cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Anomalous radio emission from dust in the Helix
Creators: name: Casassus, S.
name: Readhead, A. C. S.
name: Pearson, T. J.
name: Nyman, L. -A.
name: Shepherd, M. C.
name: Bronfman, L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A byproduct of experiments designed to map the CMB is the recent detection of a new component of foreground Galactic emission. The anomalous foreground at ~ 10--30 GHz, unexplained by traditional emission mechanisms, correlates with 100um dust emission. We report that in the Helix the emission at 31 GHz and 100um are well correlated, and exhibit similar features on sky images, which are absent in Hβ. Upper limits on the 250 GHz continuum emission in the Helix rule out cold grains as candidates for the 31 GHz emission, and provide spectroscopic evidence for an excess at 31 GHz over bremsstrahlung. We estimate that the 100um-correlated radio emission, presumably due to dust, accounts for at least 20% of the 31 GHz emission in the Helix. This result strengthens previous tentative interpretations of diffuse ISM spectra involving a new dust emission mechanism at radio frequencies. Very small grains have not been detected in the Helix, which hampers interpreting the new component in terms of spinning dust. The observed iron depletion in the Helix favors considering the identity of this new component to be magnetic dipole emission from hot ferromagnetic grains. The reduced level of free-free continuum we report also implies an electronic temperature of Te=4600\pm1200K for the free-free emitting material, which is significantly lower than the temperature of 9500\pm500K inferred from collisionally-excited lines (abridged).
description: Accepted for publication in ApJ
Predicting IoT Service Adoption towards Smart Mobility in Malaysia: SEM-Neural Hybrid Pilot Study
Creators: name: Ahmed, Waqas
name: Hizam, Sheikh Muhamad
name: Sentosa, Ilham
name: Akter, Habiba
name: Yafi, Eiad
name: Ali, Jawad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences

description: Smart city is synchronized with digital environment and its transportation system is vitalized with RFID sensors, Internet of Things (IoT) and Artificial Intelligence. However, without user's behavioral assessment of technology, the ultimate usefulness of smart mobility cannot be achieved. This paper aims to formulate the research framework for prediction of antecedents of smart mobility by using SEM-Neural hybrid approach towards preliminary data analysis. This research undertook smart mobility services adoption in Malaysia as study perspective and applied the Technology Acceptance Model (TAM) as theoretical basis. An extended TAM model was hypothesized with five external factors (digital dexterity, IoT service quality, intrusiveness concerns, social electronic word of mouth and subjective norm). The data was collected through a pilot survey in Klang Valley, Malaysia. Then responses were analyzed for reliability, validity and accuracy of model. Finally, the causal relationship was explained by Structural Equation Modeling (SEM) and Artificial Neural Networking (ANN). The paper will share better understanding of road technology acceptance to all stakeholders to refine, revise and update their policies. The proposed framework will suggest a broader approach to individual level technology acceptance.
description: 12 pages, 08 figures, 05 tables
RELATIONSHIP BETWEEN THE ROLE OF THE PRINCIPAL, SCHOOL CLIMATE AND STUDENT ACHIEVEMENT IN SELECTED SECONDARY SCHOOLS IN NIGERIA
Creators: name: Olaniyi, Wilson Olayele
Publisher: name: American University
Year: 2023

description: This study examined the relationship between the self-perceived role of the principal and the perception of school climate held by (a) teachers and (b) students in selected secondary schools in Nigeria. It also examined the relationship between the climate of the school as perceived by (a) teachers and (b) students and academic achievement of students as measured by the West African School Certificate Examination (WASCE) results while controlling for seven demographic variables: local government area, school size, school setting, school composition, sex, age, and years of experience of the principal. Finally, the study examined the relationship between the role of the principal and student achievement over and above the influence of school climate and demographic variables. The self-perceived role of the principal was measured by administering the "Role of the Principal Questionnaire" to the principal of each of the 50 schools selected for the study. The teachers' perceptions of the school climate were measured by administering the "Teacher Opinion Inventory" to 5 teachers in each of the 50 schools selected for the study. The students' perceptions of the school climate were measured by administering the "Student Opinion Inventory" to 60 students in each of the 50 schools selected for the study. The collected data were used to test the study hypotheses through correlation and regression analysis. A .05 level of significance was used as the basis for rejecting or accepting the null hypotheses. Relationships were found between the self-perceived role of the principal and the perceptions of school climate held by teachers and students. Relationships were found between school climate as perceived by teachers and students and student academic achievement as measured by the WASCE results, when demographic variables were controlled. Relationships were also found between the self-perceived role of the principal and student academic achievement over and above the influence of school climate and controlled variables.
RELATIONSHIP BETWEEN THE ROLE OF THE PRINCIPAL, SCHOOL CLIMATE AND STUDENT ACHIEVEMENT IN SELECTED SECONDARY SCHOOLS IN NIGERIA
Creators: name: Olaniyi, Wilson Olayele
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3904
subject: Specialist studies in education

description: This study examined the relationship between the self-perceived role of the principal and the perception of school climate held by (a) teachers and (b) students in selected secondary schools in Nigeria. It also examined the relationship between the climate of the school as perceived by (a) teachers and (b) students and academic achievement of students as measured by the West African School Certificate Examination (WASCE) results while controlling for seven demographic variables: local government area, school size, school setting, school composition, sex, age, and years of experience of the principal. Finally, the study examined the relationship between the role of the principal and student achievement over and above the influence of school climate and demographic variables. The self-perceived role of the principal was measured by administering the "Role of the Principal Questionnaire" to the principal of each of the 50 schools selected for the study. The teachers' perceptions of the school climate were measured by administering the "Teacher Opinion Inventory" to 5 teachers in each of the 50 schools selected for the study. The students' perceptions of the school climate were measured by administering the "Student Opinion Inventory" to 60 students in each of the 50 schools selected for the study. The collected data were used to test the study hypotheses through correlation and regression analysis. A .05 level of significance was used as the basis for rejecting or accepting the null hypotheses. Relationships were found between the self-perceived role of the principal and the perceptions of school climate held by teachers and students. Relationships were found between school climate as perceived by teachers and students and student academic achievement as measured by the WASCE results, when demographic variables were controlled. Relationships were also found between the self-perceived role of the principal and student academic achievement over and above the influence of school climate and controlled variables.
N-terminal [Glu]3 moiety of γ-glutamyl peptides contributes largely to the activation of human calcium-sensing receptor, a kokumi receptor
Creators: name: Yamamoto, Mizuki
name: Terada, Yuko
name: Motoyama, Takayasu
name: Munehisa Shibata
name: Saito, Tsutomu
name: Ito, Keisuke
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
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: Developmental Biology
subject: Science Policy

description: γ-glutamyl peptides have been suggested to impart kokumi properties to foods by activating human calcium-sensing receptor (hCaSR). In this study, the relationship between γ-glutamyl peptide structure and hCaSR activity was systematically analyzed using γ-[Glu](n=0-4)-α-[Glu](n=0-3)-Tyr. Our results suggest that N-terminal [Glu]3 moiety is very important for hCaSR activities of γ-glutamyl peptides.
CRITICAL PHENOMENA AND RENORMALIZATION GROUP
Creators: name: Pustchi, Mahmoud Ebrahimzadeh
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: The properties of condensable classical fluid systems near the critical region and in the intermediate region were considered. The extended renormalization group theory, capable of taking into account the effect of density fluctuations on the thermodynamic functions, developed by Dr. White, was applied to a type of pressure potential that consists of two terms: one due to the repulsive interactions and another one due to averaged attractive interactions. A set of recursion relations for incorporating effects of fluctuations were evaluated from the theory for the thermodynamic functions. The theory was applied to the Percus-Yevick pressure potential derived from the compressibility equation and the Carnahan-Starling equation for the pressure of a hard sphere gas. The mentioned potentials were considered with the addition of a mean field attraction term. The recursion relations for these two potentials were evaluated numerically for several isotherms. Theoretical coexistence curves derived from the numerical values of isothermal pressures and chemical potentials were compared with experimental data summarized in the paper by Guggenheim (1945). The theoretical isothermal pressure curves were compared to the experimental data of Pitzer (1955). Numerical values of exponents (beta) and (gamma) resulting from the theory were compared to Moldover's experimental data (1976). Numerical results in terms of the two different potentials used were almost the same except for small changes in the values of the parameters. The theoretical coexistence curve, isothermal pressure curves, and critical compressibility factor Z(,c) are consistent with the experimental data considered. The theoretical values of exponents (beta) and (gamma) agree with experimental values close to the critical point and vary consistently with experimental results when one gets away from the critical point.
One-loop corrections to the metastable vacuum decay
Creators: name: Baacke, Jurgen
name: Lavrelashvili, George
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We evaluate the one-loop prefactor in the false vacuum decay rate in a theory of a self interacting scalar field in 3+1 dimensions. We use a numerical method, established some time ago, which is based on a well-known theorem on functional determinants. The proper handling of zero modes and of renormalization is discussed. The numerical results in particular show that quantum corrections become smaller away from the thin-wall case. In the thin-wall limit the numerical results are found to join into those obtained by a gradient expansion.
description: 31 pages, 7 figures
CRITICAL PHENOMENA AND RENORMALIZATION GROUP
Creators: name: Pustchi, Mahmoud Ebrahimzadeh
Publisher: name: American University
Year: 2023

description: The properties of condensable classical fluid systems near the critical region and in the intermediate region were considered. The extended renormalization group theory, capable of taking into account the effect of density fluctuations on the thermodynamic functions, developed by Dr. White, was applied to a type of pressure potential that consists of two terms: one due to the repulsive interactions and another one due to averaged attractive interactions. A set of recursion relations for incorporating effects of fluctuations were evaluated from the theory for the thermodynamic functions. The theory was applied to the Percus-Yevick pressure potential derived from the compressibility equation and the Carnahan-Starling equation for the pressure of a hard sphere gas. The mentioned potentials were considered with the addition of a mean field attraction term. The recursion relations for these two potentials were evaluated numerically for several isotherms. Theoretical coexistence curves derived from the numerical values of isothermal pressures and chemical potentials were compared with experimental data summarized in the paper by Guggenheim (1945). The theoretical isothermal pressure curves were compared to the experimental data of Pitzer (1955). Numerical values of exponents (beta) and (gamma) resulting from the theory were compared to Moldover's experimental data (1976). Numerical results in terms of the two different potentials used were almost the same except for small changes in the values of the parameters. The theoretical coexistence curve, isothermal pressure curves, and critical compressibility factor Z(,c) are consistent with the experimental data considered. The theoretical values of exponents (beta) and (gamma) agree with experimental values close to the critical point and vary consistently with experimental results when one gets away from the critical point.
INDUCTION OF GENE AMPLIFICATION IN PLASMODIUM FALCIPARUM (METHOTREXATE, DIHYDROFOLATE REDUCTASE, MALARIA, THYMIDYLATE SYNTHETASE, RESISTANCE)
Creators: name: Rogers, Patricia L.
Publisher: name: American University
Year: 2023

description: Human erythrocytic in vitro cultures of the Honduras I strain of the malaria parasite Plasmodium falciparum have been stressed stepwise with increasing concentrations of methotrexate (MTX), a folate antagonist. This selection has produced a strain that is 450 times more resistant to the drug than the original culture. Uptake of sublethal doses of radiolabeled MTX by infected red blood cells was 6-36 times greater in the resistant cultures than in the nonresistant controls. DNA isolated from all of the parasites was probed by hybridization with ('35)S-labeled DNA derived from a clone of the yeast thymidylate synthetase (TS) gene. This showed 50 to 100 times more copies of the gene in the resistant parasites than in the control. The increased hybridization of the TS probe to the DNA from the resistant parasites is direct evidence of gene amplification because DHFR and TS are actually one and the same bifunctional enzyme in P. falciparum. Hence, the evidence presented indicates that induced resistance of the malaria parasite to MTX in this case is due to overproduction of DHFR resulting from amplification of the DHFR-TS gene.
INDUCTION OF GENE AMPLIFICATION IN PLASMODIUM FALCIPARUM (METHOTREXATE, DIHYDROFOLATE REDUCTASE, MALARIA, THYMIDYLATE SYNTHETASE, RESISTANCE)
Creators: name: Rogers, Patricia L.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences

description: Human erythrocytic in vitro cultures of the Honduras I strain of the malaria parasite Plasmodium falciparum have been stressed stepwise with increasing concentrations of methotrexate (MTX), a folate antagonist. This selection has produced a strain that is 450 times more resistant to the drug than the original culture. Uptake of sublethal doses of radiolabeled MTX by infected red blood cells was 6-36 times greater in the resistant cultures than in the nonresistant controls. DNA isolated from all of the parasites was probed by hybridization with ('35)S-labeled DNA derived from a clone of the yeast thymidylate synthetase (TS) gene. This showed 50 to 100 times more copies of the gene in the resistant parasites than in the control. The increased hybridization of the TS probe to the DNA from the resistant parasites is direct evidence of gene amplification because DHFR and TS are actually one and the same bifunctional enzyme in P. falciparum. Hence, the evidence presented indicates that induced resistance of the malaria parasite to MTX in this case is due to overproduction of DHFR resulting from amplification of the DHFR-TS gene.
The principal eigenvector of contact matrices and hydrophobicity profiles in proteins
Creators: name: Bastolla, Ugo
name: Porto, Markus
name: Roman, H. Eduardo
name: Vendruscolo, Michele
Publisher: name: arXiv
Year: 2004
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: With the aim to study the relationship between protein sequences and their native structures, we adopt vectorial representations for both sequence and structure. The structural representation is based on the Principal Eigenvector of the fold's contact matrix (PE). As recently shown, the latter encodes sufficient information for reconstructing the whole contact matrix. The sequence is represented through a Hydrophobicity Profile (HP), using a generalized hydrophobicity scale that we obtain from the principal eigenvector of a residue-residue interaction matrix and denote it as interactivity scale. Using this novel scale, we define the optimal HP of a protein fold, and predict, by means of stability arguments, that it is strongly correlated with the PE of the fold's contact matrix. This prediction is confirmed through an evolutionary analysis, which shows that the PE correlates with the HP of each individual sequence adopting the same fold and, even more strongly, with the average HP of this set of sequences. Thus, protein sequences evolve in such a way that their average HP is close to the optimal one, implying that neutral evolution can be viewed as a kind of motion in sequence space around the optimal HP. Our results indicate that the correlation coefficient between N-dimensional vectors constitutes a natural metric in the vectorial space in which we represent both protein sequences and protein structures, which we call Vectorial Protein Space. In this way, we define a unified framework for sequence to sequence, sequence to structure, and structure to structure alignments. We show that the interactivity scale is nearly optimal both for the comparison of sequences with sequences and sequences with structures.
description: 13 pages, 3 figures, 2 tables
GENERAL STRATEGIES OF CHRONOLOGICALLY DISTANT UKRAINIAN RETRANSLATIONS OF SHAKESPEARE’S PLAYS
Creators: name: Ya., Boiko
Publisher: name: Sciences of Europe
Year: 2021
Subjects: diachronic plurality in translations
chronologically distant retranslations
translation strategy
domestication / foreignization
historization / modernization.

description: The article substantiates the general strategies of chronologically distant Ukrainian retranslations of Shakespeare’s plays. Factors that influence the existence of diachronic plurality in translations are analyzed. The specifics of the term “translation strategy” are defined. The theoretical basis for studying the general strategies in chronologically distant Ukrainian retranslations of Shakespeare’s plays such as domestication / foreignization and historization / modernization is analyzed and the tactics that implement these strategies are presented. A classification of alternative strategies in chronologically distant retranslations is provided. The factors triggered the choice of translation strategy in chronologically distant Ukrainian retranslations of Shakespeare’s plays are determined.
MICROHARDNESS AND COMPRESSIVE STRENGTH OF FUNCTIONALLY GRADED Ti/HA BIOMATERIALS
Creators: name: Oleiwi, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 90301 Biomaterials
subject: FOS: Medical engineering
subject: 91205 Functional Materials
subject: FOS: Materials engineering
subject: 110501 Dental Materials and Equipment
subject: FOS: Clinical medicine
subject: 91202 Composite and Hybrid Materials
subject: 91299 Materials Engineering not elsewhere classified

description: Functionally graded materials Titanium/Hydroxyapatite (Ti/HA) at three weight percents of composition (n=0.8, 1 and 1.2) have been fabricated. Five layers were prepared in FGMs graded from 1st layer as pure Ti to 5th layer as HA with homogeneous gradient in composition for the other layers. Some mechanical properties were measured for fabricated FGMs include microhardness, compression,modulus of elasticity and Poisson‟s ratio. The results showed that the microhardness increases from 1st layer to 5th layer. While for the same layer, microhardness decreases with increasing (n) value due to decreasing HA percent in layer. On other hand, compressive strength increases with increasing (n) value due to increasing Ti percent in same layer. The modulus of elasticity and Poisson‟s ratio were calculated for fabricated FGMs, and theresults showed the decreasing of elasticity and Poisson‟s ration from 1st layer (Ti) to 5th layer (HA) because of brittleness of ceramic hydroxyapatite. This gradient in mechanical properties candidates the fabricated FGM to use it as biomaterial because of approaching to mechanical properties of bone in body
title: Λεμφώματα Hodgkin. Συγκριτική μελέτη δόσεων ακτινοθεραπείας
title: Hodgkin’s Lymphomas comparative study of doses in Radiation therapy
titleType: AlternativeTitle
Creators: name: Ταχτσίδου, Κωνσταντίνα
name: Κοντοπύργια, Νικολέττα -Ξένη
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Λεμφώματα
Hodgkin
Non Hodgkin
Ακτινοθεραπεία

description: Την τελευταία δεκαετία οι εξελίξεις στην διάγνωση και θεραπεία των λεμφωμάτων Hodgkin και non Hodgkin είναι ραγδαίες. Τα λεμφώματα αποτελούν μια ετερογενή ομάδα νοσημάτων, όπου κακοήθη νεοπλασματικά λεμφοκύτταρα συσσωρεύονται στους λεμφαδένες δίνοντας κλινικά χαρακτηριστικά λεμφαδενοπάθειας. Η διάκριση των Hodgkin και Non Hodgkin γίνεται από τη παρουσία των RS κακοηθών κυττάρων ή όχι αντίστοιχα. Το ανθρώπινο λεμφικό σύστημα επηρεάζει άμεσα το ανοσοποιητικό. Η λέμφος κυκλοφορεί σε άνω κάτω άκρα, τη θωρακική , κοιλιακή, βουβωνική χώρα και το τράχηλο. Η ταξινόμηση τους ιστολογικά είναι κατά REAL/WHO,Ann ARBOR, Cotswold και τροποποίηση Lugano.Η διάγνωση γίνεται με ιστορικό, ψηλάφηση, εργαστηριακές απεικονιστικές εξετάσεις και βιοψία. Κύριος προγνωστικός παράγοντας είναι το στάδιο,η ηλικία και το φύλο. Τα ευρήματα ποικίλλουν ανάλογα την έκταση και τύπο της νόσου .Στόχος είναι καταστροφή των καρκινικών κυττάρων με όσο το δυνατόν λιγότερες παρενέργειες. Τα πεδία ΑΚΘ ποικίλλουν και στοχεύουν στην ομοιογενή κατανομή της δόσης .Τα κύρια πεδία θεραπείας, είναι το εκτεταμένο όπου περιλαμβάνει το μανδύα , το ανεστραμμένο Υ και την ολική ακτινοβόληση (μανδύας+ Υ), και το περιορισμένο πεδίο .Στη συνδυαστική θεραπεία πρώτη δίνεται η χημειοθεραπεία που θεωρείται η πιο συχνή μέθοδος. Συχνά χρησιμοποιούμενες τεχνικές ΑΚΘ είναι IMRT ,IGRT , και 3DCRT. Οι παρενέργειες έχουν ελαττωθεί αρκετά, οι πιο συχνές είναι οι άμεσες ,παροδικές και όψιμες. Μετά το πέρας της θεραπείας απαιτείται στενή παρακολούθηση του ασθενούς για τουλάχιστον 5 χρόνια. Η αξιολόγηση του αποτελέσματος γίνεται με Αξονική και PET/ CT.Σήμερα τείνουν τα πεδία να είναι μόνο οι πάσχουσες περιοχές IFRT και οι προσβεβλημένοι λεμφαδένες INRT.Στη νόσο Hodgkin η δόση είναι 20-36 Gy και στο Νon Hodgkin είναι 34-46 Gy.Το εκτεταμένο πεδίο προκαλεί αυξημένη τοξικότητα .Το πεδίο μανδύα αφορά το τράχηλο, τη μασχάλη και το στήθος. Το ανεστραμμένο Υ αφορά τις υποδιαφραγματικές εκδηλώσεις, και τα δύο δίνονται σπανίως. Στο περιορισμένο πεδίο κυριαρχεί η τεχνική ISRT, με μικρότερη τοξικότητα και υψηλή ανταπόκριση.
$\mathcal{H}_2$ performance of series-parallel networks: A compositional perspective
Creators: name: de Badyn, Mathias Hudoba
name: Mesbahi, Mehran
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We examine the $\mathcal{H}_2$ norm of matrix-weighted leader-follower consensus on series-parallel networks. By using an extension of electrical network theory on matrix-valued resistances, voltages and currents, we show that the computation of the $\mathcal{H}_2$ norm can be performed efficiently by decomposing the network into atomic elements and composition rules. Lastly, we examine the problem of efficiently adapting the matrix-valued edge weights to optimize the $\mathcal{H}_2$ norm of the network.
description: Provisionally accepted to the IEEE Transactions on Automatic Control. arXiv admin note: substantial text overlap with arXiv:1903.05325
Streptocarpus ionanthus subsp. grandifolius Christenh. 2012, comb. nov.
Creators: name: Christenhusz, Maarten J. M.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Gesneriaceae
Streptocarpus
Streptocarpus ionanthus
Streptocarpus ionanthus subsp. grandifolius (b.l.burtt) christenh.

description: Streptocarpus ionanthus subsp. grandifolius (B.L.Burtt) Christenh., comb. nov.
 Basionym: Saintpaulia grandifolia B.L. Burtt (1958: 560).
 Type: TANZANIA. Lushoto Distr.: West Usambara Mountains, Lutindi, 1 July 1955, Punter ref. S, cultivated at R. B. G. Edinburgh, C1575 (holotype E!, isotype E!).
 Homotypic synonym: Saintpaulia ionantha subsp. grandifolia (B.L.Burtt) I.Darbysh.
 Heterotypic synonym: Saintpaulia ulugurensis Haston
description: Published as part of Christenhusz, Maarten J. M., 2012, On African violets and Cape primroses-towards a monophyletic Streptocarpus (Gesneriaceae), pp. 3-9 in Phytotaxa 46 on page 6, DOI: 10.11646/phytotaxa.46.1.2, http://zenodo.org/record/4814794
TEST ANXIETY, LOCUS OF CONTROL AND MATHMATICS ACHIEVEMENT PLACEMENT AS CORRELATES TO ACHIEVEMENT IN MATHEMATICS BY STUDENTS IN JUNIOR HIGH SCHOOL
Creators: name: Medin, Julia Adele
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3901
subject: Curriculum and pedagogy

description: This study proposed: (1) to determine the relationship of test anxiety, locus of control and mathematics achievement placement to mathematics achievement in 7th and 8th grade students and (2) to draw implications from the findings regarding the need for instructional attention to these constructs as a means of enhancing mathematics achievement of students in junior high school. The Nowicki-Strickland Locus of Control Scale for Children and the Sarason Test Anxiety Scale for Children were used, respectively, to measure the locus-of-control orientation (internal or external) and the anxiety felt in testing situations by each study subject. Both tests were administered to each of 206 students (95 girls and 111 boys) in January, 1985 by the investigator in the two schools in which the students attended. Each student was enrolled in a below-average, on-grade or accelerated mathematics class in the Montgomery County (Maryland) School System at the time of data collection. Student records were analyzed for covariate data (reading level, aptitude) as reported on the California Achievement Test. Mathematics achievement of each student was determined by the mathematics stanine listed on the student's record of California Achievement Test results. Findings were that the seventh and eighth grade study subjects in below-average mathematics classes experienced more anxiety and were more external in locus-of-control orientation (felt less in control of their successes and failures) than were students in either on-grade or accelerated mathematics classes. Using the F test in an analysis of covariance, anxiety was found to be significantly related to mathematics achievement at the p < .05 level. The interaction of locus of control and mathematics placement level was also found to be significantly related to mathematics achievement at the p < .05 level. Finally mathematics placement level was found to be significantly related to mathematics achievement at the p < .05 level, suggesting that students achieve to the level of expectancy. The investigator recommended that an experimental program could be established to develop better teaching techniques and modified curricula for more effective teaching of these below-average mathematics achievers.
Generalized Measurement and Conclusive Teleportation with Nonmaximal Entanglement
Creators: name: Kim, Hyunjae
name: Cheong, Yong Wook
name: Lee, Hai-Woong
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present linear optical schemes to perform generalized measurements for conclusive teleportation when the sender and the receiver share nonmaximal entanglement resulting from amplitude errors during propagation or generation. Three different cases are considered for which the states to be teleported are unknown superpositions of (a) single-photon and vacuum states, (b) vertically-polarized and horizontally-polarized photon states, and (c) two coherent states of opposite phases. The generalized measurement scheme for each case is analyzed, which indicates that the success probability is much more resistant to amplitude errors for case (c) than for case (a) or (b).
description: 8 pages, 8 figures, Two columns, LaTex2e
THE REALITY OF METHODS ORGANIZING EXPERIENTIAL AND CAREER-ORIENTED ACTIVITIES AT SECONDARY SCHOOLS IN QUANG NINH PROVINCE
Creators: name: Vũ Thanh Hòa
name: Trần Thị Hòa
Publisher: name: Sciences of Europe
Year: 2021
Subjects: methods
experiential
career-oriented
secondary schools
organizing.

description: In this article, the authors focused on analyzing the actual methods of organizing experiential and careeroriented activities at secondary schools in Quang Ninh province (Experiential practice; Discovery; Dedication; Research).
Constraints on Cardassian Scenario from the Expansion Turnaround Redshift and the Sunyaev-Zeldovich/X-ray Data
Creators: name: Zhu, Zong-Hong
name: Fujimoto, Masa-Katsu
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Cosmic acceleration is one of the most remarkable cosmological findings of recent years. Although a dark energy component has usually been invoked as the mechanism for the acceleration, A modification of Friedmann equation from various higher dimensional models provides a feasible alternative. Cardassian expansion is one of these scenarios. In this work, we first consider the constraints on the parameter space from the turnaround redshift, z_{q=0}, at which the universe switches from deceleration to acceleration. We show that, for every Omega_m, there exist a unique n_{peak} (Omega_m), which makes z_{q=0} reach its maximum value, [z_{q=0}]_{max} = exp[1/ (2-3n_{peak})] -1, which is unlinearly inverse to Omega_m. If the acceleration happans earlier than z_{q=0} = 0.6, suggested by Type Ia supernovae measurements, we have Omega_m < 0.328 no matter what the power index is, and moreover, for reasonable matter density, Omega_m ~ 0.3, it is found n ~ (-0.45,0.25). We next test this scenario using the Sunyaev-Zeldovich/X-ray data of a sample of 18 galaxy clusters with 0.14 < z < 0.83 compiled by Reese et al. (2002). The constraints from the current SZ/X-ray data is weak, though a model with lower matter density is prefered. A certain range of the model parameters is also consistent with the data.
description: 18 pages, 4 figures, accepted for publication in ApJ
Supplementary Material from Vocal production learning in the pale spear-nosed bat, Phyllostomus discolor
Creators: name: Lattenkamp, Ella Z.
name: Vernes, Sonja C.
name: Wiegrebe, Lutz
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: This file includes supplementary Tables S1-S3 and supplementary figures S1-S4.
Hyperon-nuclear interactions from SU(3) chiral effective field theory
Creators: name: Petschauer, Stefan
name: Haidenbauer, Johann
name: Kaiser, Norbert
name: Meißner, Ulf-G.
name: Weise, Wolfram
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The interaction between hyperons and nucleons has a wide range of applications in strangeness nuclear physics and is a topic of continuing great interest. These interactions are not only important for hyperon-nucleon scattering but also essential as basic input to studies of hyperon-nuclear few- and many-body systems including hypernuclei and neutron star matter. We review the systematic derivation and construction of such baryonic forces from the symmetries of quantum chromodynamics within non-relativistic SU(3) chiral effective field theory. Several applications of the resulting potentials are presented for topics of current interest in strangeness nuclear physics.
description: review article, 37 pages, 19 figures, 5 tables
Objective and subjective barriers to physical exercise for university students
Creators: name: Leong, Elizabeth
name: Xu, Suzanne
name: Zhou, Yuan
Publisher: name: The University of British Columbia
Year: 2015

description: In this study, we investigated whether the likelihood for University of British Columbia (UBC) students to meet the Public Health Agency of Canada’s (PHAC) recommended physical activity guideline of 150 minutes of moderate to strenuous exercise per week was impacted by their commuting demands, course load and access to fitness facilities. Data was collected through convenience sampling on campus, with a self-report questionnaire administered on iPads. Participants’ objective and subjective barriers to exercise were both measured through the questionnaire. Results indicate that not only are UBC students not meeting the fitness guidelines, but also that they are subjectively attributing their lack of exercise to their course load. However, in regards to objective measures, we did not find any significant correlations between students’ course load or commuting demands and their level of physical exercise. This suggests that students are overestimating how much course load influences their exercise. We did, however, find a significant positive correlation between the cost students are paying for their fitness facilities and their total exercise time. Physical exercise is an important factor for the overall well-being of UBC students, which in turn can affect their academic performance. Thus, UBC should be interested in the implications that this research has on their student life. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Streptocarpus ionanthus subsp. nitidus Christenh. 2012, comb. nov.
Creators: name: Christenhusz, Maarten J. M.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Gesneriaceae
Streptocarpus
Streptocarpus ionanthus
Streptocarpus ionanthus subsp. nitidus (b.l.burtt) christenh.

description: Streptocarpus ionanthus subsp. nitidus (B.L.Burtt) Christenh., comb. nov.
 Basionym: Saintpaulia nitida Burtt (1958: 564).
 Type: TANZANIA. Morogoro Distr.: Ngura Mountains, near Morogoro, August 1959, Harvey Cox ref. A, cultivated at R. B. G. Edinburgh, C1557 (holotype E!, isotypes E!, K! 2 sheets).
 Homotypic synonym: Saintpaulia ionantha subsp. nitida (B.L.Burtt) I.Darbysh.
description: Published as part of Christenhusz, Maarten J. M., 2012, On African violets and Cape primroses-towards a monophyletic Streptocarpus (Gesneriaceae), pp. 3-9 in Phytotaxa 46 on page 7, DOI: 10.11646/phytotaxa.46.1.2, http://zenodo.org/record/4814794
Supplementary material from The hidden army: corallivorous crown-of-thorns seastars can spend years as herbivorous juveniles
Creators: name: Dione J. Deaker
name: Agüera, Antonio
name: Huang-An Lin
name: Lawson, Corinne
name: Budden, Claire
name: Dworjanyn, Symon A.
name: Mos, Benjamin
name: Byrne, Maria
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology

description: Supporting material for the manuscript including extended methodologies and the output from data models
TEST ANXIETY, LOCUS OF CONTROL AND MATHMATICS ACHIEVEMENT PLACEMENT AS CORRELATES TO ACHIEVEMENT IN MATHEMATICS BY STUDENTS IN JUNIOR HIGH SCHOOL
Creators: name: Medin, Julia Adele
Publisher: name: American University
Year: 2023

description: This study proposed: (1) to determine the relationship of test anxiety, locus of control and mathematics achievement placement to mathematics achievement in 7th and 8th grade students and (2) to draw implications from the findings regarding the need for instructional attention to these constructs as a means of enhancing mathematics achievement of students in junior high school. The Nowicki-Strickland Locus of Control Scale for Children and the Sarason Test Anxiety Scale for Children were used, respectively, to measure the locus-of-control orientation (internal or external) and the anxiety felt in testing situations by each study subject. Both tests were administered to each of 206 students (95 girls and 111 boys) in January, 1985 by the investigator in the two schools in which the students attended. Each student was enrolled in a below-average, on-grade or accelerated mathematics class in the Montgomery County (Maryland) School System at the time of data collection. Student records were analyzed for covariate data (reading level, aptitude) as reported on the California Achievement Test. Mathematics achievement of each student was determined by the mathematics stanine listed on the student's record of California Achievement Test results. Findings were that the seventh and eighth grade study subjects in below-average mathematics classes experienced more anxiety and were more external in locus-of-control orientation (felt less in control of their successes and failures) than were students in either on-grade or accelerated mathematics classes. Using the F test in an analysis of covariance, anxiety was found to be significantly related to mathematics achievement at the p < .05 level. The interaction of locus of control and mathematics placement level was also found to be significantly related to mathematics achievement at the p < .05 level. Finally mathematics placement level was found to be significantly related to mathematics achievement at the p < .05 level, suggesting that students achieve to the level of expectancy. The investigator recommended that an experimental program could be established to develop better teaching techniques and modified curricula for more effective teaching of these below-average mathematics achievers.
Physical and Mechanical Properties Estimation of TiHAP Functionally Graded Material Using Artificial Neural Network
Creators: name: Oleiwi, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 90301 Biomaterials
subject: FOS: Medical engineering
subject: 91202 Composite and Hybrid Materials
subject: FOS: Materials engineering
subject: 91299 Materials Engineering not elsewhere classified

description: This study presents the effort in applying neural network-based system identification techniques by using Back- propagation algorithm to predict some physical mechanical properties of functionally graded and composite samples from Ti/HAP, these samples were fabricated by powder metallurgy method at various volume fraction of hydroxyapatite and at n equal (0.8, 1, and 1.2). Because of important of advanced materials such as FGMs as alternative industrial material, it is necessary to measure the physical properties of these materials such as porosity, density, hardness, compression …etc. Therefore the ANN will be used to estimate these properties and give a good performance to the network.
The Fishnet as Anti-ferromagnetic Phase of Worldsheet Ising Spins
Creators: name: Thorn, Charles B.
name: Tran, Tuan A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We identify the strong coupling fishnet diagram with a certain Ising spin configuration in the lightcone worldsheet description of planar TrΦ^3 field theory. Then, using a mean field formalism, we take the remaining planar diagrams into account in an average way. The fishnet spin configuration requires two mean fields ϕ,ϕ' where the fishnet diagram is the case ϕ=1,ϕ'=0. For general values of these fields, the system is then approximated as a light-cone quantized string with a field dependent effective string tension T_{eff}(ϕ,ϕ'). We also calculate the worldsheet energy density E(ϕ,ϕ'), and find the field values that minimize it in the presence of a transverse space infra-red cutoff ε>0. The criterion for string formation is that the tension in this minimum energy state remains non-zero as εgoes to 0. In the most simple-minded implementation of the mean field method, we find that the tension vanishes for weak and moderate coupling, but for very large coupling stays non-zero. A more elaborate treatment, taking temporal correlations into account, removes this ``phase transition'' and the string tension of the minimum energy state vanishes for all values of the coupling when εgoes to 0. Our mean field analysis thus suggests that the ``fishnet phase'' of TrΦ^3 theory is unstable, and there is no string formation for any value of the coupling. This is probably a reasonable outcome given the instability of the underlying theory.
description: 39 pages, 42 figures
Witten-Veneziano from Green-Schwarz
Creators: name: Armoni, Adi
Publisher: name: arXiv
Year: 2004
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 U(1) problem within the AdS/CFT framework. We explain how the Witten-Veneziano formula for the eta' mass is related to a generalized Green-Schwarz mechanism. The closed string mode, that cancels the anomaly of the gauged U(1) axial symmetry, is identified with the eta' meson. In a particular set-up of D3-branes on a C3/(Z3xZ3) orbifold singularity, the eta' meson is a twisted-sector R-R field.
description: 10 pages, LaTex. 1 eps figure. v2: minor changes, refs. added, to appear in JHEP
Detection and Classification of Astronomical Targets with Deep Neural Networks in Wide Field Small Aperture Telescopes
Creators: name: Jia, Peng
name: Liu, Qiang
name: Sun, Yongyang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Wide field small aperture telescopes are widely used for optical transient observations. Detection and classification of astronomical targets in observed images are the most important and basic step. In this paper, we propose an astronomical targets detection and classification framework based on deep neural networks. Our framework adopts the concept of the Faster R-CNN and uses a modified Resnet-50 as backbone network and a Feature Pyramid Network to extract features from images of different astronomical targets. To increase the generalization ability of our framework, we use both simulated and real observation images to train the neural network. After training, the neural network could detect and classify astronomical targets automatically. We test the performance of our framework with simulated data and find that our framework has almost the same detection ability as that of the traditional method for bright and isolated sources and our framework has 2 times better detection ability for dim targets, albeit all celestial objects detected by the traditional method can be classified correctly. We also use our framework to process real observation data and find that our framework can improve 25 % detection ability than that of the traditional method when the threshold of our framework is 0.6. Rapid discovery of transient targets is quite important and we further propose to install our framework in embedded devices such as the Nvidia Jetson Xavier to achieve real-time astronomical targets detection and classification abilities.
description: Accepted by Astronomical Journal. The complete code can be downloaded from https://doi.org/10.12149/101016. This code can be directly used to process images obtained by WFSATs. Images obtained by ordinary sky survey telescopes can also be processed with this code, however more annotated images are required to train the neural network
Physical-resource demands for scalable quantum computation
Creators: name: Caves, Carlton M.
name: Deutsch, Ivan H.
name: Blume-Kohout, Robin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The primary resource for quantum computation is Hilbert-space dimension. Whereas Hilbert space itself is an abstract construction, the number of dimensions available to a system is a physical quantity that requires physical resources. Avoiding a demand for an exponential amount of these resources places a fundamental constraint on the systems that are suitable for scalable quantum computation. To be scalable, the number of degrees of freedom in the computer must grow nearly linearly with the number of qubits in an equivalent qubit-based quantum computer.
description: This paper will be published in the proceedings of the SPIE Conference on Fluctuations and Noise in Photonics and Quantum Optics, Santa Fe, New Mexico, June 1--4, 2003