cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nano-particle characterization by using Exposure Time Dependent Spectrum and scattering in the near field methods: how to get fast dynamics with low-speed CCD camera
Creators: name: Brogioli, Doriano
name: Croccolo, Fabrizio
name: Cassina, Valeria
name: Salerno, Domenico
name: Mantegazza, Francesco
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Light scattering detection in the near field, a rapidly expanding family of scattering techniques, has recently proved to be an appropriate procedure for performing dynamic measurements. Here we report an innovative algorithm, based on the evaluation of the Exposure Time Dependent Spectrum (ETDS), which makes it possible to measure the fast dynamics of a colloidal suspension with the aid of a simple near field scattering apparatus and a CCD camera. Our algorithm consists in acquiring static spectra in the near field at different exposure times, so that the measured decay times are limited only by the exposure time of the camera and not by its frame rate. The experimental set-up is based on a modified microscope, where the light scattered in the near field is collected by a commercial objective, but (unlike in standard microscopes) the light source is a He-Ne laser which increases the instrument sensitivity. The apparatus and the algorithm have been validated by considering model systems of standard spherical nano-particle.
Certificate-based Single Sign-On Mechanism for Multi-Platform Distributed Systems
Creators: name: Attila, Magyari
name: Bela, Genge
name: Piroska, Haller
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences
subject: D.4.2

description: We propose a certificate-based single sign-on mechanism in distributed systems. The proposed security protocols and authentication mechanisms are integrated in a middleware. The novelty of our middleware lies on the use of XPCOM components, this way we provide a different services that can be used on every platform where Mozilla is available. The componen based architecture of the implemented services allows using the authentication components separately.
Predicting the Amplitude of a Solar Cycle Using the North-South Asymmetry in the Previous Cycle: II. An Improved Prediction for Solar Cycle~24
Creators: name: Javaraiah, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recently, using Greenwich and Solar Optical Observing Network sunspot group data during the period 1874-2006, (Javaraiah, MNRAS, 377, L34, 2007: Paper I), has found that: (1) the sum of the areas of the sunspot groups in 0-10 deg latitude interval of the Sun's northern hemisphere and in the time-interval of -1.35 year to +2.15 year from the time of the preceding minimum of a solar cycle n correlates well (corr. coeff. r=0.947) with the amplitude (maximum of the smoothed monthly sunspot number) of the next cycle n+1. (2) The sum of the areas of the spot groups in 0-10 deg latitude interval of the southern hemisphere and in the time-interval of 1.0 year to 1.75 year just after the time of the maximum of the cycle n correlates very well (r=0.966) with the amplitude of cycle n+1. Using these relations, (1) and (2), the values 112 + or - 13 and 74 + or -10, respectively, were predicted in Paper I for the amplitude of the upcoming cycle 24. Here we found that in case of (1), the north-south asymmetry in the area sum of a cycle n also has a relationship, say (3), with the amplitude of cycle n+1, which is similar to (1) but more statistically significant (r=0.968) like (2). By using (3) it is possible to predict the amplitude of a cycle with a better accuracy by about 13 years in advance, and we get 103 + or -10 for the amplitude of the upcoming cycle 24. However, we found a similar but a more statistically significant (r=0.983) relationship, say (4), by using the sum of the area sum used in (2) and the north-south difference used in (3). By using (4) it is possible to predict the amplitude of a cycle by about 9 years in advance with a high accuracy and we get 87 + or - 7 for the amplitude of cycle 24.
description: 21 pages, 7 figures, Published in Solar Physics 252, 419-439 (2008)
Developing Competency Model for the Project Manager in the Libyan Construction Industry
Creators: name: Omran, Abdelnaser
name: Bazeabez, Ahmed
name: Gebril, Abdelwahab O.
name: Wah, Woo Suk
Publisher: name: International Journal of Economic Behavior
Year: 2012

description: Managers are more likely to perform better or to stay longer in their position if their personal characteristics meet the requirements of the position. The importance of project manager’s competency to construction derived from the nature of changing business circumstances of the industry. Developing the requisite competency on project manager is to ensure efficient performance that will bring to successful of a project. PEAKS framework was adapted and applied in order to determine the competency of the construction project managers within the Libyan construction industry. Two objectives which are following (i) to identify the construction project manager's perceptions on the level of importance of the competencies against their personality; and (ii) to determine the level of competencies of construction project managers were proposed to be achieved. Quantitative approach was implemented in this study whereby 50 questionnaires were sent out. However, of these, only 41 questionnaires were returned and analyzed. As result, it can be concluded that our project managers today are at the high level of competent. Keywords: Competency, Project manager, Construction industry, Model
description: International Journal of Economic Behavior, Vol 2, No 1 (2012): International Journal of Economic Behavior
Additional file 1: of Understanding the microbial basis of body odor in pre-pubescent children and teenagers
Creators: name: Lam, Tze
name: Verzotto, Davide
name: Brahma, Purbita
name: Ng, Amanda
name: Hu, Ping
name: Schnell, Dan
name: Tiesman, Jay
name: Kong, Rong
name: Ton, Thi
name: Li, Jianjun
name: Ong, May
name: Lu, Yang
name: Swaile, David
name: Liu, Ping
name: Liu, Jiquan
name: Nagarajan, Niranjan
Publisher: name: figshare
Year: 2018
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Computational Biology

description: Figures S1-S10, Tables S1, S3 and S4. (PDF 3276 kb)
The Propagator Matrix Reloaded
Creators: name: Melo, João F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The standard way to perform calculations for quantum field theories involves the S-matrix and the assumption that the theory is free at past and future infinity. However, this assumption may not hold for field theories in non-trivial backgrounds such as curved spacetimes or finite temperature. In fact, even in the simple case of finite temperature Minkowski spacetime, there are a lot of misconceptions and confusion in the literature surrounding how to correctly take interactions into account when setting up the initial conditions. The objective of this work is to clear up these misconceptions and provide a clean and simple derivation of a formalism which includes interactions in the initial conditions and assesses whether or not it is legitimate to ignore them. The ultimate conclusion is that we cannot ignore them: quantum field theories at finite temperature are not free in the infinite past.
description: 20+5 pages, 2 figures, added note in introduction addressing recent comments
Mental health support for adolescents living with type 1 diabetes : insights for modifications of the REACHOUT NexGEN mobile application
Creators: name: Yakubu, Titilola Islamiat
Publisher: name: University of British Columbia
Year: 2024

description: Background: Type 1 diabetes (T1D) is associated with various psychological struggles, making the management of this condition even more challenging. Integrating digitally enabled peer support interventions into diabetes care may improve mental health outcomes, such as diabetes distress. Objective: The objectives of this study are three-fold: (1) to examine the impact of digitally enabled peer support interventions on mental health outcomes in people living with type 1 diabetes, (2) to explore the mental health support needs of adolescents with T1D, and (3) to elicit feedback for translating REACHOUT, a mobile app originally designed to deliver peer-led mental health support to T1D adults, to meet the unique needs of adolescents with T1D. Methods: For the first objective, we conducted a comprehensive systematic review of the literature on the impact of digitally enabled peer support platforms on mental health outcomes for individuals living with T1D. For the second and third objectives, we utilized focus groups to explore the mental health support needs of adolescents with T1D (from the perspective of adolescents and their parents) and to determine preferences for translating REACHOUT to NexGEN. Results: In the systematic review, out of 3,623 abstracts screened, 34 studies underwent full-text evaluation, and nine were selected for synthesis. Of these, three showed significant reductions in diabetes distress, and two reported improvements in depression. Key factors linked to these outcomes included participatory intervention development, diabetes education, longer duration, theory-based frameworks, and peer mentor involvement. Participants in the focus group were ten adolescents (16 ± 1 years, 80% female) and ten parents (51 ± 7 years, 90% female). Four core themes (with subthemes) emerged, including 1) Experience: Navigating adolescence with T1D; 2) Empowerment: Support systems that enable better management of their T1D; 3) Obstacles: Societal barriers that affect adolescent’s T1D management; and 4) Innovation: Adolescent-driven preferences for virtual peer support platforms. Conclusion: Understanding T1D adolescents' specific support needs is crucial for addressing their emotional and social challenges. Involving them and their parents in tailoring NexGEN to their diabetes management and developmental needs is key. Future research should pilot NexGEN to assess its feasibility and acceptability before evaluative studies.
Measuring Retail Service Quality in Nigerian Departmental Stores
Creators: name: Oyeniyi, Omotayo
name: Abiodun, Abolaji Joachim
Publisher: name: International Journal of Economic Behavior
Year: 2012

description: The Nigerian economy is experiencing a boom in the retail sector of Departmental Stores. The sector is becoming increasingly competitive with the entry of foreign and multinational retail stores. Extant literature indicates that loyalty of the customers can be maintained with service quality. Consequently, the current study attempts to measure service quality among Nigerian departmental stores using Dabholkar, Thorpe & Renz (1996) Retail Service Quality Scale (RSQS) instrument to gauge customers’ satisfaction with the retail service quality in the Nigerian Retail sector. Four hundred and seventy eight customers of three major departmental stores in central Lagos, Nigeria were used for the study. Data generated was analyzed using factor analysis, correlation and hierarchical regression analysis to test the relationships of the five dimensions of RSQS and customer satisfaction. The study found RSQS to be a useful tool for evaluating retail service quality in retail sector of departmental stores. Physical dimension, reliability, personal interaction and problem solving were also found to significantly affect customers’ satisfaction, while policy was found not to have similar effect within the Nigerian environment. Keywords: Retailing, Service quality, Retail Service Quality Scale, Departmental Stores, Reliability, Customers Satisfaction, Personal Interaction, Service Performance Scale, Physical Aspect
description: International Journal of Economic Behavior, Vol 2, No 1 (2012): International Journal of Economic Behavior
Distributed quantum computation with arbitrarily poor photon detection
Creators: name: Matsuzaki, Yuichiro
name: Benjamin, Simon C.
name: Fitzsimons, Joseph
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a distributed quantum computer scalability is accomplished by networking together many elementary nodes. Typically the network is optical and inter-node entanglement involves photon detection. In complex networks the entanglement fidelity may be degraded by the twin problems of photon loss and dark counts. Here we describe an entanglement protocol which can achieve high fidelity even when these issues are arbitrarily severe; indeed the method succeeds with finite probability even if the detectors are entirely removed from the network. An experimental demonstration should be possible with existing technologies.
description: 5 pages, 4 figs
Direct observation of time-dependent coherent chiral tunneling dynamics
Creators: name: Sun, Wenhao
name: Tikhonov, Denis S.
name: Schnell, Melanie
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Superpositions of handed molecular states give rise to achiral eigenstates, delocalized across a double-well potential via tunneling. A coherent superposition of these energy eigenstates could dynamically relocalize the molecules into chiral states, which has only been addressed theoretically. Here, we present a microwave six-wave mixing pump-probe study to create and probe coherent chiral tunneling dynamics in a rotational state. Through a time-resolved scheme, we uncover the periodic time evolution of the induced chiral wavepacket under field-free conditions. Moreover, we demonstrate precise phase control of this coherence via phase modulation during pump excitation.
description: 14 pages, 4 figures in the main text and 27 pages, 12 figures, and 4 tables in the Supplementary Material
Networks’ Contribution to Small-Sized Firms’ Internationalization
Creators: name: Del Baldo, Mara
name: Aureli, Selena
Publisher: name: International Journal of Economic Behavior
Year: 2012

description: This paper analyzes a new legislative instrument called “network contract” designed to support inter-firm cooperation. It aims to verify whether this type of formal cooperation is used by small firms to support their international strategies. Results indicate that internationalization is not the primary goal for firms who participate in network contracts: Italian small and medium-sized firms use this instrument to achieve different strategies of growth and long-term objectives. While we found that some firms have indeed increased their business activity abroad after joining the network, we also found that those with an international dimension do not seem to have changed their approach towards internationalization. Consequently, we argue that the network contract is not the most suitable tool for promoting internationalization among domestic firms, although internationalization may emerge as a by-product of inter-firm relationships. Keywords: Network Contract; Networking Strategies; Internationalization; Inter-Firm Relationships; Italian Small and Medium-Sized Firms
description: International Journal of Economic Behavior, Vol 2, No 1 (2012): International Journal of Economic Behavior
Existence of weak solution to volume preserving mean curvature flow in higher dimensions
Creators: name: Takasao, Keisuke
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary 35K93, Secondary 53E10

description: In this paper, we construct a family of integral varifolds, which is a global weak solution to the volume preserving mean curvature flow in the sense of $L^2$-flow. This flow is also a distributional BV-solution for a short time, when the perimeter of the initial data is sufficiently close to that of ball with the same volume. To construct the flow, we use the Allen--Cahn equation with non-local term motivated by studies of Mugnai, Seis, and Spadaro, and Kim and Kwon. We prove the convergence of the solution for the Allen--Cahn equation to the family of integral varifolds with only natural assumptions for the initial data.
description: 42 pages
Targeting of Key Interest Rate as a Source of Crisis
Creators: name: Sokolova, Yana
Publisher: name: International Journal of Economic Behavior
Year: 2012

description: In response to the world economic crisis of 2008 the authorities of many countries have launched policies of interest rate reduction through large-scale asset purchases on the open market. The paper provides an efficiency analysis of these programs as implemented in the USA, the Eurozone and the UK. It also studies the positive and negative effects of artificial key rate targeting. The author explains how changes of the federal funds rate increased bank interest rate risk and provoked the recession of 2007-2009. The results of this paper show that key interest rate adjustment can be harmful for the whole economy, and especially for depository institutions. Keywords: Interest Rate Targeting, Crisis, Interest Rate Risk, Federal Funds Rate, Bank
description: International Journal of Economic Behavior, Vol 2, No 1 (2012): International Journal of Economic Behavior
Effective polarization in proton-induced $α$ knockout reactions
Creators: name: Edagawa, Tomoatsu
name: Yoshida, Kazuki
name: Chazono, Yoshiki
name: Ogata, Kazuyuki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The effective polarization of the residual nucleus in the proton-induced $α$ knockout reaction is investigated within the distorted wave impulse approximation framework. The strong absorption of the emitted $α$ particle results in strong selectivity on the reaction "position" depending on the third component of the single-particle orbital angular momentum of the $α$ particle inside a nucleus, hence on the spin direction of the reaction residue. This is caused by a mechanism that is similar to the Maris effect, the effective polarization in the proton-induced proton knockout reactions. However, as a distinct feature of the effective polarization in the $α$ knockout process, the spin degrees of freedom of the reacting particles play no role. The $α$ knockout process with complete kinematics can be a useful polarization technique for the residual nucleus, without actively controlling the spin of the proton.
description: 9 pages, 6 Figures, published in Physical Review C
MOESM2 of Area of exposure and treatment challenges of malaria in Eritrean migrants: a GeoSentinel analysis
Creators: name: Schlagenhauf, Patricia
name: Grobusch, Martin
name: Hamer, Davidson
name: Asgeirsson, Hilmir
name: Jensenius, Mogens
name: Eperon, Gilles
name: Rothe, Camilla
name: Isenring, Egon
name: Fehr, Jan
name: Schwartz, Eli
name: Bottieau, Emmanuel
name: Barnett, Elizabeth
name: McCarthy, Anne
name: Kelly, Paul
name: Schade Larsen, Carsten
name: Genderen, Perry
name: Stauffer, William
name: Libman, Michael
name: Gautret, Philippe
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2. Availability of primaquine and G6PDH deficiency testing at GeoSentinel sites.
Unusual dynamics of spin-1/2 antiferromagnets on the triangular lattice in magnetic field
Creators: name: Syromyatnikov, A. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We theoretically discuss dynamical properties of spin-1/2 Heisenberg antiferromagnet on the triangular lattice in magnetic field $\bf H$. We use the recently proposed bond-operator theory which operates with quantum states of the whole magnetic unit cell containing three spins. This technique describes accurately short-range spin correlations and provides a quantitative description of elementary excitations which appear in other approaches as bound states of conventional low-energy quasiparticles (e.g., magnons). In quantitative agreement with previous numerical and analytical findings, we observe four phases with coplanar spin arrangements upon the field increasing: the three-sublattice Y-phase, the collinear "up-up-down" (UUD) state, the non-collinear V-phase, and the collinear fully polarized (FP) state. We demonstrate that apart from magnons there are spin-0 elementary excitations in the UUD state one of which is long lived and its spectrum lies below magnon branches. This mode originates from a high-energy quasiparticle at $H=0$ and it produces anomalies only in the longitudinal spin correlator. In the V-phase, we obtain multiple short-wavelength spin excitations which have no counterparts in the semiclassical spin-wave theory. We demonstrate a highly nontrivial field evolution of quasiparticles spectra on the way from one collinear state (UUD) to another one (FP) via the non-collinear V-phase (in which the longitudinal and the transverse channels are mixed). In particular, some parts of the spin-0 branch in the UUD state become parts of the spin-1 (magnon) branch in the FP phase whereas some parts of one magnon branch turn into parts of spin-2 branch. Such evolution would be very difficult to find by any conventional analytical approach. Our results are in good agreement with neutron experimental data obtained recently in $\rm Ba_3CoSb_2O_9$, $\rm KYbSe_2$, and $\rm CsYbSe_2$.
description: 21 pages, 18 figures
Anti-obesity and immunomodulatory effects of oil and fermented extract dried from Tenebrio molitor larvae on aged obese mice
Creators: name: Mun, Seul-Ki
name: Jang, Chang Joo
name: Jo, Semi
name: Park, Si-Hyoun
name: Sim, Hyun Bo
name: Ramos, Sonny C.
name: Kim, Hyeongyeong
name: Choi, Yu-Jeong
name: Park, Dae-Han
name: Park, Kyung-Wuk
name: Jeong, Beom-Gyun
name: Kim, Dae Heon
name: Kang, Kyung-Yun
name: Kim, Jong-Jin
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified

description: Preventing disease and maintaining the health of the elderly are crucial goals for an aging population, with obesity and immune function restoration being of paramount importance. Obesity, particularly visceral obesity characterized by excessive fat accumulation around the abdominal organs, is linked to chronic conditions such as diabetes, hypertension, cardiovascular diseases, and immune dysfunction. Globally, obesity is considered a disease, prompting significant research interest in its treatment. Therefore, it is essential to explore potential therapeutic and preventive strategies to address obesity and the decline in immune function brought about by aging. Tenebrio molitor larvae (TML), commonly known as ‘mealworms,’ are rich in unsaturated fatty acids, including oleic and linoleic acids, and essential amino acids, such as isoleucine and tyrosine. In this study, we aimed to investigate the effects of the consumption of TML oil and mealworm fermented extract (MWF-1) on obesity and immunological changes in aged obese mice. Our data showed reduced body fat in 23-week-old C57BL/6 mice fed processed TML products for 6 weeks. Additionally, the characteristically high levels of serum triglycerides decreased by treating with TML oil. The immune responsiveness results confirmed an increase in B cells by treating with MWF-1, while cytokine levels (interferon-gamma, tumor necrosis factor-alpha, interleukin-2, and −6) were restored to levels similar to young mice. These results suggest that TML oil and MWF-1 are promising dietary supplements for addressing obesity and restoring immune function.
Awe Versus Aww: The Effectiveness of Two Kinds of Positive Emotional Stimulation on Stress Reduction for Online Content Moderators
Creators: name: Cook, Christine L.
name: Cai, Jie
name: Wohn, Donghee Yvette
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: When people have the freedom to create and post content on the internet, particularly anonymously, they do not always respect the rules and regulations of the websites on which they post, leaving other unsuspecting users vulnerable to sexism, racism, threats, and other unacceptable content in their daily cyberspace diet. However, content moderators witness the worst of humanity on a daily basis in place of the average netizen. This takes its toll on moderators, causing stress, fatigue, and emotional distress akin to the symptomology of post-traumatic stress disorder (PTSD). The goal of the present study was to explore whether adding positive stimuli to breaktimes-images of baby animals or beautiful, aweinspiring landscapes-could help reduce the negative side-effects of being a content moderator. To test this, we had over 300 experienced content moderators read and decide whether 200 fake text-based social media posts were acceptable or not for public consumption. Although we set out to test positive emotional stimulation, however, we actually found that it is the cumulative nature of the negative emotions that likely negates most of the effects of the intervention: the longer the person had practiced content moderation, the stronger their negative experience. Connections to compassion fatigue and how best to spend work breaks as a content moderator are discussed.
description: Accepted by CSCW 2022
Optimal (controlled) quantum state preparation and improved unitary synthesis by quantum circuits with any number of ancillary qubits
Creators: name: Yuan, Pei
name: Zhang, Shengyu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: As a cornerstone for many quantum linear algebraic and quantum machine learning algorithms, controlled quantum state preparation (CQSP) aims to provide the transformation of $|i\rangle |0^n\rangle \to |i\rangle |ψ_i\rangle $ for all $i\in \{0,1\}^k$ for the given $n$-qubit states $|ψ_i\rangle$. In this paper, we construct a quantum circuit for implementing CQSP, with depth $O\left(n+k+\frac{2^{n+k}}{n+k+m}\right)$ and size $O\left(2^{n+k}\right)$ for any given number $m$ of ancillary qubits. These bounds, which can also be viewed as a time-space tradeoff for the transformation, are \optimal for any integer parameters $m,k\ge 0$ and $n\ge 1$. When $k=0$, the problem becomes the canonical quantum state preparation (QSP) problem with ancillary qubits, which asks for efficient implementations of the transformation $|0^n\rangle|0^m\rangle \to |ψ\rangle |0^m\rangle$. This problem has many applications with many investigations, yet its circuit complexity remains open. Our construction completely solves this problem, pinning down its depth complexity to $Θ(n+2^{n}/(n+m))$ and its size complexity to $Θ(2^{n})$ for any $m$. Another fundamental problem, unitary synthesis, asks to implement a general $n$-qubit unitary by a quantum circuit. Previous work shows a lower bound of $Ω(n+4^n/(n+m))$ and an upper bound of $O(n2^n)$ for $m=Ω(2^n/n)$ ancillary qubits. In this paper, we quadratically shrink this gap by presenting a quantum circuit of the depth of $O\left(n2^{n/2}+\frac{n^{1/2}2^{3n/2}}{m^{1/2}}\right)$.
Application of the R-matrix method to Photoionization of Molecules
Creators: name: Tashiro, Motomichi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The R-matrix method has been used for theoretical calculation of electron collision with atoms and molecules for long years. The method was also formulated to treat photoionization process, however, its application has been mostly limited to photoionization of atoms. In this work, we implement the R-matrix method to treat molecular photoionization problem based on the UK R-matrix codes. This method can be used for diatomic as well as polyatomic molecules, with multi-configurational description for electronic states of both target neutral molecule and product molecular ion. Test calculations were performed for valence electron photoionization of nitrogen (N2) as well as nitric oxide (NO) molecules. Calculated photoionization cross sections and asymmetry parameters agree reasonably well with the available experimental results, suggesting usefulness of the method for molecular photoionization.
description: 31 pages, 8 figures. J.Chem.Phys. in press.
The Impact of EU Membership on the Financial Performance of Business Firms in Central and Eastern Europe
Creators: name: Erfani, G. Rod
name: Islam, Tonmoy
Publisher: name: International Journal of Economic Behavior
Year: 2012

description: This paper examines how European Union (EU) membership impacts the financial performance of business firms in the emerging economies of Central and Eastern Europe. In 2004, the European Union welcomed ten additional members: Cyprus, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia, and Slovenia. This was the largest enlargement in the history of the European Union. This study examines whether business firms from those ten countries improved their financial performance since joining the EU. It intends to empirically demonstrate that the profitability of the business firms increased since the ten countries joined the EU. Quarterly data on assets, short and long term liabilities, and common equity were collected. Data was collected for the period 2001- 2009. Econometric methods were used to determine the efficiency and profitability of these companies. The results of this study indicate that the companies benefited from joining the European Union. Keywords: Financial Performance, Financial Ratios, Efficiency, Profitability, European Union
description: International Journal of Economic Behavior, Vol 2, No 1 (2012): International Journal of Economic Behavior
Low-temperature pulverization-specific Sargassum horneri extract accelerates wound healing and attenuates inflammation in a mouse burn model
Creators: name: Shin, Eunguk
name: Kim, Hee-Tae
name: Lee, Haksoo
name: Kim, Byeongsoo
name: Park, Junhyeong
name: Park, Sujin
name: Yum, Soomin
name: Kim, Seul-Kee
name: Lee, Jae-Myung
name: Youn, BuHyun
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer

description: Burn injuries, affecting local skin disruption as well as inducing systemic inflammatory responses, are presented as a global public health problem. To enhance the effects of burn wound healing, treatment must simultaneously regulate both re-epithelialization and hyperinflammation. Extracts of Sargassum horneri (S. horneri) have shown a potential to enhance skin wound healing through antioxidative properties, immune enhancement, and modulation of inflammatory responses. However, despite its promising application for burn wound healing, specific investigation into S. horneri-derived compounds for enhancing wound healing has not yet been conducted. In this research, we investigated the burn wound-healing effect of the low-temperature pulverization-specific S. horneri extract (LPSHE), which could not be detected using the room-temperature grinding method. In a mouse burn model with third-degree burn injuries, LPSHE accelerated re-epithelialization by promoting the increase in F-actin formation and reduced burn-induced ROS levels. Additionally, LPSHE significantly regulated hyperinflammation by reducing pro-inflammatory cytokines. Further investigation into molecular mechanisms using HaCaT keratinocytes also demonstrated beneficial effects on burn wound healing. Taken together, our findings suggested that LPSHE is a promising therapeutic candidate for enhancing burn wound healing. Furthermore, this research underscored the importance of low-temperature pulverization in discovering novel natural compounds from marine organisms.
Well-posed elliptic Neumann problems involving irregular data and domains
Creators: name: Alvino, A.
name: Cianchi, A.
name: Maz'ya, V.
name: Mercaldo, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Nonlinear elliptic Neumann problems, possibly in irregular domains and with data affected by low integrability properties, are taken into account. Existence, uniqueness and continuous dependence on the data of generalized solutions are established under a suitable balance between the integrability of the datum and the (ir)regularity of the domain. The latter is described in terms of isocapacitary inequalities. Applications to various classes of domains are also presented.
A Survey on Scalable LoRaWAN for Massive IoT: Recent Advances, Potentials, and Challenges
Creators: name: Jouhari, Mohammed
name: Saeed, Nasir
name: Alouini, Mohamed-Slim
name: Amhoud, El Mehdi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Long-range (LoRa) technology is most widely used for enabling low-power wide area networks (WANs) on unlicensed frequency bands. Despite its modest data rates, it provides extensive coverage for low-power devices, making it an ideal communication system for many internet of things (IoT) applications. In general, LoRa is considered as the physical layer, whereas LoRaWAN is the medium access control (MAC) layer of the LoRa stack that adopts a star topology to enable communication between multiple end devices (EDs) and the network gateway. The chirp spread spectrum modulation deals with LoRa signal interference and ensures long-range communication. At the same time, the adaptive data rate mechanism allows EDs to dynamically alter some LoRa features, such as the spreading factor (SF), code rate, and carrier frequency to address the time variance of communication conditions in dense networks. Despite the high LoRa connectivity demand, LoRa signals interference and concurrent transmission collisions are major limitations. Therefore, to enhance LoRaWAN capacity, the LoRa Alliance released many LoRaWAN versions, and the research community has provided numerous solutions to develop scalable LoRaWAN technology. Hence, we thoroughly examine LoRaWAN scalability challenges and state-of-the-art solutions in both the physical and MAC layers. These solutions primarily rely on SF, logical, and frequency channel assignment, whereas others propose new network topologies or implement signal processing schemes to cancel the interference and allow LoRaWAN to connect more EDs efficiently. A summary of the existing solutions in the literature is provided at the end of the paper, describing the advantages and disadvantages of each solution and suggesting possible enhancements as future research directions.
Interlaced solitons and vortices in coupled DNLS lattices
Creators: name: Cuevas, J.
name: Hoq, Q. E.
name: Susanto, H.
name: Kevrekidis, P. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: In the present work, we propose a new set of coherent structures that arise in nonlinear dynamical lattices with more than one components, namely interlaced solitons. These are waveforms in which in the relevant anti-continuum limit, i.e. when the sites are uncoupled, one component has support where the other component does not. We illustrate systematically how one can combine dynamically stable unary patterns to create ones such for the binary case of two-components. In the one-dimensional setting, we provide also a detailed theoretical analysis of the existence and stability of these waveforms, while in higher dimensions, where such analytical computations are far more involved, we resort to corresponding numerical computations. Lastly, we perform direct numerical simulations to showcase how these structures break up, when exponentially or oscillatorily unstable, to structures with a smaller number of participating sites.
description: 11 pages, 10 figures
Electroweak Phase Transition in the $Z_3$-invariant NMSSM: Implications of LHC and Dark matter searches and prospects of detecting the gravitational waves
Creators: name: Chatterjee, Arindam
name: Datta, AseshKrishna
name: Roy, Subhojit
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study in detail the viability and the patterns of a strong first-order electroweak phase transition as a prerequisite to electroweak baryogenesis in the framework of $Z_3$-invariant Next-to-Minimal Supersymmetric Standard Model (NMSSM), in the light of recent experimental results from the Higgs sector, dark matter (DM) searches and those from the searches of the lighter chargino and neutralinos at the Large Hadron Collider (LHC). For the latter, we undertake thorough recasts of the relevant, recent LHC analyses. With the help of a few benchmark scenarios, we demonstrate that while the LHC has started to eliminate regions of the parameter space with relatively small $μ_\mathrm{eff}$, that favors the coveted strong first-order phase transition, rather steadily, there remains phenomenologically much involved and compatible regions of the same which are yet not sensitive to the current LHC analyses. It is further noted that such a region could also be compatible with all pertinent theoretical and experimental constraints. We then proceed to analyze the prospects of detecting the stochastic gravitational waves, which are expected to arise from such a phase transition, at various future/proposed experiments, within the mentioned theoretical framework and find them to be somewhat ambitious under the currently projected sensitivities of those experiments.
description: 52 pages, 3 figures, 6 tables. published version, references added
LegalVis: Exploring and Inferring Precedent Citations in Legal Documents
Creators: name: Resck, Lucas E.
name: Ponciano, Jean R.
name: Nonato, Luis Gustavo
name: Poco, Jorge
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: To reduce the number of pending cases and conflicting rulings in the Brazilian Judiciary, the National Congress amended the Constitution, allowing the Brazilian Supreme Court (STF) to create binding precedents (BPs), i.e., a set of understandings that both Executive and lower Judiciary branches must follow. The STF's justices frequently cite the 58 existing BPs in their decisions, and it is of primary relevance that judicial experts could identify and analyze such citations. To assist in this problem, we propose LegalVis, a web-based visual analytics system designed to support the analysis of legal documents that cite or could potentially cite a BP. We model the problem of identifying potential citations (i.e., non-explicit) as a classification problem. However, a simple score is not enough to explain the results; that is why we use an interpretability machine learning method to explain the reason behind each identified citation. For a compelling visual exploration of documents and BPs, LegalVis comprises three interactive visual components: the first presents an overview of the data showing temporal patterns, the second allows filtering and grouping relevant documents by topic, and the last one shows a document's text aiming to interpret the model's output by pointing out which paragraphs are likely to mention the BP, even if not explicitly specified. We evaluated our identification model and obtained an accuracy of 96%; we also made a quantitative and qualitative analysis of the results. The usefulness and effectiveness of LegalVis were evaluated through two usage scenarios and feedback from six domain experts.
description: 13 pages (paper) + 2 pages (appendix). 9 figures (paper) + 3 figures (appendix)
Dynamic Interactions among Growth, Environmental Change, Habit Formation, and Preference Change
Creators: name: Zhang, Wei-Bin
Publisher: name: International Journal of Economic Behavior
Year: 2013

description: The purpose of this study is to construct an economic growth model with environmental change and preference formation. The paper is focused on dynamic interactions among capital accumulation, environmental change, habit formation, preference change, and division of labor in perfectly competitive markets with environmental taxes on production, wealth income, wage income and consumption. The model integrated the dynamic economic mechanisms in the neoclassical growth theory, the environmental dynamics in traditional models of environmental economics, and the literature of economic growth with habit formation and within a comprehensive framework. It is showed that the motion of the economic system is given by three nonlinear autonomous differential equations. We simulate the time-invariant system. The simulation demonstrates some dynamic interactions among the economic variables which can be predicted neither by the neoclassical growth theory nor by the traditional economic models of environmental change. For instance, if the past consumption has weaker impact on the current consumption, although the long-term equilibrium of the dynamic system will not be affected, the transitional paths are shifted as follows: initially the transitional path of the stock habit becomes lower than its original path; the consumption level falls initially in association with falling in the propensity to consume; the exogenous disturbance causes the propensity to consume to fall and the propensity to save to rise; the national wealth and capital inputs of the two sectors are augmented; the labor force is shifted initially from the industrial sector to the environmental sector, but subsequently the direction is opposite before the labor distribution comes to its original equilibrium point; the wage rate is enhanced in association with falling in the rate of interest; the level of pollution falls initially, but rise subsequently; the output levels of the two sectors and the total tax income are enhanced before they come back to their original paths. Classification-JEL: H12 Keywords: Habit formation; preference change; environmental tax; pollution; economic growth.
description: International Journal of Economic Behavior, Vol 3, No 1 (2013): International Journal of Economic Behavior
MOCA-S: A Sensitive Mobile Collaborative Robotic Assistant exploiting Low-Cost Capacitive Tactile Cover and Whole-Body Control
Creators: name: Leonori, Mattia
name: Gandarias, Juan M.
name: Ajoudani, Arash
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Safety is one of the most fundamental aspects of robotics, especially when it comes to collaborative robots (cobots) that are expected to physically interact with humans. Although a large body of literature has focused on safety-related aspects for fixed-based cobots, a low effort has been put into developing collaborative mobile manipulators. In response to this need, this work presents MOCA-S, i.e., Sensitive Mobile Collaborative Robotic Assistant, that integrates a low-cost, capacitive tactile cover to measure interaction forces applied to the robot base. The tactile cover comprises a set of 11 capacitive large-area tactile sensors distributed as a 1-D tactile array around the base. Characterization of the tactile sensors with different materials is included. Moreover, two expanded whole-body controllers that exploit the platform's tactile cover and the loco-manipulation features are proposed. These controllers are tested in two experiments, demonstrating the potential of MOCA-S for safe physical Human-Robot Interaction (pHRI). Finally, an experiment is carried out in which an undesired collision occurs between MOCA-S and a human during a loco-manipulation task. The results demonstrate the intrinsic safety of MOCA-S and the proposed controllers, suggesting a new step towards creating safe mobile manipulators.
description: 8 pages, 7 figures, submitted to IEEE Robotics and Automation Letters and IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2022). Video: https://youtu.be/IX6fn8ODSt8
Global Retailers, Market-Driven Management and Innovation
Creators: name: Brondoni, Silvio M.
name: Corniani, Margherita
name: Riboldazzi, Sabina
Publisher: name: International Journal of Economic Behavior
Year: 2013

description: The globalization of markets forces large retailers to re-think their long-term development, combining corporate growth with demand satisfaction. In particular, global markets and the state of over-supply push mass retailers to adopt hard competitive policies based on market-driven management, which emphasize continuous product innovation in order to satisfy temporary demand opportunities (demand bubble). The purpose of this paper is to provide an overview of the main issues concerning market-driven innovation for global retailers. In fact, this subject, to date, is a relatively neglected element of the retailing literature. The paper is based on a review and synthesis of secondary data and published work and proposes to link together the issues concerning global retailing with market-driven innovation, offering an initial classificatory schema of activity areas where global retailers can innovate to compete in global markets. The paper concludes with an agenda for future research in this area. Classification-JEL: H12 Keywords: Global Retailers; Market-Driven Management; Retail Innovation; Demand Bubble; Over-Supply; Competitive Customer Value.
description: International Journal of Economic Behavior, Vol 3, No 1 (2013): International Journal of Economic Behavior