cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Photophysics of Deep Blue Acridane- and Benzonitrile-Based Emitter Employing Thermally Activated Delayed Fluorescence
Creators: name: Drigo, Nikita A.
name: Kudriashova, Liudmila G.
name: Weissenseel, Sebastian
name: Sperlich, Andreas
name: Huckaba, Aron Joel
name: Nazeeruddin, Mohammad Khaja
name: Dyakonov, Vladimir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We designed and synthesized a new organic light-emitting diode (OLED) emitter, SBABz4, containing spiro-biacridine donor (D) in the core surrounded by two benzonitrile acceptors (A). The dual A-DxD-A structure is shown to provide pure-blue emission in relation to its single A-D counterpart. Time-resolved photoluminescence (TRPL) recorded in the broad dynamic range from solutions and solid films revealed three emission components: prompt fluorescence, phosphorescence, and efficient thermally-activated delayed fluorescence (TADF). The latter is independently proven by temperature-dependent TRPL and oxygen-quenching PL experiment. From the PL lifetimes and quantum yield, we estimated maximum external quantum efficiency of 7.1% in SBABz4-based OLEDs, and demonstrated 6.8% in a working device.
description: 19 pages, 5 figures
WHAT ARE THE EFFECTIVE PATHWAYS TO IMPROVE PATIENT SAFETY CULTURE IN NURSES?
Creators: name: Surianti
name: Andi Zulkifli
name: Andi Indahwaty AS
name: Fridawaty Rivai
name: Herlina A Hamzah
name: Sangkala
Publisher: name: Zenodo
Year: 2024
Subjects: Structural; Empowerment; Leadership; Transformational; Job Satisfaction.

description: Abstract

Background: Approximately 1 in every 10 patients is injured in healthcare and more than 3 million deaths occur each year due to unsafe care. Recent data shows that patient injury is the 14th leading cause of morbidity and mortality worldwide. The importance of patient safety and the development of a safety culture to protect patients from harm are gradually gaining attention in quality improvement efforts. To improve patient safety, hospitals are increasingly realizing the importance of establishing a patient safety culture. Objective: This study aims to determine the effect of structural empowerment, transformational leadership and job satisfaction on patient safety culture in nurses at Lamaddukkelleng Hospital, Wajo Regency. Methods: This study was conducted at Lamaddukkelleng Hospital, Wajo Regency using Cross Sectional design in quantitative research. The number of respondents was 217 nurses. Exhaustive sampling was used to obtain the sample. Data were analyzed using SPSS software for descriptive statistics and Amos software to test the hypothesized model. Results: Univariate analysis obtained patient safety culture 70.86% (moderate). The results of bivariate analysis using Chi-Square showed that (ρ value <0.05) means that there is a relationship between structural empowerment, transformational leadership style, and nurse job satisfaction on patient safety culture. The multivariate path analysis showed that the coefficient value of the direct effect of structural empowerment was (β=-0.092), transformational leadership style was (β=-0.014), and nurses' job satisfaction was (β=0.234) on patient safety culture. Furthermore, the direct effect of structural empowerment (β=0.384) and transformational leadership style (β=0.296) on nurses' job satisfaction. The indirect effect of structural empowerment (β=0.069) and transformational leadership style (β=0.090) on patient safety culture through nurse job satisfaction. Conclusion: The direct effect pathway of job satisfaction is an effective model for improving patient safety culture in nurses. This study emphasizes that hospitals should examine factors that can increase nurses' job satisfaction including through the implementation of structural empowerment and transformational leadership style of the head of the room. High job satisfaction can contribute greatly to improving patient safety culture.
Isolation and functional properties of protein from the whey of acid-modified gluten
Creators: name: Dosanjh, Bakhshish S.
Publisher: name: University of British Columbia
Year: 2010

description: Insolubility of gluten in water and salt solutions limits its utilization in the food industry. To overcome this difficulty, gluten can be solubilized by mild acid treatment (47). Gluten in 0.02 N HCl was heated at 120°C for 30 minutes and water soluble protein fraction was precipitated at pH 4.7. The remaining whey possessed about 9% of the original protein in the gluten. Experiments were carried out to isolate the protein from whey and to assess its functional properties. Upon adjusting the whey to pH 1.0, about 44% of total N was precipitated, but the yield was increased to 74% by heating the acidified whey to 90°C for 10 minutes. The addition of ferric chloride (45 mg FeCl₃·6H₂0 per litre of whey with 0.4% protein) to the acidified whey before heating increased the yield to about 84%. Hexametaphosphate (HMP) (128 mg sodium hexametaphosphate per litre of whey) reduced the brown colour of the Fe-containing precipitate. Elution of HMP-Fe-protein through Sephadex G-200 column using 0.1 M phosphate buffer revealed four distinct peaks. Molecular weights of peaks were calculated to be (I) > 100,000, (II) 62,000, (III) 29,000 and (IV) < 10,000. Ash content of final product was high (8.8%) due to use of sodium hydroxide for neutralization. /Amino acid analysis showed significantly lower amount of lysine in HMP-Fe-protein compared to unhydrolyzed gluten. Ninety-nine point two percent N in HMP-Fe-protein was water soluble and had excellent emulsifying capacity. Foamability was poor but improved greatly when lowered to pH 5.0 before whipping. Isoelectric precipitates at pH 6.2 and pH 8.2 were also collected from the whey. Another sample was prepared by ultrafiltration of the supernatant after precipitation at pH 8.2. These three samples were compared with HMP-Fe-protein complex. The yield of all the three samples was lower but functional properties were equal to or better as compared to HMP-Fe-protein. The amino acid balance was significantly better in these samples.
BENEFIT-COST RATIO OF OPEN SPACE PRESERVATION FOR THE CAUSE OF ENVIRONMENT & TOURISM DEVELOPMENT IN AN INDIAN CITY
Creators: name: Chaudhry, Pradeep
Publisher: name: tourismos
Year: 2012

description: Governments in developing countries, generally, convert open spaces meant for greenery or some recreation project, to concrete forest for revenue maximization. In this way, long term gains of preserving such spaces for the benefits of residents or tourists are ignored. Nek Chand’s Rock Garden in the Chandigarh city of India is an environmental education spot visited by millions of tourists each year. City administration considered this project as violation of city’s master plan in the beginning but later on agreed to maintain this monument. Annual tourism value of this spot is very handsome but amount spent by city administration on its maintenance and expansion is still not adequate. Need for maintaining this important site by way of high benefit cost ratio (B/C ratio) has been emphasized in the article.
description: tourismos, Vol. 7 No. 1 (2012)
Evidence for Oxygen Holes due to d-p Rehybridization in Thermoelectric Sr_{1-x}Rh_{2}O_{4}
Creators: name: Ishida, Y.
name: Baba, T.
name: Eguchi, R.
name: Matsunami, M.
name: Taguchi, M.
name: Chainani, A.
name: Senba, Y.
name: Ohashi, H.
name: Okamoto, Y.
name: Takagi, H.
name: Shin, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Soft-x-ray photoemission and absorption spectroscopies are employed to investigate the electronic structures of Sr_{1-x}Rh_{2}O_{4}. Similarly to the layered cobaltates such as Na_{1-x}CoO_{2}, a valence-band satellite feature (VBS) occurs at higher binding energy to the O 2p band. We find that the VBS resonates at the O 1s edge. Additionally, core absorption shows clear x dependence in the O 1s edge rather than in the Rh 3p edge. These results indicate that the holes in the initial state mainly have O 2p character presumably due to d-p rehybridizations affected by Sr^{2+} vacancy potentials. The resultant inhomogenous charge texture may have impact on the TE transport properties at low x.
VERITAS observations of the BL Lac 1ES 1218+304
Creators: name: VERITAS Collaboration
name: Acciari, V. A.
name: Aliu, E.
name: Arlen, T.
name: Beilicke, M.
name: Benbow, W.
name: Bradbury, S. M.
name: Buckley, J. H.
name: Bugaev, V.
name: Butt, Y.
name: Byrum, K. L.
name: Celik, O.
name: Cesarini, A.
name: Ciupik, L.
name: Chow, Y. C. K.
name: Cogan, P.
name: Colin, P.
name: Cui, W.
name: Daniel, M. K.
name: Ergin, T.
name: Falcone, A. D.
name: Fegan, S. J.
name: Finley, J. P.
name: Fortin, P.
name: Fortson, L. F.
name: Furniss, A.
name: Gillanders, G. H.
name: Grube, J.
name: Guenette, R.
name: Gyuk, G.
name: Hanna, D.
name: Hays, E.
name: Holder, J.
name: Horan, D.
name: Hui, C. M.
name: Humensky, T. B.
name: Imran, A.
name: Kaaret, P.
name: Karlsson, N.
name: Kertzman, M.
name: Kieda, D. B.
name: Kildea, J.
name: Konopelko, A.
name: Krawczynski, H.
name: Krennrich, F.
name: Lang, M. J.
name: LeBohec, S.
name: Maier, G.
name: McCann, A.
name: McCutcheon, M.
name: Moriarty, P.
name: Mukherjee, R.
name: Nagai, T.
name: Niemiec, J.
name: Ong, R. A.
name: Pandel, D.
name: Perkins, J. S.
name: Pohl, M.
name: Quinn, J.
name: Ragan, K.
name: Reyes, L. C.
name: Reynolds, P. T.
name: Rose, H. J.
name: Schroedter, M.
name: Sembroski, G. H.
name: Smith, A. W.
name: Steele, D.
name: Swordy, S. P.
name: Toner, J. A.
name: Valcarcel, L.
name: Vassiliev, V. V.
name: Wagner, R.
name: Wakely, S. P.
name: Ward, J. E.
name: Weekes, T. C.
name: Weinstein, A.
name: White, R. J.
name: Williams, D. A.
name: Wissel, S. A.
name: Wood, M.
name: Zitzer, B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The VERITAS collaboration reports the detection of very-high-energy (VHE) gamma-ray emission from the high-frequency-peaked BL Lac object 1ES 1218+304 located at a redshift of z=0.182. A gamma-ray signal was detected with a statistical significance of 10.4 standard deviations (10.4 sigma) for the observations taken during the first three months of 2007, confirming the discovery of this object made by the MAGIC collaboration. The photon spectrum between ~160 GeV and ~1.8 TeV is well described by a power law with an index of Gamma = 3.08 +/- 0.34_stat +/- 0.2_sys. The integral flux is Phi(E > 200 GeV) = (12.2 +/- 2.6) X 10^-12 cm^-2 s^-1, which corresponds to ~6% of that of the Crab Nebula. The light curve does not show any evidence for VHE flux variability. Using lower limits on the density of the extragalactic background light in the near to mid-infrared we are able to limit the range of intrinsic energy spectra for 1ES 1218+304. We show that the intrinsic photon spectrum has an index that is harder than Gamma = 2.32 +/- 0.37_stat. When including constraints from the spectra of 1ES 1101-232 and 1ES 0229+200, the spectrum of 1ES 1218+304 is likely to be harder than Gamma = 1.86 +/- 0.37_stat.
description: Accepted for publication in The Astrophysical Journal
THE IMPACT OF FISCAL POLICY TOOLS ON ECONOMIC GROWTH IN TURKEY IS A PATH TOWARDS SUSTAINABLE DEVELOPMENT
Creators: name: ROAA MOHAMMED KADHIM
name: MAMON ADAM MAAROF
name: PARWEEN MOSTAFA HAJI
Publisher: name: Zenodo
Year: 2023

description: Abstract

This study attempts to investigate how fiscal policy instruments affect economic growth and how they contribute to Turkey's sustainable development. Fiscal policy is the term used to describe how the government uses taxing, spending, and borrowing to affect the overall state of the economy. The study looks into the unique fiscal policy initiatives put into place in Turkey and assesses their effects on economic expansion with a focus on sustainability. It also covers the Turkish government's opportunities and difficulties in implementing sound fiscal policy to promote sustainable development. The research may influence governments worldwide to cope with similar challenges and opportunities.
Process Control for Additive Manufacturing of Concrete Components
Creators: name: Lachmayer, Lukas
name: Dörrie, Robin
name: Kloft, Harald
name: Raatz, Annika
Publisher: name: Cham : Springer
Year: 2022
Subjects: subject: Shotcrete 3D printing
subject: Process control
subject: Additive manufacturing
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk

description: Additive manufacturing (AM) processes offer new possibilities in the design of concrete components. The process chain for AM processes generally consists of component design, print path generation, and manufacturing. Within the step of print path generation, the component is commonly divided into layers and filled with waypoints based on the assumption of a constant cross-section of the applied material strands. In contrast to metal or plastic, however, the material properties of fresh concrete are more sensitive to environmental influences such as temperature and humidity. This leads to cross-section variations during the process. Therefore, exclusively relying on an apriori print path planning for large-scale components leads to significant deviations between as-planed and as-printed geometries. The presented research aims to increase the manufacturing accuracy of concrete components by compensating layer inconsistencies through a controlled material application. For this purpose, varying the printing speed and nozzle distance allows for correction of the deviations of subjacent layers. Deviation detection is performed by a 2D laser sensor mounted on the printing nozzle to generate information about the underlying cross-section. Comparing the measured values to precalculated setpoints generates the error values. The control algorithm maps the error data into an adaption of the printing speed and nozzle distance to fulfill the pre-planned geometry. Applying the controller to a medium-sized component and comparing the result to the uncontrolled process shows a considerable accuracy improvement. This is the accepted Version of an article published by RILEM. Readers must contact RILEM for permission to reprint or use the material in any form.
title: Carbon Monoxide on Demand: Light-Induced CO Release of Flavonols
Creators: name: Anderson, Stacey N.
Publisher: name: Utah State University
Year: 2018

description: Carbon monoxide (CO) is an extremely useful molecule with applications in industrial manufacturing, synthetic procedures as a C1 building block, and as a potential pharmaceutical to produce anti-inflammatory effects and vasodilation. However, the toxicity associated with CO has prevented its full utilization. In order to safely handle CO, compounds and molecules have been developed that act as storage materials for the gas. Ideal storage platforms only release CO upon stimulation via a trigger. Light activation is the most desirable trigger as it can be regulated in terms of the intensity and the wavelength of light used. The majority of light-induced CO-storage platforms that have been reported to date consist of metal carbonyl compounds where CO is bound directly to a metal center. However, disadvantages inherent to this motif, such as potential toxicity associated with the metal and lack of characterization of CO release remnant(s), has pushed the research community to search for alternative CO storage structures.
The research presented in this dissertation outlines our approach toward the development of safe-to-handle, light-induced CO release platforms. We use a flavonol structure similar to those found in fruits and vegetables, such as quercetin, as a light-induced CO release unit. Through changes in the structure of the flavonol and its surrounding environment in chemical compounds, we have found ways to strategically control the light-induced CO release reactivity of the flavonol. Chemical compounds developed in this project are of interest for studying the effects of CO in biological systems and applications in synthetic processes.
Nanoepitaxy on quasicrystal surfaces
Creators: name: Erbudak, Mehmet
name: Mungan, Muhittin
name: Burkardt, Sven
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In film growth on quasicrystalline surfaces, the epitaxy-imposed ordering cannot compete with the stable bulk phases of thick films due to absence of translational order in the structure of the substrate. Energetically, this renders the formation of crystalline domains in the native structure of the film material more favorable while their global orientation is prescribed by the quasicrystalline order. We present experimental results on the dissociative chemisorption of oxygen on the decagonal surface of Al$_{70}$Co$_{15}$Ni$_{15}$ as well as molecular-dynamics simulations of the diffusion of adatoms on the surface of the partially covered substrate.
description: 12 pages, 5 figures. Applied Surface Science (2009) in press
Double Field Theory
Creators: name: Hull, Chris
name: Zwiebach, Barton
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The zero modes of closed strings on a torus --the torus coordinates plus dual coordinates conjugate to winding number-- parameterize a doubled torus. In closed string field theory, the string field depends on all zero-modes and so can be expanded to give an infinite set of fields on the doubled torus. We use the string field theory to construct a theory of massless fields on the doubled torus. Key to the consistency is a constraint on fields and gauge parameters that arises from the L_0 - \bar L_0=0 condition in closed string theory. The symmetry of this double field theory includes usual and 'dual diffeomorphisms', together with a T-duality acting on fields that have explicit dependence on the torus coordinates and the dual coordinates. We find that, along with gravity, a Kalb-Ramond field and a dilaton must be added to support both usual and dual diffeomorphisms. We construct a fully consistent and gauge invariant action on the doubled torus to cubic order in the fields. We discuss the challenges involved in the construction of the full nonlinear theory. We emphasize that the doubled geometry is physical and the dual dimensions should not be viewed as an auxiliary structure or a gauge artifact.
description: 51 pages. v2: Corrected typo in eqn. (2.48) and very minor typos elsewhere. Added ref. [9] to M. Van Raamsdonk
title: Mesospheric Gravity Wave Climatology and Variances Over the Andes Mountains
Creators: name: Pugmire, Jonathan Rich
Publisher: name: Utah State University
Year: 2018

description: Look up! Travelling over your head in the air are waves. They are present all the time in the atmosphere all over the Earth. Now imagine throwing a small rock in a pond and watching the ripples spread out around it. The same thing happens in the atmosphere except the rock is a thunderstorm, the wind blowing over a mountain, or another disturbance. As the wave (known as a gravity wave) travels upwards the thinning air allows the wave to grow larger and larger. Eventually the gravity wave gets too large – and like waves on the beach – it crashes causing whitewater or turbulence. If you are in the shallow water when the ocean wave crashes or breaks, you would feel the energy and momentum from the wave as it pushes or even knocks you over. In the atmosphere, when waves break they transfer their energy and momentum to the background wind changing its speed and even direction. This affects the circulation of the atmosphere.
These atmospheric waves are not generally visible to the naked eye but by using special instruments we can observe their effects on the wind, temperature, density, and pressure of the atmosphere. This dissertation discusses the use of a specialized camera to study gravity waves as they travel through layers of the atmosphere 50 miles above the Andes Mountains and change the temperature. First, we introduce the layers of the atmosphere, the techniques used for observing these waves, and the mathematical theory and properties of these gravity waves. We then discuss the camera, its properties, and its unique feature of acquiring temperatures in the middle layer of the atmosphere. We introduce the observatory high in the Andes Mountains and why it was selected. We will look at the nightly fluctuations (or willy-nillyness) and long-term trends from August 2009 until December 2017. We compare measurements from the camera with similar measurements obtained from a satellite taken at the same altitude and measurements from the same camera when it was used at a different location, over Hawaii. Next, we measure the amount of change in the temperature and compare it to a nearby location on the other side of the Andes Mountains. Finally, we look for a specific type of gravity wave caused by wind blowing over the mountains called a mountain wave and perform statistics of those observed events over a period of six years.
By understanding the changes in atmospheric properties caused by gravity waves we can learn more about their possible sources. By knowing their sources, we can better understand how much energy is being transported in the atmosphere, which in turn helps with better weather and climate models.
Even now –all of this is going on over your head!
EXAMINING THE RISK DISCOURSE IN TERROR MOVIES. Tourism and Risk after WTC attack.
Creators: name: Maximiliano, Korstanje
Publisher: name: tourismos
Year: 2012

description: World Trade Centre’s attacks not only set precedents respecting to a new way of making terrorism but also paralyzed the mass-transport for more than one day. This generated a serious challenge for tourist industry to the extent of calling the attention of many scholars. On another hand, 11/09 acted as a conduit for the remake of many movies and films based on the vulnerability of American tourists when are out of home. Under such a context, the present research focuses on the analysis of discourse of four famous terror-related movies. The main thesis of this project is that September 11 attacks paved the ways for the advent of a new genre of terror movies based on sadism, ethnocentrism and the construction of a radicalized-otherness.
description: tourismos, Vol. 7 No. 1 (2012)
Equivariant heat invariants of the Laplacian and nonmininmal operators on differential forms
Creators: name: Wang, Yong
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 58J05, 54A14

description: In this paper, we compute the first two equivariant heat kernel coefficients of the Bochner Laplacian on differential forms. The first two equivariant heat kernel coefficients of the Bochner Laplacian with torsion are also given. We also study the equivariant heat kernel coefficients of nonmininmal operators on differential forms and get the equivariant Gilkey-Branson-Fulling formula.
THE IMPACT OF TOURISM ON OCCURRENCE OF SELECTED ANIMAL SPECIES IN THE BOHEMIAN FOREST
Creators: name: Dvorakova Liskova, Zuzana
name: Lapka, Miloslva
name: Cudlinova, Eva
name: Dvorak, Petr
name: Skodova-Parmova, Dagmar
Publisher: name: tourismos
Year: 2012

description: Currently, the continuous expansion of urban areas is forcing people to move further into the countryside in search for open space. This results in decreasing of undisturbed natural areas which are slowly disappearing. This imbalance in the market, at least in Central Europe, leads to an increase in number of large protected areas preserved as recreational backgrounds for cities. The objective of this research was to assess the impact of tourism during one year on the selected fauna in the Bohemian Forest National Park (Šumava in Czech). Based on outdoor research, the stays signs of game were classified as well as particular activities of visitors were specified in the focused area to analyze the impact rate of visitors on the surrounding area.
description: tourismos, Vol. 7 No. 1 (2012)
EVALUATING FETAL WEIGHT IN PREECLAMPSIA: INSLER'S TECHNIQUE VS. ULTRASONOGRAPHY - A PROSPECTIVE COMPARATIVE STUDY
Creators: name: Dr. Shreya Bhat
name: Dr. Shobha Shiragur
name: Dr. Shailaja R Bidri
name: Dr. Neelamma Patil
name: Dr. Rajasri Yaliwal
Publisher: name: Zenodo
Year: 2024
Subjects: Preeclampsia, Multigravida, Primigravida, Actual Fetal Weight, Clinical, Ultrasound.

description: Abstract

Background: The primary importance of accurately calculating fetal weight lies in effectively managing the process of labour and conducting delivery. Modern obstetrics’ primary goal is to guarantee a healthy baby's birth to a healthy mother. Clinical procedures and ultrasonography are the main methods for predicting birth weight in obstetrics. Few regional studies have related ultrasonography and clinical assessment results to the actual fetal weight in pre-eclamptic multigravida and primigravida women in obstetrics. Aims and objectives: The primary goal of this study is to assess the precision of fetal weight assessment using ultrasound (U.S.G.) and clinical fetal weight techniques in primigravida and multigravida women with preeclampsia. The study aims to evaluate and compare the accuracy of ultrasound (U.S.G.) and clinical fetal weight techniques in primigravida and multigravida women with preeclampsia to the actual fetal weight for the same set of patients. Material and Methods: This research was done over a period of one year, beginning from June 2023 to May 2024; it was carried out in the Obstetrics and Gynecology department of BLDE (D.U.) Shri. B.M. Patil Medical College and Hospital, Vijayapura. Before the study commenced, patients were fully informed about it and provided written consent in line with the ethical guidelines set out by the Institute. As the study focused on preeclampsia patients, a sample of 130 was selected from a population frame of 453 preeclampsia patients who were admitted to BLDE Hospital's labour room between 28 weeks and the term gestation of pregnancy, using a stratified sampling technique. The sample size was estimated using the G*Power 3.1.9.4 tool, and it was determined to be 30% of the population frame of 453 preeclampsia patients, with a 95% confidence interval and a 5% margin for error. Results: The test results indicated that P = 0.000, which is less than 0.01, Pearson r = 0.871, and Alpha = 0.01. The correlation of U.S.G. fetal weight (0.871) with the actual birth weight is significantly higher compared to the clinical fetal weight correlation at a 1% significance level. The high association (0.871) indicates a robust correlation between the estimated ultrasound fetal weight and the actual birth weight, highlighting the accuracy of the ultrasound estimation. Conclusion: Accurate estimation of fetal weight during the intrauterine stage is crucial for planning delivery patterns, as it directly influences prognosis, neonatal survival rates, and the need for intensive care interventions. The study conclusively demonstrates that for pre-eclamptic Multigravida and Primigravida patients, the error in estimating the fetal weight using ultrasound (U.S.G.) was significantly lower than clinical estimates.
Intrinsic polarization of Wolf-Rayet stars due to the rotational modulation of the stellar wind
Creators: name: Abdellaoui, S.
name: Krtička, J.
name: Kurfürst, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Fast rotating Wolf-Rayet stars are expected to be progenitors of long duration gamma-ray bursts. However, the observational test of this model is problematic. Spectral lines of Wolf-Rayet stars originate in expanding stellar wind, therefore a reliable spectroscopical determination of their rotational velocities is difficult. Intrinsic polarization of Wolf-Rayet stars due to the rotational modulation of the stellar wind may provide an indirect way to determine the rotational velocities of these stars. However, detailed wind models are required for this purpose. We determine the intrinsic polarization of Wolf-Rayet stars from hydrodynamical wind models as a function of rotational velocity. We used 2.5D hydrodynamical simulations to calculate the structure of rotating winds of Wolf-Rayet stars. The simulations account for the deformation of the stellar surface due to rotation, gravity darkening, and nonradial forces. From the derived models, we calculated the intrinsic stellar polarization. The mass loss rate was scaled to take realistic wind densities of Wolf-Rayet stars into account. The hydrodynamical wind models predict a prolate wind structure, which leads to a relatively low level of polarization. Even relatively large rotational velocities are allowed by observational constrains. The obtained wind structure is similiar to that obtained previously for rotating optically thin winds. Derived upper limits of rotational velocities of studied Wolf-Rayet stars are not in conflict with the model of long duration gamma-ray bursts
How well do cosmological simulations reproduce individual-halo properties?
Creators: name: Trenti, M.
name: Smith, B. D.
name: Hallman, E. J.
name: Skillman, S. W.
name: Shull, J. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Cosmological simulations of galaxy formation often rely on prescriptions for star formation and feedback that depend on halo properties such as halo mass, central over-density, and virial temperature. In this paper we address the convergence of individual halo properties, based on their number of particles N, focusing in particular on the mass of halos near the resolution limit of a simulation. While it has been established that the halo mass function is sampled on average down to N~30 particles, we show that individual halo properties exhibit significant scatter, and some systematic biases, as one approaches the resolution limit. We carry out a series of cosmological simulations using the Gadget2 and Enzo codes with N_p=64^3 to N_p=1024^3 total particles, keeping the same large-scale structure in the simulation box. We consider boxes from l_{box} = 8 Mpc/h to l_{box} = 512 Mpc/h to probe different halo masses and formation redshifts. We cross-identify dark matter halos in boxes at different resolutions and measure the scatter in their properties. The uncertainty in the mass of single halos depends on the number of particles (scaling approximately as N^{-1/3}), but the rarer the density peak, the more robust its identification. The virial radius of halos is very stable and can be measured without bias for halos with N>30. In contrast, the average density within a sphere containing 25% of the total halo mass is severely underestimated (by more than a factor 2) and the halo spin is moderately overestimated for N<100. If sub-grid physics is implemented upon a cosmological simulation, we recommend that rare halos (~3sigma peaks) be resolved with N>100 particles and common halos (~1sigma peaks) with N>400 particles to avoid excessive numerical noise and possible systematic biases in the results.
description: 25 pages, 9 figures, ApJ accepted
FACTORS INFLUENCING GENERATION Z CONSUMPTION BEHAVIOR IN ONLINE SHOPPING IN JAYAPURA CITY PAPUA PROVINCE
Creators: name: ANITA ERARI
name: OSCAR OSWALD O. WAMBRAUW
Publisher: name: Zenodo
Year: 2024
Subjects: Financial Literacy, Fintech Digital Payment, Finance, Consumer Behavior, Generation Z, Papua Province.

description: Abstract

Excessive consumption, without using a priority scale or prioritizing desires and pleasures over needs, occurs suddenly or without planning. This is known as consumer behavior. By conducting research on native Papuan students at State Universities in Jayapura City, this research aims to study the influence of financial literacy, digital payments and financial technology on the behavior of Generation Z consumers in Jayapura City in shopping online. This research uses primary data from respondents who meet the research criteria. Non-probability and total sampling were used. This research is quantitative and uses multiple linear regression analysis to analyze the data. From the results of this research, Generation z, Indigenous Papuan students at Jayapura City State Universities are expected not to get used to the YOLO (You Only Live Once) and FOMO (Fear of Missing Out) mindset so as not to fall into excessive consumerist behavior which can endanger welfare. finances in the future. Likewise, Generation z, Papuan students at Jayapura City State Universities are also expected to be wiser by having self-control in using digital payment financial technology (fintech digital payment) so that they are not easily tempted by the ease of transactions that would otherwise be carried out. controlled can encourage someone to behave consumptive.
title: Inorganic Electrocatalysts for Innovative Water Splitting and Organic Upgrading
Creators: name: Jiang, Nan
Publisher: name: Utah State University
Year: 2018

description: The booming worldwide demand for energy and the increasing concerns about global warming due to fossil fuel consumption have urged the development of techniques for storing and converting renewable and clean energy resources. Electrocatlytic or photoelectrocatalytic water splitting to generate green energy carrier H2 with sustainable energy input, like solar, has been regarded as an attractive strategy for carbon-neutral energy needs. However, the sluggish kinetics for both half reactions (HER and OER), high overpotentials and thermodynamic requirements, and H2 and O2 gas crossover have been regarded as the major challenges, which limit its widespread application.
On account of high efficiency and fast reaction rate, proton exchange membrane electrolyzer (PEME) has been developed as a mature technology for water splitting under acidic conditions. Nonetheless, it requires noble metals as robust and competent catalysts (like Pt for HER and IrO2 for OER), which is economically unfavorable. Owing to the thermodynamic convenience for OER and the integration of HER and OER in the same electrolyte, anion exchange membrane electrolyzer (AEME) has also been explored under alkaline conditions, utilizing first-row transition metals as bifunctional catalysts. However, for both PEME and AEME, H2 and O2 are generated simultaneously. Even though “gas impermeable” membranes are employed, the formation of H2/O2 mixture is inevitable. So one part of my research introduced a new strategy to couple HER with more thermodynamically favorable biomass-derived upgrading in alkaline solution, which requires lower energy input than overall water splitting and produces more valuable and non-gas products. However, the solubility of biomass-derived organic compounds as well as the competing reaction of water oxidation limits the catalytic current density.
Therefore, we further introduce the concept of redox mediator (RM) to divide conventional water splitting into two separate steps. This allows H2 and O2 to be produced at different times as well as in different spaces and reduces the energy input required to conduct a productive step. This strategy not only prevents H2/O2 mixing but also reduces the voltage input as the redox potential of RM+/0 will be within the HER and OER thermodynamic potentials, hence allowing water splitting to be driven by photovoltaic cells with small photovoltage.
FINITE GROUPS, SIMPLE GROUPS, AND THE CLASSIFICATION OF FINITE SIMPLE GROUPS WITH APPLICATIONS IN CRYPTOGRAPHY AND CODING THEORY
Creators: name: RITU
Publisher: name: Zenodo
Year: 2024

description: Abstract

Finite groups and simple groups are fundamental structures in algebra that play critical roles in various fields, including cryptography and coding theory. The classification of finite simple groups is one of the most significant achievements in modern mathematics, providing a comprehensive list of building blocks for all finite groups. This paper explores the properties of finite groups and simple groups, details the classification of finite simple groups, and highlights their applications in cryptography and coding theory.
THE MINISTRY OF UTMOST RESILIENCE: ECO-FEMINISM, ENVIRONMENTAL DEGRADATION, AND MARGINALIZED VOICES IN ARUNDHATI ROY'S THE MINISTRY OF UTMOST HAPPINESS
Creators: name: AFRIN KHAN A
name: Dr. REMA V
Publisher: name: Zenodo
Year: 2024
Subjects: Eco-Feminism, Environmental Degradation, Urbanization, Marginalization, Gender Justice, Ecological Collapse.

description: Abstract

Arundhati Roy’s The Ministry of Utmost Happiness (2017) presents a vast, intricate tapestry of contemporary India, threading together diverse narratives that encapsulate the socio-political landscape of the nation. This research article delves into the eco-feminist themes present in Roy’s novel, focusing on how the environmental degradation wrought by urbanization serves as a backdrop for the marginalization of vulnerable communities, particularly women. Through a close reading of the novel, this study examines the intersections of nature, gender, and society, analyzing how Roy’s narrative portrays the symbiotic relationship between environmental health and human well-being. By invoking eco-feminist theory, the article explores how Roy’s characters, especially the marginalized, navigate a world of ecological and social collapse, advocating for a reimagined, more inclusive approach to environmental and gender justice. This research underscores the relevance of Roy's novel in the context of contemporary discussions on environmental ethics, urbanization, and the role of women in ecological stewardship.
Controlling magnetization reversal in Co/Pt nanostructures with perpendicular anisotropy
Creators: name: Rahman, M. Tofizur
name: Dumas, Randy K.
name: Eibagi, Nasim
name: Shams, Nazmun N
name: Wu, Yun-Chung
name: Liu, Kai
name: Lai, Chih-Huang
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate a simple method to tailor the magnetization reversal mechanisms of Co/Pt multilayers by depositing them onto large area nanoporous anodized alumina (AAO) with various aspect ratios, A = pore depth/diameter. Magnetization reversal of composite (Co/Pt)/AAO films with large A is governed by strong domain-wall pinning which gradually transforms into a rotation-dominated reversal for samples with smaller A, as investigated by a first-order reversal curve method in conjunction with analysis of the angular dependent switching fields. The change of the magnetization reversal mode is attributed to topographical changes induced by the aspect ratio of the AAO templates.
description: 12 pages, 3 figures
Cross-modal matching and association abilities of the left and right hemispheres tested under intracarotid sodium amytal
Creators: name: Pratt, L. Rachel
Publisher: name: University of British Columbia
Year: 2010

description: Anatomical and theoretical considerations, as well as experimental findings, have yielded conflicting points of view regarding the abilities of the right hemisphere in man to accomplish cross-modal transfer of Information. Auditory-visual cross-modal matching (CMM) and association (CMA) abilities of the left and right hemispheres (LH and RH) were tested, utilizing the Wada intracarotid sodium amytal technique. It was found that the RH performed slightly better on these tasks than the LH. Possible reasons for this RH advantage are discussed. These findings contrast with results of other techniques which indicate that the RH cannot perform CMM and CMA. The hypothesis that damage to one hemisphere interfers with the normal operations of the other hemisphere is discussed.
The Casimir force in noncommutative Randall-Sundrum models
Creators: name: Nouicer, Khireddine
name: Sabri, Youssef
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we study the effect of spacetime noncommutativity in the 5-dimensional Randall-Sundrum brane worlds on the Casimir force acting on a pair of parallel plates. We show that the presence of a noncommutative scale length affects the nature of the Casimir force for small plate separation. Using accurate experimental bounds for the Casimir force in parallel plate geometry, we find an upper bound for the noncommutative cutoff of the order of $10^{3}$ TeV, and that the size of the interbrane distance in RSI model is approximately given by $kR\lesssim20.5$ and $kR\lesssim18.4$ for $k=10^{19}$ GeV and $k=10^{16}$GeV, respectively.
description: 20 pages, 5 figures, accepted for publication in Phys. Rev. D
Caratterizzazione meccanica multiscala di materiali rocciosi strutturalmente complessi
Creators: name: Bandini, Annalisa <1981>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: ING-IND/28 Ingegneria e sicurezza degli scavi

description: The research work was aimed at studying, with a deterministic approach, the relationships between the rock’s texture and its mechanical properties determined at the laboratory scale. The experimentation was performed on a monomineralic crystalline rock, varying in texture, i.e. grains shape.
Multi-scale analysis has been adopted to determine the elasto-mechanical properties of the crystals composing the rock and its strength and deformability at the macro-scale. This let us to understand how the structural variability of the investigated rock affects its macromechanical behaviour.
Investigations have been performed on three different scales: nano-scale (order of nm), micro-scale (tens of m) and macro-scale (cm).
Innovative techniques for rock mechanics, i.e. Depth Sensing Indentation (DSI), have been applied, in order to determine the elasto-mechanical properties of the calcite grains.
These techniques have also allowed to study the influence of grain boundaries on the mechanical response of calcite grains by varying the indents’ sizes and to quantify the effect of the applied load on the hardness and elastic modulus of the grain (indentation size effect, ISE). The secondary effects of static indentation Berkovich, Vickers and Knoop were analyzed by SEM, and some considerations on the rock’s brittle behaviour and the effect of microcracks can be made.
ANALYSIS OF “ALL-INCLUSIVE” TOURISM MODE IN THE BALEARIC ISLANDS
Creators: name: Anderson, Wineaster
Publisher: name: tourismos
Year: 2012

description: Tourism market forces in most tourism driven economies and mature tourism destinations shift from the ‘conventional independent’ to ‘all-inclusive’ (AI) tour mode. Using Majorca as a case study, this paper analyses the AI mode: its supply and demand sides. Through specific tourist and desk surveys conducted in 2006, it was revealed that until May 2006,the population of AI accommodation suppliers in Majorca was around 195; 36% of which offer ‘exclusively AI’ product. Moreover, above 85% of tourists visiting Majorca were package tour customers; with at least 15 percent travelling through the AI tours. Noticeably, an AI tourist spends less than overall average tourist’s expenditure per day at the destination, but spends more at the country of origin. Challenges are identified and recommendations given to improve the welfare of the economy.
description: tourismos, Vol. 7 No. 1 (2012)
D3.1 – Description of the numerical model for HP/ORC systems optimization and application to different test cases
Creators: name: Astolfi, Marco
name: Alfani, Dario
Publisher: name: Zenodo
Year: 2023
Subjects: Organic Rankine Cylce
Heat Pump
Numerical Model
Simulation
Python
Thermodynamic Cycle
Renewable Energy Sources
Techno-economic assessment

description: The present deliverable presents the features, the operating principle and some results that can be obtained as a part of Task 3.1 – “Numerical model for optimal design of HP/ORC thermodynamic cycles ”. According to task description the Numerical model can perform the constrained optimization of the system investigating non-conventional plant configurations and selecting the most appropriate working fluid(s). A numerical model has been implemented in Python 3.7 and integrated with REFPROP 10 in order to ensure a high accuracy of working fluid thermodynamic properties calculation.

The numerical model is able to maximize system performance also providing a preliminary sizing of main components and techno-economic assessment based on RTE/Atot that has been identified as the most appropriate figure of merit for preliminary screening of fluids and cycle optimal parameters also accounting for the heat exchangers sizing. The numerical model is flexible and able to include different types of RES and technologies or WEH for providing heat (at high and medium temperature) and electricity. In addition to what was reported in the Grant Agreement the code is also able to investigate reversible, coupled and decoupled cycles and perform Pareto front analysis. Code structure and main features are all implemented, and the code will be further improved till the end of the project.
A REVIEW OF SPARE PARTS INVENTORY MANAGEMENT: DIFFERENT METHODS OF SPARE PARTS CLASSIFICATION AND INVENTORY CONTROL TECHNIQUES
Creators: name: EL-ASSAL A.M
name: ROUBI ZAIED
name: TAMER M. ELDOGDOG
Publisher: name: Zenodo
Year: 2024
Subjects: Spare Parts Management, Spare Parts Classification, ABC Analysis, VED Analysis.

description: Abstract

The research is a review that covers various methods and techniques for spare parts management. It discusses traditional and modern forecasting methods, as well as different approaches to inventory classification and multi-criteria analysis. The paper identifies scientific gaps in the field of spare parts management and proposes new features to improve prediction accuracy. The study also highlights the importance of effective spare parts management in optimizing storage costs and ensuring the availability of raw materials and products. It addresses the challenge of disruptions in the production flow, which is a critical concern for companies, particularly those involved in manufacturing automobile engines. The research proposes a hybrid approach that combines both qualitative and quantitative methods, incorporating Vital–Essential–and Desirable (VED) analysis, and other techniques of spare parts classification methods. The goal is to identify and prioritize spare parts to be stocked efficiently. The aim of the study is to create a good classification that includes all possible criteria to ensure a good classification of spare parts, previous studies based their classification on one, two or three criteria at most, and this is not sufficient to calculate Re-order Point (ROP) and Economic Order Quantity (EOQ) with high accuracy based on changes in the market and supply chains.