cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
In Vivo Antioxidants Activity of the Traditional Medicine Otolith Obtained from Catfish
Creators: name: Abdullah Ahmed, Areqi
name: A.M.M., Salih
name: Doaa Anwar, Ibrahim
name: Nazik M.E, Mustafa
Publisher: name: Zenodo
Year: 2024

description: Background: Otolith, commonly known as "ear stones", Otolith is used traditionally along coastal areas especially Hodeida governorate fir treatment of diabetes mellitus, the people there believe that it has many health benefits and magic control of diabetes and migraine headache pain

Objective: To investigate the in vivo antioxidant activity of otolith obtained from catfish.

Method: Twenty male rats were randomly divided into four groups (n = 5) in each group. Otolith at various concentration (5g/d, 10g/d and 15/d) were administered for 21 days depending on the design of the experiment. Catalase (CAT) activity was measured by monitoring the decomposition of H2O2, according to the method of Johansson and Borg. In vivo superoxide radical scavenging activity was measured by reduction in riboflavin/light/nitro blue tetrazolium (NBT). Reduction of NBT is the most popular method

Results: The administration of otolith at doses of 5, 10, and 15 g/day for 21 days significantly enhanced the activities of the antioxidant enzymes SOD and catalase in the serum of rats fed with Otolith, as compared to the control group.

Conclusion: The use of Otolith at higher dosages resulted in a noticeable rise in catalase activity, indicating improved antioxidant capabilities. Similarly, superoxide dismutase activity exhibited a similar trend with increased Otolith dosages, particularly at 10/day and 15/day, which were found to be significantly different from the control group.
High and low perturbations of the critical Choquard equation on the Heisenberg group
Creators: name: Bai, Shujie
name: Song, Yueqiang
name: Repovš, Dušan D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 35J20, 35R03, 46E35

description: We study the following critical Choquard equation on the Heisenberg group: \begin{equation*} \begin{cases} \displaystyle {-Δ_H u }=μ |u|^{q-2}u+\int_Ω \frac{|u(η)|^{Q_λ^{\ast}}} {|η^{-1}ξ|^λ} dη|u|^{Q_λ^{\ast}-2}u &\mbox{in }\ Ω, u=0 &\mbox{on }\ \partialΩ, \end{cases} \end{equation*} where $Ω\subset \mathbb{H}^N$ is a smooth bounded domain, $Δ_H$ is the Kohn-Laplacian on the Heisenberg group $\mathbb{H}^N$, $10$, $0<λ
Molecular dynamics characterisation of radiosensitising coated gold nanoparticles in aqueous environment
Creators: name: Verkhovtsev, Alexey V.
name: Nichols, Adam
name: Mason, Nigel J.
name: Solov'yov, Andrey V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Functionalized metal nanoparticles (NPs) have been proposed as promising radiosensitizing agents for more efficient radiotherapy treatment using photons and ion beams. Radiosensitizing properties of NPs may depend on many different parameters (such as size, composition and density) of the metal core, organic coatings and the molecular environment. A systematic exploration of each of these parameters on the atomistic level remains a costly experimental task but it can be addressed by means of advanced computational modeling. This paper outlines a detailed computational procedure for the construction and atomistic-level characterization of radiosensitizing metal NPs in explicit molecular media. The procedure is general and extensible to many different combinations of the core, coating and environment. As an illustrative and experimentally relevant case study, we consider nanometre-sized gold NPs coated with thiol-poly(ethylene glycol)-amine molecules of different length and surface density and solvated in water at ambient conditions. Radial distribution of different atoms in the coatings as well as distribution and structural properties of water around the coated NPs are analyzed and linked to radiosensitizing properties of the NPs. It is revealed that the structure of the coating layer on the solvated NPs depends strongly on the surface density of ligands. At surface densities below $\sim$3 molecules/nm$^{2}$ the coating represents a mixture of different conformation states, whereas elongated "brush"-like structures are formed at higher densities of ligands. The water content in denser coatings is significantly lower at distances from 1 to 3 nm from the gold surface depending on the length of ligands. Such dense and thick coatings may suppress the production of hydroxyl radicals by low-energy electrons emitted from the metal NPs and thus diminish their radiosensitizing properties.
description: 16 pages, 11 figures
Invariant integral: the earliest works and most recent application
Creators: name: Cherepanov Genady, P.
Publisher: name: Физическая мезомеханика
Year: 2017
Subjects: INVARIANT INTEGRAL
CONTINUUM AND QUANTUM MECHANICS
COSMOLOGY
FRACTURE MECHANICS
THE UNIVERSE SHAPE
DARK ENERGY
BIG BANG
EXPANSION AND REVOLUTION OF THE UNIVERSE
ИНВАРИАНТНЫЙ ИНТЕГРАЛ
МЕХАНИКА СПЛОШНЫХ СРЕД И КВАНТОВАЯ МЕХАНИКА
КОСМОЛОГИЯ
МЕХАНИКА РАЗРУШЕНИЯ
ФОРМА ВСЕЛЕННОЙ
ТЕМНАЯ ЭНЕРГИЯ
БОЛЬШОЙ ВЗРЫВ
РАСШИРЕНИЕ И ЭВОЛЮЦИЯ ВСЕЛЕННОЙ

description: The present paper embraces mainly the three-year period of 1966 to 1968 when the invariant integral of fracture mechanics appeared and became popular, and the last two years of 2015 to 2016 when the neoclassic cosmology based on the invariant integral came up. A mention is given to the previous works of Euler, Cauchy, Maxwell, Nother, Gunther and Eshelby who dealt with invariant integrals in mathematics, hydrodynamics, electrodynamics, and the theory of dislocations. A brief review is given of the creation of the invariant integral of fracture mechanics under static and dynamic conditions for a solid continuum including elastic, plastic and viscoelastic materials, as well as of some of its most important applications, ramifications and generalizations for other physical fields. The initial phase of the expansion and revolution of the large-scale universe is studied in the framework of the neoclassic approach, including the Big Bang and the Dark Energy; it is shown that the spheroidal shape of the universe assumed at the Big Bang retains its eccentricity constant in the initial phase. The assumption of a superphoton as a primordial universe was analyzed.
Predicting Depressive Symptom Severity through Individuals' Nearby Bluetooth Devices Count Data Collected by Mobile Phones: A Preliminary Longitudinal Study
Creators: name: Zhang, Yuezhou
name: Folarin, Amos A
name: Sun, Shaoxiong
name: Cummins, Nicholas
name: Ranjan, Yatharth
name: Rashid, Zulqarnain
name: Conde, Pauline
name: Stewart, Callum
name: Laiou, Petroula
name: Matcham, Faith
name: Oetzmann, Carolin
name: Lamers, Femke
name: Siddi, Sara
name: Simblett, Sara
name: Rintala, Aki
name: Mohr, David C
name: Myin-Germeys, Inez
name: Wykes, Til
name: Haro, Josep Maria
name: Pennix, Brenda WJH
name: Narayan, Vaibhav A
name: Annas, Peter
name: Hotopf, Matthew
name: Dobson, Richard JB
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The Bluetooth sensor embedded in mobile phones provides an unobtrusive, continuous, and cost-efficient means to capture individuals' proximity information, such as the nearby Bluetooth devices count (NBDC). The continuous NBDC data can partially reflect individuals' behaviors and status, such as social connections and interactions, working status, mobility, and social isolation and loneliness, which were found to be significantly associated with depression by previous survey-based studies. This paper aims to explore the NBDC data's value in predicting depressive symptom severity as measured via the 8-item Patient Health Questionnaire (PHQ-8). The data used in this paper included 2,886 bi-weekly PHQ-8 records collected from 316 participants recruited from three study sites in the Netherlands, Spain, and the UK as part of the EU RADAR-CNS study. From the NBDC data two weeks prior to each PHQ-8 score, we extracted 49 Bluetooth features, including statistical features and nonlinear features for measuring periodicity and regularity of individuals' life rhythms. Linear mixed-effect models were used to explore associations between Bluetooth features and the PHQ-8 score. We then applied hierarchical Bayesian linear regression models to predict the PHQ-8 score from the extracted Bluetooth features. A number of significant associations were found between Bluetooth features and depressive symptom severity. Compared with commonly used machine learning models, the proposed hierarchical Bayesian linear regression model achieved the best prediction metrics, R2= 0.526, and root mean squared error (RMSE) of 3.891. Bluetooth features can explain an extra 18.8% of the variance in the PHQ-8 score relative to the baseline model without Bluetooth features (R2=0.338, RMSE = 4.547).
Quasi-periodicities of PKS 2155-304
Creators: name: Sandrinelli, Angela
name: Covino, Stefano
name: Treves, Aldo
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have searched for periodicities in our VRIJHK photometry of PKS 2155-304, which covers the years 2005-2012. A peak of the Fourier spectrum with high significance is found at T$\sim$315 days, confirming the recent findings by \cite{Zhang2014}. The examination of the gamma-ray light curves from the\textit{ Fermi} archives yields a significant signal at $\sim$ 2T, which, while nominally significant, involves data spanning only $\sim$ 6T. Assuming a black hole mass of $10^{9}\ M_{\odot}$ the Keplerian distance corresponding to the quasi-period T is $\sim10^{16}$ cm, about 50 Schwarzschild radii.
description: 11 pages, 1 figure
Encyrtus barbatus Timberlake
Creators: name: Swezey, O. H.
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Encyrtus
Encyrtus barbatus

description: 25.Encyrtus barbatus Timberlake, Haw. Ent. Soc., Proc. 4: 209, 1919. Ritidian Point, June 2, Usinger; Barrigada, July 6, swept from Intsia bijuga, Swezey. Two specimens.
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 214, DOI: 10.5281/zenodo.5173516
Complexity dichotomy for List-5-Coloring with a forbidden induced subgraph
Creators: name: Hajebi, Sepehr
name: Li, Yanjia
name: Spirkl, Sophie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: For a positive integer $r$ and graphs $G$ and $H$, we denote by $G+H$ the disjoint union of $G$ and $H$, and by $rH$ the union of $r$ mutually disjoint copies of $H$. Also, we say $G$ is $H$-free if $H$ is not isomorphic to an induced subgraph of $G$. We use $P_t$ to denote the path on $t$ vertices. For a fixed positive integer $k$, the List-$k$-Coloring Problem is to decide, given a graph $G$ and a list $L(v)\subseteq \{1,\ldots,k\}$ of colors assigned to each vertex $v$ of $G$, whether $G$ admits a proper coloring $ϕ$ with $ϕ(v)\in L(v)$ for every vertex $v$ of $G$, and the $k$-Coloring Problem is the List-$k$-Coloring Problem restricted to instances with $L(v)=\{1,\ldots, k\}$ for every vertex $v$ of $G$. We prove that for every positive integer $r$, the List-$5$-Coloring Problem restricted to $rP_3$-free graphs can be solved in polynomial time. Together with known results, this gives a complete dichotomy for the complexity of the List-$5$-Coloring Problem restricted to $H$-free graphs: For every graph $H$, assuming P$\neq$NP, the List-$5$-Coloring Problem restricted to $H$-free graphs can be solved in polynomial time if and only if $H$ is an induced subgraph of either $rP_3$ or $P_5+rP_1$ for some positive integer $r$. As a hardness counterpart, we also show that the $k$-Coloring Problem restricted to $rP_4$-free graphs is NP-complete for all $k\geq 5$ and $r\geq 2$.
description: Accepted manuscript, see DOI for journal version
Generating and verifying entangled itinerant microwave fields with efficient and independent measurements
Creators: name: Ku, H. S.
name: Kindel, W. F.
name: Mallet, F.
name: Glancy, S.
name: Irwin, K. D.
name: Hilton, G. C.
name: Vale, L. R.
name: Lehnert, K. W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By combining a squeezed propagating microwave field and an unsqueezed vacuum field on a hybrid (microwave beam-splitter), we generate entanglement between the two output modes. We verify that we have generated entangled states by making independent and efficient single-quadrature measurements of the two output modes. We observe the entanglement witness $E_\mathrm{W}=-0.263^{+0.001}_{-0.036}$ and the negativity $N=0.0824^{+0.01}_{-0.0004}$ with measurement efficiencies at least $26\pm{0.1}\%$ and $41\pm{0.2}\%$ for channel~1 and 2 respectively. These measurements show that the output two-mode state violates the separability criterion and therefore demonstrate entanglement. This shared entanglement between propagating microwaves provides an important resource for building quantum networks with superconducting microwave systems.
Switching Current Distributions in Josephson Junctions at Very Low Temperatures
Creators: name: Blackburn, James A.
name: Cirillo, Matteo
name: Grønbech-Jensen, Niels
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Swept bias experiments carried out on Josephson junctions yield the distributions of the probabilities of early switching from the zero voltage state. Kramers' theory of thermally activated escape from a one-dimensional potential is well known to fall short of explaining such experiments when the junctions are at millikelvin temperatures. We propose a simple revision of the theory which is shown to yield extremely good agreement with experimental data.
description: Five pages, six figures
Pseudococcobius terryi
Creators: name: Swezey, O. H.
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Pseudococcobius
Pseudococcobius terryi

description: 27.Pseudococcobius terryi (Fullaway). Aphycus terryi Fullaway, Haw. Ent. Soc., Proc. 2: 281, 1913. Pseudococcobius terryi (Fullaway), Timberlake, Haw. Ent. Soc., Proc. 5: 431, 1924. Piti, July 27, reared from the mealybug Pseudococcus boninsis (Kuwana) on sugar cane, Swezey. Two slide mounts, one retained in U. S. National Museum; two specimens on a point.
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 214, DOI: 10.5281/zenodo.5173516
Improving Semiconductor Device Modeling for Electronic Design Automation by Machine Learning Techniques
Creators: name: Wang, Zeheng
name: Li, Liang
name: Leon, Ross C. C.
name: Yang, Jinlin
name: Shi, Junjie
name: van der Laan, Timothy
name: Usman, Muhammad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The semiconductors industry benefits greatly from the integration of Machine Learning (ML)-based techniques in Technology Computer-Aided Design (TCAD) methods. The performance of ML models however relies heavily on the quality and quantity of training datasets. They can be particularly difficult to obtain in the semiconductor industry due to the complexity and expense of the device fabrication. In this paper, we propose a self-augmentation strategy for improving ML-based device modeling using variational autoencoder-based techniques. These techniques require a small number of experimental data points and does not rely on TCAD tools. To demonstrate the effectiveness of our approach, we apply it to a deep neural network-based prediction task for the Ohmic resistance value in Gallium Nitride devices. A 70% reduction in mean absolute error when predicting experimental results is achieved. The inherent flexibility of our approach allows easy adaptation to various tasks, thus making it highly relevant to many applications of the semiconductor industry.
description: Entirely rewrote and reorganized. Updated models
Irradiation driven molecular dynamics simulation of the FEBID process for Pt(PF$_3$)$_4$
Creators: name: Prosvetov, Alexey
name: Verkhovtsev, Alexey V.
name: Sushko, Gennady B.
name: Solov'yov, Andrey V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This paper presents a detailed computational protocol for atomistic simulation of the formation and growth of metal-containing nanostructures during the Focused Electron Beam Induced Deposition (FEBID) process. The protocol is based upon the Irradiation-Driven Molecular Dynamics (IDMD) - a novel and general methodology for computer simulations of irradiation-driven transformations of complex molecular systems by means of the advanced software packages MBN Explorer and MBN Studio. Atomistic simulations performed following the formulated protocol provide valuable insights into the fundamental mechanisms of electron-induced precursor fragmentation and the related mechanism of nanostructure formation and growth using FEBID, which are essential for the further advancement of FEBID-based nanofabrication. The developed computational methodology is general and applicable to different precursor molecules, substrate types, irradiation regimes, etc. The methodology can also be adjusted to simulate the nanostructure formation by other nanofabrication techniques using electron beams, such as direct electron beam lithography. In the present study, the methodology is applied to the IDMD simulation of the FEBID of Pt(PF$_3$)$_4$ - a widely studied precursor molecule - on a SiO$_2$ surface. The simulations reveal the processes driving the initial phase of nanostructure formation during FEBID, including nucleation of Pt atoms, formation of small metal clusters on the surface, followed by their aggregation and the formation of dendritic platinum nanostructures. The analysis of the simulation results provides space resolved relative metal content, height and the growth rate of the deposits which represent valuable reference data for the experimental characterization of the nanostructures grown by FEBID.
description: 19 pages, 12 figures
Manifolds.jl: An Extensible Julia Framework for Data Analysis on Manifolds
Creators: name: Axen, Seth D.
name: Baran, Mateusz
name: Bergmann, Ronny
name: Rzecki, Krzysztof
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Software (cs.MS)
subject: FOS: Computer and information sciences

description: We present the Julia package Manifolds.jl, providing a fast and easy-to-use library of Riemannian manifolds and Lie groups. This package enables working with data defined on a Riemannian manifold, such as the circle, the sphere, symmetric positive definite matrices, or one of the models for hyperbolic spaces. We introduce a common interface, available in ManifoldsBase.jl, with which new manifolds, applications, and algorithms can be implemented. We demonstrate the utility of Manifolds.jl using Bézier splines, an optimization task on manifolds, and principal component analysis on nonlinear data. In a benchmark, Manifolds.jl outperforms all comparable packages for low-dimensional manifolds in speed; over Python and Matlab packages, the improvement is often several orders of magnitude, while over C/C++ packages, the improvement is two-fold. For high-dimensional manifolds, it outperforms all packages except for Tensorflow-Riemopt, which is specifically tailored for high-dimensional manifolds.
A Rigorous Derivation of the Functional Renormalisation Group Equation
Creators: name: Ziebell, Jobst
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The functional renormalisation group equation is derived in a mathematically rigorous fashion in a framework suitable for the Osterwalder-Schrader formulation of quantum field theory. To this end, we devise a very general regularisation scheme which retains reflection positivity as well as the infinite degrees of freedom including smoothness. Furthermore, it is shown how the classical limit is altered by the regularisation process leading to an inevitable breaking of translation invariance. We also give precise conditions for the convergence of the obtained theories upon removal of the regularisation.
Alpha-decay from $^{44}$Ti: A study of the microscopic clusterization
Creators: name: Dassie, Alan C.
name: Betan, Rodolfo M. Id
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Microscopic determination of alpha-decay half-lives requires structure and reaction calculations. The structure part is given by the microscopic distribution of the constituent nucleons, while the relative motion of the product's decay provides the reaction part. This paper studies the clusterization of the $0^+$ excited states of $^{44}$Ti arising from the nucleonic degrees of freedom. The continuum spectra of proton and neutron are incorporated through the Gamow Shell Model formalism. The alpha-like wave function is calculated in the weak-coupling approximation. Gaussian effective interaction in each pair of nucleons is included. The $0^+$ ground and excited states are compared with experiment and shell model calculations. The wave function amplitudes are obtained and discriminated by their resonant and non-resonant contributions. The influence of a four-body truncated basis is analyzed. Inclusion of the continuum spectra produces a gain in the excited states of a few hundred keV of energy. One candidate for alpha decay was identified near the experimental unresolved state $(0,2)^+$ of 6.8 MeV excitation energy, with a lower limit for the half-life of $\approx 0.8$ ns.
description: 8 pages, 3 figures, 9 tables, 35 references
Violating the Modified Helstrom Bound with Nonprojective Measurements
Creators: name: Dressel, Justin
name: Brun, Todd A.
name: Korotkov, Alexander N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the discrimination of two pure quantum states with three allowed outcomes: a correct guess, an incorrect guess, and a non-guess. To find an optimum measurement procedure, we define a tunable cost that penalizes the incorrect guess and non-guess outcomes. Minimizing this cost over all projective measurements produces a rigorous cost bound that includes the usual Helstrom discrimination bound as a special case. We then show that nonprojective measurements can outperform this modified Helstrom bound for certain choices of cost function. The Ivanovic-Dieks-Peres unambiguous state discrimination protocol is recovered as a special case of this improvement. Notably, while the cost advantage of the latter protocol is destroyed with the introduction of any amount of experimental noise, other choices of cost function have optima for which nonprojective measurements robustly show an appreciable, and thus experimentally measurable, cost advantage. Such an experiment would be an unambiguous demonstration of a benefit from nonprojective measurements.
description: 5 pages, 2 figures
Does the Berry phase in a quantum optical system originate from the rotating wave approximation
Creators: name: Wang, Minghao
name: Wei, L. F.
name: Liang, J. Q.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Berry phase (BP) in a quantized light field demonstrated more than a decade ago (Phys. Rev. Lett. 89, 220404) has attracted considerable attentions, since it plays an important role in the cavity quantum electrodynamics. However, it is argued in a recent paper ( Phys. Rev. Lett. 108, 033601) that such a BP is just due to the rotating wave approximation (RWA) and the relevant BP should vanish beyond this approximation. Based on a consistent analysis we conclude in this letter that the BP in a generic Rabi model actually exists, no matter whether the RWA is applied. The existence of BP is also generalized to a three-level atom in the quantized cavity field.
description: 5 pages, 2 figures
Adelencyrtus chionaspidis
Creators: name: Swezey, O. H.
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Adelencyrtus
Adelencyrtus chionaspidis

description: 28.Adelencyrtus chionaspidis (Howard). Encyrtus chionaspidis Howard, U. S. Nat. Mus., Proc. 18: 637, 1896. Piti, May 23, two specimens swept from grass, Swezey.
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 215, DOI: 10.5281/zenodo.5173516
Para-Ricci-like Solitons on Almost Paracontact Almost Paracomplex Riemannian Manifolds
Creators: name: Manev, Hristo
name: Manev, Mancho
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 53C25, 53D15, 53C50 (Primary) 53C44, 53D35, 70G45 (Secondary)

description: It is introduced and studied para-Ricci-like solitons with potential Reeb vector field on almost paracontact almost paracomplex Riemannian manifolds. The special cases of para-Einstein-like, para-Sasaki-like and having a torse-forming Reeb vector field have been considered. It is proved a necessary and sufficient condition the manifold to admit a para-Ricci-like soliton which is the structure to be para-Einstein-like. Explicit examples are provided in support of the proven statements.
description: 12 pages
Lessons Learnt: Promises, Achievements, Shortcomings and Pitfalls of Malawian Input Subsidies
Creators: name: Nyondo, Christone
name: Khonje, Makaiko
name: Mangisoni, Julius
name: Burke, William J.
name: Ricker-Gilbert, Jake
name: Chilora, Lemekezani
name: Nyondo, Christone
name: Khonje, Makaiko
name: Mangisoni, Julius
name: Burke, William J.
name: Ricker-Gilbert, Jake
name: Chilora, Lemekezani
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: International Development
subject: Input subsidy program
subject: Productivity
subject: Crop response
subject: Soil fertility management
subject: Malawi

description: • Input subsidy programs (ISPs) in Malawi have aimed at improving farmersʼ access to quality farm inputs. • Subsidies have, at times, increased legume production and intercropping, which can improve household incomes and nutrition. • Maize productivity and production have increased, somewhat improving food security and national food self-sufficiency, but many households remain poor and vulnerable. • The incidence of poverty has not changed much since the introduction of the Farm Inputs Subsidy Program (FISP) in 2004/05. • Maize imports, real maize prices, and persistent food insecurity continue to rise, requiring distribution of food aid. • Early enthusiasm has begun to wane in the face of underwhelming improvement in several key areas. • The rate of maize productivity increase from ISPs is smaller than many expected, primarily attributable to low maize response rates to fertilizers. • The primary contributors to low maize yield response vary by location but can include soil biology (e.g., soil carbon), soil chemistry (e.g., pH), soil physics (e.g., sandy soils), and farm management. • Integrated soil fertility management practices and improved on-farm agronomic practices (e.g., application timing and weeding) could improve yield responses to fertilizers. • Policy reforms to improve the contribution of ISPs to farm-level productivity could include integrating complementary soil fertility management practices, such as organic fertilizers, improved targeting, and improving the efficiency of inputs supply chain systems.
The thickening of the thin disk in the third Galactic quadrant
Creators: name: Carraro, Giovanni
name: Vazquez, Ruben A.
name: Costa, Edgardo
name: Ahumada, Javier A.
name: Giorgi, Edgar E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In the third Galactic quadrant (180 < l < 270) of the Milky Way, the Galactic thin disk exhibits a significant warp ---shown both by gas and young stars--- bending down a few kpc below the formal Galactic plane (b=0). This warp shows its maximum at 240, in the direction of the Canis Major constellation. In a series of papers we have traced the detailed structure of this region using open star clusters, putting particular emphasis on the spiral structure of the outer disk. We noticed a conspicuous accumulation of young star clusters within 2-3 kpc from the Sun and close to b=0, that we interpreted as the continuation of the Local (Orion) arm towards the outer disk. While most clusters (and young stars in their background) follow closely the warp of the disk, our decade-old survey of the spiral structure of this region led us to identify three clusters, Haffner~18(1 and 2) and Haffner~19, which remain very close to b=0 and lie at distances (4.5, 8.0, and 6.4 kpc) where most of the material is already significantly warped. Here we report on a search for clusters that share the same properties as Haffner~18 and 19, and investigate the possible reasons for such an unexpected occurrence. We present UBVRI photometry of 5~young clusters, namely NGC~2345, NGC~2374, Trumpler~9, Haffner~20, and Haffner~21, which also lie close to the formal Galactic plane. With the exception of Haffner~20, in the background of these clusters we detected young stars that appear close to b=0, and are located at distances up to 8 kpc from the Sun, thus deviating significantly from the warp. These populations define a structure that distributes over almost the entire third Galactic quadrant. We discuss this structure in the context of a possible thin disk flaring, in full similarity with the Galactic thick disk.
description: 53 pages, 12 eps figures, in press in the Astronomical Journal
Echthrogonatopus exitious
Creators: name: Swezey, O. H.
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Echthrogonatopus
Echthrogonatopus exitious

description: 29. Echthrogonatopus exitiosus Perkins, Haw. Sugar Plant. Assoc. Expt. Sta., Ent. Bull. 1 (8): 256, 1906. Agana, May 4, one swept from mango leaves, near a taro patch, Swezey; Inarajan, May 7, reared from dryinid cocoon from a delphacid leafhopper on Sporobolus grass, Usinger; Piti, May 12, reared from dryinid cocoon on taro leaf, Swezey; Piti, May 23, swept from lawn grass, Swezey; Merizo, Oct. 2, four reared from dryinid cocoon on taro, Swezey; Libugon Farm, Nov. 10, eight reared from dryinid cocoons on taro leaves, Swezey. Two slide mounts, one retained at U. S. National Museum; 13 specimens on points, four retained at U. S. National Museum. A parasite of Dryinidae. The host of the dryinid whose cocoons were on taro leaves was the taro leafhopper Megamelus proserpina Kirkaldy.
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 215, DOI: 10.5281/zenodo.5173516
Random Matrix Analysis to Balance between Supervised and Unsupervised Learning under the Low Density Separation Assumption
Creators: name: Feofanov, Vasilii
name: Tiomoko, Malik
name: Virmaux, Aladin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We propose a theoretical framework to analyze semi-supervised classification under the low density separation assumption in a high-dimensional regime. In particular, we introduce QLDS, a linear classification model, where the low density separation assumption is implemented via quadratic margin maximization. The algorithm has an explicit solution with rich theoretical properties, and we show that particular cases of our algorithm are the least-square support vector machine in the supervised case, the spectral clustering in the fully unsupervised regime, and a class of semi-supervised graph-based approaches. As such, QLDS establishes a smooth bridge between these supervised and unsupervised learning methods. Using recent advances in the random matrix theory, we formally derive a theoretical evaluation of the classification error in the asymptotic regime. As an application, we derive a hyperparameter selection policy that finds the best balance between the supervised and the unsupervised terms of our learning criterion. Finally, we provide extensive illustrations of our framework, as well as an experimental study on several benchmarks to demonstrate that QLDS, while being computationally more efficient, improves over cross-validation for hyperparameter selection, indicating a high promise of the usage of random matrix theory for semi-supervised model selection.
Irradiation driven molecular dynamics: A review
Creators: name: Verkhovtsev, Alexey V.
name: Solov'yov, Ilia A.
name: Solov'yov, Andrey V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: This paper reviews Irradiation Driven Molecular Dynamics (IDMD) - a novel computational methodology for atomistic simulations of the irradiation driven transformations of complex molecular systems implemented in the MBN Explorer software package. Within the IDMD framework, various quantum processes occurring in irradiated systems are treated as random, fast and local transformations incorporated into the classical MD framework in a stochastic manner with the probabilities elaborated on the basis of quantum mechanics. Major transformations of irradiated molecular systems (such as topological changes, redistribution of atomic partial charges, alteration of interatomic interactions) and possible paths of their further reactive transformations can be simulated by means of MD with reactive force fields, in particular with the reactive CHARMM (rCHARMM) force field implemented in MBN Explorer. This paper reviews the general concept of the IDMD methodology and the rCHARMM force field and provides several exemplary case studies illustrating the utilization of these methods.
description: 12 pages, 8 figures. Review paper to be published in Eur. Phys. J. D
KEBBI STATE BUSINESS ENVIRONMENT, SUSTAINABLE DEVELOPMENT, AND THE IMPLICATIONS FOR AGRI-FOOD (MICRO, SMALL AND MEDIUM ENTERPRISES) VALUE CHAIN ACTORS: STAKEHOLDER PERCEPTION AND EVIDENCE REPORT.
Creators: name: Shaibu, Monday
name: Tasie, Oyinkan
name: Shaibu, Monday
name: Tasie, Oyinkan
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agricultural and Food Policy
subject: Agriculture
subject: Policy
subject: Food
subject: Nigeria
subject: Economics

description: This report is a product of in-depth interaction during a workshop and focus group discussion from relevant stakeholders, including Small and Medium Enterprises Development Agency of Nigeria (SMEDAN), Nigerian Association of Small and Medium Enterprises (NASME), Policymakers (Ministry of Agriculture, Ministry of Commerce, and Ministry of Justice), All Farmers Association of Nigeria (AFAN), Rice Farmers Association of Nigeria (RIFAN), Maize Farmers Association (MAN), and other relevant stakeholders from Kebbi State.
One-sided Hölder regularity of global weak solutions of negative order dispersive equations
Creators: name: Maehlen, Ola I. H.
name: Xue, Jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 2020 Mathematics Subject Classification. 35L03, 35Q53, 35B30

description: We prove global existence, uniqueness and stability of entropy solutions with $L^2\cap L^\infty$ initial data for a general family of negative order dispersive equations. It is further demonstrated that this solution concept extends in a unique continuous manner to all $L^2$ initial data. These weak solutions are found to satisfy one sided Hölder conditions whose coefficients decay in time. The latter result controls the height of solutions and further provides a way to bound the maximal lifespan of classical solutions from their initial data.
description: 46 pages
Ooencyrtus pacificus Waterston
Creators: name: Swezey, O. H.
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Ooencyrtus
Ooencyrtus pacificus

description: 30. Ooencyrtus pacificus Waterston, Bull. Ent. Research 6: 307, fig. 1, 1915. Ritidian Point, June 30, ex eggs of the bug Brachyplatys pacificus Dallas, Swezey; Barrigada, June 12, Usinger. Two slide mounts; one retained at U. S. National Museum. Described from Fiji on same host. Determined by D. T. Fullaway.
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 215, DOI: 10.5281/zenodo.5173516
Enhanced Kerr electro-optic nonlinearity through cascaded Pockels effects
Creators: name: Li, Guang-Zhen
name: Chen, Yu-Ping
name: Jiang, Hao-Wei
name: Chen, Xian-Feng
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrated a large enhancement of Kerr electro-optic nonlinearity through cascaded Pockels effects in a domain inversion ferroelectric crystal. We designed a structure that can implement the cascaded Pockels effects and second-harmonic generation simultaneously. The energy coupling between the fundamental lights of different polarizations led to a large nonlinear phase shift, and thus an effective electro-optic nonlinear refractive index. The effective nonlinearity can be either positive or negative, causing the second-harmonic spectra to move towards the coupling center, which in turn, offered us a way to measure the effective electro-optic nonlinear refractive index. The corresponding enhanced Kerr electro-optic nonlinearity is more than three orders of magnitude higher than the intrinsic value. These results open a door to manipulate the nonlinear phase by applying external electric field instead of light intensity in noncentrosymmetric crystals.
description: 15 pages, 6 figures
Encyrtid
Creators: name: Swezey, O. H.
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Encyrtid

description: 31. Encyrtid, genus and species? Piti, Nov. 5, one specimen swept from lawn grass, Swezey.
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 215, DOI: 10.5281/zenodo.5173516
Coherent phonon study of (GeTe)$_{l}$(Sb$_{2}$Te$_{3}$)$_{m}$ interfacial phase change memory materials
Creators: name: Makino, Kotaro
name: Saito, Yuta
name: Fons, Paul
name: Kolobov, Alexander V.
name: Nakano, Takashi
name: Tominaga, Junji
name: Hase, Muneaki
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The time-resolved reflectivity measurements were carried out on the interfacial phase change memory (iPCM) materials ([(GeTe)$_{2}$(Sb$_{2}$Te$_{3}$)$_{4}$]$_{8}$ and [(GeTe)$_{2}$(Sb$_{2}$Te$_{3}$)$_{1}$]$_{20}$) as well as conventional Ge$_{2}$Sb$_{2}$Te$_{5}$ alloy at room temperature and above the RESET-SET phase transition temperature. In the high-temperature phase, coherent phonons were clearly observed in the iPCM samples while drastic attenuation of coherent phonons was induced in the alloy. This difference strongly suggests the atomic rearrangement during the phase transition in iPCMs is much smaller than that in the alloy. These results are consistent with the unique phase transition model in which a quasi-one-dimensional displacement of Ge atoms occurs for iPCMs and a conventional amorphous-crystalline phase transition takes place for the alloy.
description: 4 pages, 4 figures. Accepted for the publication in Appl. Phys. Letters
Pentelicus
Creators: name: Swezey, O. H.
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Pentelicus

description: 32.Pentelicus species. Listed by Fulla.way 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 215, DOI: 10.5281/zenodo.5173516
The Impact of Strong Gravitational Lensing on Observed Lyman-Break Galaxy Numbers at 4
Creators: name: Barone-Nugent, R. L.
name: Wyithe, J. S. B
name: Trenti, M.
name: Treu, T.
name: Oesch, P.
name: Bouwens, R.
name: Illingworth, G. D.
name: Schmidt, K. B.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Detection of Lyman-Break Galaxies (LBGs) at high-redshift can be affected by gravitational lensing induced by foreground deflectors not only in galaxy clusters, but also in blank fields. We quantify the impact of strong magnification in the samples of $B$, $V$, $i$, $z$ $\&$ $Y$ LBGs ($4\lesssim z \lesssim8$) observed in the XDF and GOODS/CANDELS fields, by investigating the proximity of dropouts to foreground objects. We find that $\sim6\%$ of bright LBGs ($m_{H_{160}}<26$) at $z\sim7$ have been strongly lensed ($μ>2$) by foreground objects. This fraction decreases from $\sim 3.5\%$ at $z\sim6$ to $\sim1.5\%$ at $z\sim4$. Since the observed fraction of strongly lensed galaxies is a function of the shape of the luminosity function (LF), it can be used to derive Schechter parameters, $α$ and $M_{\star}$, independently from galaxy number counts. Our magnification bias analysis yields Schechter-function parameters in close agreement with those determined from galaxy counts albeit with larger uncertainties. Extrapolation of our analysis to $z\gtrsim 8$ suggests that future surveys with JSWT, WFIRST and EUCLID should find excess LBGs at the bright-end, even if there is an intrinsic exponential cutoff of number counts. Finally, we highlight how the magnification bias measurement near the detection limit can be used as probe of the population of galaxies too faint to be detected. Preliminary results using this novel idea suggest that the magnification bias at $M_{UV}\sim -18$ is not as strong as expected if $α\lesssim -1.7$ extends well below the current detection limits in the XDF. At face value this implies a flattening of the LF at $M_{UV}\gtrsim-16.5$. However, selection effects and completeness estimates are difficult to quantify precisely. Thus, we do not rule out a steep LF extending to $M_{UV}\gtrsim -15$.
description: Submitted to ApJ on 18/12/2014
Anisotropic Li diffusion in pristine and defective ZnO
Creators: name: Shukri, Ganes
name: Saputro, Adhitya G.
name: Tarabunga, Poetri S.
name: Panjaitan, Febriyanti V.
name: Agusta, Mohammad K.
name: Dipojono, Hermawan K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We study the Li interstitial diffusion in pristine and defective ZnO bulk by means of first-principles density functional theory (DFT) coupled with Nudged Elastic Band (NEB) calculations. We consider three types of point defects, i.e., oxygen vacancy (Ovac), Zn vacancy (Znvac) and ZnO vacancy pair (ZnOvac-pair) and investigate their individual effect on the energy barrier of Li interstitial diffusion. Our results predict that Ovac and Znvac lower the Li diffusion energy barrier as compared to the pristine ZnO case. However, we further find that Li interstitial on the other hand may possibly be trapped inside the Znvac subsequently forming the LiZn substitutional type of defect. The similar behavior also observed for Li interstitial in the vicinity of Zn-Ovac_pair though with less change of Li diffusion barriers as compared to the other two cases. Our results indicate that among the three considered defects only Ovac shows possible enhancement of the kinetics of Li diffusion inside ZnO bulk.
Mixed mode I/II fracture investigation of perspex based on the averaged strain energy density criterion
Creators: name: Aliha Mohammad Reza Mohammad
name: Filippo, Berto
name: Bahmani Aram
name: Pasquale, Gallo
Publisher: name: Физическая мезомеханика
Year: 2016
Subjects: НАГРУЖЕНИЕ СМЕШАННОГО ТИПА I/II
ПОЛИМЕТИЛМЕТАКРИЛАТ
КРИТЕРИЙ ПЛОТНОСТИ ЭНЕРГИИ ДЕФОРМАЦИИ
СОПРОТИВЛЕНИЕ РАЗРУШЕНИЮ
ПОЛУКРУГЛЫЙ И ТРЕУГОЛЬНЫЙ ОБРАЗЕЦ
MIXED MODE I/II
PMMA
SED CRITERION
FRACTURE TOUGHNESS
SEMI-CIRCULAR AND TRIANGULAR SPECIMENS

description: In this work, some recent mixed mode I/II fracture toughness results obtained from Perspex (or PMMA) with four simple cracked specimens subjected to the conventional three-point bend loading are reanalysed based on local energy concept. Although all the mentioned samples have been tested under the same and similar mode mixities, different fracture toughness envelopes were obtained for mixed mode I/II fracture of PMMA. The averaged strain energy density (SED) criterion has been applied in the past for different types of notched specimens (including U, V, O and key-hole notches). It is shown that the mixed mode tensile-in plane shear fracture toughness data obtained from the semi-circular and triangular crack type specimens are successfully predicted for sharp cracked PMMA samples using the SED criterion.
Dilepton Production in Transport-based Approaches
Creators: name: Weil, Janus
name: Endres, Stephan
name: van Hees, Hendrik
name: Bleicher, Marcus
name: Mosel, Ulrich
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We investigate dilepton production in transport-based approaches and show that the baryon couplings of the $ρ$ meson represent the most important ingredient for understanding the measured dilepton spectra. At SIS energies, the baryon resonances naturally play a major role and affect already the vacuum spectra via Dalitz-like contributions, which can be captured well in transport simulations. Recent pion-beam measurements at GSI will help to constrain the properties of the involved resonances further.
description: 4 pages, 2 figures; Proceedings of Hot Quarks 2014
Elasmus philippinensis Ashmead
Creators: name: Swezey, O. H.
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Elasmidae
Elasmus
Elasmus philippinensis

description: 33.Elasmus philippinensis Ashmead, U. S. Nat. Mus., Proc. 28: 138, 1904. Recorded by Fullaway in his 1911 collection in Guam. A specimen collected at Piti, July 24, is possibly merely a variety of philippinensis.
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 215, DOI: 10.5281/zenodo.5173516