема использования коммуникативных ситуаций в качестве метода обучения говорению на английском языке студентов неязыковых специальностей. Говорение – сложный вид речевой деятельности. Студенты неязыковых факультетов слабо владеют навыками говорения на английском языке. Причиной тому является недостаточный уровень владения английским языком на базе среднего школьного образования, отсутствие языковой среды. Актуальность этой темы определяется недостаточным количеством научных исследований, учитывающих психолого-педагогический аспект в процессе обучения английскому языку в университете. Научная новизна работы состоит в разработанной системе упражнений, направленных на развитие навыков говорения на английском языке студентов неязыковых специальностей. Целью данной статьи является исследование методики эффективного использования технологии создания коммуникативной ситуации как метода обучения говорению студентов неязыковых специальностей.
Assessing intertidal marine non-indigenous species in Canadian ports
Creators: name: Choi, Francis Ming Pong
Publisher: name: University of British Columbia
Year: 2011

description: The establishment of non-indigenous species in natural ecosystems is a growing concern at global, national, and regional scales. Over 100 known marine non-indigenous species (NIS) are found along the Pacific and Atlantic coasts of Canada. It is widely believed that commercial shipping activities associated with international ports (e.g. ballast water discharge, hull fouling) could expose native communities to a variety of NIS. Thus, harbours are recognized as critical entry points for NIS and, pending establishment, can serve as invasion hubs for secondary dispersal vectors (e.g. recreational boats). The aim of this study was to characterize intertidal NIS distributions among ports on the Pacific and Atlantic coasts of Canada and to determine if commercial shipping activities (ballast water discharge, vessel arrivals) can be directly linked to the observed patterns of established NIS. Sixteen major international ports in Canada were surveyed for species composition and abiotic conditions, including both environmental and anthropogenic factors. Species diversity for both NIS and native species were found to be significantly different between the Pacific and the Atlantic intertidal communities. Although both NIS and native species had higher diversity on the Pacific coast, the Invasion index, a novel measurement of the degree of invasion developed in this thesis, demonstrated that the Atlantic coast was actually more invaded by NIS than the Pacific. No direct link was found between commercial shipping activities and the distribution patterns of established intertidal NIS in Canadian ports. Instead, NIS distributions were found to be strongly related to salinity, sediment type, human population, aquaculture and latitude on the Pacific coast and human disturbance at docks, latitude and salinity on the Atlantic coast. In contrast to what was previously suggested, these results demonstrated that ballast water discharge and vessel arrival frequency were not detected as the main variables towards NIS establishment success. However, this study highlighted the importance of environmental conditions and local anthropogenic vectors in the establishment of NIS in new regions. Future research in conservation and management of invaded communities should include environmental conditions and the risk posed by anthropogenic activities, in addition to commercial shipping, when characterizing invasion dynamics.
On the Hall-Janko graph with 100 vertices and the near-octagon of order (2,4)
Creators: name: De Wispelaere, An
name: Van Maldeghem, Hendrik
Publisher: name: Faculty of Science, University of Calgary
Year: 2009

description: In this paper, we construct the Hall-Janko graph

inside the split Cayley hexagon H(4). Using this construction, we then embed the near-octagon of order (2,4)

as a subgeometry of the dual of H(4), with J_2:2 as its automorphism group. These constructions are

based on a lemma determining the possibilities for the structure of the intersection of two subhexagons of

order 2 in H(4).
description: Contributions to Discrete Mathematics, Vol 4, No 2 (2009)
ЦЕННОСТНЫЕ ОРИЕНТАЦИИ СОВРЕМЕННЫХ МЛАДШИХ ШКОЛЬНИКОВ
Creators: name: Ооржак Аржаана Болатовна
Publisher: name: Вестник Тувинского государственного университета. Педагогические науки
Year: 2020
Subjects: ценность; ценностные ориентации; младший школьный возраст; личность; развитие; установки; цели

description: Статья посвящена актуальной проблеме современного общества – ценностным ориентациям. В настоящее время особенно значимым становится изучение условий и закономерностей формирования ценностных ориентаций детей разных возрастов. В статье анализируется сущность понятий «ценность», «ценностные ориентации». В данной работе рассматриваются особенности становления ценностных ориентаций детей младшего школьного возраста, так как на данном возрастном этапе происходит активное формирование системы ценностей и установок. Особое внимание уделяется изучению ценностного сознания детей младшего школьного возраста, которое формировалось в условиях социально-экономических, политических преобразований в российском обществе. Выделяются и описываются характерные особенности формирования ценностных ориентаций учеников первого и четвертых классов, проводится сравнительный анализ основных ценностей первоклассников и учеников четвертого класса. Основное внимание в работе автор акцентирует на том, что у учащихся четвертого класса, по сравнению с первоклассниками, возрастает значимость жизненных ценностей, наиболее актуальными для них становятся ценности, типичные для подростков.
Gauged L_mu - L_tau Symmetry at the Electroweak Scale
Creators: name: Heeck, Julian
name: Rodejohann, Werner
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The extension of the Standard Model by a spontaneously broken abelian gauge group based on the L(mu)-L(tau) lepton number can resolve the longstanding discrepancy between experimental and theoretical values for the magnetic moment of the muon. It furthermore naturally generates mu-tau symmetric lepton mixing, introduces neutrino non-standard interactions, and the associated gauge boson Z' serves as a mediator to the right-handed neutrino sector. A detailed fit to electroweak data is performed to identify the allowed values for the mass of Z' and its mixing with the Standard Model Z. An economical new scalar sector is constructed that spontaneously breaks the new symmetry and leads to experimental consequences such as lepton flavor violation and collider signatures. Furthermore we discuss the non-abelian extension to an SU(2)', particularly the neutrino sector.
description: 22 pages, 7 figures; matches published version
Collective spontaneous emission from pairs of quantum dots: long-range vs. short-range couplings
Creators: name: Abdussalam, Wildan
name: Machnikowski, Paweł
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the spontaneous emission from a coherently delocalized exciton state in a double quantum dot as a function of the distance between the dots, focusing on the similarities and differences between the cases of radiative (long-range, dipole) and tunnel coupling between the excitons in the dots. We show that there may be no qualitative difference between the collective emission induced by these two coupling types in spite of their essentially different physical properties.
description: 3 pages, 2 figures. Conference "Jaszowiec 2011"
A Temporal Logic for Asynchronous Hyperproperties
Creators: name: Baumeister, Jan
name: Coenen, Norine
name: Bonakdarpour, Borzoo
name: Finkbeiner, Bernd
name: Sánchez, César
Publisher: name: CISPA
Year: 2023

description: Hyperproperties are properties of computational systems that require more than one trace to evaluate, e.g., many information-flow security and concurrency requirements. Where a trace property defines a set of traces, a hyperproperty defines a set of sets of traces. The temporal logics HyperLTL and HyperCTL* have been proposed to express hyperproperties. However, their semantics are synchronous in the sense that all traces proceed at the same speed and are evaluated at the same position. This precludes the use of these logics to analyze systems whose traces can proceed at different speeds and allow that different traces take stuttering steps independently. To solve this problem in this paper, we propose an asynchronous variant of HyperLTL. On the negative side, we show that the model-checking problem for this variant is undecidable. On the positive side, we identify a decidable fragment which covers a rich set of formulas with practical applications. We also propose two model-checking algorithms that reduce our problem to the HyperLTL model-checking problem in the synchronous semantics.
LINGUISTIC DIFFICULTIES OF VERB LEARNING BY FOREIGN STUDENTS
Creators: name: Artyna, Mira K.
name: Aleftina V. Taryma
Publisher: name: Вестник Тувинского государственного университета. Педагогические науки
Year: 2020
Subjects: category of a verb aspect; imperfective aspect; perfective aspect; aspectual pair; semantics of verbs

description: The article examines the linguistic difficulties in mastering the verb aspects by foreign students in a non-Slavic audience. The greatest difficulty in practical work is to select the aspectual pair, to determine the way of its formation, to characterize the way of verbal action of the analyzed word. The work pays attention to the training of the verb aspects in the exercises that reveal the students' awareness of the specific meaning, the exercises for observation based on seeing imagery. Training allows students to prepare for speech practice, for the ability to vary and use the desired verb aspect correctly.
Poster: Transferability of an Infection Prevention Concept for the Reduction of Nosocomial Infections Especially Surgical Site Infections
Creators: name: Neuwirth, Meike M.
name: Maczewski, Stefanie
name: Otchwemah, Robin
name: Mattner, Frauke
Publisher: name: Zenodo
Year: 2021
Subjects: infection prevention
nosocomial infections
postoperative wound infections
modular training program
Hand hygiene adherence
aseptic dressing change
Surgical Site Infections

description: Introduction:
 The “HygArzt” project investigated the effectiveness, efficiency of infection prevention measures (IPM) implemented by an infection prevention link physician (PLP) in the trauma surgery/orthopaedics department. In the first phase of the project, the IPM implemented in a pilot hospital led to increases in adherence for all indications of hand hygiene and dressing change as well as to a reduction in the rate of nosocomial infections (NI), especially postoperative wound infections (SSI). Objectives:
 In a second phase, based on the process analyses and the results of the pilot hospital, a modular training program for PLP was developed and it was investigated whether the concept could be transferred to other study hospitals. Methods:
 In the intervention phase, the PLP was trained in IPM according to the "train-the-trainer approach" (patient decolonization before surgery, standardized wound care, etc.), which he/she subsequently implemented in his/her department. In the post-phase, HHA rates as well as NI and SSI rates were collected again. Results:
 To examine the impact of implemented IPM on infection rates (NI, SSI), pre- and post-data were compared. In the pre-phase (237 surgeries), NI rate (N=12) was 5.1% (CI 95% 2.4; 7.8) and SSI rate (N=5) was 2.1% (CI 95% 0.3; 3.9). In the post-phase (177 surgeries), a NI rate (N=7) of 4.1% (CI 95% 1.3; 7.0) was found and no SSI. The introduction of the dressing change concept significantly increased HHA of all indications (pre=72.2%; post=95.6%, p<.001). The strongest increase in HHA occurred in the indication "hand disinfection between unclean and clean phase" (pre=49.3%; post=86.5%, p<.001). HHA also increased for the other indications "before preparation for dressing change" (pre=77.0%; post=98.3%, p<,001); "directly before dressing change" (pre=78.9%; post=98.3%, p<.001,); "after dressing change" (pre=83.5%; post=100%, p<.001). Conclusion:
 By implementing the IPM, infection rates were also slightly reduced and HHA significantly increased for all indications of dressing change in the study hospital. This suggests that the developed bundle of IPM can be transferred to other trauma surgery departments through tailored training. Continuous process analysis could identify individual weaknesses in patient care and adapt intervention concepts.
SLALOM: a Language for SLA specification and monitoring
Creators: name: Correia, Anacleto
name: Abreu, Fernando Brito e
name: Amaral, Vasco
Publisher: name: arXiv
Year: 2011
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: D.2.1

description: IT services provisioning is usually underpinned by service level agreements (SLAs), aimed at guaranteeing services quality. However, there is a gap between the customer perspective (business oriented) and that of the service provider (implementation oriented) that becomes more evident while defining and monitoring SLAs. This paper proposes a domain specific language (SLA Language for specificatiOn and Monitoring - SLALOM) to bridge the previous gap. The first step in SLALOM creation was factoring out common concepts, by composing the BPMN metamodel with that of the SLA life cycle, as described in ITIL. The derived metamodel expresses the SLALOM abstract syntax model. The second step was to write concrete syntaxes targeting different aims, such as SLA representation in process models. An example of SLALOM's concrete syntax model instantiation for an IT service sup-ported by self-service financial terminals is presented.
description: 12 pages, 5 figures
ОБРАЗ СУПРУГА В ПРЕДСТАВЛЕНИЯХ ДЕВУШЕК, ПРОЖИВАЮЩИХ В
Creators: name: Минзек Айлан Алексеевна
Publisher: name: Вестник Тувинского государственного университета. Педагогические науки
Year: 2020
Subjects: супруг; тувинская молодѐжь; образ супруга; брак; республика Тыва

description: В статье описывается образ супруга в представлениях девушек, проживающих в республике Тыва, в сравнении с представлениями о супруге женщин старшего поколения. Интерес к обозначенной проблеме связан с так называемым кризисом семьи, который достаточно ярко проявляется и в республике: неполные семьи, разводы, отказ от воспитания детей и т.д. В ходе исследования планировалось оценить насколько верно предположение о том, что у современной молодежи сформировался чрезмерно идеализированный образ будущего супруга, что в дальнейшем может приводить к трудностям в реальных супружеских отношениях. Исследование проводилось в г. Кызыле Республики Тыва в первой половине 2020 года. В качестве респондентов выступили 30 девушек, а также 30 женщин в возрасте от 60 до 73 лет. Эмпирический материал собирался с помощью стандартизированного интервью, а также анализа письменных работ участников исследования. В ходе исследования выявлено, что представления девушек о будущем супруге в значительной степени идеализированы: в качестве «эталона» достаточно часто выступают некие «мифологизированные» герои, например, герои, описанные в народном фольклоре или литературных произведениях.
Development of a unique sandwich enzyme-linked immunosorbent assay based on monoclonal antibodies for the specific detection of the egg drop syndrome virus
Creators: name: Wei, Qiang
name: Gao, Yanling
name: Liu, Yunchao
name: Li, Qingmei
name: Jin, Qianyue
name: Chai, Shujun
name: Song, Yapeng
name: Xing, Guangxu
name: Zhang, Gaiping
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: An abrupt decrease in egg production and quality in laying hens can be brought on by the avian adenovirus known as the egg drop syndrome virus (EDSV). So far, there are no efficient commercial diagnostic approaches for EDSV. In the present study, we first purified two monoclonal antibodies (mAbs 5G4 and 6G6) specifically against the EDSV fibre protein. The mAb 5G4 was then employed as capture antibody. Additionally, the detection antibody 6G6 (HRP-6G6) was conjugated with horseradish peroxidase. Consequently, based on these two mAbs, we developed a sandwich enzyme-linked immunosorbent assay (ELISA) for EDSV detection. Specificity evaluation demonstrated that only EDSV gave a positive result while other avian viruses showed negative results. Sensitivity investigation showed that the limit of detection of EDSV was 102.9 TCID50/ml and the limit of detection of the purified His-Fiber was 5 ng/ml. Furthermore, the screening of samples from infected chickens showed that this method was very effective and could be applied to the detection of EDSV in infected samples. In summary, the sandwich enzyme-linked immunosorbent assay developed here provides an efficient, sensitive, and large-scale method for the specific diagnosis of EDSV. A sandwich ELISA was developed to detect EDSV using the mAbs 5G4 and HRP-6G6.The sandwich ELISA maintained high specificity and sensitivity.The sandwich ELISA had equivalent consistency with real-time PCR assay. A sandwich ELISA was developed to detect EDSV using the mAbs 5G4 and HRP-6G6. The sandwich ELISA maintained high specificity and sensitivity. The sandwich ELISA had equivalent consistency with real-time PCR assay.
QuickSilver: Modeling and Parameterized Verification for Distributed Agreement-Based Systems
Creators: name: Jaber, Nouraldin
name: Wagner, Christopher
name: Jacobs, Swen
name: Kulkarni, Milind
name: Samanta, Roopsha
Publisher: name: CISPA
Year: 2023

description: The last decade has sparked several valiant efforts in deductive verification of distributed agreement protocols such as consensus and leader election. Oddly, there have been far fewer verification efforts that go beyond the core protocols and target applications that are built on top of agreement protocols. This is unfortunate, as agreement-based distributed services such as data stores, locks, and ledgers are ubiquitous and potentially permit modular, scalable verification approaches that mimic their modular design. We address this need for verification of distributed agreement-based systems through our novel modeling and verification framework, QuickSilver, that is not only modular, but also fully automated. The key enabling feature of QuickSilver is our encoding of abstractions of verified agreement protocols that facilitates modular, decidable, and scalable automated verification. We demonstrate the potential of QuickSilver by modeling and efficiently verifying a series of tricky case studies, adapted from real-world applications, such as a data store, a lock service, a surveillance system, a pathfinding algorithm for mobile robots, and more.
ИЗУЧЕНИЕ РОМАНА-ЭПОПЕИ «УЛУГ-ХЕМ НЕУГОМОННЫЙ» К. КУДАЖЫ В АСПЕКТЕ ХУДОЖЕСТВЕННОГО ВРЕМЕНИ НА УРОКАХ ЛИТЕРАТУРЫ В 11 КЛАССЕ
Creators: name: Кужугет Шенне Юрьевна
Publisher: name: Вестник Тувинского государственного университета. Педагогические науки
Year: 2020
Subjects: роман-эпопея; писатель; художественное время; календарное время; событийное время; перцептивное время; историческое время; пути изучения литературного произведения; образ; программа

description: Актуальность настоящей работы обусловлена недостаточным изучением литературных произведений в аспекте художественного времени на уроках тувинской литературы в школе. В качестве материала нами выбран роман-эпопея в четырех томах К. Кудажы «Улуг-Хем неугомонный», включенный в образовательную программу 11 класса по предмету «Родная (тувинская) литература». Целью работы является выявление особенностей изучения литературного произведения в аспекте художественного времени на уроках тувинской литературы в 11 классе. В изучении художественного времени романа-эпопеи «Улуг-Хем неугомонный» мы опираемся на классификацию Н. А. Николиной, где художественное время в целом обусловлено взаимодействием трех темпоральных «осей»: календарного, событийного и перцептивного времени. Методами исследования явились теоретический анализ, синтез, обобщение информации.
Propagation of Vortex Electron Wave Functions in a Magnetic Field
Creators: name: Gallatin, Gregg M.
name: McMorran, Ben
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The physics of coherent beams of photons carrying axial orbital angular momentum (OAM) is well understood and such beams, sometimes known as vortex beams, have found applications in optics and microscopy. Recently electron beams carrying very large values of axial OAM have been generated. In the absence of coupling to an external electromagnetic field the propagation of such vortex electron beams is virtually identical mathematically to that of vortex photon beams propagating in a medium with a homogeneous index of refraction. But when coupled to an external electromagnetic field the propagation of vortex electron beams is distinctly different from photons. Here we use the exact path integral solution to Schrodingers equation to examine the time evolution of an electron wave function carrying axial OAM. Interestingly we find that the nonzero OAM wave function can be obtained from the zero OAM wave function, in the case considered here, simply by multipling it by an appropriate time and position dependent prefactor. Hence adding OAM and propagating can in this case be replaced by first propagating then adding OAM. Also, the results shown provide an explicit illustration of the fact that the gyromagnetic ratio for OAM is unity. We also propose a novel version of the Bohm-Aharonov effect using vortex electron beams.
description: 14 pages, 2 figures, submitted to Phys Rev A
Membership Leakage in Label-Only Exposures
Creators: name: Li, Zheng
name: Zhang, Yang
Publisher: name: CISPA
Year: 2023

description: Machine learning (ML) has been widely adopted in various privacy-critical applications, e.g., face recognition and medical image analysis. However, recent research has shown that ML models are vulnerable to attacks against their training data. Membership inference is one major attack in this domain: Given a data sample and model, an adversary aims to determine whether the sample is part of the model's training set. Existing membership inference attacks leverage the confidence scores returned by the model as their inputs (score-based attacks). However, these attacks can be easily mitigated if the model only exposes the predicted label, i.e., the final model decision. In this paper, we propose decision-based membership inference attacks and demonstrate that label-only exposures are also vulnerable to membership leakage. In particular, we develop two types of decision-based attacks, namely transfer attack, and boundary attack. Empirical evaluation shows that our decision-based attacks can achieve remarkable performance, and even outperform the previous score-based attacks in some cases. We further present new insights on the success of membership inference based on quantitative and qualitative analysis, i.e., member samples of a model are more distant to the model's decision boundary than non-member samples. Finally, we evaluate multiple defense mechanisms against our decision-based attacks and show that our two types of attacks can bypass most of these defenses.
Microbial transformation of the anti-aging agent cycloastragenol by Mucor racemosus
Creators: name: Lin, Haijun
name: Jiang, Baocheng
name: Chen, Chen
name: Song, Yan
name: Yang, Min
name: Huang, Huilian
name: Chen, Guangtong
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Computational Biology

description: The microbial transformation of cycloastragenol (CA) by Mucor racemosus AS 3.20 was investigated. Seven isolated products were identified as (20R,24S)-3β,6α,16β,25- tetrahydroxy-20,24-epoxy-9,10-seco-cycloartan-9(11),10(19)-diene (1), (20R,24S)- 3β,6α,16β,25-tetrahydroxy-20,24-epoxy-9,10-seco-cycloartan-1(10),9(11)-diene (2), (20R,24S)-3β,16β,25-trihydroxy-6α,19α;20,24-diepoxy-9,10-seco-cycloartan-9(11)-ene (3), (20R,24S)-6α,16β,25-trihydroxy-3β,10β;20,24-diepoxy-9,10-seco- cycloartan-11-one (4), (20R,24S)-16β,25-dihydroxy-6α-methoxy-3β,10β;20,24- diepoxy-9,10-seco-cycloartan-7(8),9(11)-diene (5), (20R,24S)-6α,16β,25-trihydroxy-3β,10β;20,24-diepoxy-9,10-seco-cycloartan-9(11)-ene (6), and (20R,24S)-3β,6α,16β,25-tetrahydroxy-19-acetoxy-ranunculan-9(10)-ene (7) by spectroscopic analysis. Among them, compounds 2 and 5 were new compounds. M. racemosus could catalyze ring expansion and epoxidation reactions to form 3β,10β-epoxy- or 6α,19α-epoxy-9,10-seco-cycloartane structures. These regio- and stereo-selective reactions are difficult to achieve by chemical means. In addition, the biological effects of isolated metabolites on increasing the lifespan of Caenorhabditis elegans were evaluated. Most of the metabolites could significantly extend the lifespan of C. elegans at 50 μM.
АКТУАЛЬНЫЕ ОБРАЗОВАТЕЛЬНЫЕ МЕТОДИКИ И ПРОГРАММЫ ПРИ ПОДГОТОВКЕ СТУДЕНТОВ ПЕДАГОГИЧЕСКОГО ОБРАЗОВАНИЯ ПРОФИЛЯ «ТЕХНОЛОГИЯ»
Creators: name: Ондар Аниела Борисовна
Publisher: name: Вестник Тувинского государственного университета. Педагогические науки
Year: 2020
Subjects: метод; методика; конструирование одежды; технология швейных изделий; процесс обучения; технологическое образование; формирование компетенций; технологические карты швейных изделий

description: В статье рассматривается взаимосвязь образовательных методик для получения успешных практических результатов в профессиональной подготовке бакалавров профиля «Технология» (обслуживающий труд). В работе показан комплекс образовательных методик и примеры использования педагогических технологий для освоения профессиональных компетенций в процессе изучения следующих дисциплин: «Конструирование и моделирование швейных изделий», «Технология швейных изделий», «Методика обучения технологии». Студенты знакомятся с основными технологическими терминами, принципами технической унификации в конструировании и технологии. Одним из творческих заданий является разработка серии унифицированных карманов с применением классических и современных технологий и различных методик декорирования. Таким образом, профессия технолога сейчас особенно важна, ведь для моды время часто играет решающую роль.
X-ray properties of radio-selected star forming galaxies in the Chandra-COSMOS survey
Creators: name: Ranalli, P.
name: Comastri, A.
name: Zamorani, G.
name: Cappelluti, N.
name: Civano, F.
name: Georgantopoulos, I.
name: Gilli, R.
name: Schinnerer, E.
name: Smolcic, V.
name: Vignali, C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: X-ray surveys contain sizable numbers of star forming galaxies, beyond the AGN which usually make the majority of detections. Many methods to separate the two populations are used in the literature, based on X-ray and multiwavelength properties. We aim at a detailed test of the classification schemes and to study the X-ray properties of the resulting samples. We build on a sample of galaxies selected at 1.4 GHz in the VLA-COSMOS survey, classified by Smolcic et al. (2008) according to their optical colours and observed with Chandra. A similarly selected control sample of AGN is also used for comparison. We review some X-ray based classification criteria and check how they affect the sample composition. The efficiency of the classification scheme devised by Smolcic et al. (2008) is such that ~30% of composite/misclassified objects are expected because of the higher X-ray brightness of AGN with respect to galaxies. The latter fraction is actually 50% in the X-ray detected sources, while it is expected to be much lower among X-ray undetected sources. Indeed, the analysis of the stacked spectrum of undetected sources shows, consistently, strongly different properties between the AGN and galaxy samples. X-ray based selection criteria are then used to refine both samples. The radio/X-ray luminosity correlation for star forming galaxies is found to hold with the same X-ray/radio ratio valid for nearby galaxies. Some evolution of the ratio may be possible for sources at high redshift or high luminosity, tough it is likely explained by a bias arising from the radio selection. Finally, we discuss the X-ray number counts of star forming galaxies from the VLA- and C-COSMOS surveys according to different selection criteria, and compare them to the similar determination from the Chandra Deep Fields. The classification scheme proposed here may find application in future works and surveys.
description: 15 pages, 7 figures, 3 tables
МАЛЫЕ ХУРАЛЫ – ОРГАНЫ ЗАКОНОДАТЕЛЬНОЙ ВЛАСТИ ТУВИНСКОЙ НАРОДНОЙ РЕСПУБЛИКИ (1924-1944 гг.)
Creators: name: Моллеров Николай Михаилович
Publisher: name: Вестник Тувинского государственного университета. Социальные и гуманитарные науки
Year: 2020
Subjects: Тувинская Народная Республика; Малый Хурал; законодательная деятельность; формирование органов власти

description: Предметом исследования в настоящей статье являются ранее не исследованные Малые Хуралы Тувинской Народной Республики. В ней рассмотрены вопросы возникновения и становления этого важного института власти. На архивных материалах прослежены компетенция и конкретное содержание их деятельности. Показаны место и роль Малых Хуралов в развитии ТНР, в формировании органов власти тувинского государства, в правовом обеспечении всей системы власти и тувинского общества. Обращается внимание на обеспечение Малыми Хуралами народовластия, на решение ими таких судьбоносных исторических вопросов, как пересмотр левого курса на ускоренное строительство социализма в 1933 г. и вхождение ТНР в состав СССР и РСФСР в 1944 г., на их деятельность в годы Великой Отечественной войны.
Astral (n_4) configurations of pseudolines
Creators: name: Berman, Leah Wrenn
Publisher: name: Faculty of Science, University of Calgary
Year: 2008

description: An \emph{astral  $(n_{4})$ configuration of pseudolines} is a collection in the Euclidean plane of $n$ points and $n$ pseudolines (that is, topological lines that have been modified in the Euclidean plane from straight lines only in a finite part, which cross each other only once, or have parallel infinite part and are disjoint), where each point lies on four pseudolines, each pseudoline contains four points, and the points and pseudolines form two symmetry (transitivity) classes each. We describe how to construct astral $(n_{4})$ pseudoline configurations with dihedral symmetry, and we discuss the existence of astral $(n_{4})$ configurations with only chiral symmetry.
description: Contributions to Discrete Mathematics, Vol 3, No 2 (2008)
ЧЕЛОВЕК И ЕГО ХАРАКТЕРИСТИКА В РУССКИХ И ТУВИНСКИХ ПОСЛОВИЦАХ И ПОГОВОРКАХ КАК ОТРАЖЕНИЕ НАЦИОНАЛЬНО-ЦЕННОСТНЫХ ОРИЕНТИРОВ В ЯЗЫКОВОЙ КАРТИНЕ МИРА
Creators: name: Бытотова Римма Светославовна
Publisher: name: Вестник Тувинского государственного университета. Социальные и гуманитарные науки
Year: 2020
Subjects: языковая картина мира; пословицы и поговорки; русский язык; тувинский язык; национально-ценностные ориентиры; положительная характеристика; отрицательная характеристика; смысловое пространство

description: В статье рассматриваются пословицы и поговорки русского и тувинского языков как одно из проявлений многоуровневой структуры языковой картины мира; пословицы и поговорки определяются как продукт образного осмысления действительности носителем языка, содержащий в себе национально-ценностные ориентиры в мировоззрении русского и тувинского народов. Распределяются русские и тувинские пословицы и поговорки по их внутреннему значению с учетом положительной и отрицательной характеристик человека по внутренним качествам, по физическому (физиологическому) состоянию, по материальному состоянию, по социальному статусу (сословию) и объединяются по определенным смысловым пространствам. Фактический языковой материал русского языка представлен преимущественно пословицами и поговорками, включающими в свой состав субстантивированные прилагательные. Это обусловлено тем, что они сохраняют ясность «внутренней формы»: обозначаемое ими лицо как бы характеризуется тем признаком, который подчеркнут данным субстантивированным прилагательным. Рассматривались также пословицы и поговорки, построенные по схеме «кто…, тот...» или «тот…., кто….». В тувинском языке подбирались им смысловые соответствия.
Enhanced non-quark-antiquark and non-glueball Nc behavior of light scalar mesons
Creators: name: Nebreda, J.
name: Pelaez, J. R.
name: Rios, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We show that the latest and very precise dispersive data analyses require a large and very unnat- ural fine-tuning of the 1/Nc expansion at Nc = 3 if the f_0(600) and K(800) light scalar mesons are to be considered predominantly quark-antiquark states, which is not needed for light vector mesons. For this, we use scattering observables whose 1/Nc corrections are suppressed further than one power of 1/Nc for quark-antiquark or glueball states, thus enhancing contributions of other nature. This is achieved without using unitarized ChPT, but if it is used we can also show that it is not just that the coefficients of the 1/Nc expansion are unnatural, but that the expansion itself does not even follow the expected 1/Nc scaling of a glueball or a quark-antiquark meson.
description: Discussion disfavoring a glueball interpretation added. Version published in Phys. Rev. D
Explicit formulas for Drinfeld modules and their periods
Creators: name: El-Guindy, Ahmad
name: Papanikolas, Matthew A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G09 (Primary) 11F52, 11R58 (Secondary)

description: We provide explicit series expansions for the exponential and logarithm functions attached to a rank r Drinfeld module that generalize well known formulas for the Carlitz exponential and logarithm. Using these results we obtain a procedure and an analytic expression for computing the periods of rank 2 Drinfeld modules and also a criterion for supersingularity.
description: 20 pages
КОЙБАЛЬСКИЙ ГОВОР ХАКАССКОГО ЯЗЫКА: К ИСТОРИИ ФОРМИРОВАНИЯ И ОБЩЕЙ ТИПОЛОГИИ
Creators: name: Каксин Андрей Данилович
Publisher: name: Вестник Тувинского государственного университета. Социальные и гуманитарные науки
Year: 2020
Subjects: языковое развитие; взаимодействие языков; строй языка; койбальский говор хакасского языка

description: В статье анализируется общий строй (или структура) койбальского говора хакасского языка, в современных генетических классификациях определяемого как часть тюркского континуума. В то же время указываются и явления, предопределенные тем обстоятельством, что на территории, ныне занимаемой хакасским языком, бытовал койбальский язык –представитель южной ветви самодийской языковой группы. На этапе формирования хакасской народности данный говор достаточно сильно отличался от других наречий, составивших основу общенародного языка. В таком обособленном положении этот говор остается и сегодня, а это именно то состояние, которое негативно влияет на витальность языка. В связи с этим производится реконструкция схемы взаимодействия языков, в результате реализации которой появился койбальский говор хакасского языка. Общий строй исследуемой языковой идиомы характеризуется исходя из совокупности фонетических и грамматических черт (признаков) на современном этапе.