cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effect of thermal inhomogeneity for THz radiation from intrinsic Josephson junction stacks of Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$
Creators: name: Kakeya, Itsuhiro
name: Omukai, Yuta
name: Suzuki, Minoru
name: Yamamoto, Takashi
name: Kadowaki, Kazuo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Terahertz radiation from the mesa structures of Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ is detected in samples with thin electrodes $< 100$ nm. In samples with thick electrodes $\simeq$ 400 nm, neither radiations nor voltage jumps in current-voltage characteristics are detected. This suggests that the thin electrode helps excite the Josephson plasma oscillation as a result of the poor heat flow through the electrode. The shielding effect by the electrode is not essential. We consider that the local temperature rise is the origin of the synchronization of the phase kink for terahertz radiation.
description: 4 pages, 3 figures
Electron spin resonance of single iron-phthalocyanine molecules and role of their non-localized spins in magnetic interaction (source data, codes and raw images)
Creators: name: Zhang
name: Wolf, Christoph
name: Wang, Yu
name: Aubin, Hervé
name: Bilgeri, Tobias
name: Willke, Philip
name: Heinrich, Andreas
name: Choi, Taeyoung
Publisher: name: figshare
Year: 2021
Subjects: subject: 30699 Physical Chemistry not elsewhere classified
subject: FOS: Chemical sciences

description: All the source data, codes and raw images used in main text and supplementary information are supplied in these .zip files. After unzipped, three folders can be found and include the corresponding datasets indicated by each folder's name. In the three folders, the datasets are sorted by the number of the figure where the datasets are used.
Position control of flexible shafts using first order dynamic sliding mode controller
Creators: name: Ma, Jian
Publisher: name: University of Calgary
Year: 2007

description: Bibliography: p. 53-60
description: With the increasing demand for high-speed, high accuracy, and low energy consumption, light-weight mechanisms have become increasingly desirable. Position control of flexible shafts in light-weight mechanisms is a challenging research topic due to the nonlinear characteristics and model uncertainties caused by structural flexibility. This thesis provides a method of designing first order dynamic sliding mode controller for position control of flexible shafts along with the experimental evaluation. The experimental apparatus with flexible shafts was modeled using properties of lightly damped second order systems. The first order dynamic sliding mode controllers were designed using optimization method for designing the sliding surfaces. The tuning guidelines for sliding mode controllers were explored. The test results showed that the first order dynamic sliding mode controller possessed the properties of chattering-free and smooth control action, and had better performance as measured by robust control metrics.
Bilingual Problems: Studying the Security Risks Incurred by Native Extensions in Scripting Languages
Creators: name: Staicu, Cristian-Alexandru
name: Rahaman, Sazzadur
name: Kiss, Ágnes
name: Backes, Michael
Publisher: name: CISPA
Year: 2023

description: Scripting languages are continuously gaining popularity due to their ease of use and the flourishing software ecosystems that surround them. These languages offer crash and memory safety by design, thus, developers do not need to understand and prevent low-level security issues like the ones plaguing the C code. However, scripting languages often allow native extensions, which are a way for custom C/C++ code to be invoked directly from the high-level language. While this feature promises several benefits such as increased performance or the reuse of legacy code, it can also break the language's guarantees, e.g., crash-safety. In this work, we first provide a comparative analysis of the security risks of native extension APIs in three popular scripting languages. Additionally, we discuss a novel methodology for studying the misuse of the native extension API. We then perform an in-depth study of npm, an ecosystem which is most exposed to threats introduced by native extensions. We show that vulnerabilities in extensions can be exploited in their embedding library by producing reads of uninitialized memory, hard crashes or memory leaks in 33 npm packages, simply by invoking their API with well-crafted inputs. Moreover, we identify six open-source web applications in which such exploits can be deployed remotely by a weak adversary. Finally, we were assigned seven security advisories for the work presented in this paper, most labeled as high severity.
title: Анализ информационных характеристик объектов химической технологии
Creators: name: Юсупбеков, Н.Р.
name: Гулямов, Ш.М.
name: Зайнутдинова, М.Б.
name: Хожиева, Н.Ж.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2019

description: С целью введения обобщенных оценок степени совершенства технологических схем химико-технологических систем рассмотрены основные информационные характеристики химико-технологических систем, которые могут быть определены по результатам статистической обработки случайных функций выходных координат объектов. Изложена методика расчёта информационных характеристик объектов химической технологии на примере термо-динамического анализа функционирования отделения моноэтаноламиновой очистки газа на химическом предприятии.
Pairwise Velocities of Dark Matter Halos: a Test for the Lambda Cold Dark Matter Model using the Bullet Cluster
Creators: name: Thompson, Robert
name: Nagamine, Kentaro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The existence of 1E0657-56 poses a challenge to the concordance Lambda cold dark matter model. Here we investigate the velocity distribution of dark matter halo pairs in large N-body simulations with differing box sizes (250Mpc/h-2 Gpc/h) and resolutions. We examine statistics such as the halo masses, pairwise halo velocities (v_{12}), and pair separation distances. We then compare our results to the initial conditions (ICs) required to reproduce the observational properties of 1E0657-56 in non-cosmological hydrodynamical simulations. We find that the high velocity tail of the v_{12} distribution extends to greater velocities as we increase the box size. We also find that the number of high-v_{12} pairs increases as we increase the particle count and resolution with a fixed box size, however, this increase is mostly due to lower mass halos which do not match the observed masses of 1E0657-56. We find that the redshift evolution is not very strong for the v_{12} distribution function between z=0.0 and z~0.5. We identify some pairs whose v_{12} resemble the required ICs, however, even the best candidates have either wrong halo mass ratios, or too large separations. Our simulations suggest that it is very difficult to produce such ICs at z=0.0, 0.296,& 0.489 in comoving volumes as large as (2Gpc/h)^3. Based on the extrapolation of our cumulative v_{12} function, we find that one needs a simulation with a comoving box size of (4.48Gpc/h)^3 and 2240^3 DM particles in order to produce at least one pair of halos that resembles the required v_{12} and observed masses of 1E0657-56. We find that the probability of finding a halo pair with v_{12}>=3000km/s and masses >=10^{14}Msun to be 2.76x10^{-8} at z=0.489. We conclude that either 1E0657-56 is incompatible with the concordance LCDM universe, or the ICs suggested by the non-cosmological simulations must be revised to give a lower value of v_{12}.
description: 13 pages, 15 figures, 4 tables, MNRAS, in press
title: Многоагентная система защиты информации от несанкционированного доступа
Creators: name: Бекмуратов, Т.Ф.
name: Ботиров, Ф.Б.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2019

description: Проанализированы методы и инструменты разблокировки данных из локальной сети. Проанализированы современные методы и программные средства защиты данных от несанкционированного доступа из локальной сети. Преимущества и недостатки системы DLP (предотвращение потери / утечки данных) демонстрируют защиту данных от несанкционированного доступа. Предложены критерии повышения эффективности системы DLP и системы DLP с многоагентным интеллектом.
CodeCity: On-Screen or in Virtual Reality? - Replication Package
Creators: name: Moreno-Lumbreras, David
name: Minelli, Roberto
name: Villaverde, Andrea
name: Lanza, Michele
name: González-Barahona, Jesus M.
Publisher: name: Zenodo
Year: 2021
Subjects: Software Visualization
Empirical
Technological
3D
Virtual Reality
web
Experiment
software evolution
city metaphor
codecity
reverse engineering

description: The files attached contain the replication package for the article "CodeCity: On-Screen or in Virtual Reality?". Please, unzip the zip file and follow the README.md file
Radii of Starlikeness Associated with the Lemniscate of Bernoulli and the Left-Half Plane
Creators: name: Ali, Rosihan M.
name: Jain, Naveen
name: Ravichandran, V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30C45

description: A normalized analytic function f defined on the open unit disk in the complex plane is in the class SL if zf'(z)/f(z) lies in the region bounded by the right-half of the lemniscate of Bernoulli given by |w^2 - 1| < 1. In the present investigation, the SL-radii for certain well-known classes of functions are obtained. Radius problems associated with the left-half plane are also investigated for these classes
(M)WAIT for It: Bridging the Gap between Microarchitectural and Architectural Side Channels
Creators: name: Zhang, Ruiyi
name: Kim, Taehyun
name: Weber, Daniel
name: Schwarz, Michael
Publisher: name: CISPA
Year: 2023

description: In the last years, there has been a rapid increase in microarchitectural attacks, exploiting side effects of various parts of the CPU. Most of them have in common that they rely on timing differences, requiring a high-resolution timer to make microarchitectural states visible to an attacker. In this paper, we present a new primitive that converts microarchitectural states into architectural states without relying on time measurements. We exploit the unprivileged idle-loop optimization instructions umonitor and umwait introduced with the new Intel microarchitectures (Tremont and Alder Lake). Although not documented, these instructions provide architectural feedback about the transient usage of a specified memory region. In three case studies, we show the versatility of our primitive. First, with Spectral, we present a way of enabling transient-execution attacks to leak bits architecturally with up to 200 kbit/s without requiring any timer. Second, we show traditional side-channel attacks without relying on a timer. Finally, we demonstrate that when augmented with a coarse-grained timer, we can also mount interrupt-timing attacks, allowing us to, e.g., detect which website a user opens. Our case studies highlight that the boundary between architecture and microarchitecture becomes more and more blurry, leading to new attack variants and complicating effective countermeasures.
Environ centrality reveals the tendency of indirect effects to homogenize the functional importance of species in ecosystems
Creators: name: Fann, Sarah L.
name: Borrett, Stuart R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Ecologists and conservation biologists need to identify the relative importance of species to make sound management decisions and effectively allocate scarce resources. We introduce a new method, termed environ centrality, to determine the relative importance of a species in an ecosystem network with respect to ecosystem energy--matter exchange. We demonstrate the uniqueness of environ centrality by comparing it to other common centrality metrics and then show its ecological significance. Specifically, we tested two hypotheses on a set of 50 empirically-based ecosystem network models. The first concerned the distribution of centrality in the community. We hypothesized that the functional importance of species would tend to be concentrated into a few dominant species followed by a group of species with lower, more even importance as is often seen in dominance--diversity curves. Second, we tested the systems ecology hypothesis that indirect relationships homogenize the functional importance of species in ecosystems. Our results support both hypotheses and highlight the importance of detritus and nutrient recyclers such as fungi and bacteria in generating the energy--matter flow in ecosystems. Our homogenization results suggest that indirect effects are important in part because they tend to even the importance of species in ecosystems. A core contribution of this work is that it creates a formal, mathematical method to quantify the importance species play in generating ecosystem activity by integrating direct, indirect, and boundary effects in ecological systems.
description: 21 pages, 6 figures, 3 tables
title: Устойчивые алгоритмы адаптивного управления объектами с запаздыванием в управлении
Creators: name: Игамбердиев, Х.З.
name: Каримов, Д.Р.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2019

description: Приводятся устойчивые алгоритмы адаптивного управления объектами с запаздыванием в управлении. Показано, что задача о вычислении псевдообратной матрицы для управления является в общем случае неустойчивой по отношению к возмущениям матрицы. Для решения уравнения используется метод минимальной псевдообратной матрицы и сингулярного разложения. Предлагаемые вычислительные схемы позволяют синтезировать устойчивые алгоритмы адаптивного управления объектами с запаздыванием в управлении и обеспечивают высокое качество процессов управления.
Millimeter and sub-millimeter atmospheric performance at Dome C combining radiosoundings and ATM synthetic spectra
Creators: name: De Gregori, S.
name: De Petris, M.
name: Decina, B.
name: Lamagna, L.
name: Pardo, J. R.
name: Petkov, B.
name: Tomasi, C.
name: Valenziano, L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The reliability of astronomical observations at millimeter and sub-millimeter wavelengths closely depends on a low vertical content of water vapor as well as on high atmospheric emission stability. Although Concordia station at Dome C (Antarctica) enjoys good observing conditions in this atmospheric spectral windows, as shown by preliminary site-testing campaigns at different bands and in, not always, time overlapped periods, a dedicated instrument able to continuously determine atmospheric performance for a wide spectral range is not yet planned. In the absence of such measurements, in this paper we suggest a semi-empirical approach to perform an analysis of atmospheric transmission and emission at Dome C to compare the performance for 7 photometric bands ranging from 100 GHz to 2 THz. Radiosoundings data provided by the Routine Meteorological Observations (RMO) Research Project at Concordia station are corrected by temperature and humidity errors and dry biases and then employed to feed ATM (Atmospheric Transmission at Microwaves) code to generate synthetic spectra in the wide spectral range from 100 GHz to 2 THz. To quantify the atmospheric contribution in millimeter and sub-millimeter observations we are considering several photometric bands in which atmospheric quantities are integrated. The observational capabilities of this site at all the selected spectral bands are analyzed considering monthly averaged transmissions joined to the corresponding fluctuations. Transmission and pwv statistics at Dome C derived by our semi-empirical approach are consistent with previous works. It is evident the decreasing of the performance at high frequencies. We propose to introduce a new parameter to compare the quality of a site at different spectral bands, in terms of high transmission and emission stability, the Site Photometric Quality Factor.
description: accepted to MNRAS with minor revisions
Increasing the chemical functionality of DNA enzymes
Creators: name: Lam, Curtis Hon Ming
Publisher: name: University of British Columbia
Year: 2011

description: Deoxyribonucleic acid (DNA) has long been known as the storage of genetic material. DNA is chemically stable and predominantly found as a double helix of antiparallel complementary strands. Due to the development of in vitro selection techniques, artificial single-stranded DNA molecules have been discovered that can catalyze a range of reactions including the sequence-specific cleavage of ribonucleic acids (RNA). Such DNA enzymes (DNAzymes) are being studied for the in vivo cleavage of mRNA. Compared to protein enzymes, DNAzymes have far fewer functional groups to employ for catalysis. In order to increase the chemical functionality of DNAzymes, eight modified nucleoside triphosphates were synthesized: three dUTP’s modified at the 5-position with either a phenol, phenylboronic acid or guanidinium and five dATP’s modified at the 8-position with imidazoles that are attached with linkers of various composition, length and flexibility. After the synthesis of the modified nucleotides, the incorporation of seven of them into oligonucleotides by DNA polymerases was studied. Under primer extension conditions, the guanidinium- and phenol-modified dUTP’s were found to be good substrates for several DNA polymerases including Pfu (exo–) and Vent (exo–). Under PCR conditions, both of the modified nucleotides gave rise to properly sized products as well. The modified dATP’s, however, were found to be very poor substrates. Only two of them were incorporated by Sequenase V2.0. After establishing conditions under which the modified nucleotides could be incorporated, the phosphoramidite of the guanidinium-modified nucleotide was used for the solid phase synthesis of oligonucleotides, and the phenol-modified nucleotide was used in an in vitro selection. Oligonucleotides containing the guanidinium groups were found to exhibit enhanced duplex stability. The guanidinium-modified nucleoside phosphoramidite was also used to synthesize variants of the divalent metal cation-dependent DNAzyme, 10-23. Variants containing guanidinium groups in the substrate binding regions were found to display reduced rates of RNA cleavage. Using the phenol-modified dUTP, an in vitro selection process gave rise to DNAzyme STA17, isolated from the eleventh generation, that could catalyze self-cleavage in the presence of divalent metal cations such as Mg⁺², Zn⁺² and Mn⁺². This DNAzyme was found to be inhibited by Hg⁺².
title: Методика измерения для определения показателей продуктов с помощью измерительных ячеек
Creators: name: Бегунов, А.А.
name: Ахмедов, Б.М.
name: Ибрагимов, Р.А.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2019

description: Рассмотрена методика измерений с помощью измерительных ячеек для количественного и качественного определения показателей продуктов. Про анализировано применение сорбционно-гравиметрического метода измерений для определения содержания компонентов газовых сред. Описан анализа пример воспроизводимости результатов измерений плотности газа, а также изложена методика измерений массы сорбтива и рассмотрены возможные погрешности этой методики.
title: Gendering the field: Pauline Boty and the predicament of the woman artist in the British pop art movement
Creators: name: Tate, S
Publisher: name: Bath Spa University
Year: 2004

description: This thesis explores the predicament of the woman Pop artist, focussing on British Pop Art and taking as its case study Pauline Boty (1938-66). It considers why so few women artists were involved with the movement, the nature of the contribution they might make and the reasons for their subsequent marginalisation and exclusion from the histories. It then pursues the art historical and theoretical implications of the resulting findings. To achieve these ends a considerable body of completely new empirical evidence is presented. A detailed statistical and discursive analysis of contemporary records (for example convocation lists and other documents from the Royal College of Art and Young Contemporaries exhibition catalogues) exposes the deep gender bias of the institutional and discursive field in which British Pop operated. The very difficult predicament of the woman artist (statistically more extreme than had been anticipated) is revealed: difficulties to which mainstream histories of Pop have remained oblivious. Pauline Boty's life and work , on which nothing had been published, are interrogated through a very wide range of primary evidence : numerous interviews with friends, colleagues, lovers, family members and others, private letters and photographs, media material and other documentation. With the help of an Arts Council grant her oeuvre, much of which had been dispersed and/or lost, was re-assembled, archived and exhibited and is, collectively, available for the first time in these pages. Through this evidence the experience and expression of a female subjectivity within the genre of Pop is brought to light. Boty's discursive absence over the last thirty years and recent re-appearance as an object of discourse are then observed and analysed. Relatively recent discursive shifts have made it possible to 'see' the work of the woman Pop artist in a way that had previously been difficult if not impossible. The cumulative findings of this thesis, informed by postmodern and feminist theory, led to a questioning of feminist and mainstream narratives. The thesis arrives at proposals for a revisionist view of both the Pop Art Movement and of feminist practice.
Supplementaryfile2_.docx
Creators: name: Ajumobi, Olufemi
Publisher: name: figshare
Year: 2021
Subjects: subject: 110305 Emergency Medicine
subject: FOS: Clinical medicine

description: · Method_Supplement_S1 This comprises the keywords for the queries and variables in the field of the dataset for the chart review for filters 1 - 3. · Method_Supplement_S2 This depicts the flowchart for case definition. · Method_Supplement_S3 This depicts Random Forest modelling algorithm.
Complex Faraday depth structure of Active Galactic Nuclei as revealed by broadband radio polarimetry
Creators: name: O'Sullivan, S. P.
name: Brown, S.
name: Robishaw, T.
name: Schnitzeler, D. H. F. M.
name: McClure-Griffiths, N. M.
name: Feain, I. J.
name: Taylor, A. R.
name: Gaensler, B. M.
name: Landecker, T. L.
name: Harvey-Smith, L.
name: Carretti, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a detailed study of the Faraday depth structure of four bright (> 1 Jy), strongly polarized, unresolved, radio-loud quasars. The Australia Telescope Compact Array (ATCA) was used to observe these sources with 2 GHz of instantaneous bandwidth from 1.1 to 3.1 GHz. This allowed us to spectrally resolve the polarization structure of spatially unresolved radio sources, and by fitting various Faraday rotation models to the data, we conclusively demonstrate that two of the sources cannot be described by a simple rotation measure (RM) component modified by depolarization from a foreground Faraday screen. Our results have important implications for using background extragalactic radio sources as probes of the Galactic and intergalactic magneto-ionic media as we show how RM estimations from narrow-bandwidth observations can give erroneous results in the presence of multiple interfering Faraday components. We postulate that the additional RM components arise from polarized structure in the compact inner regions of the radio source itself and not from polarized emission from Galactic or intergalactic foreground regions. We further suggest that this may contribute significantly to any RM time-variability seen in RM studies on these angular scales. Follow-up, high-sensitivity VLBI observations of these sources will directly test our predictions.
description: Accepted for publication in MNRAS. 19 pages, 15 figures, 4 tables
Comparing Large-Scale Privacy and Security Notifications
Creators: name: Utz, Christine
name: Michels, Matthias
name: Degeling, Martin
name: Marnau, Ninja
name: Stock, Ben
Publisher: name: CISPA
Year: 2023

description: Over the last decade, web security research has used notification campaigns as a tool to help web operators fix security problems or stop infrastructure abuse. First attempts at applying this approach to privacy issues focused on single services or vendors. Hence, little is known if notifications can also raise awareness and encourage remediation of more complex, vendor-independent violations of privacy legislation at scale, such as informed consent to cookie usage under the EU's ePrivacy Directive or the General Data Protection Regulation's requirement for a privacy policy. It is also unclear how privacy notifications perform and are perceived compared to those about security vulnerabilities. To fill this research gap, we conduct a large-scale, automated email notification study with more than 115K websites we notify about lack of a privacy policy, use of third-party cookies without or before informed consent, and input forms for personal data that do not use HTTPS. We investigate the impact of warnings about fines and compare the results with security notifications to more than 40K domains about openly accessible Git repositories. Based on our measurements and interactions with operators through email and a survey, we find that notifications about privacy issues are not as well received as security notifications. They result in lower fix rates, less incentive to take immediate action, and more negative feedback. Specific reasons include a lack of awareness and knowledge of privacy laws' applicability, difficulties to pinpoint the problem, and limited intrinsic motivation.
Heavy quark density in N=4 SYM: from hedgehog to Lifshitz spacetimes
Creators: name: Kumar, S. Prem
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the effect of an order N^2 density of heavy quarks in strongly coupled N=4 SUSY Yang-Mills theory in the large N limit. This is achieved in the type IIB supergravity dual by introducing a uniformly smeared density of macroscopic string sources stretching to the boundary of AdS_5 x S^5. The backreacted system exhibits a flow from an AdS_5 "hedgehog" geometry to a scaling Lifshitz-like solution Lif_5 x S^5 with dynamical critical exponent z=7, wherein the scaling symmetry is broken by a logarithmic running dilaton. We find an exact black brane solution within the scaling regime which describes the low temperature thermodynamics of the system.
description: 20 pages, 2 figures, references added
B's with Direct Decays: Tevatron and LHC Discovery Prospects in the b\bar{b}+MET Channel
Creators: name: Alwall, Johan
name: Feng, Jonathan L.
name: Kumar, Jason
name: Su, Shufang
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We explore the discovery prospects for B'\bar{B}' pair production followed by direct decays B'->bX, where B' is a new quark and X is a long-lived neutral particle. We develop optimized cuts in the (m_B', m_X) plane and show that the 7 TeV LHC with an integrated luminosity of 1 (10) fb^-1 may exclude masses up to m_B' ~ 620 (800) GeV, completely covering the mass range allowed for new quarks that get mass from electroweak symmetry breaking. This analysis is applicable to other models with b\bar{b}+MET signals, including supersymmetric models with bottom squarks decaying directly to neutralinos, and models with exotic quarks decaying directly to GeV-scale dark matter. To accommodate these and other interpretations, we also present model-independent results for the b\bar{b}+MET cross section required for exclusion and discovery.
description: 18 pages; v2: published version
title: Энергетически эффективный метод разделения смеси «твердое тело-твердое тело»
Creators: name: Абдуллаев, А.Ш.
name: Абдурахимова, А.У.
name: Абдуллаева, С.Ш.
name: Нурмухамедов, Х.С.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2019

description: Показаны особенности применения псевдоожиженного слоя в гидроклассификаторе для разделения смеси “мякоть – кожица”. Приведены результаты изучения степени разделения R мякоти от кожицы при трехфазном псевдоожижении в зависимости числа Рейнольдса Re при соотношении газовой и жидкой фаз Г:Ж=0,15:1 и Г:Ж=0,25:1. Исследованиями установлено, что при эквивалентном диаметре кожицы корне- и клубнеплодов dэ=2-8 мм, при соотношении газовой и жидкой фаз Г:Ж=0,15:1, а также при живом сечении распределительной решетки =0,5 полное разделение смеси составит при скорости газожидкостного потока Re=700-1200 соответственно. При увеличение доли газовой фазы до Г:Ж=0,25:1 интенсификация процесса разделения возрастает до 20%.
title: A critical analysis of the factors influencing antenatal and postnatal self-reported diets of primagravid women
Creators: name: Tuffery, E
Publisher: name: Bath Spa University
Year: 2004

description: The study examines the perceptions of diet and nutrition and measures the nutritional consumption of primagravid women, during pregnancy and post partum. The aim was to establish the nutritional knowledge and nutritional status of such women, based on self-reported diet diaries. Quantitative and qualitative data were collected from a sample of 39 primagravid women recruited from five general medical practices in Wiltshire, England, United Kingdom. Thirty-nine participants took part in the study during the first trimester of pregnancy and 37 continued in the study to six months post partum, keeping a self-reported diet diary for one week at the end of the first trimester, third trimester and six months post partum. At the same points in time, participants completed a Likert scale questionnaire based on the Theory of Planned Behaviour (Ajzen, 1985) that measured attitudes and intentions towards eating habits during pregnancy. Interviewer administered questionnaires were conducted at each time point to assess the participants socio-economic status and nutritional knowledge. The self-reported diet diaries were analysed using Dietplan software that measures nutritional intake based on Recommended Daily Allowances (RDAs). Results indicate that some women had under-consumption of a number of nutrients pre and post partum while some participants over-consumed a number of nutrients during their pregnancy. There were gaps in the nutritional knowledge of some participants, suggesting that revised nutritional educational policies should be introduced. Time was the major determinant of poor nutrition post partum, suggesting a need for time management and educational interventions for primagravid women. Small hospitals with Baby Friendly Accreditation were rated more positively than large general hospitals. These results suggest a need for larger hospitals to work towards Baby Friendly Accreditation. The study ascertained that there is a scarcity of research into the effects of over-consumption of nutrients during pregnancy and a recommendation is made to address this issue. A further recommendation is that modifications should be made to the Theory of Planned Behaviour (Ajzen, 1985) on the basis of the findings of this study which suggest that the model should be looked at in reverse, as the influence of a number of factors reduced over time. A modified model of the Theory of Planned Behaviour (Ajzen, 1985) is proposed.
Studies of water and solvents at liquid/solid interfaces by sum frequency generation vibrational spectroscopy
Creators: name: Yang, Zheng
Publisher: name: University of British Columbia
Year: 2011

description: This dissertation studies the surface chemistry of water and organic solvents at liquid/mineral interfaces using IR-visible sum frequency generation (SFG) vibrational spectroscopy. The solvents studied include pentane, heptane, tetradecane and toluene, and the minerals include silica and mica. These liquid/mineral interfaces are relevant for environmental and industrial processes, such as ice nucleation and oilsands extraction. Structures of water at water/silica interfaces were studied in the presence of alkali chloride in solution. Perturbations of the interfacial water structures were observed with NaCl concentrations as low as 1x10⁻⁴ M. Different alkali cations produce different magnitudes of perturbation, with K⁺ > Li⁺ > Na⁺. This order was explained by the different effective ionic radii and electrostatic interactions between the cations and silica surfaces. The adsorption of water at solvent/silica interfaces was studied at room temperature. A water layer without detectable free OHs was discovered at toluene/silica interface. This water layer showed resistance against further adsorption of water molecules and was very stable at room temperature. However, similar structure of water was not observed at heptane/silica interfaces. Water structures on mica were studied with atmospherically relevant sulphuric acid concentrations. Experimental data showed that ordered water structures on mica completely disappeared when the concentration of sulfuric acid reached 5 mol/L. The results partially explain why sulfuric acid coatings influence the ice nucleation properties of mineral dust particles in the atmosphere. The competitive adsorption of toluene and n-alkane at solvent/silica interfaces was studied. The surface coverage of toluene for toluene-pentane, toluene-heptane, and toluene-tetradecane mixtures were measured over the complete mole fraction range from 0 to 1. Overall, toluene competes favorably on silica, but the molar adsorption free energy of alkanes increases as the chain length increases. Finally, experiments were conducted to study the effect of interfacial water on bitumen liberation from mineral surfaces in water. The bitumen liberation rate increases when the water content between bitumen and the mineral increases. The liberation also highly depends on the surface properties of minerals. At the same water content, the rate of bitumen displacement on different mineral surfaces is: freshly cleaved mica > rinsed mica > silica.
title: Нательные кресты XVII–XVIII вв. из раскопок Берёзовского городища
title: Baptismal Crosses of the 17th–18th Centuries in the Excavations in Beryozovskoe Gorodishche
Creators: name: Столбов, Владимир Игоревич
name: Володеева, Юлия Сергеевна
Publisher: name: Издательский центр СурГУ
Year: 2020

description: В статье дается описание нательных крестов, найденных во время раскопок Берёзовского городища в 2019 г. Комплексный анализ находок позволил дать им подробную типологическую и хронологическую характеристику, выявить аналогии.
description: The article examines the baptismal crosses that were found in the excavations of Beryozovskoe gorodishche (a town) in 2019. Their comprehensive analysis allowed us to give detailed typological and chronological characteristics of certain types of crosses and identify their analogies.
Anomaly-based Filtering of Application-Layer DDoS Against DNS Authoritatives
Creators: name: Bushart, Jonas
name: Rossow, Christian
Publisher: name: CISPA
Year: 2023

description: Authoritative DNS infrastructures are at the core of the Internet ecosystem. But how resilient are typical authoritative DNS name servers against application-layer Denial-of-Service attacks? In this paper, with the help of a large country-code TLD operator, we assess the expected attack load and DoS countermeasures. We find that standard botnets or even single-homed attackers can overload the computational resources of authoritative name servers—even if redundancy such as anycast is in place. To prevent the resulting devastating DNS outages, we assess how effective upstream filters can be as a last resort. We propose an anomaly detection defense that allows both, well-behaving high-volume DNS resolvers as well as low-volume clients to continue name lookups—while blocking most of the attack traffic. Upstream ISPs or IXPs can deploy our scheme and drop attack traffic to reasonable query loads at or below 100k queries per second at a false positive rate of 1.2 % to 5.7 % (median 2.4 %).
Nonlinear evolution equations for describing waves in bubbly liquids with viscosity and heat transfer consideration
Creators: name: Kudryashov, Nikolay A.
name: Sinelshchikov, Dmitry I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Nonlinear evolution equations of the fourth order and its partial cases are derived for describing nonlinear pressure waves in a mixture liquid and gas bubbles. Influence of viscosity and heat transfer is taken into account. Exact solutions of nonlinear evolution equation of the fourth order are found by means of the simplest equation method. Properties of nonlinear waves in a liquid with gas bubbles are discussed.
Braives Gallo-Romain II
Creators: name: Grünewald, Mathilde
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2020

description: Rezension zu: Braives Gallo-Romain II. Le Quartier des Potiers. Publications d’histoire de Part et d’archéologie de l’université Catholique de Louvain - XXXVII, publiées sous la direction de Raymond Brulet. Institut Supérieur d’archéologie et d’Histoire de l’art, Louvain-la- Neuve 1983. 216 Seiten, 65 Abbildungen, 9 Tabellen und 4 Faltpläne
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 63 Nr. 2 (1985)
Electromagnetic Oscillations in a Driven Nonlinear Resonator: A New Description of Complex Nonlinear Dynamics
Creators: name: Petrov, E. Yu.
name: Kudrin, A. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Many intriguing properties of driven nonlinear resonators, including the appearance of chaos, are very important for understanding the universal features of nonlinear dynamical systems and can have great practical significance. We consider a cylindrical cavity resonator driven by an alternating voltage and filled with a nonlinear nondispersive medium. It is assumed that the medium lacks a center of inversion and the dependence of the electric displacement on the electric field can be approximated by an exponential function. We show that the Maxwell equations are integrated exactly in this case and the field components in the cavity are represented in terms of implicit functions of special form. The driven electromagnetic oscillations in the cavity are found to display very interesting temporal behavior and their Fourier spectra contain singular continuous components. To the best of our knowledge, this is the first demonstration of the existence of a singular continuous (fractal) spectrum in an exactly integrable system.
description: 5 pages, 3 figures
L’Art celtique de la période d’expansion
Creators: name: Müller, Felix
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2020

description: Rezension zu: L’Art celtique de la période d’expansion. IVe e IIIe siècles avant notre ère. Actes du colloque organisè sous les auspices du Collège de France et de la IVe Section de l’Ecole pratique des Hautes Études, du 26 au 28 septembre 1978, au Collège de France à Paris. Édités par Paul-Marie Duval et Venceslas Kruta. Hautes Études du Monde Gréco-Romain 13. Centre de Recherches d’Histoire et de Philologie de la IVe Section de l’Ecole pratique des Hautes Études III. Librairie Droz, Genf 1982. VIII, 268 Seiten und zahlreiche Abbildungen im Text
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 62 Nr. 2 (1984)
title: Mid to late holocene changes in the environment, Sedgemoor Valley, Somerset Levels, UK
Creators: name: Eales, C
Publisher: name: Bath Spa University
Year: 2005

description: The mid to Late Holocene environmental development of the Sedgemoor Valley, Somerset Levels is examined using a multidisciplinary approach involving lithostratigraphy, biostratigraphy and radiocarbon dating. Three sites along a transect of the valley and one in the Bristol Channel are studied producing a temporal and spatial model of its palaeoenvironmental development. A common red clay is seen in all three sites which has been interpreted as a palaeosol and its surface varies between -1 .33 m 00 and 6.2 m 00 mantling the bedrock topography. Lithostratigraphic evidence indicates the red palaeosol was inundated by mid Holocene sea level rise as it is overlain by a blue clay that contains marine foraminifera. The surface of this blue marine clay varies in altitude between -1 . 1 4 m 00 and 5.51 m 00, above which a peat deposit occurs demonstrating a marine regression and a change to freshwater conditions. Radiocarbon analysis has been carried out on five peat samples immediately above the clay-peat contact to date the marine regression. They vary from between 6920 and 6450 cal. yrs BP at a altitude of -0.87 m 00 and 4795 and 4 1 70 cal . yrs.BP at 4.71 m 00. This study supports previous research suggesting that the peat began to form at a low altitude and subsequently extended vertically and laterally to cover the exhumed clay surface. The peat deposit initially contains Phragmities and then becomes either detrital or turfa in nature up core. The detrital peat contains freshwater molluscs indicating that large lake-like fringing waterbodies persisted in the valley for much of the late Holocene. Later the influence of humans is seen in the lithostratigraphy as drainage works become evident, marked by a change from organic to more minerogenic deposition. A saltmarsh at Stert is studied to examine the current intertidal area, and to calibrate and partially fill the gap in the stratigraphical record between the end of the peat samples in the valley and today.
Hitting sbottom in natural SUSY
Creators: name: Lee, Hyun Min
name: Sanz, Veronica
name: Trott, Michael
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We compare the experimental prospects of direct stop and sbottom pair production searches at the LHC. Such searches for stops are of great interest as they directly probe for states that are motivated by the SUSY solution to the hierarchy problem of the Higgs mass parameter - leading to a "Natural" SUSY spectrum. Noting that sbottom searches are less experimentally challenging and scale up in reach directly with the improvement on b-tagging algorithms, we discuss the interplay of small TeV scale custodial symmetry violation with sbottom direct pair production searches as a path to obtaining strong sub-TeV constraints on stops in a natural SUSY scenario. We argue that if a weak scale natural SUSY spectrum does not exist within the reach of LHC, then hopes for such a spectrum for large regions of parameter space should sbottom out. Conversely, the same arguments make clear that a discovery of such a spectrum is likely to proceed in a sbottom up manner.
description: 18 pages, 8 figures,v2 refs added, JHEP version
White-box Concealment Attacks Against Anomaly Detectors for Cyber-Physical Systems
Creators: name: Erba, Alessandro
name: Tippenhauer, Nils Ole
Publisher: name: CISPA
Year: 2023

description: Anomaly detection for cyber-physical systems is an effective method to detect ongoing process anomalies caused by an attacker. Recently, a number of anomaly detection techniques were proposed (e.g., ML based, invariant rule based, control theoretical). Little is known about the resilience of those anomaly detectors against attackers that conceal their attacks to evade detection. In particular, their resilience against white-box concealment attacks has so far only been investigated for the subset of neural network-based detectors. In this work, we demonstrate for the first time that white-box concealment attacks can also be applied to detectors that are not based on neural network solutions. In order to achieve this, we propose a generic white-box attack that evades anomaly detectors and can be adapted even if the target detection technique does not optimize a loss function. We design and implement a framework to perform our attacks, and test it on several detectors from related work. Our results show that it is possible to completely evade a wide range of detectors (based on diverse detection techniques) while reducing the number of samples that need to be manipulated (compared to prior black-box concealment attacks).
Theoretical and experimental studies in electron paramagnetic resonance: an investigation into the design and construction of 34GHz and 55GHz EPR spectrometers and their use in the EPR study of the ferric ion in myoglobin, myoglobin fluoride and hemoglobin
Creators: name: Gray, A. Laurence
Publisher: name: University of Calgary
Year: 1971
Subjects: subject: Electron paramagnetic resonance
subject: Ions - Spectra

description: Bibliography: p. 132-137.
Structure and behavior of four-helix bundle cavitein systems
Creators: name: Freeman, Jon Oliver
Publisher: name: University of British Columbia
Year: 2011

description: This thesis will investigate the sequence to structure relationship of protein folding through the use of template assembled synthetic proteins (TASPs). A cavitand template will be used to bring together four de novo designed peptides to form a four-helix bundled TASP, referred to as a cavitein. The first chapter will detail the rationale behind de novo protein design and use of TASPs to study protein folding. Chapter 1 will also review past and current work relating to the design and structural characterization of synthetic de novo proteins. Chapter 2 will investigate the context dependency of leucine residues within the hydrophobic core of a cavitein. Single leu to ala substitutions resulted in similar destabilization of the cavitein. However, replacing the middle leucine compromised the structure and stability of the cavitein. It was concluded that the middle leucine acted as a linchpin within the peptide sequence. Chapter 3 will examine the first reported crystallization of a TASP. The crystal structure is revealed as a dimer. The cavitein (Q4) was thought to be monomeric. The chapter will compare the solution structures of both the parent and Q4 cavitein. It was found that both parent and Q4 have a weak dimer association at relatively high concentrations. Chapter 4 will discuss glutamine variants used to probe the tolerance of dimer crystallization with respect to sequence variation. The chapter uncovers a key lattice contact for cavitein dimer lattice nucleation and stabilization. Furthermore, in an attempt to control the oligomeric state of caviteins, Chapter 4 will also discuss histidine metal binding caviteins and disulfide caviteins. A cavitein designed to favor a dimer via histidine metal binding was synthesized and crystallized revealing a potential metal binding center. Caviteins designed to favor a monomer conformation were also designed involving either histidine metal binding or disulfide bridges. Both methods proved successful in their monomeric design as shown by solution characterization. Chapter 5 will conclude and summarize the work throughout this thesis. The chapter will also suggest future projects expanding on studies within this thesis as well as suggest other projects pertaining to cavitein research.