cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Weingarten map and curvatures of SL(n, R)
Creators: name: Sarkar, Supravat
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this article, we shall derive by elementary calculations the Gauss map, spherical image, Weingarten map and the curvatures at identity of the special linear group, that is, the matrices of determinant 1. We could not find any reference where this simple, nice computation has been explicitly put down.
EFFECT OF VARIOUS LED LIGHT COLORS AND INTENSITY LEVELS ON GROWTH PERFORMANCE AND COST-EFFECTIVENESS IN LAYERS KEPT IN ENVIRONMENT CONTROL HOUSE DURING GROWING PHASE
Creators: name: AHMAD HAMAD SHEIR
name: FAWWAD AHMAD
name: MUHAMMAD YOUSAF
name: RAO ZAHID ABBAS
Publisher: name: Zenodo
Year: 2024
Subjects: Layer Birds; Light Colors; Intensities; Growth Performance; Feed Conversion Ratio (FCR); Economics.

description: Abstract

In the current study, the effects of various LED light colors and intensities on the production performance of 720 Babcock® White layers were determined. The layer birds were reared for 8 weeks from the age of 9 weeks to 16 weeks and divided into 18 treatment groups, each with four replicates of 10 birds, in a 6x3 factorial randomized design. The birds were housed in environmental control housing containing 3-tiered laying cages (2 ft x 4 ft x 2 ft) with sloping wire. Light treatments of 6 different colors, cool white (control group), red, blue, green, yellow, and warm white light (Specifically designed for birds/ Sterna light) light with 3 different levels of light intensities (8 lux, 10 lux, and 12 lux), were provided in the rearing phase (9-16 weeks). The wavelengths of different colors of light were cool white 590 nm (400-800 nm), red 630 nm (625-660 nm), blue 470 nm (430-505 nm), green 535 nm (500-565 nm), yellow 585 nm (575-590 nm), and warm white 580 nm (350-830 nm). Weekly evaluations for feed intake, body weight, body weight gain, feed conversion ratio (FCR) was determined. Weekly evaluations for weekly weight, feed intake, body weight, body weight gain, feed conversion ratio (FCR), mortality and economic were determined. The observed data was analyzed with Minitab 18 using factorial arrangements to determine means, p-value and errors. The graphical presentation was done by Origin Pro 2024 and RStudio. The results demonstrated that there was significant (p<0.05) effect of different light colors and intensities on weekly weight, feed intake, body weight, body weight gain and feed conversion ratio (FCR). Interaction among light color and intensities was also observed to be significant (p<0.05). Layers exposed to warm white light showed the highest weights consistently across the weeks, starting from 737.75 g in the 9th week to 1351.3 g by the 16th week. Red light caused the highest feed intake when, starting from around 341-345 g in the first week and increasing to about 493-494 g by the eighth week. Layers exposed to warm white light had the highest weight gain throughout the weeks, starting from 94.16 g in the 9th week to 82.08 g in the 16th week. Red light had the highest total mortality rate, with a noticeable increase during the last four weeks. The birds under red light having 12 lux intensity had the significantly lowest production cost (Rs: 1053.9). During growing stage (9-16 weeks) red light having 12 lux intensity may be applied to reduce the cost of production.
ChatGPT – wenn die künstliche Intelligenz schreibt wie ein Mensch. Und was es dabei zu beachten gilt.
Creators: name: Ramelet, Laetitia
name: TA-SWISS
Publisher: name: Zenodo
Year: 2023
Subjects: subject: https://www.ta-swiss.ch/themen#informationsgesellschaft

description: Themenpapier zu ChatGPT
Nanoscale phase separation and superconductivity in the one-dimensional Hirsch model
Creators: name: Anfossi, Alberto
name: Boschi, Cristian Degli Esposti
name: Montorsi, Arianna
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate numerically at various fillings the ground state of the one-dimensional Hubbard model with correlated hopping x (Hirsch model). It is found that, for a wide range of filling values n around half filling, and for repulsive Coulomb interaction u\leq u_c(x,n), phase separation at a nanoscale (NPS phase) between two conducting phases at different densities occurs when x\gtrsim 2/3. The NPS phase is accompanied by the opening of a spin gap and the system behaves as a Luther-Emery Liquid with dominant superconducting correlations. Close to half filling, an anomalous peak emerges in the charge structure factor related to the density of doubly occupied sites, which determines the size of the droplets in the NPS phase. For 1/2\lesssim x\lesssim 2/3 a crossover to a homogeneous phase, still superconducting, takes place.
description: 9 pages, 10 figures
title: Why Do They Do That? Understanding Factors Influencing Visitor Spatial Behavior in Parks and Protected Areas
Creators: name: Sisneros-Kidd, Abigail M.
Publisher: name: Utah State University
Year: 2018

description: Visitors to parks and protected areas within the United States and worldwide often visit these areas with a particular destination in mind, such as seeing Old Faithful erupt in Yellowstone National Park or standing on the rim of the Grand Canyon in Grand Canyon National Park. These visitor use destinations, and the pathways leading to them, such as trails and roadways, see high levels of use, and as a result, impacts to soil, vegetation, air, water, soundscapes, and night skies that result from this use. The field of recreation ecology studies these impacts to park and protected area resources resulting from recreation use. Research conducted by recreation ecologists helps park and protected area managers prevent and minimize these impacts and preserve park resources for future generations.
However, not all recreation use and impacts occur along designated pathways and at visitor destinations. The impacts that result outside of these designated areas often cause more damage to park resources such as vegetation and soil. The studies presented in this dissertation examine what factors are influencing visitor behavior outside of these destinations and pathways, such as when visitors travel off of designated trails. The results provide managers with a set of factors that may influence visitor behavior outside of visitors’ intended destinations. These factors will enable managers to better understand existing visitor spatial behavior patterns and associated resource impacts, and also predict where resource impacts may be likely to occur due to visitor recreation use, enabling prevention of future impacts from occurring.
A systematic study of the valence electronic structure of cyclo(Gly-Phe), cyclo(Trp-Tyr) and cyclo(Trp-Trp) dipeptides in gas phase
Creators: name: Molteni, Elena
name: Mattioli, Giuseppe
name: Alippi, Paola
name: Avaldi, Lorenzo
name: Bolognesi, Paola
name: Carlini, Laura
name: Vismarra, Federico
name: Wu, Yingxuan
name: Varillas, Rocio Borrego
name: Nisoli, Mauro
name: Singh, Manjot
name: Valadan, Mohammadhassan
name: Altucci, Carlo
name: Richter, Robert
name: Sangalli, Davide
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The electronic energy levels of cyclo(Glycine-Phenylalanine), cyclo(Tryptophan-Tyrosine) and cyclo(Tryptophan-Tryptophan) dipeptides are investigated with a joint experimental and theoretical approach. Experimentally, valence photoelectron spectra in the gas phase are measured using VUV radiation. Theoretically, we first obtain low-energy conformers through an automated conformer-rotamer ensemble sampling scheme based on tight-binding simulations. Then, different first principles computational schemes are considered to simulate the spectra: Hartree-Fock (HF), density functional theory (DFT) within the B3LYP approximation, the quasi--particle GW correction, and the quantum-chemistry CCSD method. Theory allows to assign the main features of the spectra. A discussion on the role of electronic correlation is provided, by comparing computationally cheaper DFT scheme (and GW) results with the accurate CCSD method.
description: 21 pages, 16 figures (including Supplementary Information)
title: Thermodynamics and Kinetics of Small Molecule Binding to [Cyclopentadienyl-Ru-NO] and [Rh-CO] Electrophilic Centers
Creators: name: Svetlanova, Anna
Publisher: name: Utah State University
Year: 1996

description: This work is concentrated on the thermodynamic and kinetic aspects of water, alcohols, alkyl halides, ethers, and lactones bound and activated by the electrophilic [Cp'Ru(N0)] +2 and [Cp’Ru (NO)(CH3)] + centers (Cp' = cyclopentadienyl group). Counterions in these systems include OSO2CF3- (OTf-) and [(3, 5-(CF3)2C6H3)4B]- ([BAr4']-). The displacement of OTf- in Cp'Ru(N0) (0Tf)2 by H20 in dichloromethane is exothermic but entropically unfavorable due to the required reorganization of the solvent cage around released triflate ions. Thermodynamic parameters are also determined for OTf displacement by chloride and tetrahydrofuran (THF) using the 19F nuclear magnetic resonance (NMR) spectroscopy. The conversion of the [Cp’Ru (NO)(OH2)2] +2 to [Cp’Ru (NO)(μ-OH)} 2 +2 in aqueous solutions is characterized thermodynamically and kinetically by potentiometric and NMR methods.
The results of the study of rhodium triflato complex trans- [Rh (CO)(PPh3)2(OTf)] show that OTf coordinates to the metal center in wet dichloromethane solutions, but the compound crystallizes as a water-coordinated triflate salt trans- [Rh (CO)(PPh3)2(OH2)] [OTf]. Thermodynamic parameters for alcohol (methanol, ethanol, isopropanol) binding to the Cp*Ru(N0) (0Tf)2 are determined from the 19F NMR spectroscopic data. The kinetics of the oxidation of alcohols to aldehydes or ketones via Ru (II) >>> Ru (0) redox process is studied by NMR methods. The results of the study support {3-hydrogen elimination mechanism, comprising one of the very few mechanistic investigations on reactions of this kind. Alkyl iodides are found to bind to the [Cp*Ru (NO)(CH3)] + fragment via displacement of a THF ligand in the presence of a BAr4 •-counterion, forming alkyl halide complexes that convert to [Cp’Ru (NO)(μ-I)]2+2. The mixed ruthenium-chromium complex [CpCr (NO)2(μ-I) (Ru (Cp’) (NOW is characterized as primarily a [Ru-I >> Cr] system as opposed to a [Ru
Refined Gelfand models for some finite complex reflection groups
Creators: name: Fulci, Roberta <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: MAT/02 Algebra

description: In 'Involutory reflection groups and their models' (F. Caselli, 2010), a uniform Gelfand model is constructed for all complex reflection groups G(r,p,n) satisfying GCD(p,n)=1,2 and for all their quotients modulo a scalar subgroup. The present work provides a refinement for this model. The final decomposition obtained is compatible with the Robinson-Schensted generalized correspondence.
Detailed design of a resonantly-enhanced axion-photon regeneration experiment
Creators: name: Mueller, Guido
name: Sikivie, Pierre
name: Tanner, D. B.
name: van Bibber, Karl
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A resonantly-enhanced photon-regeneration experiment to search for the axion or axion-like particles is described. This experiment is a shining light through walls study, where photons travelling through a strong magnetic field are (in part) converted to axions; the axions can pass through an opaque wall and convert (in part) back to photons in a second region of strong magnetic field. The photon regeneration is enhanced by employing matched Fabry-Perot optical cavities, with one cavity within the axion generation magnet and the second within the photon regeneration magnet. Compared to simple single-pass photon regeneration, this technique would result in a gain of (F/pi)^2, where F is the finesse of each cavity. This gain could feasibly be as high as 10^(10), corresponding to an improvement in the sensitivity to the axion-photon coupling, g_(agg), of order (F/pi)^(1/2) ~ 300. This improvement would enable, for the first time, a purely laboratory experiment to probe axion-photon couplings at a level competitive with, or superior to, limits from stellar evolution or solar axion searches. This report gives a detailed discussion of the scheme for actively controlling the two Fabry-Perot cavities and the laser frequencies, and describes the heterodyne signal detection system, with limits ultimately imposed by shot noise.
description: 10 pages, 5 figures
Assessing poverty with survey data. Uni-dimensional, multidimensional and resilience poverty analysis in Kenya
Creators: name: D’Errico, Marco <1974>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: SECS-P/01 Economia politica

description: Traditionally Poverty has been measured by a unique indicator, income, assuming this was the most relevant dimension of poverty. 
Sen’s approach has dramatically changed this idea shedding light over the existence of many more dimensions and over the multifaceted nature of poverty; poverty cannot be represented by a unique indicator that only can evaluate a specific aspect of poverty. 
This thesis tracks an ideal path along with the evolution of the poverty analysis. Starting from the unidimensional analysis based on income and consumptions, this research enter the world of multidimensional analysis. After reviewing the principal approaches, the Foster and Alkire method is critically analyzed and implemented over data from Kenya. A step further is moved in the third part of the thesis, introducing a new approach to multidimensional poverty assessment: the resilience analysis.
Le "scriminanti" controverse. Alcune ipotesi problematiche
Creators: name: Annibalini, Andrea <1981>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: IUS/17 Diritto penale

description: Il presente elaborato, è composto di due sezioni in cui sorge una “controversia” che riguarda  la categoria delle “scriminanti”: nella prima sezione, la tipologia delle scriminanti viene analizzata all'interno delle cause di non punibilità, lato sensu intese. In particolare, vengono esaminati due profili, su cui dottrina e giurisprudenza hanno offerto catalogazioni difformi: l'art. 68 comma I della Costituzione, sull'insindacabilità del parlamentare per le opinioni espresse ed i voti dati nell'esercizio delle proprie funzioni, e l'art. 598 del codice penale sull'immunità giudiziale delle parti e dei loro patrocinatori per gli scritti presentati ed i discorsi pronunciati in sede giudiziale. Dalle diverse opzioni ermeneutiche prescelte, discenderanno pertanto anche differenti risvolti sul piano applicativo: Il capitolo I, tratta per l'appunto della differente disciplina tra cause di giustificazione, cause di non punibilità in senso stretto, e scusanti.
La seconda sezione, attiene alla diversa problematica della scriminante non codificata nell'attività sportiva, laddove per limiti intrinseci alle disposizioni normative, le scriminanti codificate, in particolare gli articoli 50 e 51 del codice penale, si rivelano insufficienti alla descrizione del fenomeno dell'attività sportiva violenta, od eventualmente violenta. 
Questa seconda sezione, necessitava di un'apposita analisi, contenuta nel capitolo introduttivo alla predetta, sul tema della possibile configurabilità nell'ordinamento italiano dell'analogia in bonam partem (all'interno della quale, rientrano per l'appunto le scriminanti),  principale obiezione rispetto all'ammissibilità di scriminante altrimenti definite tacite, non codificate o atipiche.
The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars V. A Characterization of Protostellar Multiplicity
Creators: name: Tobin, John J.
name: Offner, Stella S. R.
name: Kratter, Kaitlin M.
name: Megeath, S. Thomas
name: Sheehan, Patrick D.
name: Looney, Leslie W.
name: Diaz-Rodriguez, Ana Karla
name: Osorio, Mayra
name: Anglada, Guillem
name: Sadavoy, Sarah I.
name: Furlan, Elise
name: Segura-Cox, Dominique
name: Karnath, Nicole
name: Hoff, Merel L. R. van 't
name: van Dishoeck, Ewine F.
name: Li, Zhi-Yun
name: Sharma, Rajeeb
name: Stutz, Amelia M.
name: Tychoniec, Lukasz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We characterize protostellar multiplicity in the Orion molecular clouds using ALMA 0.87~mm and VLA 9~mm continuum surveys toward 328 protostars. These observations are sensitive to projected spatial separations as small as $\sim$20~au, and we consider source separations up to 10$^4$~au as potential companions. The overall multiplicity fraction (MF) and companion fraction (CF) for the Orion protostars are 0.30$\pm$0.03 and 0.44$\pm$0.03, respectively, considering separations from 20 to 10$^4$~au. The MFs and CFs are corrected for potential contamination by unassociated young stars using a probabilistic scheme based on the surface density of young stars around each protostar. The companion separation distribution as a whole is double peaked and inconsistent with the separation distribution of solar-type field stars, while the separation distribution of Flat Spectrum protostars is consistent solar-type field stars. The multiplicity statistics and companion separation distributions of the Perseus star-forming region are consistent with those of Orion. Based on the observed peaks in the Class 0 separations at $\sim$100~au and $\sim$10$^3$~au, we argue that multiples with separations $$10$^3$~au to $
description: 76 pages, 20 Figures, 10 Tables, accepted by the Astrophysical Journal
Observationally Constraining the Starspot Properties of Magnetically Active M67 Sub-Subgiant S1063
Creators: name: Gosnell, Natalie M.
name: Gully-Santiago, Michael A.
name: Leiner, Emily M.
name: Tofflemire, Benjamin M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Our understanding of the impact of magnetic activity on stellar evolution continues to unfold. This impact is seen in sub-subgiant stars, defined to be stars that sit below the subgiant branch and red of the main sequence in a cluster color-magnitude diagram. Here we focus on S1063, a prototypical sub-subgiant in open cluster M67. We use a novel technique combining a two-temperature spectral decomposition and light curve analysis to constrain starspot properties over a multi-year time frame. Using a high-resolution near-infrared IGRINS spectrum and photometric data from K2 and ASAS-SN, we find a projected spot filling factor of 32 $\pm$ 7% with a spot temperature of 4000 $\pm$ 200 K. This value anchors the variability seen in the light curve, indicating the spot filling factor of S1063 ranged from 20% to 45% over a four-year time period with an average spot filling factor of 30%. These values are generally lower than those determined from photometric model comparisons but still indicate that S1063, and likely other sub-subgiants, are magnetically active spotted stars. We find observational and theoretical comparisons of spotted stars are nuanced due to the projected spot coverage impacting estimates of the surface-averaged effective temperature. The starspot properties found here are similar to those found in RS CVn systems, supporting classifying sub-subgiants as another type of active giant star binary system. This technique opens the possibility of characterizing the surface conditions of many more spotted stars than previous methods, allowing for larger future studies to test theoretical models of magnetically active stars.
description: 14 pages, 6 figures, accepted to the Astrophysical Journal
Additional file 2 of MiR-509-3p is oncogenic, targets the tumor suppressor PHLPP2, and functions as a novel tumor adjacent normal tissue based prognostic biomarker in colorectal cancer
Creators: name: Iyer, Deepak Narayanan
name: Foo, Dominic Chi-Chung
name: Lo, Oswens Siu-Hung
name: Wan, Timothy Ming-Hun
name: Li, Xue
name: Sin, Ryan Wai-Yan
name: Pang, Roberta Wen-Chi
name: Law, Wai-Lun
name: Ng, Lui
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 2.
¿Manifestación de Dios o afirmación de su existencia? Henri de Lubac y Michel Henry, lectores de la prueba anselmiana
Creators: name: Gonçalves Lind, Andreas
Publisher: name: Zenodo
Year: 2024
Subjects: Michel Henry
Henri de Lubac
Hermeneutics
Anselmian proof

description: Both Henri de Lubac and Michel Henry commented on the Proslogion of Saint Anselm. While the theologian decides in favor of the medieval doctor, the latter makes a vehement critique against Anselm’s very well-known argumentum. However, both commentaries have in common the fact of positing the debate, not in the field of pure rationality, but rather in the affectivity of the self. Both authors show how access to God is realized through an experience of suffering wherein there is no place for pure reason. In so doing, both authors show how God is present to the self by rejecting any kind of extrinsicism that could be conceived in the relationship between man and God/ nature and grace.
L'azione penale tra esercizio pubblico e iniziativa privata. Il ricorso immediato al giudice di pace
Creators: name: Piazzi, Giacomo Riccardo <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: IUS/16 Diritto processuale penale

description: Il presente lavoro mira ad esamina l'ammissibilità nell'ordinamento giuridico italiano, sia a livello di normativa costituzionale che ordinaria, di un'azione penale c.d. privata. A tale fine viene dedicato un paragrafo all'esame di quelle che nella storia dell'ordinaemnto giuridico italiano potevano in apparenza essere considerate azioni penali c.d. private. La disamina non poteva non comprendere lo strumento introdotto con il decreto legislativo sulla competenza penale del giudice di pace, nomenclato ricorso immediato dell'offeso.
title: Characterization of an Axial Ligand Substitution in Sperm Whale Myoglobin
Creators: name: Chen, Michael J.
Publisher: name: Utah State University
Year: 1995

description: Of central importance to the study of heme proteins are the effects imposed by axial ligand(s) on the heme structure and, therefore, on the overall activity of the protein. In this study, we confirm and extend the spectroscopic characterization of a mutated sperm whale myoglobin in which the proximal Histidine is replaced with a Tyrosine residue (MbH93Y). The MbH93Y, as well as wild-type sperm whale myoglobin and horse erythrocyte catalase (HEC), was purified and characterized by optical absorption and x-ray absorption (XAS) spectroscopies. Optical absorption spectra of HEC and the metmyoglobin, cyanometmyoglobin, reduced, oxy, and carbon-monoxy forms of both sperm whale myoglobin (SWMb) and MbH93Y were identical to previously reported values within the respective errors:. Extended x-ray absorption fine structure (EXAFS) studies revealed that the proximal bond length in MbH93Y was 2.13 ± 0.03 A, compared to 2.14 ± 0.02 A for sperm whale metmyoglobin and 1.90 ± 0.02 A for catalase. Additionally, the sixth coordination site normally occupied in wild type sperm whale metmyoglobin and in catalase at low temperatures was vacant in MbH93Y, a result corroborated by the optical absorption spectra and cyanogen bromide modification of the distal histidine. Measurements were also made on the cyanide complexes of the three proteins as well, among which, (i) the average iron-to-pyrrole nitrogen bond distance for MbH93Y-CN was 1.96 ± 0.015 A compared to 2.00 ± 0.015 A for WT SWMb-CN and HEC-CN and (ii) the proximal bond length in MbH93Y-CN was 2.07 ± 0.02 A, while that of WT SWMb-CN was 2.10 ± 0.02 A and that of HEC-CN was found to be 2.12 ± 0.02 A. Further, upon exposure to 2-molar equivalents of hydrogen peroxide, sperm whale myoglobin formed a Compound II -like spectrum, while the Soret absorbance of MbH93Y was rapidly, significantly, and irreversibly decreased. Furthermore, the dissociation constants for CN- binding to MbH93Y were found to be, on average, approximately three orders of magnitude higher than those of wild-type sperm whale myoglobin and are consistent with the many-fold higher cyanide binding kinetics for wild type, relative to the mutant protein. Finally, the PK. of the mutant was found to be more than three orders of magnitude higher than that of the native protein. Explanations focusing on probable electronic effects of the phenolate oxygen atom in the sperm whale myoglobin pocket are discussed.
title: Microlitiasis testícular: ¿Existe relación con la infertilidad?
Creators: name: Bolivar Cuevas, Santiago Alejandro
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Outcomes analysis
subject: Ultrasound
subject: Genital / Reproductive system male
subject: Abdomen
subject: Calcifications / Calculi

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
PROPÓSITO La microlitiasis testicular,
es una condición de etiología desconocida,
relativamente rara,
que esta presente en aproximadamente el 0.6-9% (6) de las ecografía testiculares realizadas.
Se caracteriza por la presencia ecografía de...
ASSESSMENT OF ISCHEMIC STROKE IN VARIOUS NEUROVASCULAR TERRITORIES AND ITS ASSOCIATED RISK FACTORS ON COMPUTED TOMOGRAPHY IN REHMAN MEDICAL INSTITUTE, PESHAWAR
Creators: name: SHAHID IQBAL
name: SAYED RASHID HUSSAIN
name: KOMAL SHAFIQ
name: RIMSHA NIAZ
Publisher: name: Zenodo
Year: 2024
Subjects: Stroke, Neurovascular, Territories, Computed Tomography.

description: Abstract

Background: Ischemic stroke is one of the considerable public health concerns with diverse clinical presentations and underlying risk factors. Understanding the dissemination of ischemic strokes in different neurovascular zones and identifying associated risk factors is crucial for optimizing prevention and management strategies. Methodology: The study was a descriptive cross-sectional study, which was based upon the secondary data collected from relevant patients’ history file and report forms by the research team using questionnaires. The study was conducted from patient report forms ranging from (July 1, 2022-July 1, 2023) and was conducted in Rehman medical institute, Peshawar. The data was collected by non-probability convenience sampling using a self-structured questionnaire. Results: The distribution of ischemic strokes varied across neurovascular territories, with 160 (54.8%) patients were suffering from middle cerebral artery (MCA) territory, 96 (32.9%) patients were suffering from lacunar artery (LA) territory, 48 (16.4%) patients were suffering from anterior cerebral artery (ACA) territory, 39 (13.4%) patients were suffering from internal carotid artery (ICA) territory, 38 (13%) patients were suffering from Vertebero-basilar arteries (VBA) territory, 37 (12.7%) patients were suffering from watershed / border zone territory and 28(9.6%) patients were suffering from posterior cerebral artery (PCA). Conclusion: Based on our data collection, we conclude that MCA territory strokes are the most common while the PCA territory strokes are the least common among neurovascular strokes. Furthermore, we found that the incidence of stroke increases with age, as 5.8% of patients were in the 40–49 age range. The highest percentage was seen in the age range of 70–79, followed by the 60–69 age range and then in the 50–59 age range. Our findings indicated that the primary risk factors for stroke were hypertension, atrial fibrillation, migraine and diabetes mellitus.
Quantum blockade and loop current induced by a single lattice defect in graphene nanoribbons
Creators: name: Yan, Jie-Yun
name: Zhang, Ping
name: Sun, Bo
name: Lu, Hai-Zhou
name: Wang, Zhigang
name: Duan, Suqing
name: Zhao, Xian-Geng
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate theoretically the electronic transport properties in narrow graphene ribbons with an adatom-induced defect. It is found that the lowest conductance step of a metallic graphene nanoribbon may develop a dip even down to zero at certain values of the Fermi energy due to the defect. Accompanying the occurrence of the conductance dip, a loop current develops around the defect. We show how the properties of the conductance dip depend on the parameters of the defect, such as the relative position and severity of the defect as well as the width and edges of the graphene ribbons. In particular, for metallic armchair-edges graphene nanoribbons, whether the conductance dip appears or not, they can be controlled by choosing the position of the single defect.
description: 6 pages, 6 figures
A COMPARATIVE ANALYSIS OF CAFFEINE & NICOTINE ADDICTION PATTERN IN YOUNG MALES
Creators: name: Dr. BUSHRA JABEEN MEHDI
name: MUBASHIR RAZA
name: MUSAB OMAR SIDDIQUI
name: SAIMA KHALIQ
name: MUHAMMAD TAHIR GABOL
name: HAFIZ HAMZA KHALID
name: ESHA TIR RADIA
Publisher: name: Zenodo
Year: 2024
Subjects: Blood Glucose, Cholesterol, Biomarkers, Caffeine, Nicotine.

description: Abstract

Introduction: Caffeine and nicotine are widely consumed legal stimulants with significant public health implications, particularly among youth. To investigate addiction and usage patterns among young males. This study focuses on how these two drugs, nicotine and caffeine alter brain and body functioning. Methods: This research encompassed two phases: Phase 1, involved questionnaire data collection and behavioral analysis. In Phase 2, biochemical effects of nicotine and caffeine addiction were assessed via blood sample or biochemical analysis. Results: The outcome of this study indicates that fasting blood glucose as well as blood cholesterol for the addicted group (nicotine and caffeine users) was significantly higher than that of the non-addicts. The study analyzed biomarker changes in male individuals with nicotine and caffeine addiction, compared to non-addicts. Nicotine addicts showed significantly higher cholesterol (214.93 mg/dl) and glucose levels (113.20 mg/dl) compared to non-addicts (cholesterol: 107.4 mg/dl, glucose: 87.43 mg/dl). Similarly, caffeine addicts had elevated cholesterol (202.04 mg/dl) and glucose levels (113.14 mg/dl) compared to non-addicts. Conclusion: Nicotine and Caffeine consumption by young people has increased dramatically over the last decade, as both the drugs are legal and freely available. Both are addictive and can lead to adverse effects. Nicotine's addictive nature rivals: heroin and cocaine, making quitting challenging, while caffeine addiction, though less severe, also causes withdrawal symptoms but is comparatively easier to overcome.
Effects of elaborative prompt condition and developmental level on performance of addition problems by kindergarten children
Creators: name: Grunau, Ruth V. E.
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of the present study was to examine the possibility that an elaborative process (Rohwer, 1973) may be used by young children in the performance of addition. The effects of elaborative Prompt Condition (Concrete plus Verbal, Imaginal plus Verbal, Verbal Only) and Described Relation (Dynamic, Static) on the performance of addition word problems of the form m+n=_, were examined with 108 kindergarten children at three Developmental Levels (Conservers, Transitionals , Nonconservers). Three counting models children may use to solve addition word problems, were also examined. An analysis of the number of correct responses revealed that overall, Conservers performed significantly better than Transitionals and Nonconservers, who did not differ from each other. At each Developmental Level children performed best under the Concrete plus Verbal Prompt Condition. When performance on items where m>n was compared with m<n, Conservers and Nonconservers performed differently under the Imaginal plus Verbal Condition as compared with Verbal Only. The effect of Described Relation was significant for two of the nine Developmental Level x Prompt Condition groups. More correct responses were observed under the Static than Dynamic Described Relation. The results for the. counting models tentatively suggested that, for. all Developmental Levels., latencies under the Concrete plus Verbal Prompt Condition were related to the least efficient of the three models tested. For Conservers and Transitionals combined, latencies were related to the most efficient counting model under the Imaginal plus Verbal Prompt Condition, and to the least efficient model under the Verbal Only Prompt Condition. The results suggest that an elaborative process may be used by kindergarten children in the solution of addition word problems. This process may be activated by different prompts, depending on the developmental level of the child. Implications of the findings for further research, as well as for the educational setting, are discussed.
title: Ecografia transrectal prostática: diagnostico diferencial y cribado neoplásico.
Creators: name: Madureira Cordeiro, Joana
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neoplasia
subject: Hyperplasia / Hypertrophy
subject: Congenital
subject: Screening
subject: Biopsy
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Interventional non-vascular
subject: Genital / Reproductive system male
subject: Abdomen

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Revisión de los fundamentos básicos de la anatomía ecográfica normal y de los principales bloques de la patología prostática,
que permitan al profesional reconocer los hallazgos esenciales. Revisar y definir mejoras en la técnica de biopsia...
title: Carcinoma renal papilar: hallazgos en imagen y pitfalls
Creators: name: Tirapu Tapiz, Marta
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Kidney

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
1.- Describir las características epidemiológicas y peculiaridades histológicas del carcinoma renal papilar. 2.- Revisar los hallazgos radiológicos que permiten diferenciar el carcinoma papilar de otros subtipos de tumores renales.Se ilustra...
title: The Transport and Intracellular Distribution of Iron in the Basidiomycete, Ustilago sphaerogena
Creators: name: Passavant, Charles W.
Publisher: name: Utah State University
Year: 1981

description: The transport and intracellular distribution of iron in Ustilago sphaerogena via the native siderochrome ferrichrome A has been examined. Evidence is presented which suggests the involvement of deferriferrichrome in iron transport when the metal is supplied to the cell as ferrichrome A. This process requires both oxygen and ATP synthesis and may require a transmembrane electrochemical gradient. Once inside the cell, iron derived from ferrichrome A is rapidly distributed, with a major fraction found in the mitochondria, presumably as heme.
The kinetics of ferrichrome and ferrichrome A uptake have also been investigated. The Km of transport of ferrichrome was determined to be 0.6 μM with a maximum velocity of 1.55 nmoles/min/mg. For ferrichrome A the Km was found to be 7.6 μM; Vmax was 0.85 nmoles/ min/mg. Ferrichrome functions as a competitive inhibitor of ferrichrome A transport with a Ki of 14 μM, while ferrichrome A inhibited ferrichrome transport in a noncompetitive manner. Together these data are consistent with a two-site model for siderochrome transport. A model for the transport process is presented.
The exchange of iron from fcA to deferrifch has also been examined. The ratio of the binding constants between fcA and fch was found to be 5.29. From this data the binding constant for fcA was determined to be 6.82x10^29.
A study of sunspot 3 minute oscillations using ALMA and GST
Creators: name: Chai, Yi
name: Gary, Dale E.
name: Reardon, Kevin P.
name: Yurchyshyn, Vasyl
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Waves and oscillations are important solar phenomena, not only because they can propagate and dissipate energy in the chromosphere, but also because they carry information about the structure of the atmosphere in which they propagate. The nature of the three-minute oscillations observed in the umbral region of sunspots is considered to be an effect of propagation of magnetohydrodynamic (MHD) waves upward from below the photosphere. We present a study of sunspot oscillations and wave propagation in NOAA AR 12470 using an approximately one-hour long data set acquired on 2015 December 17 by the Atacama Large Millimeter/submillimeter Array (ALMA), the Goode Solar Telescope (GST) operating at the Big Bear Solar Observatory (BBSO), the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO), and the Interface Region Imaging Spectrograph (IRIS). The ALMA data are unique in providing a time-series of direct temperature measurements in the sunspot chromosphere. The two-second cadence of ALMA images allows us to well resolve the three-minute periods typical of sunspot oscillations in the chromosphere. Fourier analysis is applied to ALMA Band 3 ($\sim$100 GHz, $\sim$3 mm) and GST H$α$ data sets to obtain power spectra as well as oscillation phase information. We analysed properties of the wave propagation by combining multiple wavelengths that probe physical parameters of solar atmosphere at different heights. We find that the ALMA temperature fluctuations are consistent with that expected for a propagating acoustic wave, with a slight asymmetry indicating non-linear steepening.
description: 18 pages, 13 figures
Reflection above the barrier as tunneling in momentum space
Creators: name: Jaffe, R. L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum mechanics predicts an exponentially small probability that a particle with energy greater than the height of a potential barrier will nevertheless reflect from the barrier in violation of classical expectations. This process can be regarded as tunneling in momentum space, leading to a simple derivation of the reflection probability.
description: 7 pages, 3 figures, submitted to American Journal of Physics. Version 2: MIT preprint number added, typographical error in caption to Figure 2 corrected
SPATIAL FOREST HEALTH MONITORING USING GEOSPATIAL TECHNIQUE: A CASE STUDY OF CHANGA MANGA FOREST, PAKISTAN
Creators: name: MUHAMMAD ASAD
name: NALAIN E    MUHAMMAD
name: MUHAMMAD SAFDAR
name: MUHAMMAD JEHANZEB MASUD CHEEMA
name: HAMZA FAROOQ GABRIEL
name: UZAIR ABBAS
name: REHAN MEHMOOD SABIR
Publisher: name: Zenodo
Year: 2024
Subjects: Forest Health, NDVI. NDWI, NDPI.

description: Abstract

Forests play a significant role in the healthy environment of a country. Global warming, climate change, and human activities are affecting the forest cover of Pakistan. Moreover, overall forest health is also deteriorating. It is very tough to measure and monitor forest health by field survey. Forest health damage which is affected by water stress, different diseases, and other causes is mostly and easily observable from long distances. In this research study, we have investigated forested areas by alternative ways of making spatial forest maps by using remote sensing and GIS tools. Satellite images of July 2018 from Sentinel-2 have been used for this research study. Firstly, a forest cover map is made and evaluated by classification of Changa Manga (total area 52.7km2) Forest. Forest health is assessed using Vegetation Indices (VIs), which use specific relationships to distinguish changes in greenness, water content, and light use efficiency of the forest. After Evaluating NDVI, NDWI, and NDPI, we have 54.69%, 53.76%, and 42.45% area was healthy forest respectively. Then unhealthy forests cover 44.98%, 38.99%, and 50.21% of the area respectively. These vegetation indexes use reflectance at different wavelength bands. Different GIS tools for data acquisition were used and spatial maps of forest health were constructed for visual understanding. Our results will help forest agencies carry out necessary reforestation plans and manage standing forests more effectively.
Degeneracy Between the Regge Slope of Mesons and Baryons from Supersymmetry
Creators: name: Armoni, Adi
name: Patella, Agostino
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the degeneracy between the Regge slope of mesons and baryons in QCD. We argue that within the "orientifold large-N approximation" asymptotically massive mesons and baryons become supersymmetric partners and hence degenerate. To this end, we generalize QCD by a SU(N) theory with a quark in the two-index antisymmetric representation. We show that in this framework the meson is represented by an oriented bosonic QCD-string and the baryon is represented by an un-oriented fermionic QCD-string. At large-N, due to an equivalence with super Yang-Mills, the tensions of the bosonic and the fermionic strings coincide. Our description of mesons and baryons as oriented and un-oriented bosonic and fermionic QCD-strings is in full agreement with the spectra of open strings in the dual type 0' string theory.
description: v2: extended version. Appendices and references added
The adoption of recommended administrative practices by directors of public school adult education in the province of British Columbia
Creators: name: Anderson, Darrell V.
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of the study was to investigate the behavior of directors of public school adult education in British Columbia, as adopting agents within a structured social system. Thus both personal characteristics of this official as well as situational and structural features of his organizational system were analyzed in order to determine the relative impact of these sets of variable on his adoption behavior. A crucial question to be determined was whether the director is more influenced in his adoption behavior by systems features or by his own personal characteristics. She sample consisted of the sixty-six directors who held that position during 1969-70 term. An analytical survey method was used, with a structured interview employed to gather data from each director. Initially, thirty-four personal characteristics of the director and thirty-seven systems factors were examined relative to the adoption of. twenty-six administrative practices. The dependent variable of the study was comprised of a total adoption score for each director calculated on the stage of the adoption process reached by the director for each of the twenty-six practices. At first, frequency distributions of the general characteristics of the sample were examined and then the t-test and F test were employed to determine the degree of relationship of the mean adoption scores among the directors. Multiple Regression analysis was used in the second stage of the analysis to determine the proportion of variation in adoption explained by thirty-four significant independent variables. Throughout several phases of the regression analysis, one factor consistently accounted for 54.3 per cent of the variance in adoption scores. That factor was the Amount of Time the Director was Officially Employed to Carry Out His Duties. Thus a work-situational element basically attributable to the organizational system emerged as the most significant variable as far as the variance in adoption scores was concerned, indicating that the director is more influenced in his adoption behavior by a systems factor than by his own personal characteristics. Two such characteristics, the director's professional participation score and work satisfaction score together accounted for no more than seven per cent of the variance in adoption scores. The adoption of the recommended administrative practices investigated in this study was largely a reflection of the director's administrative competence and professionalism. A necessary prerequisite to development in these areas was provided by appointing the director to a full-time position and by supplying him with other organizational supports.
title: Mechanism of Two Homogeneous Reactions; CO Self Exchange and N2 Self Exchange
Creators: name: Rockwood, Alan L.
Publisher: name: Utah State University
Year: 1981

description: The two atom switching reactions referred to in the title were originally studied at temperatures greater than 2000°K in shock tubes by other investigators. For each reaction they proposed a direct four-center exchange mechanism in which one of the reactant molecules must be vibrationally excited, (the vibrational excitation mechanism or VEM). One of the predictions of the VEM is that molecules which are vibrationally hot but translationally cold should react through the four center transition state that leads to exchange.
Using a mercury photosensitization technique, it is shown in the present work that excitation of CO to high vibrational levels is not sufficient to cause the CO self-exchange reaction. Similar attempts were also made to verify the VEM for the N2 reaction, but no exchange was observed. Kinetic modeling studies show that an atomic chain mechanism triggered by traces of oxygen impurity is responsible for all or much of the CO exchange observed in the shock tubes. Modeling studies show that many of the observed features of the N2 reaction are also correctly predicted by an atomic chain mechanism; however, the critical step in the mechanism, the N + N2 exchange reaction, has never been observed. Potential surface calculations show that at the restricted Hartree-Fock level of approximation the N3 potential surface has an energy barrier for exchange of over 80 kcal/mole, which is much too high if the atomic mechanism is to operate in the shock tubes. By comparison with similar calculations on N2o+, it is argued that the RHF calculations probably overestimate the true barrier height by about 80 kcal/mole, so the barrier to exchange on the N3 potential surface is probably no more than a few kcal/mole, and the N + N2 reaction is probably fast at high temperatures. Potential surface calculations on N4 show that the barrier to exchange through the four-center transition state is almost certainly much too high to account for the exchange observed in the shock tubes. Certain limitations on the rate law and energy barrier to exchange are derived for the VEM. It is concluded that both exchange reactions can be explained by atomic chain mechanisms and there is no need to invoke the VEM for either reaction.