cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multi-stage ytterbium fiber-amplifier seeded by a gain-switched laser diode
Creators: name: Ryser, Manuel
name: Pilz, Sönke
name: Burn, Andreas
name: Romano, Valerio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrated all-fiber amplification of 11 ps pulses from a gain-switched laser diode at 1064 nm. The diode was driven at a repetition rate of 40 MHz and delivered 13 $μ$W of fiber-coupled average output power. For the low output pulse energy of 325 fJ we have designed a multi-stage core pumped pre-amplifier in order to keep the contribution of undesired amplified spontaneous emission as low as possible. By using a novel time-domain approach for determining the power spectral density ratio (PSD) of signal to noise, we identified the optimal working point for our pre-amplifier. After the pre-amplifier we reduced the 40 MHz repetition rate to 1 MHz using a fiber coupled pulse-picker. The final amplification was done with a cladding pumped Yb-doped large mode area fiber and a subsequent Yb-doped rod-type fiber. With our setup we reached a total gain of 73 dB, resulting in pulse energies of >5.6 $μ$J and peak powers of >0.5 MW. The average PSD-ratio of signal to noise we determined to be 18/1 at the output of the final amplification stage.
description: 4 pages, 6 figures. appears in ALT Proceedings (2012)
Aphelinus Dalman 1820
Creators: name: Swezey, O. H.
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Aphelinidae
Aphelinus

description: 38. Aphelinus? new species. Inarajan, May 14, ex Aphis gossypii Glover on taro, Swezey; Piti, May 28, ex Aphis gossypii Glover, Usinger. One slide mount, retained in U. S. National Museum. Apparently near flavipes Kurdjumov (Rev. Russe d'Ent. 13: 270, 1913).
description: Published as part of Swezey, O. H., 1946, Notes On Some Guam Chalcidoidea, pp. 211-219 in Insects of Guam II, Honolulu, Hawaii :Bernice P. Bishop Museum on page 216, DOI: 10.5281/zenodo.5173516
Atomistic simulation of the FEBID-driven growth of iron-based nanostructures
Creators: name: Prosvetov, Alexey
name: Verkhovtsev, Alexey V.
name: Sushko, Gennady
name: Solov'yov, Andrey V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The growth of iron-containing nanostructures in the process of focused electron beam-induced deposition (FEBID) of Fe(CO)$_5$ is studied by means of atomistic irradiation-driven molecular dynamics (IDMD) simulations. The geometrical characteristics (lateral size, height and volume), morphology and metal content of the grown nanostructures are analyzed at different irradiation and precursor replenishment conditions corresponding to the electron-limited and precursor-limited regimes (ELR & PLR) of FEBID. A significant variation of the deposit's morphology and elemental composition is observed with increasing the electron current from 1 to 4 nA. At low beam current (1 nA) corresponding to the ELR and a low degree of Fe(CO)$_5$ fragmentation, the nanogranular structures are formed which consist of isolated iron clusters embedded into an organic matrix. In this regime, metal clusters do not coalesce with increasing electron fluence, resulting in relatively low metal content of the nanostructures. A higher beam current of 4 nA corresponding to the PLR facilitates the precursor fragmentation and the coalescence of metal clusters into a dendrite-like structure with the size corresponding to the primary electron beam. The IDMD simulations enable atomistic-level predictions on the nanoscopic characterization of the initial phase of nanostructure growth in the FEBID process. These predictions can be verified in high-resolution transmission electron microscopy experiments.
description: 13 pages, 7 figures
On the existence of eigenvalues of a boundary value problem with transmitting condition of the integral form for parabolic-hyperbolic equation
Creators: name: Berdyshev, Abdumauvlen S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35M10

description: In the paper, we investigate a local boundary value problem with transmitting condition of the integral form for mixed parabolic-hyperbolic equation with non-characteristic line of type changing. Two theorems on strong solvability and the existence of eigenvalues of the considered problem have been proved.
description: 13 pages
Mitochondrial metabolic manipulation by SARS-CoV-2 in peripheral blood mononuclear cells of COVID-19 patients
Creators: name: Ajaz, Saima
name: Mark, J. W. McPhail
name: Keshav K. Singh
name: Mujib, Salma
name: Trovato, Francesca M
name: Napoli, Salvatore
name: Kosh Agarwal
Publisher: name: figshare
Year: 2020
Subjects: subject: 111601 Cell Physiology
subject: FOS: Basic medicine

description: The COVID-19 pandemic has been the primary global health issue since its outbreak in December 2019. Patients with metabolic syndrome suffer from severe complications and a higher mortality rate due to SARS-CoV-2 infection. We recently proposed that SARS-CoV-2 can hijack host mitochondrial function and manipulate metabolic pathways for their own advantage. The aim of the current study was to investigate functional mitochondrial changes in live peripheral blood mononuclear cells (PBMCs) from COVID-19 patients, decipher the pathways of substrate utilization in these cells and corresponding changes in the inflammatory pathways. We demonstrate mitochondrial dysfunction, metabolic alterations with an increase in glycolysis and high levels of mitokine in PBMCs from COVID-19 patients. Interestingly, we found that levels of FGF-21 mitokine correlate with COVID-19 disease severity and mortality. These data suggest that COVID-19 patients have compromised mitochondrial function and an energy deficit which is compensated by a metabolic switch to glycolysis. This metabolic manipulation by SARS-CoV-2 triggers an enhanced inflammatory response which contributes to severity of symptoms in COVID-19. Targeting mitochondrial metabolic pathway(s) can help define novel strategies for COVID-19.
Model Based Control of Soft Robots: A Survey of the State of the Art and Open Challenges
Creators: name: Della Santina, Cosimo
name: Duriez, Christian
name: Rus, Daniela
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Robotics (cs.RO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Continuum soft robots are mechanical systems entirely made of continuously deformable elements. This design solution aims to bring robots closer to invertebrate animals and soft appendices of vertebrate animals (e.g., an elephant's trunk, a monkey's tail). This work aims to introduce the control theorist perspective to this novel development in robotics. We aim to remove the barriers to entry into this field by presenting existing results and future challenges using a unified language and within a coherent framework. Indeed, the main difficulty in entering this field is the wide variability of terminology and scientific backgrounds, making it quite hard to acquire a comprehensive view on the topic. Another limiting factor is that it is not obvious where to draw a clear line between the limitations imposed by the technology not being mature yet and the challenges intrinsic to this class of robots. In this work, we argue that the intrinsic effects are the continuum or multi-body dynamics, the presence of a non-negligible elastic potential field, and the variability in sensing and actuation strategies.
description: 69 pages, 13 figures
Пластическая дисторсия - фундаментальный механизм в нелинейной мезомеханике пластической деформации и разрушения твердых тел
Creators: name: Панин Виктор Евгеньевич
name: Егорушкин Валерий Ефимович
name: Панин Алексей Викторович
name: Чернявский Александр Григорьевич
Publisher: name: Физическая мезомеханика
Year: 2016
Subjects: ПЛАСТИЧЕСКАЯ ДИСТОРСИЯ
PLASTIC DISTORTION
КРИВИЗНА КРИСТАЛЛИЧЕСКОЙ РЕШЕТКИ
LATTICE CURVATURE
БИФУРКАЦИОННЫЕ МЕЖУЗЕЛЬНЫЕ СТРУКТУРНЫЕ СОСТОЯНИЯ
BIFURCATIONAL INTERSTITIAL STRUCTURAL STATES
ГЕНЕРАЦИЯ И ПОДВИЖНОСТЬ ДИСЛОКАЦИЙ
GENERATION AND MOBILITY OF DISLOCATIONS
СВЕРХПЛАСТИЧНОСТЬ
SUPERPLASTICITY
РАЗРУШЕНИЕ
FRACTURE

description: В деформируемом твердом теле следует рассматривать две самосогласованные функциональные подсистемы: 3D кристаллическую и 2D планарную (поверхностные слои и все внутренние границы раздела). Первичное пластическое течение в виде нелинейных волн структурных трансформаций развивается в планарной подсистеме, которая не имеет трансляционной инвариантности и является термодинамически неравновесной. Планарные нелинейные потоки структурных трансформаций наномасштабного уровня формируют кривизну кристаллической структуры в SD-подсистеме, в которой возникают бифуркационные межузельные структурные состояния. Они обусловливают развитие принципиально нового эффекта пластической дисторсии при пластической деформации и разрушении твердых тел, которая не учитывается в механике сплошной среды и механике разрушения. Приводится обоснование ведущей роли пластической дисторсии в генерации и кристаллографическом скольжении дислокаций, в пластичности, сверхпластическом течении и локализации пластической деформации, в развитии механизмов разрушения твердых тел.
Efficient Extensional Binary Tries
Creators: name: Appel, Andrew W
name: Leroy, Xavier
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Lookup tables (finite maps) are a ubiquitous data structure. In pure functional languages they are best represented using trees instead of hash tables. In pure functional languages within constructive logic, without a primitive integer type, they are well represented using binary tries instead of search trees. In this work, we introduce canonical binary tries, an improved binary-trie data structure that enjoys a natural extensionality property, quite useful in proofs, and supports sparseness more efficiently. We provide full proofs of correctness in Coq. We provide microbenchmark measurements of canonical binary tries versus several other data structures for finite maps, in a variety of application contexts; as well as measurement of canonical versus original tries in two big, real systems. The application context of data structures contained in theorem statements imposes unusual requirements for which canonical tries are particularly well suited.
Coccophagus orientalis Howard
Creators: name: Swezey, O. H.
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Aphelinidae
Coccophagus
Coccophagus orientalis

description: 3.9. Coccophagus orientalis Howard, U. S. Nat. Mus., Proc. 18: 633, 1896. Listed by Fullaway in 1913.
description: Published as part of Swezey, O. H., 1946, Notes On Some Guam Chalcidoidea, pp. 211-219 in Insects of Guam II, Honolulu, Hawaii :Bernice P. Bishop Museum on page 216, DOI: 10.5281/zenodo.5173516
Effects of electron irradiation on resistivity and London penetration depth of Ba$_{1-x}$K$_x$Fe$_2$As$_2$ ($x \leq$ 0.34) iron - pnictide superconductor
Creators: name: Cho, K.
name: Konczykowski, M.
name: Murphy, J.
name: Kim, H.
name: Tanatar, M. A.
name: Straszheim, W. E.
name: Shen, B.
name: Wen, H. H.
name: Prozorov, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Irradiation with 2.5 MeV electrons at doses up to 5.2 $\times$10$^{19}$ electrons/cm$^2$ was used to introduce point-like defects in single crystals of Ba$_{1-x}$K$_x$Fe$_2$As$_2$ with $x=$ 0.19 ($T_c=$ 14 K), $x=$ 0.26 ($T_c=$ 32 K) and 0.34 ($T_c=$ 39 K) to study the superconducting gap structure by probing the effect of non-magnetic scattering on electrical resistivity, $ρ(T)$, and London penetration depth, $ λ(T)$. For all compositions, the irradiation suppressed the superconducting transition temperature, $T_c$ and increased resistivity. The low - temperature behavior of $λ(T)$ is best described by the power - law function, $Δλ(T) = A(T/T_c)^n$. While substantial suppression of $T_c$ supports $s_{\pm}$ pairing mechanism, in samples close to the optimal doping, $x=$ 0.26 and 0.34, the exponent $n$ remained high ($n \geq 3$) indicating robust full superconducting gaps. For the $x=$ 0.19 composition, exhibiting coexistence of superconductivity and long - range magnetism, the suppression of $T_c$ was much more rapid and the exponent $n$ decreased toward dirty limit of $n$ = 2. In this sample, the irradiation also suppressed the temperature of structural/magnetic transition, $T_{sm}$, from 103 K to 98 K consistent with the itinerant nature of the magnetic order. Our results suggest that underdoped compositions, especially in the coexisting regime are most susceptible to non-magnetic scattering and imply that in multi-band Ba$_{1-x}$K$_x$Fe$_2$As$_2$ superconductors, the ratio of the inter-band to intra-band pairing strength, and associated gap anisotropy, increases upon the departure from the optimal doping.
Alle, die die wahre Kirche suchen, mögen das Verlangen des Herzens Jesu nach der Einheit der Seinen tiefer erkennen und dadurch zur Einheit geführt werden
Publisher: name: Herder Korrespondenz
Year: 1970

description: Herder Korrespondenz, Bd. 14 Nr. 3 (1959): Herder Korrespondenz, Band 14, Heft 3
The Inorganic Fertilizer Price Surge in 2021: Key Drivers and Policy Options
Creators: name: Nyondo, Christone
name: Nyirenda, Zephania B.
name: Burke, William J.
name: Muyanga, Milu
name: Nyondo, Christone
name: Nyirenda, Zephania B.
name: Burke, William J.
name: Muyanga, Milu
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Food Security and Poverty
subject: International Development
subject: Political Economy
subject: Public Economics
subject: Fertilizer price formation
subject: Food prices
subject: Price margins
subject: Malawi

description: • August 2021 retail prices for common varieties of fertilizer have increased 60-75% versus one year earlier. • The upsurge in fertilizer prices hinders Malawiʼs ability to achieve the national goal of increasing fertilizer applications, most notably through the Agricultural Input Program (AIP). • The main drivers of domestic fertilizer price increases come from the global market ‒ 90% of the increases in domestic fertilizer prices are attributable to increases in global prices for fertilizer and fuel, and a weakening of the Malawi Kwacha. • Domestic margin increases explain the remaining 10%, though this is also driven by higher transport costs associated with higher global prices for oil and fuel. • Increased global fertilizer demand (and thus prices) is driven primarily by increased food prices, stemming partly from many countries rebounding from Covid-19 while global food supplies are lower than usual. • The expansion of agricultural area, good weather in major production regions, and rising input costs are also affecting global fertilizer prices. • The fertilizer price surge is most likely a temporary phenomenon but will not recede before the upcoming agricultural season. • Neither reducing the scope of the AIP (e.g., eliminating seed subsidies) nor circumventing the private sector to obtain fertilizers will reduce costs sufficiently to maintain current fertilizer subsidy levels, and could exacerbate the crisis. • Any near-term response will require making difficult choices about how to distribute the burden of rising prices by either reducing the number of beneficiaries, reducing the value of the subsidy, or increasing the burden on the Treasury. • In the long run, Malawi can reduce its vulnerability to global fertilizer price volatility by investing in infrastructure, improving fertilizer efficiency through research and extension, and identifying alternative strategies for improving Malawian land productivity.
Imperfect bifurcations via topological methods in superlinear indefinite problems
Creators: name: Tellini, Andrea
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34B15, 34C23, 35B30

description: In [5] the structure of the bifurcation diagrams of a class of superlinear indefinite problems with a symmetric weight was ascertained, showing that they consist of a primary branch and secondary loops bifurcating from it. In [4] it has been proved that, when the weight is asymmetric, the bifurcation diagrams are no longer connected since parts of the primary branch and loops of the symmetric case form an arbitrarily high number of isolas. In this work we give a deeper insight on this phenomenon, studying how the secondary bifurcations break as the weight is perturbed from the symmetric situation. Our proofs rely on the approach of [5,4], i.e. on the construction of certain Poincaré maps and the study of how they vary as some of the parameters of the problems change, constructing in this way the bifurcation diagrams.
description: 13 pages, 7 figures
Ultrahigh-sensitivity optical power monitor for Si photonic circuits
Creators: name: Ochiai, Takaya
name: Sumita, Kei
name: Ohno, Shuhei
name: Monfray, Stéphane
name: Boeuf, Frederic
name: Toprasertpong, Kasidit
name: Takagi, Shinichi
name: Takenaka, Mitsuru
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A phototransistor is a promising candidate as an optical power monitor in Si photonic circuits since the internal gain of photocurrent enables high sensitivity. However, state-of-the-art waveguide-coupled phototransistors suffer from a responsivity of lower than $10^3$ A/W, which is insufficient for detecting very low power light. Here, we present a waveguide-coupled phototransistor consisting of an InGaAs ultrathin channel on a Si waveguide working as a gate electrode to increase the responsivity. The Si waveguide gate underneath the InGaAs ultrathin channel enables the effective control of transistor current without optical absorption by the gate metal. As a result, our phototransistor achieved the highest responsivity of approximately $10^6$ A/W among the waveguide-coupled phototransistors, allowing us to detect light of 621 fW propagating in the Si waveguide. The high responsivity and the reasonable response time of approximately 100 $μ$s make our phototransistor promising as an effective optical power monitor in Si photonics circuits.
Role of axion electrodynamics in Weyl metal: Violation of Wiedemann-Franz law
Creators: name: Kim, Ki-Seok
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recently, enhancement of the longitudinal magneto-electrical conductivity (LMEC) has been observed in Bi$_{1-x}$Sb$_{x}$ around $x \sim 3\%$ under $\bm{E} \parallel \bm{B}$ ($\bm{E}$: external electric field and $\bm{B}$: external magnetic field) [Phys. Rev. Lett. {\bf 111}, 246603 (2013)], where an enhancement factor proportional to $B^{2}$ is suggested to result from the $\bm{E} \cdot \bm{B}$ term. In the present study, we show that this $B^{2}$ enhancement is not limited on the LMEC, where both the Seebeck and thermal conductivities in the longitudinal setup ($\bm{E} \parallel \bm{B}$) are predicted to show essentially the same enhancement proportional to $B^{2}$. In particular, the $B^{2}$ enhancement factor of the LMEC turns out to differ from that of the longitudinal thermal conductivity, responsible for breakdown of Wiedemann-Franz (WF) law, which means that anomalous currents flowing through the dissipationless channel differ from each other. Since the breakdown of the WF law appears in spite of the existence of electron quasiparticles, regarded to be a purely topological character (chiral anomaly), the Weyl metallic state cannot be identified with the Landau's Fermi-liquid fixed point. We propose the violation of the WF law as another hallmark of the Weyl metallic phase, which originates from axion electrodynamics.
Amplitude Structure of Optical Vortices Determines Annihilation Dynamics
Creators: name: Andersen, Jasmine M.
name: Voitiv, Andrew A.
name: Ford, Patrick C.
name: Siemens, Mark E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show that annihilation dynamics between oppositely charged optical vortex pairs can be manipulated by the initial size of the vortex cores, consistent with hydrodynamics. When sufficiently close together, vortices with strongly overlapped cores annihilate more quickly than vortices with smaller cores that must wait for diffraction to cause meaningful core overlap. Numerical simulations and experimental measurements for vortices with hyperbolic tangent cores of various initial sizes show that hydrodynamics governs their motion, and reveal distinct phases of vortex recombination; decreasing the core size of an annihilating pair can prevent the annihilation event.
Integrable properties of sigma-models with non-symmetric target spaces
Creators: name: Bykov, Dmitri
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: It is well-known that sigma-models with symmetric target spaces are classically integrable. At the example of the model with target space the flag manifold U(3)/U(1)^3 -- a non-symmetric space -- we show that the introduction of torsion allows to cast the equations of motion in the form of a zero-curvature condition for a one-parametric family of connections, which can be a sign of integrability of the theory. We also elaborate on geometric aspects of the proposed model.
description: 8 pages, 1 figure
Equistrong heavy beam: solving the problem of Galileo Galilei
Creators: name: Cherepanov Genady, P.
Publisher: name: Физическая мезомеханика
Year: 2016
Subjects: РАВНОПРОЧНЫЙ БРУС
КОНСТРУКЦИИ МИНИМАЛЬНОГО ВЕСА
MINIMUM WEIGHT STRUCTURES
ИДЕАЛЬНЫЕ ФОРМЫ ПЛАТОНА
PLATO'S FORMS
СОПРОТИВЛЕНИЕ МАТЕРИАЛОВ
STRENGTH OF MATERIALS
ОПТИМАЛЬНЫЕ ФОРМЫ УПРУГИХ ТЕЛ
OPTIMUM SHAPES OF ELASTIC BODIES
УСТОЙЧИВОСТЬ РАВНОПРОЧНОГО СТЕРЖНЯ ПРИ СЖАТИИ
EQUISTRONG BEAM
BUCKLING OF EQUISTRONG ROD

description: In his main book “Discorsi e Dimostrazioni Matematiche, Intomo a Due Nuove Scienze” published in 1638 by Elsevier in Leyden Galileo Galilei, “the Father” of modern science, put the material science and strength of materials on the first place. He introduced the notions of stress and strength that have been fundamental since then. Moreover, in unison with Plato’s Theory of Forms he found out the perfect shape of a force-bent beam we call today equistrong. This discovery laid the foundation for search of other perfect elastic bodies as a continuation of Galilei’s work. There are no theorems of existence for equistrong bodies so that the quest for them is like a gold-digging. In what follows, the shapes of the following heavy, equistrong beams were found out: a) beam of constant thickness and of variable width, simply supported at both ends, b) beam clamped at one end and loaded at the other end while having either constant thickness and variable width, or constant width and variable thickness, and c) equistrong shape of the profile of aircraft wings accounting for gravity and lift loads. The shape of equistrong rod at buckling under a compressive force is found in the Euler’s problem. Equistrong structures possess minimum weight for given safety factor or maximum safety factor for given weight.
A brief review of three-dimensional effects near crack front
Creators: name: Zhuang, He
name: Kotousov Andrei, G.
name: Filippo, Berto
name: Branco, R.
Publisher: name: Физическая мезомеханика
Year: 2016
Subjects: ОСОБЕННОСТЬ В УГЛОВОЙ ТОЧКЕ (ВЕРШИНЕ)
3D CORNER (VERTEX) SINGULARITY
СВЯЗАННЫЕ МОДЫ
ВЛИЯНИЕ ТОЛЩИНЫ ПЛАСТИНЫ
PLATE THICKNESS EFFECT
КОЭФФИЦИЕНТ ИНТЕНСИВНОСТИ НАПРЯЖЕНИЙ
STRESS INTENSITY FACTOR
РАСПРОСТРАНЕНИЕ УСТАЛОСТНОЙ ТРЕЩИНЫ
FATIGUE CRACK GROWTH
ЛИНЕЙНАЯ МЕХАНИКА УПРУГОГО РАЗРУШЕНИЯ
LINEAR ELASTIC FRACTURE MECHANICS
COUPLED MODES

description: 3D crack problems are area where a further intensive research is required. 3D solutions can shed more light on fracture and fatigue phenomena, provide a more accurate evaluation of strength and fatigue life or justify the application of the classical solutions of plane theories of elasticity. These, in fact, are approximate theories even when the governing equations of these theories are solved exactly. The current paper aims to provide a brief summary of the latest investigations of 3D effects associated with crack geometries and brittle fracture. In particular, we present an overview of the coupled fracture modes and 3D vertex singularities, which are currently largely ignored in experimental and theoretical studies. We also describe a recently developed experimental method for the evaluation of the stress intensity factors. This review is concerned with the situation generally described in the literature as small scale plasticity. Large plastic deformations and other non-linear effects are beyond the scope of this article.
Cirrospiloideus guamensis Fullaway
Creators: name: Swezey, O. H.
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Aphelinidae
Cirrospiloideus
Cirrospiloideus guamensis

description: 40.Cirrospiloideus guamensis Fullaway, Haw. Ent. Soc., Proc. 2: 287, 1913. Inarajan, May 7, ex bean leafminer, Swezey; Orote Peninsula, May 24, ex leafminer in undetermined plant, Swezey; Umatac, May 28, ex leafminer in large-leaved Ficus, Swezey; Orote Peninsula, July 19, ex leafminer in Caesalpinia bonducella, Swezey; Inarajan, July 25, ex leafminer in undetermined vine; Machanao, June 30, ex leafminer in Glochidion marianum, Swezey. Thirteen specimens, five retained in U. S. National Museum. Reared by Fullaway in 1911 from lepidopterous leafminers in Terminalia catappa and Heritiera littoralis. We reared it from several leafminers.
description: Published as part of Swezey, O. H., 1946, Notes On Some Guam Chalcidoidea, pp. 211-219 in Insects of Guam II, Honolulu, Hawaii :Bernice P. Bishop Museum on page 216, DOI: 10.5281/zenodo.5173516
Magnetization degree at the jet base of M87 derived from the event horizon telescope data: Testing magnetically driven jet paradigm
Creators: name: Kino, M.
name: Takahara, F.
name: Hada, K.
name: Akiyama, K.
name: Nagai, H.
name: Sohn, B. W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We explore the degree of magnetization at the jet base of M87 by using the observational data of the event horizon telescope (EHT) at 230~GHz obtained by Doeleman et al. By utilizing the method in Kino et al., we derive the energy densities of magnetic fields ($U_{B}$) and electrons and positrons ($U_{\pm}$) in the compact region detected by EHT (EHT-region) with its full-width-half-maximum size $40~{\rm μas}$. First, we assume that an optically-thick region for synchrotron self absorption (SSA) exists in the EHT-region. Then, we find that the SSA-thick region should not be too large not to overproduce the Poynting power at the EHT-region. The allowed ranges of the angular size and the magnetic field strength of the SSA-thick region are $21~{\rm μas} \le θ_{\rm thick}\le 26.3~{\rm μas}$ and $50~{\rm G}\le B_{\rm tot}\le 124~{\rm G}$, respectively. Correspondingly $U_{B}\gg U_{\pm} $ is realized in this case. We further examine the composition of plasma and energy density of protons by utilizing the Faraday rotation measurement ($RM$) at 230~GHz obtained by Kuo et al. Then, we find that $U_{B}\gg U_{\pm}+U_{p} $ still holds in the SSA-thick region. Second, we examine the case when EHT-region is fully SSA-thin. Then we find that $U_{B}\gg U_{\pm}$ still holds unless protons are relativistic. Thus, we conclude that magnetically driven jet scenario in M87 is viable in terms of energetics close to ISCO scale unless the EHT-region is fully SSA-thin and relativistic protons dominated.
description: 14 pages, 5 figures, 3 tables, accepted for publication in ApJ
Transitioning from Stage-III to Stage-IV: Cosmology from galaxy$\times$CMB lensing and shear$\times$CMB lensing
Creators: name: Zhang, Zhuoqi
name: Chang, Chihway
name: Larsen, Patricia
name: Secco, Lucas F.
name: Zuntz, Joe
name: Collaboration, the LSST Dark Energy Science
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the cosmological constraining power from two cross-correlation probes between galaxy and CMB surveys: the cross-correlation of lens galaxy density with CMB lensing convergence $\langleδκ\rangle$, and source galaxy weak lensing shear with CMB lensing convergence $\langleγκ\rangle$. These two cross-correlation probes provide an independent cross-check of other large-scale structure constraints and are insensitive to galaxy-only or CMB-only systematic effects. In addition, when combined with other large-scale structure probes, the cross-correlations can break degeneracies in cosmological and nuisance parameters, improving both the precision and robustness of the analysis. In this work, we study how the constraining power of $\langleδκ\rangle+\langleγκ\rangle$ changes from Stage-III (ongoing) to Stage-IV (future) surveys. Given the flexibility in selecting the lens galaxy sample, we also explore systematically the impact on cosmological constraints when we vary the redshift range and magnitude limit of the lens galaxies using mock galaxy catalogs. We find that in our setup, the contribution to cosmological constraints from $\langleδκ\rangle$ and $\langleγκ\rangle$ are comparable in the Stage-III datasets; but in Stage-IV surveys, the noise in $\langleδκ\rangle$ becomes subdominant to cosmic variance, preventing $\langleδκ\rangle$ to further improve the constraints. This implies that to maximize the cosmological constraints from future $\langleδκ\rangle+\langleγκ\rangle$ analyses, we should focus more on the requirements on $\langleγκ\rangle$ instead of $\langleδκ\rangle$. Furthermore, the selection of the lens sample should be optimized in terms of our ability to characterize its redshift or galaxy bias instead of its number density.
description: 18 pages, 13 figures
Kac boundary conditions of the logarithmic minimal models
Creators: name: Pearce, Paul A.
name: Tartaglia, Elena
name: Couvreur, Romain
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop further the implementation and analysis of Kac boundary conditions in the general logarithmic minimal models ${\cal LM}(p,p')$ with $1\le p
Local symmetry groups for arbitrary wavevectors
Creators: name: Maggio, Emanuele
name: Smolyanyuk, Andriy
name: Tomczak, Jan M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mathematical Physics (math-ph)
subject: Group Theory (math.GR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present an algorithm for the determination of the local symmetry group for arbitrary k-points in 3D Brillouin zones. First, we test our implementation against tabulated results available for standard high-symmetry points (given by universal fractional coordinates). Then, to showcase the general applicability of our methodology, we produce the irreducible representations for the ``non-universal high-symmetry" points, first reported by Setyawan and Curtarolo [Comput. Mater. Sci. 49, 299 (2010)]. The present method can be regarded as a first step for the determination of elementary band decompositions and symmetry-enforced constraints in crystalline topological materials.
description: 34 pages, 10 figures, 43 tables
WEBINAR: Pro tips for scaling bioinformatics workflows to HPC
Creators: name: Samaha, Georgina
name: Beecroft, Sarah
name: Downton, Matthew
Publisher: name: Zenodo
Year: 2023
Subjects: subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Workflows
subject: HPC
subject: High Performance Computing
subject: http://edamontology.org/topic_0091
subject: http://edamontology.org/topic_0769

description: This record includes training materials associated with the Australian BioCommons webinar ‘Pro tips for scaling bioinformatics workflows to HPC’. This webinar took place on 31 May 2023. Event description  High Performance Computing (HPC) infrastructures offer the computational scale and efficiency that life scientists need to handle complex biological datasets and multi-step computational workflows. But scaling workflows to HPC from smaller, more familiar computational infrastructures brings with it new jargon, expectations, and processes to learn. To make the most of HPC resources, bioinformatics workflows need to be designed for distributed computing environments and carefully manage varying resource requirements, and data scale related to biology. In this webinar, Dr Georgina Samaha from the Sydney Informatics Hub, Dr Matthew Downton from the National Computational Infrastructure (NCI) and Dr Sarah Beecroft from the Pawsey Supercomputing Research Centre help you navigate the world of HPC for running and developing bioinformatics workflows. They explain when you should take your workflows to HPC and highlight the architectural features you should make the most of to scale your analyses once you’re there. You’ll hear pro-tips for dealing with common pain points like software installation, optimising for parallel computing and resource management, and will find out how to get access to Australia’s National HPC infrastructures at NCI and Pawsey. Materials Materials are shared under a Creative Commons Attribution 4.0 International agreement unless otherwise specified and were current at the time of the event. Files and materials included in this record: Event metadata (PDF): Information about the event including, description, event URL, learning objectives, prerequisites, technical requirements etc. Index of training materials (PDF): List and description of all materials associated with this event including the name, format, location and a brief description of each file. Pro-tips_HPC_Slides: A PDF copy of the slides presented during the webinar. Materials shared elsewhere: A recording of this webinar is available on the Australian BioCommons YouTube Channel: https://youtu.be/YKJDRXCmGMo
О разложении движения, независимых от выбора системы отсчета производных и определяющих соотношениях при больших градиентах перемещений: взгляд с позиций многоуровневого моделирования
Creators: name: Трусов П.В.
name: Швейкин А.И.
name: Янц А.Ю.
Publisher: name: Физическая мезомеханика
Year: 2016
Subjects: БОЛЬШИЕ УПРУГОПЛАСТИЧЕСКИЕ ДЕФОРМАЦИИ
ОПРЕДЕЛЯЮЩИЕ СООТНОШЕНИЯ В СКОРОСТНОЙ ФОРМЕ
РАЗЛОЖЕНИЕ ДВИЖЕНИЯ НА КВАЗИТВЕРДОЕ И ДЕФОРМАЦИОННОЕ
ДВУХУРОВНЕВЫЕ МОДЕЛИ
СПИНЫ МЕЗОИ МАКРОУРОВНЕЙ
HIGH ELASTIC-PLASTIC STRAINS
CONSTITUTIVE RELATIONS IN THE RATE FORM
MOTION DECOMPOSITION INTO RIGID AND STRAIN-INDUCED ONE
TWO-SCALE MODELS
MACROAND MESOSCALE SPINS

description: Рассмотрены широко распространенные подходы к обобщению геометрически линейных определяющих соотношений на случай больших градиентов перемещений, основанные на замене материальных производных тензоров напряжений и деформаций на независимые от выбора системы отсчета (индифферентные) коротационные или конвективные производные. Вопрос о корректном выборе индифферентных производных анализируется с более общих позиций разложения движения на квазитвердое и деформационное. Показано, что использование в определяющих соотношениях коротационной производной Зарембы-Яуманна соответствует разложению движения с помощью теоремы Коши-Гельмгольца, согласно которой мгновенное жесткое вращение материальной частицы с малой окрестностью описывается тензором вихря. Анализируются соотношения, полученные при применении разложения движения с помощью так называемого «логарифмического спина». Отмечено, что входящие в указанные разложения тензоры спинов не связаны с материальными волокнами (в том числе с осями симметрии анизотропных материалов) на протяжении всего исследуемого процесса деформирования, вследствие чего эти спины не описывают вращение системы координат (для металлов кристаллографической), в которой определен тензор свойств материала. На базе двухуровневого (макрои мезоуровни) подхода для монои поликристаллических металлов предложен новый способ разложения движения. На мезоуровне спин определяется скоростью ротации жесткой подвижной системы координат, связанной с кристаллографическим направлением и кристаллографической плоскостью; с использованием предложенного спина записаны в скоростной форме определяющие соотношения мезоуровня. Спин представительного макрообъема устанавливается осреднением спинов кристаллитов, составляющих этот объем. С использованием этого спина сформулированы упругие определяющие соотношения в скоростной форме. Приведены иллюстративные примеры по определению напряженного состояния для нагружений по замкнутым траекториям деформации и нагружений по двухзвенным ломаным изотропных и анизотропных (с кубической симметрией, ГПУ) упругих материалов, а также упруго-вязкопластического ГЦК-кристаллита при использовании в определяющих соотношениях коротаци-онных производных, основанных на различных способах разложения движения.
Computation of the self-diffusion coefficient with low-rank tensor methods: application to the simulation of a cross-diffusion system
Creators: name: Dabaghi, Jad
name: Ehrlacher, Virginie
name: Strössner, Christoph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Cross-diffusion systems arise as hydrodynamic limits of lattice multi-species interacting particle models. The objective of this work is to provide a numerical scheme for the simulation of the cross-diffusion system identified in [J. Quastel, Comm. Pure Appl. Math., 45 (1992), pp. 623--679]. To simulate this system, it is necessary to provide an approximation of the so-called self-diffusion coefficient matrix of the tagged particle process. Classical algorithms for the computation of this matrix are based on the estimation of the long-time limit of the average mean square displacement of the particle. In this work, as an alternative, we propose a novel approach for computing the self-diffusion coefficient using deterministic low-rank approximation techniques, as the minimum of a high-dimensional optimization problem. The computed self-diffusion coefficient is then used for the simulation of the cross-diffusion system using an implicit finite volume scheme.
A strategy for covalent anchoring of self-assembling β3 oligoamide nanorods to gold surfaces
Creators: name: Hussein, Khadeeja
name: Kulkarni, Ketav
name: Barlow, Anders
name: Perlmutter, Patrick
name: Mechler, Adam
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 3405
subject: Organic chemistry
classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences
classificationCode: 3403
subject: Macromolecular and materials chemistry
classificationCode: 3406
subject: Physical chemistry

description: Oligopeptides stand out for their remarkable structural variability, ease of synthesis, and amenability to functionalization, making them exceedingly appealing for crafting functional nanostructured materials. The low metabolic stability of natural peptides can be overcome by replacing α-amino acids with β3-amino acids, to yield artificial peptides best described as substituted β3-oligoamides. Controlling the morphology of such structures by varying the amino acid residues and altering the oligoamide termini makes it possible to adapt the core design to a range of hierarchical structures and function. Conductivity is a desired property in such nanomaterials; preferably conductive materials should be chemically anchored to a highly conductive metal, such as gold surface to connect to macroscopic electronics. It is preferable to use thiol functionality, however β3 cysteine is not synthetically achieveable. In this study β3 [SLIA] oligoamide has been synthesized and functionalized at the N terminus with a thiol moiety. After successful synthesis and purification, the thiolated oligoamide was physically characterized to confirm binding to gold, self-assembly and hetero assembly on these anchor points. It was demonstrated with a quartz crystal microbalance (QCM) that self-assembling monolayers can be formed on a gold surface and the formation of a S-Au bond was confirmed with X-ray photoelectron spectroscopy. Growth of Ac-β3[WKLWEL] fibres on these anchor points was confirmed by using atomic force microscopy and QCM. Hence, a viable metal anchor has been established that lays the foundations for the future development of molecular electronics based on β3 oligoamides.
KADUNA STATE BUSINESS ENVIRONMENT, AfCFTA, AND THE IMPLICATIONS FOR AGRI-FOOD (MICRO, SMALL AND MEDIUM ENTERPRISES) ENTERPRISES: STAKEHOLDER PERCEPTION AND EVIDENCE REPORT
Creators: name: Olumba, Chukwudi
name: Olumba, Chukwudi
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agricultural and Food Policy
subject: Agriculture
subject: Policy
subject: Food
subject: Economics
subject: Nigeria

description: This report is on the outcome of deliberations from a one-day program organized by the Nigerian Agricultural Policy Activity (NAPA) in Makurdi, Benue state, to further enlighten and enhance the understanding of relevant stakeholders on the effects of Micro, Small, and Medium Enterprises (MSMEs) within the Agri-Food sub-sector. The African Continental Free Trade Area Agreement (AfCFTA) was also deliberated, focusing mainly on how businesses can improve their business activities, to participate and benefit from the agreement.
Homological Aspects of the Dual Auslander Transpose
Creators: name: Tang, Xi
name: Huang, Zhaoyong
Publisher: name: arXiv
Year: 2015
Subjects: subject: K-Theory and Homology (math.KT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: As a dual of the Auslander transpose of modules, we introduce and study the cotranspose of modules with respect to a semidualizing module $C$. Then using it we introduce $n$-$C$-cotorsionfree modules, and show that $n$-$C$-cotorsionfree modules possess many dual properties of $n$-torsionfree modules. In particular, we show that $n$-$C$-cotorsionfree modules are useful in characterizing the Bass class and investigating the approximation theory for modules. Moreover, we study $n$-cotorsionfree modules over artin algebras and answer negatively an open question of Huang and Huang posed in 2012.
description: 24 pages, to appear in Forum Mathematicum
Evolution of transport under cumulative damage in metro systems
Creators: name: Eraso-Hernandez, L. K.
name: Riascos, A. P.
name: Michelitsch, T. M.
name: Wang-Michelitsch, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: One dominant aspect of cities is transport and massive passenger mobilization which remains a challenge with the increasing demand on the public as cities grow. In addition, public transport infrastructure suffers from traffic congestion and deterioration, reducing its efficiency. In this paper, we study the capacity of transport in 33 worldwide metro systems under the accumulation of damage. We explore the gradual reduction of functionality in these systems associated with damage that occurs stochastically. The global transport of each network is modeled as the diffusive movement of Markovian random walkers on networks considering the capacity of transport of each link, where these links are susceptible to damage. Monte Carlo simulations of this process in metro networks show the evolution of the functionality of the system under damage considering all the complexity in the transportation structure. This information allows us to compare and classify the effect of damage in metro systems. Our findings provide a general framework for the characterization of the capacity to maintain the transport under failure in different systems described by networks.
description: 17 pages; 5 figures
Towards combinatorial invariance for Kazhdan-Lusztig polynomials
Creators: name: Blundell, Charles
name: Buesing, Lars
name: Davies, Alex
name: Veličković, Petar
name: Williamson, Geordie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Kazhdan-Lusztig polynomials are important and mysterious objects in representation theory. Here we present a new formula for their computation for symmetric groups based on the Bruhat graph. Our approach suggests a solution to the combinatorial invariance conjecture for symmetric groups, a well-known conjecture formulated by Lusztig and Dyer in the 1980s.
description: 47 pages, comments welcome
Invariant Measures for Hybrid Stochastic Systems
Creators: name: Garcia, Xavier
name: Kunze, Jennifer
name: Rudelius, Thomas
name: Sanchez, Anthony
name: Shao, Sijing
name: Speranza, Emily
name: Vidden, Chad
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper, we seek to understand the behavior of dynamical systems that are perturbed by a parameter that changes discretely in time. If we impose certain conditions, we can study certain embedded systems within a hybrid system as time-homogeneous Markov processes. In particular, we prove the existence of invariant measures for each embedded system and relate the invariant measures for the various systems through the flow. We calculate these invariant measures explicitly in several illustrative examples.
description: 18 pages, 7 figures
On the relation between Betti numbers of an Arf semigroup and its blowup
Creators: name: Lasoń, Michał
Publisher: name: arXiv
Year: 2014
Subjects: subject: Commutative Algebra (math.AC)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 13D99, 20M50, 20M14, 20M25

description: In this note we prove the relation between Betti numbers of an Arf semigroup $S$ and its blowup $S'$ in the case when they have the same multiplicity $n$. The relation is then $β_{i,s}(S')=β_{i,{s+(i+1)n}}(S)$.
description: final version, 4 pages