cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Remote sensing and machine learning for yield prediction of lowland paddy crops
Creators: name: Riza, Lala
name: Yudianita, Afina
name: Nugraha, Eki
name: Somantri, Lili
name: Sitanggang, Imas
name: Abu Samah, Khyrina
name: Nazir, Shah
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Life Sciences

description: This research exploits the technology of remote sensing and machine learning methods (i.e. Gradient Boosting Regressor) to predict the yield of lowland paddy crops. Remote sensing with a Landsat 8 satellite was used to obtain the input data in the form of the vegetation index (i.e. NDVI) value, surface temperature, and total pixels of the observed area. Afterward, the input data was arranged into training data by combining paddy yield data and the paddy harvest period. There are following datasets required in this research: (i) data containing vegetation index (i.e., NDVI), (ii) The Indonesian topographical map was used to determine the boundaries of the paddy field area in Bandung, and (iii) lowland rice yield data. The first datasets are saved in "Data NDVI with ENVI.zip" while the second one is "Data Portal Geospasial Indonesia.zip" in this OSF Storage. Then, the cleaned and processed data can be found in "Dataset Final.xlsx".
Brazilian adolescents' knowledge and beliefs about abortion methods: a school-based internet inquiry
Creators: name: Adesse, Leila
name: Halpern, Carolyn
name: Heumann, Silke
name: Mitchell, Ellen M.H.
name: Araujo, Ana
Publisher: name: BioMed Central Ltd
Year: 2014

description: Abstract: Background: Internet surveys that draw from traditionally generated samples provide the unique conditions to engage adolescents in exploration of sensitive health topics. Methods: We examined awareness of unwanted pregnancy, abortion behaviour, methods, and attitudes toward specific legal indications for abortion via a school-based internet survey among 378 adolescents aged 12–21 years in three Rio de Janeiro public schools. Results: Forty-five percent knew peers who had undergone an abortion. Most students (66.0%) did not disclose abortion method knowledge. However, girls (aOR 4.2, 95% CI 2.4-7.2), those who had experienced their sexual debut (aOR1.76, 95% CI 1.1-3.0), and those attending a prestigious magnet school (aOR 2.7 95% CI 1.4-6.3) were more likely to report methods. Most abortion methods (79.3%) reported were ineffective, obsolete, and/or unsafe. Herbs (e.g. marijuana tea), over-the-counter medications, surgical procedures, foreign objects and blunt trauma were reported. Most techniques (85.2%) were perceived to be dangerous, including methods recommended by the World Health Organization. A majority (61.4%) supported Brazil’s existing law permitting abortion in the case of rape. There was no association between gender, age, sexual debut, parental education or socioeconomic status and attitudes toward legal abortion. However, students at the magnet school supported twice as many legal indications (2.7, SE.27) suggesting a likely role of peers and/or educators in shaping abortion views. Conclusions: Abortion knowledge and attitudes are not driven simply by age, religion or class, but rather a complex interplay that includes both social spaces and gender. Prevention of abortion morbidity and mortality among adolescents requires comprehensive sexuality and reproductive health education that includes factual distinctions between safe and unsafe abortion methods.
Sustainable Energy, Water and Environmental Systems
Creators: name: Østergaard, Poul Alberg
name: Duic, Neven
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2014

description: This issue presents research results from the 8th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES - held in Dubrovnik, Croatia in 2013. Topics covered here include the energy situation in the Middle East with a focus in Cyprus and Israel, energy planning methodology with Ireland as a case and the applicability of energy scenarios modelling tools as a main focus, evaluation of energy demands in Italy and finally evaluation of underground cables vs overhead lines and lacking public acceptance of incurring additional costs for the added benefit of having transmission beyond sight.
description: International Journal of Sustainable Energy Planning and Management, Vol 3 (2014)
Local topological charge analysis of electromagnetic vortex beam based on empirical mode decomposition
Creators: name: Hui, Xiaonan
name: Zheng, Shilie
name: Zhang, Weite
name: Jin, Xiaofeng
name: Chi, Hao
name: Zhang, Xianmin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The topological charge of an electromagnetic vortex beam depends on its wavefront helicity. For mixed vortex beams composed of several different coaxial vortices, the topological charge spectrum can be obtained by Fourier transform. However, the vortex beam is generally divergent and imperfect. It makes it significant to investigate the local topological charges, especially in radio frequency regime. Fourier transform based methods are restrained by the uncertainty principle and cannot achieve high angular resolution and mode resolution simultaneously. In this letter, an analysis method for local topological charges of vortex beams is presented based on the empirical mode decomposition (EMD). From EMD, the intrinsic mode functions (IMFs) can be obtained to construct the bases of the electromagnetic wave, and each local topological charge can be respectively defined. With this method the local value achieves both high resolution of azimuth angle and topological charge, meanwhile the amplitudes of each OAM modes are presented as well. The simulation and experimental results confirm the validity of the EMD based method.
description: 10 pages with 7 figures, will submit to physical review applied
Motor coordination & Strategic cooperation in joint action
Creators: name: Le Bars, Solène
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Life Sciences
subject: Social and Behavioral Sciences
subject: game theory
subject: joint action
subject: motor coordination
subject: sense of agency
subject: strategic cooperation

description: This project includes the raw data associated to the research article entitled Motor coordination and strategic cooperation in joint action. A notebook has been created to help with data analysis.
Investigating 100% renewable energy supply at regional level using scenario analysis
Creators: name: Waenn, Annicka
name: Connolly, David
name: Ó Gallachóir, Brian
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2014

description: Energy modelling work in Ireland to date has mainly taken place at a national level. A regional modelling approach is necessary however, for Ireland to reach the ambitious targets for renewable energy and emissions reduction. This paper explores the usefulness of the energy modelling tool EnergyPLAN in investigating the energy system of the South West Region of Ireland. This paper estimates a 10.5% current renewable energy share of energy use, with 40% renewable electricity. We build and assess a reference scenario and three renewable energy scenarios from a technological and resources perspective. The results show that sufficient resources are available for the South West Region energy system to become 100% renewable and quantifies the land-use implications. Moreover, EnergyPLAN can be a useful tool in exploring different technical solutions. However, thorough investigations of as many alternatives as possible, is necessary before major investments are made in a future energy system.
description: International Journal of Sustainable Energy Planning and Management, Vol 3 (2014)
Operator (quasi-)similarity, quasi-Hermitian operators and all that
Creators: name: Antoine, Jean-Pierre
name: Trapani, Camillo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: PACS numbers: 03.65.-w, 03.65.Ca, 02.30.Sa, 02.30.Tb

description: Motivated by the recent developments of pseudo-Hermitian quantum mechanics, we analyze the structure generated by unbounded metric operators in a Hilbert space. To that effect, we consider the notions of similarity and quasi-similarity between operators and explore to what extent they preserve spectral properties. Then we study quasi-Hermitian operators, bounded or not, that is, operators that are quasi-similar to their adjoint and we discuss their application in pseudo-Hermitian quantum mechanics. Finally, we extend the analysis to operators in a partial inner product space (\pip), in particular the scale of Hilbert spaces generated by a single unbounded metric operator.
description: 16 pages. arXiv admin note: text overlap with arXiv:1409.3497, arXiv:1210.3163, arXiv:1307.5644
Predictors of opioid misuse in patients with chronic pain: a prospective cohort study
Creators: name: Potisek, Nicholas M
name: Ives, Timothy
name: Shilliday, Betsy
name: Malone, Robert M.
name: Hammett-Stabler, Catherine A
name: DeWalt, Darren A
name: Perhac, J. Stephen
name: Chelminski, Paul R.
name: Pignone, Michael
Publisher: name: BioMed Central Ltd
Year: 2006

description: Abstract Background Opioid misuse can complicate chronic pain management, and the non-medical use of opioids is a growing public health problem. The incidence and risk factors for opioid misuse in patients with chronic pain, however, have not been well characterized. We conducted a prospective cohort study to determine the one-year incidence and predictors of opioid misuse among patients enrolled in a chronic pain disease management program within an academic internal medicine practice. Methods One-hundred and ninety-six opioid-treated patients with chronic, non-cancer pain of at least three months duration were monitored for opioid misuse at pre-defined intervals. Opioid misuse was defined as: 1. Negative urine toxicological screen (UTS) for prescribed opioids; 2. UTS positive for opioids or controlled substances not prescribed by our practice; 3. Evidence of procurement of opioids from multiple providers; 4. Diversion of opioids; 5. Prescription forgery; or 6. Stimulants (cocaine or amphetamines) on UTS. Results The mean patient age was 52 years, 55% were male, and 75% were white. Sixty-two of 196 (32%) patients committed opioid misuse. Detection of cocaine or amphetamines on UTS was the most common form of misuse (40.3% of misusers). In bivariate analysis, misusers were more likely than non-misusers to be younger (48 years vs 54 years, p < 0.001), male (59.6% vs. 38%; p = 0.023), have past alcohol abuse (44% vs 23%; p = 0.004), past cocaine abuse (68% vs 21%; p < 0.001), or have a previous drug or DUI conviction (40% vs 11%; p < 0.001%). In multivariate analyses, age, past cocaine abuse (OR, 4.3), drug or DUI conviction (OR, 2.6), and a past alcohol abuse (OR, 2.6) persisted as predictors of misuse. Race, income, education, depression score, disability score, pain score, and literacy were not associated with misuse. No relationship between pain scores and misuse emerged. Conclusion Opioid misuse occurred frequently in chronic pain patients in a pain management program within an academic primary care practice. Patients with a history of alcohol or cocaine abuse and alcohol or drug related convictions should be carefully evaluated and followed for signs of misuse if opioids are prescribed. Structured monitoring for opioid misuse can potentially ensure the appropriate use of opioids in chronic pain management and mitigate adverse public health effects of diversion.
Electronic supplementary data from The response of coral skeletal nano structure and hardness to ocean acidification conditions
Creators: name: Tan, Chao Dun
name: Hähner, Georg
name: Fitzer, Susan
name: Cole, Catherine
name: Finch, Adrian A.
name: Hintz, Chris
name: Hintz, Ken
name: Allison, Nicola
Publisher: name: The Royal Society
Year: 2023
Subjects: Environmental Science

description: Raw data for figures 3, 7 and 8. r2 between adhesion and either sample height or roughness in Figures 5 and 6. Images of sample indents.
ESRF-type lattice design and optimization for the High Energy Photon Source
Creators: name: Xu, Gang
name: Jiao, Yi
name: Peng, Yue-Mei
Publisher: name: arXiv
Year: 2015
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: A new generation of storage ring-based light source, called diffraction-limited storage ring (DLSR), with emittance approaching the diffraction limit for multi-keV photons by means of multi-bend achromat lattice, has attracted worldwide and extensive studies. Among various DLSR proposals, the hybrid multi-bend achromat concept developed at ESRF predicts an effective way of minimizing the emittance and meanwhile keeping the required sextupole strengths to an achievable level. For the High Energy Photon Source planned to be built in Beijing, an ESRF-type lattice design consisting of 48 hybrid seven-bend achromats is proposed to reach emittance as low as 60 pm.rad with a circumference of about 1296 m. Sufficient dynamic aperture promising vertical on-axis injection and moderate momentum acceptance are achieved simultaneously for a promising ring performance.
description: 8 pages, 6 figures, submitted to Chinese Physics C
Knowing electricity end-uses to successfully promote energy efficiency in buildings: a case study in low-income houses in Southern Brazil
Creators: name: Silva, Arthur Santos
name: Luiz, Fernando
name: Mansur, Ana Carolina
name: Vieira, Abel Silva
name: Schaefer, Aline
name: Ghisi, Enedir
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2014

description: The objective of this paper is to show the importance of measuring electricity end-uses in order to promote energy efficiency in low-income houses in Southern Brazil. Sixty low-income houses were surveyed, and data of socioeconomic variables, electricity use, and usage pattern were measured and obtained. Confidence intervals were assigned to obtain representative electricity end-uses and usage patterns. The results showed that the electric shower has the greatest electricity end-use, i.e., 33.5 to 40.3%, followed by the refrigerators, with end-use of 27.4 to 33.1% with 90% non-parametric confidence interval. Usage patterns were obtained for appliances and lighting for each room and also for the electric shower. The results of this study will provide basis for determination of guidelines for low-income houses and government programmes for energy efficiency, rational use of energy and renewable energy.
description: International Journal of Sustainable Energy Planning and Management, Vol 2 (2014)
Sub-arcsec mid-IR observations of NGC 1614: Nuclear star-formation or an intrinsically X-ray weak AGN?
Creators: name: Pereira-Santaella, M.
name: Colina, L.
name: Alonso-Herrero, A.
name: Usero, A.
name: Díaz-Santos, T.
name: García-Burillo, S.
name: Alberdi, A.
name: Gonzalez-Martin, O.
name: Herrero-Illana, R.
name: Imanishi, M.
name: Levenson, N. A.
name: Pérez-Torres, M. A.
name: Almeida, C. Ramos
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present new mid-infrared N-band spectroscopy and Q-band photometry of the local luminous infrared galaxy NGC1614, one of the most extreme nearby starbursts. We analyze the mid-IR properties of the nucleus (central 150 pc) and four regions of the bright circumnuclear (diameter~600 pc) star-forming (SF) ring of this object. The nucleus differs from the circumnuclear SF ring by having a strong 8-12 micron continuum (low 11.3 micron PAH equivalent width). These characteristics, together with the nuclear X-ray and sub-mm properties, can be explained by an X-ray weak active galactic nucleus (AGN), or by peculiar SF with a short molecular gas depletion time and producing an enhanced radiation field density. In either case, the nuclear luminosity (L(IR) < 6e43 erg/s) is only <5% of the total bolometric luminosity of NGC1614. So this possible AGN does not dominate the energy output in this object. We also compare three star-formation rate (SFR) tracers (Pa$α$, 11.3 micron PAH, and 24 micron emissions) at 150 pc scales in the circumnuclear ring. In general, we find that the SFR is underestimated (overestimated) by a factor of 2-4 (2-3) using the 11.3 micron PAH (24 micron) emission with respect to the extinction corrected Pa$α$ SFR. The former can be explained because we do not include diffuse PAH emission in our measurements, while the latter might indicate that the dust temperature is particularly warmer in the central regions of NGC1614.
description: Accepted for publication in MNRAS; 10 pages, 5 figures
Ethical and regulatory aspects regarding xenotransplantation
Creators: name: Kwisda, Koko Reyna
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2023
Subjects: subject: xenotransplantation
subject: genetically modified organisms
subject: biotechnology
subject: chimeras
subject: bioethics
subject: Xenotransplantation
subject: Bioethik
subject: Chimären
subject: Biotechnologie
subject: genetisch modifizierte Organismen
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: Organtransplantationen stellen mittlerweile einen standardisierten medizinischen Eingriff dar. Dennoch fehlen weltweit passende Spenderorgane. Daher sind Tiere, insbesondere das Schwein, als potentielle Organspender von besonderem Interesse. Für die Generierung eines immunkompatiblen, porzinen Spenderorgans werden prinzipiell zwei Strategien verfolgt: entweder bringt man induzierte pluripotente Stammzellen des menschlichen Rezipienten, welche dann das zu spendende Organ ausmachen, in ein genetisch editiertes Schwein ein. Hierbei nutzt man das Schwein als Bioreaktor für das aus menschlichen Zellen bestehende, wachsende Organ und stellt im Zuge dessen eine Mensch- Tier-Chimäre her. Andererseits kann man das porzine Genom stark genetisch verändern und so ein multitransgenes Schwein erzeugen, dessen Organe kompatibel mit dem menschlichen Immunsystem sind. Neue Technologien werden oft von heftigen Debatten bezüglich ihrer ethischen Implikationen begleitet. Diese Debatten fokussieren sich häufig auf die aufsehenerregendsten Aspekte und verhindern dadurch eine holistische Betrachtungsweise. Überdies werden selten im Vorhinein spezifische Gesetze für neue Technologien verabschiedet. Dieses Manuskript schafft die Grundlage für die weiterführende ethische und rechtliche Debatte hinsichtlich Xenotransplantation: einerseits werden die ethischen Herausforderungen bei Mensch-Tier-Chimären systematisch evaluiert, was hoffentlich eine weitere Fragmentierung der Debatte verhindert. Überdies zeigt die Herausarbeitung der normativen Aspekte im Zusammenhang mit chimärischen und/oder multitransgenen Schweinen sowie auch die Identifizierung von spezifischen, unbeantworteten regulatorischen Fragen in diesem Bereich, dass die existierende Rechtslage nicht alle assoziierten Probleme adressiert. Diese Doktorarbeit schafft daher die Basis für die Vereinheitlichung der ethischen Debatte und lenkt auch die regulatorische Diskussion auf spezifische ungelöste Probleme. Dies wird hoffentlich die Harmonisierung der internationalen Regulierung von Xenotransplantation erleichtern.
A Risk Analysis of Small-Hydro Power (SHP) Plants Investments
Creators: name: Cunha, Jorge
name: Ferreira, Paula Varandas
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2014

description: The increase in electricity consumption has led to a sharp increase in energy demand which rose environmental and sustainability concerns. To address this issue, there has been an incentive to resource to renewable energy sources for electricity production. Departing from a real case study, the investment appraisal of a SHP project under the present market conditions is described, followed by a sensitivity analysis in order to identify the main sources of risk. The main results obtained showed that in the context of a regulated tariff the project is worthwhile due to a positive NPV. However, if electricity had to be sold at market prices, the project becomes unprofitable. Theresults put also in evidence the vulnerability of the investment to an adverse change in interest rates. Future SHP plant investments should take into account the need to operate in a free market and to compete with technologies based on fossil fuels or large hydro.
description: International Journal of Sustainable Energy Planning and Management, Vol 2 (2014)
Energy Security prospects in Cyprus and Israel: A focus on Natural Gas
Creators: name: Taliotis, Constantinos
name: Howells, Mark
name: Bazilian, Morgan
name: Rogner, Holger
name: Welsch, Manuel
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2014

description: The global production of natural gas has increased from 1226 bcm in 1973 to 3282 bcm in 2010 and is projected to continue rising by an annual growth rate of 1.6% between 2010 to 2035. Cyprus and Israel have recently made major offshore discoveries of natural gas, which can supply to a great extent the two countries’ current domestic energy needs for the next few decades and still export a substantial volume. MESSAGE, a global optimization model was used to explore the possible interactions between the two countries’ energy systems. Scenarios are presented that assess the export potential for electricity (generated by gas-fired power plants), liquefied natural gas (LNG) or gas-to-liquid products (GTL). The results are compared to a scenario without any available reserves to illustrate the financial benefits that will arise from the exploitation of the gas resources in the two countries.
description: International Journal of Sustainable Energy Planning and Management, Vol 3 (2014)
Underground cables versus overhead lines: Do cables increase social acceptance of grid development? Results of a Contingent Valuation survey in Germany
Creators: name: Menges, Roland
name: Beyer, Gregor
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2014

description: Transmission network development plans have led to protests throughout Germany. Many studies present underground cables as a means to increase public agreement to transmission line construction. This paper investigates this thesis reporting results of a Contingent Valuation study conducted in late 2012 in four regions of Germany, which are affected by transmission line development in different ways. In an analysis of 1.003 household responses a majority of households favours underground cables (about 60%). Willingness-to-pay, however, relativizes this result. Almost 50% of households voting for underground cables are not willing to accept an increase in electricity prices to finance cable projects (free riders). The fact that positive willingness-to-pay does not correlate positively with increasing lengths of underground cables in 60% of cases underlines that cables are not supported unconditionally. All-in-all, the thesis that cables increase acceptance of grid development has to be rejected based on the WTP-evaluation presented in this paper.
description: International Journal of Sustainable Energy Planning and Management, Vol 3 (2014)
SDO
Creators: name: Khalaila, Manar
name: Tellawi, Deema
name: khalaily, sama
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: זוהי הרשמה מראש למחקר שלנו המתמקד בהשפעת האינטראקציה הבין-חברתית על ערך האוריינטציה הדומיננטית החברתית, במסגרת קורס פסיכולוגיה ניסויית באוניברסיטת תל אביב.
On the “cost-optimal levels” of energy performance requirements and its economic evaluation in Italy
Creators: name: Tronchin, Lamberto
name: Tommasino, Maria Cristina
name: Fabbri, Kristian
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2014

description: The European energy policies about climate and energy package, known as the “20-20-20” targets define ambitious, but achievable, national energy objectives. Among the directives of the package, the Directive 2010/31/UE on the energy performance of building reports: “Member States shall calculate cost-optimal levels of minimum energy performance requirements using the comparative methodology framework established in accordance with paragraph 1 and relevant parameters, such as climatic conditions and the practical accessibility of energy infrastructure, and compare the results of this calculation with the minimum energy performance requirements in force”. The “Commission delegated regulation (EU)” n.244/2012 and “Guidelines accompanying Commission Delegated Regulation (EU) n.244/2012” 2012/C 115/01 define a comparative methodology framework for calculating cost-optimal levels of minimum energy performance requirements for buildings and building elements to apply at “Reference Building” for EU State Member. The aims of Cost-Optimal Level are to supply EU Member States in order to define the national energy requirements level, which are economically feasible, that could reduce energy consumption until 2020. The Italian regulation framework has two levels of measurements: one national and on regional , but all Energy Performance of Building Simulations EPBS must be calculated with standard UNITS 11300, which represent the Italian transposition of European and CEN Standard EN 15615 (CEN Umbrella). Following Italian legislation, the EPBS have to be calculated with UNITS 11300 standard procedure. The energy building behaviour is referred to standard and not to real use, nor climate or dynamic energy evaluation. Following this procedure, the energy cost depends on several conditions and most of them are not indexed at national level. In the other hand cost of improvement depends on local variable ad contract tender. In this paper a case study is described and the Cost-Optimal Level EU procedure in an Italian context is analysed, in order to highlight the difficulties to apply EU rules.
description: International Journal of Sustainable Energy Planning and Management, Vol 3 (2014)
Success vs Failure of Project MarComms = 1 Call Away
Creators: name: Psarianou, Artemis
Publisher: name: Zenodo
Year: 2023
Subjects: HellasQCI
EuroCC-Greece
communication
GRNET

description: This presentation was delivered at the SIG-marcomms Autumn online meeting on October 5, 2023. In the presentation: Tips on stakeholders’ engagement in successful marcomms strategy and execution. Insightful examples of HellasQCIand EuroCC-Greece projects.
Spacetime Curvature in terms of Scalar Field Propagators
Creators: name: Saravani, Mehdi
name: Aslanbeigi, Siavash
name: Kempf, Achim
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show how quantum fields can be used to measure the curvature of spacetime. In particular, we find that knowledge of the imprint that spacetime curvature leaves in the correlators of quantum fields suffices, in principle, to reconstruct the metric. We then consider the possibility that the quantum fields obey a natural ultraviolet cutoff, for example, at the Planck scale. We investigate how such a cutoff limits the spatial resolution with which curvature can be deduced from the properties of quantum fields. We find that the metric deduced from the quantum correlator exhibits a peculiar scaling behavior as the scale of the natural UV cutoff is approached.
Statistical power as a function of Cronbach alpha of instrument questionnaire items
Creators: name: Faith, Myles S
Publisher: name: BioMed Central
Year: 2015

description: Abstract Background In countless number of clinical trials, measurements of outcomes rely on instrument questionnaire items which however often suffer measurement error problems which in turn affect statistical power of study designs. The Cronbach alpha or coefficient alpha, here denoted by C α , can be used as a measure of internal consistency of parallel instrument items that are developed to measure a target unidimensional outcome construct. Scale score for the target construct is often represented by the sum of the item scores. However, power functions based on C α have been lacking for various study designs. Methods We formulate a statistical model for parallel items to derive power functions as a function of C α under several study designs. To this end, we assume fixed true score variance assumption as opposed to usual fixed total variance assumption. That assumption is critical and practically relevant to show that smaller measurement errors are inversely associated with higher inter-item correlations, and thus that greater C α is associated with greater statistical power. We compare the derived theoretical statistical power with empirical power obtained through Monte Carlo simulations for the following comparisons: one-sample comparison of pre- and post-treatment mean differences, two-sample comparison of pre-post mean differences between groups, and two-sample comparison of mean differences between groups. Results It is shown that C α is the same as a test-retest correlation of the scale scores of parallel items, which enables testing significance of C α . Closed-form power functions and samples size determination formulas are derived in terms of C α , for all of the aforementioned comparisons. Power functions are shown to be an increasing function of C α , regardless of comparison of interest. The derived power functions are well validated by simulation studies that show that the magnitudes of theoretical power are virtually identical to those of the empirical power. Conclusion Regardless of research designs or settings, in order to increase statistical power, development and use of instruments with greater C α , or equivalently with greater inter-item correlations, is crucial for trials that intend to use questionnaire items for measuring research outcomes. Discussion Further development of the power functions for binary or ordinal item scores and under more general item correlation strutures reflecting more real world situations would be a valuable future study.
Distinct neural bases of disruptive behavior and autism symptom severity in boys with autism spectrum disorder
Creators: name: Dayan, Eran
Publisher: name: BioMed Central
Year: 2017

description: Abstract Background Disruptive behavior in autism spectrum disorder (ASD) is an important clinical problem, but its neural basis remains poorly understood. The current research aims to better understand the neural underpinnings of disruptive behavior in ASD, while addressing whether the neural basis is shared with or separable from that of core ASD symptoms. Methods Participants consisted of 48 male children and adolescents: 31 ASD (7 had high disruptive behavior) and 17 typically developing (TD) controls, well-matched on sex, age, and IQ. For ASD participants, autism symptom severity, disruptive behavior, anxiety symptoms, and ADHD symptoms were measured. All participants were scanned while viewing biological motion (BIO) and scrambled motion (SCR). Two fMRI contrasts were analyzed: social perception (BIO > SCR) and Default Mode Network (DMN) deactivation (fixation > BIO). Age and IQ were included as covariates of no interest in all analyses. Results First, the between-group analyses on BIO > SCR showed that ASD is characterized by hypoactivation in the social perception circuitry, and ASD with high or low disruptive behavior exhibited similar patterns of hypoactivation. Second, the between-group analyses on fixation > BIO showed that ASD with high disruptive behavior exhibited more restricted and less DMN deactivation, when compared to ASD with low disruptive behavior or TD. Third, the within-ASD analyses showed that (a) autism symptom severity (but not disruptive behavior) was uniquely associated with less activation in the social perception regions including the posterior superior temporal sulcus and inferior frontal gyrus; (b) disruptive behavior (but not autism symptom severity) was uniquely associated with less DMN deactivation in the medial prefrontal cortex (MPFC) and lateral parietal cortex; and (c) anxiety symptoms mediated the link between disruptive behavior and less DMN deactivation in both anterior cingulate cortex (ACC) and MPFC, while ADHD symptoms mediated the link primarily in ACC. Conclusions In boys with ASD, disruptive behavior has a neural basis in reduced DMN deactivation, which is distinct and separable from that of core ASD symptoms, with the latter characterized by hypoactivation in the social perception circuitry. These differential neurobiological markers may potentially serve as neural targets or predictors for interventions when treating disruptive behavior vs. core symptoms in ASD.
Spectral representation for u- and t-channel exchange processes in a partial-wave decomposition
Creators: name: Lutz, M. F. M.
name: Kolomeitsev, E. E.
name: Korpa, C. L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the analytic structure of partial-wave amplitudes derived from u- and t-channel exchange processes. The latter plays a crucial role in dispersion-theory approaches to coupled-channel systems that model final state interactions in QCD. A general spectral representation is established that is valid in the presence of anomalous thresholds, decaying particles or overlapping left-hand and right-hand cut structures as it occurs frequently in hadron physics. The results are exemplified at hand of ten specific processes.
description: 35 pages, 7 figures
Near-Optimal Signal Detector Based on Structured Compressive Sensing for Massive SM-MIMO
Creators: name: Gao, Zhen
name: Dai, Linglong
name: Qi, Chenhao
name: Yuen, Chau
name: Wang, Zhaocheng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Massive spatial modulation (SM)-MIMO, which employs massive low-cost antennas but few power-hungry transmit radio frequency (RF) chains at the transmitter, is recently proposed to provide both high spectrum efficiency and energy efficiency for future green communications. However, in massive SM-MIMO, the optimal maximum likelihood (ML) detector has the prohibitively high complexity, while state-of-the-art low-complexity detectors for conventional small-scale SM-MIMO suffer from an obvious performance loss. In this paper, by exploiting the structured sparsity of multiple SM signals, we propose a low-complexity signal detector based on structured compressive sensing (SCS) to improve the signal detection performance. Specifically, we first propose the grouped transmission scheme at the transmitter, where multiple SM signals in several continuous time slots are grouped to carry the common spatial constellation symbol to introduce the desired structured sparsity. Accordingly, a structured subspace pursuit (SSP) algorithm is proposed at the receiver to jointly detect multiple SM signals by leveraging the structured sparsity. In addition, we also propose the SM signal interleaving to permute SM signals in the same transmission group, whereby the channel diversity can be exploited to further improve the signal detection performance. Theoretical analysis quantifies the performance gain from SM signal interleaving, and simulation results demonstrate the near-optimal performance of the proposed scheme.
description: 8 pages 7 figures, accepted by IEEE Transactions on Vehicular Technology. Keywords: Spatial modulation (SM), massive MIMO, signal detection, compressive sensing (CS), signal interleaving
MPEC 2024-C15 : 2024 BA5
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 BA5

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Personality and online behavior
Creators: name: Hjelm, Fredrik
Publisher: name: Open Science Framework
Year: 2022

description: Personality as an explanatory variable in decision-making has a disputed reputation. Some say that knowing a person's personality, you can affect which party he will vote for, but other (especially in market communications) say it has low explanatory value. We investigate whether personality, using the OCEAN model, influences how people behave online.
Origin of anomalous anharmonic lattice dynamics of lead telluride
Creators: name: Shiga, Takuma
name: Murakami, Takuru
name: Hori, Takuma
name: Delaire, Olivier
name: Shiomi, Junichiro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The origin of the anomalous anharmonic lattice dynamics of lead telluride is investigated using molecular dynamics simulations with interatomic force constants (IFCs) up to quartic terms obtained from first principles. The calculations reproduce the peak asymmetry of the radial distribution functions and the double peaks of transverse optical phonon previously observed with neutron diffraction and scattering experiments. They are identified to be due to the extremely large nearest-neighbor cubic IFCs in the [100] direction. The outstanding strength of the nearest-neighbor cubic IFCs relative to the longer-range ones explains the reason why the distortion in the radial distribution function is local.
Clustering Travel/Leisure Personalities based on Big Five Personality Traits and Social Footprint
Creators: name: Borchkhadze, Levan
name: Bonifetto, Franco
name: Gonzalez, Roman
Publisher: name: Open Science Framework
Year: 2022

description: The scope of the research is to define different groups of travel/leisure personalities by clustering the results of their big 5 personality indices and labeling those clusters based on user’s social network footprints, through the use of machine learning algorithms. Based on previous studies, which corroborate that personality is significantly related to leisure preferences, we predict that Facebook likes, status updates, demographic details and IQ scores play a key role to explain these clusters
Analysis of gene expression profiles in HeLa cells in response to overexpression or siRNA-mediated depletion of NASP
Creators: name: Richardson, Richard T
name: Alekseev, Oleg M
name: Alekseev, Oleg M
name: O'Rand, Michael G
Publisher: name: BioMed Central Ltd
Year: 2009

description: Abstract Background NASP (Nuclear Autoantigenic Sperm Protein) is a linker histone chaperone required for normal cell division. Changes in NASP expression significantly affect cell growth and development; loss of gene function results in embryonic lethality. However, the mechanism by which NASP exerts its effects in the cell cycle is not understood. To understand the pathways and networks that may involve NASP function, we evaluated gene expression in HeLa cells in which NASP was either overexpressed or depleted by siRNA. Methods Total RNA from HeLa cells overexpressing NASP or depleted of NASP by siRNA treatment was converted to cRNA with incorporation of Cy5-CTP (experimental samples), or Cy3-CTP (control samples). The labeled cRNA samples were hybridized to whole human genome microarrays (Agilent Technologies, Wilmington, Delaware, USA). Various gene expression analysis techniques were employed: Significance Analysis of Microarrays (SAM), Expression Analysis Systematic Explorer (EASE), and Ingenuity Pathways Analysis (IPA). Results From approximately 36 thousand genes present in a total human genome microarray, we identified a set of 47 up-regulated and 7 down-regulated genes as a result of NASP overexpression. Similarly we identified a set of 56 up-regulated and 71 down-regulated genes as a result of NASP siRNA treatment. Gene ontology, molecular network and canonical pathway analysis of NASP overexpression demonstrated that the most significant changes were in proteins participating in organismal injury, immune response, and cellular growth and cancer pathways (major "hubs": TNF, FOS, EGR1, NFκB, IRF7, STAT1, IL6). Depletion of NASP elicited the changed expression of proteins involved in DNA replication, repair and development, followed by reproductive system disease, and cancer and cell cycle pathways (major "hubs": E2F8, TP53, FGF, FSH, FST, hCG, NFκB, TRAF6). Conclusion This study has demonstrated that NASP belongs to a network of genes and gene functions that are critical for cell survival. We have confirmed the previously reported interactions between NASP and HSP90, HSP70, histone H1, histone H3, and TRAF6. Overexpression and depletion of NASP identified overlapping networks that included TNF as a core protein, confirming that both high and low levels of NASP are detrimental to cell cycle progression. Networks with cancer-related functions had the highest significance, however reproductive networks containing follistatin and FSH were also significantly affected, which confirmed NASP's important role in reproductive tissues. This study revealed that, despite some overlap, each response was associated with a unique gene signature and placed NASP in important cell regulatory networks.
The Mid-Infrared Instrument for the James Webb Space Telescope, VIII: The MIRI Focal Plane System
Creators: name: Ressler, M. E.
name: Sukhatme, K. G.
name: Franklin, B. R.
name: Mahoney, J. C.
name: Thelen, M. P.
name: Bouchet, P.
name: Colbert, J. W.
name: Cracraft, Misty
name: Dicken, D.
name: Gastaud, R.
name: Goodson, G. B.
name: Eccleston, Paul
name: Moreau, V.
name: Rieke, G. H.
name: Schneider, Analyn
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We describe the layout and unique features of the focal plane system for MIRI. We begin with the detector array and its readout integrated circuit (combining the amplifier unit cells and the multiplexer), the electronics, and the steps by which the data collection is controlled and the output signals are digitized and delivered to the JWST spacecraft electronics system. We then discuss the operation of this MIRI data system, including detector readout patterns, operation of subarrays, and data formats. Finally, we summarize the performance of the system, including remaining anomalies that need to be corrected in the data pipeline.
METAL METHYLATION IN ESTUARINE WATERS
Creators: name: WALTON, ANDREW PAUL
Publisher: name: University of Plymouth
Year: 1986

description: Metal methylation has been studied in estiiarine waters by directly coupled GC-AAS/llquid nitrogen trapped hydride generation systems and determined accurately. Surveys were carried out in the estuaries of the River Tamar, Camon and Beaulieu (S. England) over a seasonal cycle. Methylated forms of Fb were only observed in rain, drain and estuarine water samples collected in the Tamar. In estuarine waters (GH«)«Fb*'' (<2-10 ng Fb 1"^) was the predominant methylated Fb species. Monomethylarsenic and dimethylarsenic species were observed in the water column in a ll3 estuaries studied. In the Tamar, Beaulieu and Carnon concentrations of methylated As species were similar with concentrations ranging from <0.02-0.7 pg As 1"^. In Tamar porewaters concentrations of methylated As species ranged from< 0.02-0.7 As 1"-^. Methylated forms of Se {Se(CH^)^, 0.5ug Se l"""-) were detected on an occasion in the Carnon. Modelling studies on Pb methylation suggest that conversion of trimethyllead acetate to Ti-IL proceeds by a chemical sulphide-mediated pathway (maximum 2.8% conversion occurred for a biological sediment system). Methylation of inorganic Pb ( H ) salts was not reproducible (maximum conversion of 0,OZQ% for PbGl^) but when observed a biologically mediated methylation process was invoked. From laboratory modelling studies temporal variations in As speciation observed in the Tamar were attributed to seasonal contributions of methylated As species from 3 sources: (i) macro-algae; ( ii ) diatoms; ( iii ) porewaters. The predominance of dimethylarsenic species over monomethylarsenic species in summer reflects the importance of plankton sources. In winter a transition takes place where the predominance of methylated As species occur and concentrations of monomethylarsenic species exceeds that of dimethylarsenic species. This transition is attributed to the increased importance of the porewater source in winter. The significance of metal methylation in the cycling of Pb, As and Se in estuarine waters appears to follow the order Asj>Se>^Fb. The biomethylation of As being highly significant in the transportation of As in the environment.
Reverberation Mapping of the Broad Line Region: application to a hydrodynamical line-driven disk wind solution
Creators: name: Waters, Tim
name: Kashi, Amit
name: Proga, Daniel
name: Eracleous, Michael
name: Barth, Aaron J.
name: Greene, Jenny
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The latest analysis efforts in reverberation mapping are beginning to allow reconstruction of echo images (or velocity-delay maps) that encode information about the structure and kinematics of the broad line region (BLR) in active galactic nuclei (AGNs). Such maps can constrain sophisticated physical models for the BLR. The physical picture of the BLR is often theorized to be a photoionized wind launched from the AGN accretion disk. Previously we showed that the line-driven disk wind solution found in an earlier simulation by Proga and Kallman is virialized over a large distance from the disk. This finding implies that, according to this model, black hole masses can be reliably estimated through reverberation mapping techniques. However, predictions of echo images expected from line-driven disk winds are not available. Here, after presenting the necessary radiative transfer methodology, we carry out the first calculations of such predictions. We find that the echo images are quite similar to other virialized BLR models such as randomly orbiting clouds and thin Keplerian disks. We conduct a parameter survey exploring how echo images, line profiles, and transfer functions depend on both the inclination angle and the line opacity. We find that the line profiles are almost always single peaked, while transfer functions tend to have tails extending to large time delays. The outflow, despite being primarily equatorially directed, causes an appreciable blue-shifted excess on both the echo image and line profile when seen from lower inclinations ($i \lesssim 45^\circ$). This effect may be observable in low ionization lines such as $\rm{H}β$.
description: Accepted version (ApJ): added Sec 4.5; improved Sec 2.2