cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The potential of traditionally used medicinal plants for the synthesis of selenium nanoparticles
Creators: name: Sentkowska, Aleksandra
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Plant Biology

description: Selenium nanoparticles (SeNPs) have the potential to be used in many applications. In recent years green synthesis using plant extracts has gained popularity, due to the use of non-toxic solvents. In this work, the application of plantain (Plantago lanceolata L.), yarrow (Achilea millefolium L.) and nettle (Urtica dioica L.) in the synthesis of SeNPs is presented. The obtained nanoparticles were characterized in terms of size and antioxidant activity. A strong correlation between the dimensions of synthesized nanoparticles and their ability to scavenge hydroxyl radicals was established.
A probable giant planet imaged in the Beta Pictoris disk
Creators: name: Lagrange, A. -M.
name: Gratadour, D.
name: Chauvin, G.
name: Fusco, T.
name: Ehrenreich, D.
name: Mouillet, D.
name: Rousset, G.
name: Rouan, D.
name: Allard, F.
name: Gendron, E.
name: Charton, J.
name: Mugnier, L.
name: Rabou, P.
name: Montri, J.
name: Lacombe, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Since the discovery of its dusty disk in 1984, Beta Pictoris has become the prototype of young early-type planetary systems, and there are now various indications that a massive Jovian planet is orbiting the star at ~ 10 AU. However, no planets have been detected around this star so far. Our goal was to investigate the close environment of Beta Pic, searching for planetary companion(s). Deep adaptive-optics L'-band images of Beta Pic were recorded using the NaCo instrument at the Very Large Telescope. A faint point-like signal is detected at a projected distance of ~ 8 AU from the star, within the North-East side of the dust disk. Various tests were made to rule out with a good confidence level possible instrumental or atmospheric artifacts. The probability of a foreground or background contaminant is extremely low, based in addition on the analysis of previous deep Hubble Space Telescope images. The object L'=11.2 apparent magnitude would indicate a typical temperature of ~1500 K and a mass of ~ 8 Jovian masses. If confirmed, it could explain the main morphological and dynamical peculiarities of the Beta Pic system. The present detection is unique among A-stars by the proximity of the resolved planet to its parent star. Its closeness and location inside the Beta Pic disk suggest a formation process by core accretion or disk instabilities rather than a binary-like formation process.
description: 5 pages, 3 figures, 1 table. A&A Letters, in press
title: The Impact of Access Roads on Spontaneous Colonization Chane-Piray Area Department of Santa Cruz Bolivia
Creators: name: Royden, Thomas C.
Publisher: name: Utah State University
Year: 1973

description: The purpose of this study was to investigate the impact of access roads on the process of spontaneous colonization of virgin forest land in the tropical lowlands of Bolivia. An access road in the Department of Santa Cruz serving an area opened up by spontaneous colonization was studied. The interpretation of aerial photographs and data collected in the area were used to illustrate the importance of access roads for successful spontaneous colonization. General conclusions were drawn with regard to the role that spontaneous colonization as a dynamic force was playing in the development of Bolivia's tropical lowlands.
AKE inhibiitorite toime erütrotsüütide rauast tingitud deformatsiooni muutustele
Creators: name: Kals, Jaak
name: Zilmer, Kersti
name: Teder, Külli
name: Zilmer, Mihkel
Publisher: name: OÜ Celsius Healthcare
Year: 2004
Subjects: kaptopriil, ramiprilaat, fosinoprilaat, raud, erütrotsüüdid

description: Töös uuriti, kas AKE inhibiitorid kaptopriil, ramipriil ja fosinopriil on võimelised terapeutilistes kontsentratsioonides in vitro ära hoidma raud-initsieeritud erütrotsüütide deformatsiooni vähenemist. Kuna ramipriil ja fosinopriil muudetakse organismis aktiivvormideks, uuriti nende puhul aktiivvorme ehk ramiprilaati ja fosinoprilaati. Erütrotsüütide deformeeritavust hinnati kromatograafilise migratsiooni kaudu, määrates
seda enne  ja pärast ravimiga eeltöötlust. Leiti, et raua poolt põhjustatud erütrotsüütide deformatsiooni vähenemist takistasid kõik uuritavad ained  ja seda  juba terapeutilistes kontsentratsioonides. Erinevate AKE inhibiitorite toime efektiivsus oli samal ajal sõltuv rauakontsentratsioonist.
description: Eesti Arst, August 2004
Ajateenijate kehaline areng ja haigestumine
Creators: name: Novikov, Oleg
name: Kiivet, Raul-Allan
Publisher: name: OÜ Celsius Healthcare
Year: 2004
Subjects: kehaline võimekus, haigestumine, ajateenijad

description: Uurimistöö eesmärgiks oli ajateenistuse mõju hindamine ajateenijate tervislikule seisundile nende kehalise arengu, füüsilise võimekuse ja haigestumise andmete alusel. Uuritavateks olid 2000. a üksik-vahipataljonis teeninud 568 ajateenijat. Ajateenistus parandas märkimisväärselt enamiku ajateenijate füüsilist võimekust, eriti nendel, kelle tulemused olid teenistuse alguses mitterahuldavad. Haigestumine ajateenistuse jooksul vähenes peamiselt füüsiliselt paremini ettevalmistatud ajateenijate arvelt.
description: Eesti Arst, August 2004
Amide Proton Transfer (APT) imaging in tumor with a machine learning approach using partially synthetic data
Creators: name: Viswanathan, Malvika
name: Yin, Leqi
name: Kurmi, Yashwant
name: Zu, Zhongliang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Medical Physics (physics.med-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Machine learning (ML) has been increasingly used to quantify chemical exchange saturation transfer (CEST) effect. ML models are typically trained using either measured data or fully simulated data. However, training with measured data often lacks sufficient training data, while training with fully simulated data may introduce bias due to limited simulations pools. This study introduces a new platform that combines simulated and measured components to generate partially synthetic CEST data, and to evaluate its feasibility for training ML models to predict amide proton transfer (APT) effect. Partially synthetic CEST signals were created using an inverse summation of APT effects from simulations and the other components from measurements. Training data were generated by varying APT simulation parameters and applying scaling factors to adjust the measured components, achieving a balance between simulation flexibility and fidelity. First, tissue-mimicking CEST signals along with ground truth information were created using multiple-pool model simulations to validate this method. Second, an ML model was trained individually on partially synthetic data, in vivo data, and fully simulated data, to predict APT effect in rat brains bearing 9L tumors. Experiments on tissue-mimicking data suggest that the ML method using the partially synthetic data is accurate in predicting APT. In vivo experiments suggest that our method provides more accurate and robust prediction than the training using in vivo data and fully synthetic data. Partially synthetic CEST data can address the challenges in conventional ML methods.
description: Updated Supporting Information typos
title: Team Rules and Regulations Used by Football and Basketball Coaches in Utah High Schools
Creators: name: Molgard, Robert Kent
Publisher: name: Utah State University
Year: 1973

description: The purpose of this study was to gather and analyze information concerning the establishment and administration of specific team rules and regulations used by the football and basketball coaches in Utah High schools.
Sub-objectives of this study were: (a) to compare the opinions of coaches according to school classification - class AA, class A, and class B; (b) to compare the opinions of less experienced coaches with those of more experienced coaches; (c) to compare the opinions of basketball coaches with those of football coaches.
One-hundred and thirty-nine coaches responded to a questionnaire that included statements asking for information concerning the establishment and administration of team rules, regulations, and penalties applying to the areas of alcohol, tobacco, illegal drugs, curfew, attendance at practices and games, dress and appearance standards, and participation in recreational activities.
It was found that the coaches were of the opinion that team rules and regulations were important in high school athletics. It was also found that regardless of the classification of the school, the sport, or the number of years of experience that the coaches had, the responses of the coaches were very much similar, with only minor degrees of variation in responses to some of the questions.
Stability under integration of sums of products of real globally subanalytic functions and their logarithms
Creators: name: Cluckers, Raf
name: Miller, Daniel J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 51M25, 14P15, 32B20; 14P10, 32C05, 33B10

description: We study Lebesgue integration of sums of products of globally subanalytic functions and their logarithms, called constructible functions. Our first theorem states that the class of constructible functions is stable under integration. The second theorem treats integrability conditions in Fubini-type settings, and the third result gives decay rates at infinity for constructible functions. Further, we give preparation results for constructible functions related to integrability conditions.
SARS – uus emergeerunud viirusnakkus
Creators: name: Subi, Kiira
Publisher: name: OÜ Celsius Healthcare
Year: 2004
Subjects: viirusnakkuste emergeerumine, SARS, koronaviirused, SARS-CoV, levik, kliiniline pilt, diagnoosimine

description: SARS (severe acute respiratory syndrome) on tõsiselt kulgev äge respiratoorne viirusnakkus, mille tekitajaks on uut tüüpi koronaviirus SARS-CoV. SARSi inkubatsiooniperiood kestab 2–16 päeva. Haigus algab järsku kõrge palaviku, külmavärinate, peavalu, nohu ja kurguvaluga, võib tekkida oksendus, kõhuvalu ja -lahtisus ning kiiresti areneb pneumoonia koos vastavate sümptomitega. Haigus levib piisknakkuse teel ja haigestuvad eeskätt vanemad inimesed (üle 65 a). Et SARS-CoV on tundlik harilike desinfitseerimisvahendite ja kuumutamise suhtes, siis on tavaliste nakkustõrjemeetmete aktiivsel rakendamisel võimalik SARSi levikut pidurdada. Spetsiifiline ravi puudub, ka tõhusat vaktsiini pole siiani suudetud saada.
description: Eesti Arst, August 2004
Kvaliteedijuhtimissüsteemi rakendamine tervishoiuteenuste osutamisel
Creators: name: Põlluste, Kaja
Publisher: name: OÜ Celsius Healthcare
Year: 2004
Subjects: kvaliteet, kvaliteedijuhtimine, tervishoiuteenus, kvaliteedijuhtimissüsteem, -standard, organisatsiooni täiusmudel

description: Viimase kahe aastakümne jooksul on paljudes riikides hakatud tervishoiuteenuste osutamisel üha enam rakendama kvaliteedijuhtimise põhimõtteid. Tervishoiuteenuse kvaliteedi hindamisel on oluline arvestada kõigi huvirühmade soove ja vajadusi, lisaks tuleb tervishoiuteenuse osutajal järgida oma igapäevases töös ka erinevaid õigusaktides sätestatud nõudeid.
description: Eesti Arst, August 2004
The ethnobotany, phytochemistry, and biological properties of genus Phagnalon (Asteraceae): a review
Creators: name: Cicio, Adele
name: Badalamenti, Natale
name: Bruno, Maurizio
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Plant Biology

description: The genus Phagnalon Cass., included within the Asteraceae family, has a wide distribution, expanding from Macaronesia in the West to the Himalayas in the East, from S. France and N. Italy to Ethiopia and Arabian Peninsula. Various species of Phagnalon have been used in the popular medicine of several countries as medicinal herbs and food. This literature review, the first one of the Phagnalon genus, includes publications with the word ‘Phagnalon’, and considers the extracts and the single metabolites identified, characterized, and tested to evaluate their biological potential. The extracts and the secondary metabolites, have a varied application spectrum at a biological level, with antimicrobial, antioxidant, antidiabetic, antitumor, etc. properties having been reported. Unfortunately, in vitro tests have not always been accompanied by in vivo tests, and this is the major critical aspect that emerges from the study of the scientific aspects related to this genus.
Quantum Phase Transitions in Skewed Ladder Systems
Creators: name: Das, Sambunath
name: Dey, Dayasindhu
name: Raghunathan, Rajamani
name: Soos, Zoltán G.
name: Kumar, Manoranjan
name: Ramasesha, S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this brief review, we introduce a new spin ladder system called skewed spin ladders and discuss the exotic quantum phases of this system. The spin ladders studied are the 5/7, 3/4 and 3/5 systems corresponding to alternately fused 5 and 7 membered rings; 3 and 4 membered rings; and 3 and 5 membered rings. These ladders show completely different behaviour as the Hamiltonian model parameter is changed. When the Hamiltonian parameter is increased the 5/7 ladder switches from an initial singlet ground state to progressively higher spin ground state and then to a reentrant singlet state before finally settling to the highest spin ground state whose spin equals the number of unit cells in the system. The 3/4 ladder goes from a singlet ground state to a high spin ground state with each unit cell contributing spin 1 to the state, as the model parameter is increased. The 3/5 ladder shows a singlet ground state for small parameters and high spin ground state for intermediate values of the parameter and for still higher parameters, a reentrant singlet ground state. They can also show interesting magnetization plateaus as illustrated by studies on a specific spin ladder.
Kliinilised ravimiuuringud: Eesti arsti võimalus osaleda rahvusvahelises uurimistöös
Creators: name: Siigur, Ingrid
name: Otsalt, Katrin
name: Ölluk, Marko
Publisher: name: OÜ Celsius Healthcare
Year: 2004
Subjects: ravimiuuringud, eetikakomitee, audit, patsiendi nõusolek

description: Kliinilised ravimiuuringud on nüüdisajal meditsiini lahutumatu osa. Sellega puutuvad kokku üha sagedamini nii arstid kui ka patsiendid.
description: Eesti Arst, August 2004
Electron liquids in solids: hydrodynamic description inspired by ideas of Radii Gurzhi
Creators: name: Kalinenko, A. N.
name: Levchenko, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This is the preface article written for the special issue of Low Temperature Physics on the captivating topic of electron hydrodynamics dedicated to the pioneering work of Radii Gurzhi. The article features a brief synopsis of Gurzhi's seminal contributions that have played a pivotal role in shaping this continuously evolving area of condensed matter physics. This tribute is followed by a brief introduction to the collection of contributed papers published in the issue representing recent research in this dynamic field.
description: Prepared for the special issue on electron hydrodynamics in the Low Temperature Physics [4 pages]
title: A Comparison of the Heart Rates and Workload Levels of Selected Male Freshman Basketball Players at Utah State University During Actual Game Competition
Creators: name: Leo, C. David
Publisher: name: Utah State University
Year: 1973

description: The purpose of this study was to determine the effects of physical exertion upon the heart rates and workload levels of five selected male freshman basketball players at Utah State University during actual game competition.
One hour prior to each of the ten home basketball games, two E&M Surface Electrodes were mounted to the chest of the test subject with disposable double-sided adhesive washers. A biotelemetry transmitter, used for sending electrical signals from the player to a biotelemetry receive r and polygraph, was placed in a plastic sack and taped to the beltline of the subjects athletic supporter. The telemetry receiver and polygraph were located behind the Utah State University team bench.
One subject was tested per game and each subject was tested twice throughout the study. The same subject was tested once every fifth home game.
The data was collected with a polygraph, by means of radiotelemetry, and recorded according to mean heart (beats per minute), mean volume of oxygen (liters per minute), and mean workload (kilopondmeters per minute), which were the measurements used for the data in the statistical design. In each of these three categories, consideration and comparisons were made of: (A) offensive play, (B) ball handling, (C) defensive play, (D) defense on the ball, (E) fastbreak, (F) shooting, (G) scoring, and (H) rebounding. Data, concerning mean volume of oxygen and mean workload, were processed according to Astrand's Nomogram. A two way analysis of variance test was applied to the data to determine the significant difference between the variables. Another statistical analysis that was conducted on the data was a Newman Keuls Sequential Range Test for determining the significant difference between the eight different game situations studied throughout this study.
The two way analysis of variance showed that there was a significant difference at the .05 level of confidence in the mean heart rate, mean volume of oxygen, and mean workload levels of the five subjects during the game situations mentioned above. The Newman Keuls Sequential Range Test indicated that a significant difference occurred at the .05 level between the ball handling activities (fastbreak, ball handling, and shooting) and the non-ball handling activities (rebounding, scoring, defense on the ball, defensive play, and offensive play). Also, this test showed that no significant difference occurred at the .05 level within the two groups of activities mentioned above.
Characterization of Microlensing Planets with Moderately Wide Separations
Creators: name: Han, Cheongho
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In future high-cadence microlensing surveys, planets can be detected through a new channel of an independent event produced by the planet itself. The two populations of planets to be detected through this channel are wide-separation planets and free-floating planets. Although they appear as similar short time-scale events, the two populations of planets are widely different in nature and thus distinguishing them is important. In this paper, we investigate the lensing properties of events produced by planets with moderately wide separations from host stars. We find that the lensing behavior of these events is well described by the Chang-Refsdal lensing and the shear caused by the primary not only produces a caustic but also makes the magnification contour elongated along the primary-planet axis. The elongated magnification contour implies that the light curves of these planetary events are generally asymmetric and thus the asymmetry can be used to distinguish the events from those produced by free-floating planets. The asymmetry can be noticed from the overall shape of the light curve and thus can hardly be missed unlike the very short-duration central perturbation caused by the caustic. In addition, the asymmetry occurs regardless of the event magnification and thus the bound nature of the planet can be identified for majority of these events. The close approximation of the lensing light curve to that of the Chang-Refsdal lensing implies that the analysis of the light curve yields only the information about the projected separation between the host star and the planet.
description: 4 pages, 2 figures
Quantitative studies of factors affecting bone blood flow based on bone clearance of radiostrontium (Sr85)
Creators: name: Shim, Sun Shik
Publisher: name: University of British Columbia
Year: 2011

description: Factors affecting bone blood flow were studied in rabbits and dogs. A method for estimating bone blood flow was developed using the initial bone clearance of radioactive strontium (Sr⁸⁵) from blood. The method is based on Fick Principle and is similar to that used in estimating renal plasma flow from clearance of PAH or diodrast. The validity of the method depends on the efficiency of or Sr⁸⁵ removal from blood by bone as indicated by the Extraction Ratio (ER). This represents the proportion of the Sr⁸⁵ which has been removed from the blood flowing through bone. It was determined in 10 dogs by injecting Sr⁸⁵ and plasma dye, T-1824, into the nutrient artery of tibia. During the next 5 minutes, 87.3 ± 2.9% of the plasma dye and 20.21 ± 1.68% of the Sr⁸⁵ were recovered from the corresponding femoral vein. The Extraction Ratio calculated from the data was 0.764 ± 0.066 (SE) and is comparable to the ER of 0.90 for extraction of PAH by kidney. The high ER appears to justify the use of initial (0-5 min) bone clearance of Sr⁸⁵ as a measure of effective bone blood flow. Divided by the Extraction Ratio, the clearance gives an indirect measure of total bone blood flow. Using the above technique, the mean effective bone blood flow for 270 bones from 80 rabbits was found to be 9.60 ± 0.19 (SE) ml/min/100 g fresh weight, and for 46 bones from 10 dogs, the average value was 10.15 ± 0.61 (SE) ml/min/100 g fresh weight. Total skeletal blood flow was estimated to be 7.1 ± 0.25 (SE) % of the resting cardiac output in the rabbits and 7.3 ± 0.95 (SE) % of the resting cardiac output in the dogs. The nutrient artery of femur was found to supply 70% of the blood flow to the shaft and 1/3 of the blood flow to the ends. Blood flow to the ends of bone was significantly higher than that to the shaft. Various factors affecting bone blood flow were studied. Section of the sciatic nerve increased blood flow to the bones of the leg and foot, presumably due to interruption of vasomotor fibers. In contrast, infusion of epinephrine (2-4 micro-gram/ kg/min) reduced blood flow to tibia and humerus by 74-81% and sharply reduced calcium exchange between blood and the labile calcium storage pool in bone. Immobilization of the leg in a plaster cast for 2 weeks resulted in some decrease in blood flow in tibia and calcaneus but more prolonged immobilization (2 months) caused disuse osteoporosis in these bones and a relative increase in blood flow. The surgical problem of fractures of the neck of femur was studied, and it was found that such fractures reduced blood flow to the femoral head by 52-83%. This interference with blood flow may account for high incidence of aseptic necrosis of the femoral head associated with such fractures.
Signatures of Klein tunneling in disordered graphene p-n-p junctions
Creators: name: Rossi, E.
name: Bardarson, J. H.
name: Brouwer, P. W.
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present a method for obtaining quantum transport properties in graphene that uniquely combines three crucial features: microscopic treatment of charge disorder, fully quantum mechanical analysis of transport, and the ability to model experimentally relevant system sizes. As a pertinent application we study the disorder dependence of Klein tunneling dominated transport in p-n-p junctions. Both the resistance and the Fano factor show broad resonance peaks due to the presence of quasi bound states. This feature is washed out by the disorder when the mean free path becomes of the order of the distance between the two p-n interfaces.
description: 4 pages, 4 figures
The apparent tidal decay of WASP-4 b can be explained by the Rømer effect
Creators: name: Harre, Jan-Vincent
name: Smith, Alexis M. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Tidal orbital decay plays a vital role in the evolution of hot Jupiter systems. As of now, this was only observationally confirmed for the WASP-12 system. There are a few other candidates, including WASP-4 b, but no conclusive result could be obtained for these systems as of yet. In this study, we present an analysis of new TESS data of WASP-4 b together with archival data, taking the light-time effect (LTE), induced by the second planetary companion, into account as well. We make use of three different Markov-Chain-Monte-Carlo models; a circular orbit with a constant orbital period, a circular orbit with a decaying orbit, and an elliptical orbit with apsidal precession. This analysis is repeated for four cases. The first case features no LTE correction, with the remaining three cases featuring three different timing correction approaches. Comparison of these models yields no conclusive answer to the cause of WASP-4\,b's apparent transit timing variations. A broad range of values of the orbital decay and apsidal precession parameters are possible, depending on the LTE correction. This work highlights the importance of continued photometric and spectroscopic monitoring of hot Jupiters.
description: Submitted to /Universe/, Special Issue "The Royal Road: Eclipsing Binaries and Transiting Exoplanets"
title: Petrography and Geochemistry of the Fish Haven Formation and Lower Part of the Laketown Formation, Bear River Range, Utah
Creators: name: Mecham, Brent H.
Publisher: name: Utah State University
Year: 1973

description: Near Logan, Utah, the Fish Haven Formation is a thick-bedded, dark-gray dolostone. The Laketown Formation, which rests on the Fish Haven, is a less resistant, medium-gray dolostone. The Ordovician-Silurian boundary has been placed locally at the top of the Fish Haven by stratigraphers, and in the lower Laketown Formation by paleontologists.
Four sections of the Fish Haven and Laketown dolostones were measured near Logan, Utah. The samples from these four sections were examined using petrography, insoluble residue analyses, x- ray diffraction, quantitative and qualitative x-ray fluorescence spectroscopy, and statistical analysis.
Petrography appears to be the best lab technique for distinguishing the two dolostones. This technique shows the grain size decreases in going from the Fish Haven Formation to the Laketown Formation. This decrease in grain size is also seen in the field.
All other laboratory techniques show that the two dolostones are very similar and cannot, in general, be distinguished. To summarize, the percent insoluble residue and the percent of quartz and illite found in each formation are independent of formational boundaries. X-ray diffraction, X-ray fluorescence spectroscopy, and statistical analysis all show that the two formations are geochemically similar.
A comparison of dolostones shows that they may, in general, be divided into two categories of pure and impure. The Fe2O3 content of pure dolostones may be less than the Fe2O3 content of impure dolostones. Other than the change in Fe2O3 content dolostones tend to be the same geochemically. This suggests that the process of dolomitization tends to obliterate any differences which may have originally existed and make all dolostones essentially uniform in composition.
The young open cluster Trumpler 3
Creators: name: Maciejewski, G.
name: Bukowiecki, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a photometric and spectroscopic study of the poorly investigated open cluster Trumpler~3. Basic parameters such as the age of $70\pm10$ Myr, the color excess $E(B-V)=0.30\pm0.02$ mag, the distance of $0.69\pm0.03$ kpc and the limiting radius of 12' were redetermined and compared with previous preliminary studies. The distance of $0.65\pm0.09$ kpc was determined independently by spectral parallaxes. Simultaneously, our analysis allowed us to estimate a total number of members to be $N_{\rm{tot}}=570\pm90$ and a total mass of the cluster to be $M_{\rm{tot}}=270\pm40$ $\rm{M}_{\odot}$. We also determined a state of cluster's dynamical evolution. We conclude that Trumpler~3 is a young low-massive stellar ensemble with a typical mass function slope, located near to the outer edge of the Galaxy's Orion Spur. As a result of a wide-field search for short period variable stars, 24 variables were discovered in the cluster's area. Only one of them -- a variable of the $γ$-Dor type -- was found to be a likely cluster member.
A Relativistic DFT Study of Water Adsorption on delta-Plutonium (111) Surface
Creators: name: Atta-Fynn, Raymond
name: Ray, Asok K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Scalar-relativistic DFT-GGA has been used to study adsorption of water in molecular and dissociative configurations on delta-Plutonium (111) surface. In molecular state, water is physisorbed in an almost flat-lying orientation at a one-fold coordinated on-top site. The interaction of the water 1b1 orbital and the Pu-6d orbital provides the stability of water on the surface, implying that the Pu-5f electrons remain chemically inert. The co-adsorption cases of partially dissociated and fully dissociated products at the three-fold hollow sites yield chemisorption, coupled with rumpling of the surface layer and delocalization of the Pu-5f electrons and formation of strong ionic bonds.
description: 25 pages (double spaced), 6 figures, 1 table. Chemical Physics Letters (2009), in press
Four new N-phenethylbenzamide derivatives from the stems of piper betle and their antimicrobial activity
Creators: name: Hang, Le Thi Thu
name: Huy, Nguyen Quang
name: Tam, Tran Thi Thanh
name: Huong, Le Thanh
name: Nam, Pham Hoang
name: Dang, Nguyen Hai
name: Quyet-Tien, Phi
name: Trang, Do Thi
name: Yang, Seo Young
name: Tai, Bui Huu
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Four new N-phenethylbenzamide derivatives, named piperbetamides A-D (1–4), and six allylbenzene derivatives (5–10) were isolated from the stems of Piper betle L. Their structures were determined by HR-ESI-MS and NMR spectroscopic methods. Compounds 1–10 were evaluated for their inhibitory effects on the growth of nine microorganisms including five Gram-negative (Escherichia coli, Salmonella enterica serovar Typhimurium, Shigella flexneri, Pseudomonas aeruginosa, and Extended-spectrum beta-lactam resistant Klebsiella pneumoniae), three Gram-positive (Listeria monocytogenes, Methicilin-resistant Staphylococcus aureus, Vancomycin-resistant Enterococcus faecalis), and one yeast (Candida albicans) strains. Compounds 1, 3, 4, 6 and 10 exhibited potential antimicrobial activity against S. flexneri, L. monocytogenes, methicillin-resistant S. aureus and vancomycin-resistant E. faecalis with minimum inhibitory concentration (MIC) values in the range of 16–32 µg/mL.
Isolation of secondary metabolites from Syzygium aromaticum (L.) Merr. & L.M.Perry. (cloves), and evaluation of their biological activities
Creators: name: Kiran, Zareena
name: Khan, Hafiz Nadeem
name: Rasheed, Saima
name: Begum, Sabira
name: Choudhary, M. Iqbal
name: Sara
name: Bano, Zarina
name: Siddiqui, Bina S.
name: Fayyaz, Shahina
name: Iqbal, Erum
name: Hussain, Tooba
name: Lateef, Mehreen
name: Atta-Ur-Rahman
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: Plant Biology

description: Phytochemical investigation of dried flower buds of Syzygium aromaticum (L.) Merr. & L.M.Perry. (clove) led to the isolation and identification of fourteen known compounds, oleanolic acid (1), betulinic acid (2), para methyl benzoic acid (3), sabrinic acid (4) eucalyptolic acid (5), nigricin (6), 3-O-trans-para-coumaroylmaslinic acid (7), methyl maslinate (8), maslinic acid (9), 3, 4, 5-trimethoxy-3′,4′-O,O-methylideneflavellagic acid (10), lantanone (11) 3,4,3′-trimethoxyellagic acid (12), 11-oxo-oleanolic acid (13), and β-sitosterol-3-O-β-D-glucopyranoside (14). Their structures were identified by 1H NMR, 13C NMR, Mass spectroscopic techniques, and comparison with the literature data. Compounds 3, and 7–9 showed a strong mortality against root knot nematode, Meloidogyne incognita at 0.125% concentration after 72 hours (88–92% inhibition). Compound 4 showed a good anti-glycation activity with IC50 = 142.0 ± 1.8 µM when compared with standard, i.e. rutin (IC50 = 54.59 ± 2.20 µM). Compound 10 showed a comparable urease inhibitory activity (IC50 = 26.1 ± 0.19 µM) with the positive control thiourea (IC50 = 24.5 ± 0.34 µM).
AI-enhanced Auto-correction of Programming Exercises: How Effective is GPT-3.5?
Creators: name: Azaiz, Imen
name: Deckarm, Oliver
name: Strickroth, Sven
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computers and Society (cs.CY)
subject: Artificial Intelligence (cs.AI)
subject: Human-Computer Interaction (cs.HC)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Timely formative feedback is considered as one of the most important drivers for effective learning. Delivering timely and individualized feedback is particularly challenging in large classes in higher education. Recently Large Language Models such as GPT-3 became available to the public that showed promising results on various tasks such as code generation and code explanation. This paper investigates the potential of AI in providing personalized code correction and generating feedback. Based on existing student submissions of two different real-world assignments, the correctness of the AI-aided e-assessment as well as the characteristics such as fault localization, correctness of hints, and code style suggestions of the generated feedback are investigated. The results show that 73 % of the submissions were correctly identified as either correct or incorrect. In 59 % of these cases, GPT-3.5 also successfully generated effective and high-quality feedback. Additionally, GPT-3.5 exhibited weaknesses in its evaluation, including localization of errors that were not the actual errors, or even hallucinated errors. Implications and potential new usage scenarios are discussed.
description: accepted to the International Journal of Engineering Pedagogy (iJEP; eISSN: 2192-4880)
Density-dependence of functional development in spiking cortical networks grown in vitro
Creators: name: Ham, Michael I.
name: Gintautas, Vadas
name: Rodriguez, Marko A.
name: Bennett, Ryan A.
name: Maria, Cara L. Santa
name: Bettencourt, Luis M. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: During development, the mammalian brain differentiates into specialized regions with distinct functional abilities. While many factors contribute to functional specialization, we explore the effect of neuronal density on the development of neuronal interactions in vitro. Two types of cortical networks, dense and sparse, with 50,000 and 12,000 total cells respectively, are studied. Activation graphs that represent pairwise neuronal interactions are constructed using a competitive first response model. These graphs reveal that, during development in vitro, dense networks form activation connections earlier than sparse networks. Link entropy analysis of dense net- work activation graphs suggests that the majority of connections between electrodes are reciprocal in nature. Information theoretic measures reveal that early functional information interactions (among 3 cells) are synergetic in both dense and sparse networks. However, during later stages of development, previously synergetic relationships become primarily redundant in dense, but not in sparse networks. Large link entropy values in the activation graph are related to the domination of redundant ensembles in late stages of development in dense networks. Results demonstrate differences between dense and sparse networks in terms of informational groups, pairwise relationships, and activation graphs. These differences suggest that variations in cell density may result in different functional specialization of nervous system tissue in vivo.
description: 10 pages, 7 figures
title: Mineralization in the Bear River Range, Utah-Idaho
Creators: name: Chappelle, John C.
Publisher: name: Utah State University
Year: 1975

description: The purpose of this thesis is t o describe the occurrences, interrelationships, and possible origin of the metallic mineral deposits of the Bear River Range. In this study, 21 mineral deposits containing minerals of lead, iron, copper, manganese, and zinc with quartz and carbonate gangue minerals, are described and classified as low temperature epigenetic hydrothermal deposits. The deposits predominantly occur in Cambrian limestone and dolomite formations located below formations with a high shale content. The deposition occurred as fracture filling and replacement along fractures associated with Teritary Basin and Range normal faults and joints which generally trend northerly in the range. No zoning of the deposits was observed. No obvious source for the mineralizing solutions was observed; however, the presence of iron and magnesium minerals in all of the deposits may suggest the possibility of a metamorphic origin. The deposits are dated as post-Eocene.
Not Just Training, Also Testing: High School Youths' Perspective-Taking through Peer Testing Machine Learning-Powered Applications
Creators: name: Morales-Navarro, L.
name: Shah, M.
name: Kafai, Y. B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computers and Society (cs.CY)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: K.3.2

description: Most attention in K-12 artificial intelligence and machine learning (AI/ML) education has been given to having youths train models, with much less attention to the equally important testing of models when creating machine learning applications. Testing ML applications allows for the evaluation of models against predictions and can help creators of applications identify and address failure and edge cases that could negatively impact user experiences. We investigate how testing each other's projects supported youths to take perspective about functionality, performance, and potential issues in their own projects. We analyzed testing worksheets, audio and video recordings collected during a two week workshop in which 11 high school youths created physical computing projects that included (audio, pose, and image) ML classifiers. We found that through peer-testing youths reflected on the size of their training datasets, the diversity of their training data, the design of their classes and the contexts in which they produced training data. We discuss future directions for research on peer-testing in AI/ML education and current limitations for these kinds of activities.
Ligand exchange in gold-coated FePt nanoparticles
Creators: name: de la Presa, P.
name: Rueda, T.
name: Morales, M. P.
name: Hernando, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work we present the magnetic properties of gold coated FePt nanoparticles and the study of stable aqueous dispersions of FePt@Au and FePt synthesized after ligand exchange with mercaptoundecanoic acid. The particle size determined from TEM micrographs goes from 4 nm for the uncoated nanoparticles to a maximum of 10 nm for the gold coated ones indicating that the thickness of the shell ranges from 1 to 3 nm. The magnetic characterization consists in hysteresis cycles at 10 and 300 K. The results show that, at low field and room temperature, the magnetic behavior of uncoated and coated nanoparticles are surprisingly quite similar. Since the gold coated nanoparticles keep the magnetic properties of FePt and the presence of gold improves the functionalization of nanoparticles, the system is suitable for biological application. Mercaptoundecanoic ligand transfer was used to render water stable nanoparticles in a wide pH range. Transmission electron microscopy and dynamic light scattering results show the nanoparticles slightly agglomerate after ligand exchange. Fourier transform infrared spectroscopy results suggest that thiol bind to the gold atoms of the surface.
description: Intermag 2008, conference paper
title: Investigation of Factors Contributing to the Declining Range Sheep Industry in Utah
Creators: name: Boehme, Jerry W.
Publisher: name: Utah State University
Year: 1975

description: The purpose of this paper is to document the major reasons sheep producers are liquidating their business, and to provide some insight into the present use of land and labor resources taken out of sheep production, Data compiled for the study were obtained from personnel interviews of former sheep producers statistically selected from a master list of all producers who stopped sheep production from 1968 to June 1974. The general characteristics of Utah sheep ranches were presented followed by an analysis of producers who, and the reasons why, they sold their herds, The last section of the report documents the present use of resources taken out of sheep production.
Finding Anomalous Periodic Time Series: An Application to Catalogs of Periodic Variable Stars
Creators: name: Rebbapragada, Umaa
name: Protopapas, Pavlos
name: Brodley, Carla E.
name: Alcock, Charles
Publisher: name: arXiv
Year: 2009
Subjects: subject: Machine Learning (cs.LG)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Catalogs of periodic variable stars contain large numbers of periodic light-curves (photometric time series data from the astrophysics domain). Separating anomalous objects from well-known classes is an important step towards the discovery of new classes of astronomical objects. Most anomaly detection methods for time series data assume either a single continuous time series or a set of time series whose periods are aligned. Light-curve data precludes the use of these methods as the periods of any given pair of light-curves may be out of sync. One may use an existing anomaly detection method if, prior to similarity calculation, one performs the costly act of aligning two light-curves, an operation that scales poorly to massive data sets. This paper presents PCAD, an unsupervised anomaly detection method for large sets of unsynchronized periodic time-series data, that outputs a ranked list of both global and local anomalies. It calculates its anomaly score for each light-curve in relation to a set of centroids produced by a modified k-means clustering algorithm. Our method is able to scale to large data sets through the use of sampling. We validate our method on both light-curve data and other time series data sets. We demonstrate its effectiveness at finding known anomalies, and discuss the effect of sample size and number of centroids on our results. We compare our method to naive solutions and existing time series anomaly detection methods for unphased data, and show that PCAD's reported anomalies are comparable to or better than all other methods. Finally, astrophysicists on our team have verified that PCAD finds true anomalies that might be indicative of novel astrophysical phenomena.
A Search for Neutral Carbon towards two z=4.05 Submillimetre Galaxies, GN20 and GN20.2
Creators: name: Casey, C. M.
name: Chapman, S. C.
name: Daddi, E.
name: Dannerbauer, H.
name: Pope, A.
name: Scott, D.
name: Bertoldi, F.
name: Beswick, R. J.
name: Blain, A. W.
name: Cox, P.
name: Genzel, R.
name: Greve, T. R.
name: Ivison, R. J.
name: Muxlow, T. W. B.
name: Neri, R.
name: Omont, A.
name: Smail, I.
name: Tacconi, L. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using the IRAM Plateau-de-Bure Interferometer (PdBI) we have searched for the upper fine structure line of neutral carbon (CI(2->1), nu_rest = 809 GHz) and 12CO(J=7->6) (nu_rest=806GHz) towards the submillimetre galaxies (SMGs) GN20 (SMM J123711.9+622212, z = 4.055) and GN20.2 (SMM J123708.8+622202, z = 4.051). The far-infrared (FIR) continuum is detected at 8sigma significance in GN20, with a flux density of S_1.8mm = 1.9+-0.2mJy, while no continuum is detected in GN20.2. Both sources are statistically undetected in both CI and CO(7-6) lines; we derive line luminosity limits for both CI and CO of L'
description: 7 pages, 3 figures; accepted for publication in MNRAS
α-Glucosidase inhibitory derivatives of protocetraric acid
Creators: name: Nguyen, Huu-Hung
name: Duong, Thuc-Huy
name: Nguyen, Tran-Van-Anh
name: Do, Thanh-Hung
name: Pham, Duc-Dung
name: Nguyen, Ngoc-Hong
name: Nguyen, Huy Truong
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Hematology

description: Lichen-derived depsidones have been a successful source for alpha-glucosidase inhibitory agents with numerous advantages. In this article, derivatives of protocetraric acids were designed and synthesised. Diels-Alder reaction, esterification, and Friedel-Crafts alkylation of protocetraric acid with different reagents under Lewis acid were performed. Eleven products were prepared, including 10 new compounds and parmosidone A. Among them, compounds 2–4 and 6 had the novel skeletons. The newly synthetic products were evaluated for alpha-glucosidase inhibition. Among tested compounds, 9 showed the strongest activity, with an IC50 value of 5.9 µM. The molecular docking model indicated the consistency between in vitro and in silico data of alpha-glucosidase inhibition.