cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
LEVEL OF POLLUTION LOAD ALONG THE BATANG ARAU RIVER IN PADANG CITY IN 2019 AND THE ABILITY OF BIOFILTER IN IMPROVING THE WATER QUALITY
Creators: name: Sari Arlinda
name: Suksmerri
name: Mukhlis
name: Yulnafatmawita
Publisher: name: Zenodo
Year: 2024
Subjects: Water Quality, Pollution Load, BOD, COD, TSS, Anaerob Biofilter.

description: Abstract

Batang Arau is a river passing urban area of Padang city, the capital of West Sumatra Indonesia, which is used by local people either for domestic, agriculture, or for industries.  However, the river is also used by people for throwing their waste, liquid and solid wate, in increasing amount by time. Meanwhile, people still used the water of the river to fulfill their needs. Therefore, this research was aimed to determine the pollution load of the wter along the BatangArau River. Water samples were taken from 6 different locations (1. Ngalau Indarung, 2 Koto Lalang 3. Teluk Luas, 4. Jembatan Ujung Tanah, 5. Jembatan Kecamatan Padang Selatan, and 6. Muaro) from the upper to the lower part of the river.  Parameters analyzed for the water were BOD, COD, TSS, pH and temperature. Based on laboratory analyses, it was found that the pollution load increased as the river became closer to the estuary. The water temperature ranged between 28 to 34, and the water pH was 5.5 to 7.0. The highest pollution load was found in the estuary (in Muaro) having BOD was 6,060.1 kg d-1, COD was 28,537.9 kg d-1, and TSS was 40,435.2 kg d-1. Based on water quality standard published by PP_RI No.82 year 2001, it could be concluded that the river water along Batang Arau was polluted. The level of being polluted was categorized as level II at the upper part (location 1 and 2) and IV at the estuary. Among the parameters, the value of BOD was very bad.  By using anaerob biofilter, the quality of the water of the Batang Arau River was improved from level IV to level II. This was due to the COD decreased by approximately 73%, BOD by 84%, and TSS by 77%. It was suggested people to process the water using the anaerob biofilter before using it, besides regulation from local government is strongly needed in managing the water of the Batang Arau River.
Exact NLO strong interaction corrections to the Delta F=2 effective Hamiltonian in the MSSM
Creators: name: Virto, Javier
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the order alpha_s^3 (next-to-leading) corrections to the Wilson coefficients of the Delta F=2 effective Hamiltonian in the Minimal Supersymmetric Standard Model with completely arbitrary soft terms. These results are relevant for phenomenological studies of neutral meson mixings in the presence of large squark mass splittings, in particular in hierarchical scenarios of supersymmetry. These corrections achieve a considerable reduction of the uncertainty related to the matching scale ambiguity, and are therefore numerically relevant. We briefly analyze the effect of certain mass splittings on the size of the NLO corrections, and compare it with the case of almost degenerate squarks in the mass insertion approximation.
description: 31 pages, 4 figures. Minor corrections, added appendix
Properties of the $η$ and $η^{\prime}$ mesons: Masses, decay constants and gluonic matrix elements
Creators: name: Bali, Gunnar S.
name: Collins, Sara
name: Simeth, Jakob
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present results for the $η$ and $η^\prime$ masses and their four independent decay constants at the physical point as well as their anomalous gluonic matrix elements $a_{η^{(\prime)}}$. The chiral and continuum limit extrapolation is performed on twenty-one $N_f = 2+1$ Coordinated Lattice Simulations (CLS) ensembles with non-perturbatively improved Wilson fermions at four different lattice spacings and along two trajectories in the quark mass plane, including one ensemble very close to physical quark masses. For the first time the decay constants are determined directly from the axialvector matrix elements without model assumptions. This allows us to study their QCD scale dependence and to determine all low-energy constants contributing at next-to-leading order in large-$N_c$ ChPT at a well defined QCD renormalization scale. We also discuss higher excited states in the $1400\,\mathrm{MeV}$ region.
description: 16 pages, 9 figures. Joint proceedings for talks at the 38th International Symposium on Lattice Field Theory, LATTICE2021, 26th-30th July, 2021, Zoom/Gather@Massachusetts Institute of Technology
Transitivity, identity conservation and equivalence conservation of a solid continuous quantity
Creators: name: Humphrey, Gary Keith
Publisher: name: University of British Columbia
Year: 2010

description: An investigation into the distinction between identity conservation and equivalence conservation, as presented by Elkind (1967) was examined in the content area of solid continuous quantity. One group of subjects received the tasks as outlined by Elkind (Group I) while another group of subjects received modified versions of the tasks (Group II). Each conservation task was presented at two levels of transformation; moderate and extreme. In addition transitivity of solid continuous quantity was examined in relationship to conservation. The sample consisted of 144 subjects; 48 Kindergarten, Grade one and Grade two students. Half of the subjects within each grade level were assigned to Group I, the other half was assigned to Group II. Within each group half of the children were male and half were female. An analysis of variance performed on the conservation tasks indicated that identity and equivalence conservation were of equal difficulty. The main effects of Group and Age were significant and the interaction of Sex x Grade was significant. The criterion factor of judgment only vs. judgment plus explanation was found to have a significant effect, with more trials passed with a judgment only criterion. Data were scored according to two different procedures; oneyprocedure required that subjects be consistent in their answers in each phase of the task in order to receive non-zero scores. This procedure employed a three-point scale with values of 0, 1, and 2. The other procedure used a scale with values ranging from 0 to 6 inclusive. Subjects were given a point for each of the six questions answered correctly in the conservation tasks, regardless of the consistency of the answers. The method with the 0, 1, and 2 scale showed that' identity and equivalence conservation were equally difficult, while the method which employed the 0-6 scale showed that identity was easier than equivalence. It was shown that the latter method yielded these results because of an artifact in the questions asked. Furthermore it was shown that scale scores which resulted from an application of the 0-6 scale were an ambiguous reflection of the level of concept attainment. An analysis of variance was performed on the transitivity tasks. The main effects for Group and Age were significant. The transitivity tasks were significantly easier than all conservation tasks at all grade levels. The implications of this and the co-occurrence of identity and equivalence conservation were discussed in relation to Elkind's (1967) analysis.
The dynamics of colloids in a narrow channel driven by a non-uniform force
Creators: name: Tkachenko, D. V.
name: Misko, V. R.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Using Brownian dynamics simulations, we investigate the dynamics of colloids confined in two-dimensional narrow channels driven by a non-uniform force F(y). We considered linear-gradient, parabolic and delta-like driving-force profiles. This driving force induces melting of the colloidal solid (i.e., shear-induced melting), and the colloidal motion experiences a transition from elastic to plastic regime with increasing F. For intermediate F (i.e., in the transition region) the response of the system, i.e., the distribution of the velocities of the colloidal chains, in general does not coincide with the profile of the driving force F(y), and depends on the magnitude of F, the width of the channel and the density of colloids. For example, we show that the onset of plasticity is first observed near the boundaries while the motion in the central region is elastic. This is explained by: (i) (in)commensurability between the chains due to the larger density of colloids near the boundaries, and (ii) the gradient in F. Our study provides a deeper understanding of the dynamics of colloids in channels and could be accessed in experiments on colloids (or in dusty plasma) with, e.g., asymmetric channels or in the presence of a gradient potential field.
description: 10 pages, 7 figures
title: Brun's 1920 Theorem on Goldbach's Conjecture
Creators: name: Farrugia, James A.
Publisher: name: Utah State University
Year: 2018

description: One form of Goldbach’s Conjecture asserts that every even integer greater than 4is the sum of two odd primes. In 1920 Viggo Brun proved that every sufficiently large even number can be written as the sum of two numbers, each having at most nine prime factors. This thesis explains the overarching principles governing the intricate arguments Brun used to prove his result.
Though there do exist accounts of Brun’s methods, those accounts seem to miss the forest for the trees. In contrast, this thesis explains the relatively simple structure underlying Brun’s arguments, deliberately avoiding most of his elaborate machinery and idiosyncratic notation. For further details, the curious reader is referred to Brun’s original paper (in French).
Thermodynamics in new model of loop quantum cosmology
Creators: name: Zhang, Xiangdong
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The thermodynamic properties of loop quantum cosmology (LQC) without considering the Lorentz term were established in \cite{Zhu09}. In this paper, we extend this result to the recent proposed new model of LQC with the Lorentz term. We investigate the thermodynamics of LQC on the apparent horizon of the Friedmann-Lematre-Robertson-Walker universe. The result shows that the effective density and effective pressure in the modified Friedmann equation of LQC not only determines the evolution of the universe but can also serve as the thermodynamic quantities. Moreover, with the help of the Misner-Sharp energy, the first law of thermodynamics of the LQC is still valid as expected. This in turn endows precise physical meaning to the effective matter density $ρ_{eff}$ and the effective pressure $P_{eff}$.
description: 8 pages
The 2dF-SDSS LRG and QSO Survey: The spectroscopic QSO catalogue
Creators: name: Croom, Scott M.
name: Richards, Gordon T.
name: Shanks, Tom
name: Boyle, Brian J.
name: Sharp, Robert G.
name: Bland-Hawthorn, Joss
name: Bridges, Terry
name: Brunner, Robert J.
name: Cannon, Russell
name: Carson, Daniel
name: Chiu, Kuenley
name: Colless, Matthew
name: Couch, Warrick
name: De Propris, Roberto
name: Drinkwater, Michael J.
name: Edge, Alastair
name: Fine, Stephen
name: Loveday, Jon
name: Miller, Lance
name: Myers, Adam D.
name: Nichol, Robert C.
name: Outram, Phil
name: Pimbblet, Kevin
name: Roseboom, Isaac
name: Ross, Nicholas
name: Schneider, Donald P.
name: Smith, Allyn
name: Stoughton, Chris
name: Strauss, Michael A.
name: Wake, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the final spectroscopic QSO catalogue from the 2dF-SDSS LRG and QSO (2SLAQ) Survey. This is a deep, 18
description: 28 pages, 23 figures. Accepted for publication in MNRAS. Survey data, including catalogue and spectra available from http://www.2slaq.info/
ANALYSIS OF THE IMPACT OF IMPLEMENTING INSW (INDONESIAN NATIONAL SINGLE WINDOW SYSTEM) ON LOGISTICS DISTRIBUTION IN INDONESIA
Creators: name: SEMUEL PALEMBANGAN, M.T., M.Mar.,
name: SOLEH UDDIN, S.SiT., M.M.,
name: ABDUL ROCHMAN, M.M.,
name: CHOLIS IMAM NAWAWI, S.Si.T., M.Si.
Publisher: name: Zenodo
Year: 2024
Subjects: Logistics, Export, Import, Indonesian National Single Window System.

description: Abstract

INSW is an effort by the Indonesian state in its efforts encourage the smooth flow of export and import goods. The system in INSW has experienced obstacles and obstacles service users as long as this system is implemented. This research is descriptive research with a qualitative approach. The research results show that the implementation of the INSW System can be categorized as smooth, because it produces a positive impact on service users. The smooth implementation of the INSW System has been proven by several data which strengthens the opinion that the INSW System has a positive impact regarding the smooth flow of goods. The INSW system plays a very important role in facilitating the flow of export goods and import. The INSW system makes port and customs clearance easier process export and import documents because the data entered by the Exporter/Importer has been selected by the INSW System, thereby producing valid and fast data in the handling process.
The Economic Development of Taiwan, 1980-1993 Macroeconomic Policy: Overzealous or Inflexible?
Creators: name: Roemer, Michael
name: Ji, Chou
name: Roemer, Michael
name: Ji, Chou
Publisher: name: Unknown
Year: 1996
Subjects: International Development
International Relations/Trade

description: This paper analyzes the macroeconomic policies of Taiwan since 1980, to set the framework in which trade and industrial policy took place. When Taiwan's strategy for rapid economic development was being put in place during the 1950s and early 1960s, macroeconomic policy was central to the thinking of Taiwanese policymakers. The first major policy changes were the rise of real interest rates in the early 1950s,followed by the devaluation and unification of the exchange rate towards the end of the decade. Over the next two decades, sound macroeconomic policy was a hallmark of Taiwan's development. By the 1980s, however, it appeared that policymakers may have overdone conservative macroeconomic policies. Domestic saving grew as investment fell relative to GNP; exports exceeded imports by growing margins; and foreign reserves accumulated to the point of wasteful investment. The major question is whether policymakers intended to accumulate reserves or whether this was a result of mismanagement. It is evident that the stringent macroeconomic policies of the late 1970s were maintained too long. Even if policymakers' aim was to accumulate reserves, they pushed the policy so far that a sharp correction was inevitable and may have been forced on Taiwan by US. pressure. The post-1986 co"ection was also overdone. Private credit expansion was too rapid, the government, uncharacteristically, began running large deficits, and these policies may have exacerbated the stock market bubble of the late 1980s.
title: Split Latency Allocator: Process Variation-Aware Register Access Latency Boost in a Near-Threshold Graphics Processing Unit
Creators: name: Pal, Asmita
Publisher: name: Utah State University
Year: 2018

description: Over the last decade, Graphics Processing Units (GPUs) have been used extensively in gaming consoles, mobile phones, workstations and data centers, as they have exhibited immense performance improvement over CPUs, in graphics intensive applications. Due to their highly parallel architecture, general purpose GPUs (GPGPUs) have gained the foreground in applications where large data blocks can be processed in parallel. However, the performance improvement is constrained by a large power consumption. Likewise, Near Threshold Computing (NTC) has emerged as an energy-efficient design paradigm. Hence, operating GPUs at NTC seems like a plausible solution to counteract the high energy consumption. This work investigates the challenges associated with NTC operation of GPUs and proposes a low-power GPU design, Split Latency Allocator, to sustain the performance of GPGPU applications.
Automatically detecting data drift in machine learning classifiers
Creators: name: Ackerman, Samuel
name: Raz, Orna
name: Zalmanovici, Marcel
name: Zlotnick, Aviad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Classifiers and other statistics-based machine learning (ML) techniques generalize, or learn, based on various statistical properties of the training data. The assumption underlying statistical ML resulting in theoretical or empirical performance guarantees is that the distribution of the training data is representative of the production data distribution. This assumption often breaks; for instance, statistical distributions of the data may change. We term changes that affect ML performance `data drift' or `drift'. Many classification techniques compute a measure of confidence in their results. This measure might not reflect the actual ML performance. A famous example is the Panda picture that is correctly classified as such with a confidence of about 60\%, but when noise is added it is incorrectly classified as a Gibbon with a confidence of above 99\%. However, the work we report on here suggests that a classifier's measure of confidence can be used for the purpose of detecting data drift. We propose an approach based solely on classifier suggested labels and its confidence in them, for alerting on data distribution or feature space changes that are likely to cause data drift. Our approach identities degradation in model performance and does not require labeling of data in production which is often lacking or delayed. Our experiments with three different data sets and classifiers demonstrate the effectiveness of this approach in detecting data drift. This is especially encouraging as the classification itself may or may not be correct and no model input data is required. We further explore the statistical approach of sequential change-point tests to automatically determine the amount of data needed in order to identify drift while controlling the false positive rate (Type-1 error).
title: Relationships Among Invasive Coqui Frogs, the Small Indian Mongoose and Rat Species in Hawaii
Creators: name: Hill, Shane A.
Publisher: name: Utah State University
Year: 2018

description: Non-native species are increasing globally, and with this increase, it is likely that there will be new, unique relationships found among non-natives as well as additional impacts on native species. Rats and mongooses have been introduced to islands throughout the world where they impact native species, including birds, reptiles, and amphibians. The coqui frog was introduced to Hawaii in the 1980’s, where there were already abundant rat and mongoose populations. Previous research suggests that the high densities of coqui frogs may provide enough of a new food source for mongooses and rats that their populations would grow larger than they would without coqui frogs, and that this would exacerbate the negative effects that these predators have on native birds.
We investigated whether there are relationships between coqui presence, and the local abundance of introduced rats and mongoose on the island of Hawaii. We also investigated at these 12 sites whether there were indirect effects of coquis on bird nest predation rates using camera traps on artificial nests. Finally, we interpret our results in light of an analysis of the stomach contents of mongooses and rats, and data collected from remote cameras monitoring scavengers of dead coqui frogs.
We compared abundances of mammals in coqui invaded plots and uninvaded plots. In areas where coquis were present, we found a greater number of mongooses, and less Pacific rats. Both predators consume coquis, but mongooses were more important consumers of live and dead coquis. Shifts in mongoose and rat diets were observed in coqui invaded and uninvaded plots. It may be that coqui frogs are competing with rats because we found more fruit in rat stomachs collected in coqui invaded compared to uninvaded plots. We did not observe any difference in nest predation rates with and without coquis. Our results show that the coqui may serve as novel prey and/or competitors to non-native mammals.
title: Ecografía de "second look" tras la detección de lesiones sospechosas en resonancia magnética de mama.
Creators: name: Tejerina Bernal, Alejandro
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Breast
subject: MR
subject: Ultrasound

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
La Resonancia Magnética (RM) de mama tiene un papel fundamental en cada fase del manejo del cáncer de mama; la detección temprana,
la planificación terapeútica,
la monitorización del tratamiento neoadyuvante y la detección de recidiva local...
Phonon-mediated desorption of image-bound electrons from dielectric surfaces
Creators: name: Heinisch, R. L.
name: Bronold, F. X.
name: Fehske, H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A complete kinetic modeling of an ionized gas in contact with a surface requires the knowledge of the electron desorption time and the electron sticking coefficient. We calculate the desorption time for phonon-mediated desorption of an image-bound electron, as it occurs, for instance, on dielectric surfaces where desorption channels involving internal electronic degrees of freedom are closed. Because of the large depth of the polarization-induced surface potential with respect to the Debye energy multi-phonon processes are important. To obtain the desorption time, we use a quantum-kinetic rate equation for the occupancies of the bound surface states, taking two-phonon processes into account in cases where one-phonon processes yield a vanishing transition probability, as it is sufficient, for instance, for graphite. Besides producing an estimate for the desorption time of an electron image-bound to a graphite surface, we investigate the desorption scenario and show that desorption via cascades over bound states dominates unless direct one-phonon transitions from the lowest bound state to the continuum are possible.
description: 20 pages, 8 figures
title: Mechanism of Iron Transport in Mycelia Sterilia EP-76
Creators: name: Adjimani, Jonathan P.
Publisher: name: Utah State University
Year: 1987

description: The cyclic trihydroxamic acid, N, N', N' '-triacetylfusarinine C, produced by Mycelia sterilia EP-76, is shown to be a ferric ionophore for this organism. The association constant for ferric-N, N', N' '-triacetylfusarinine C complex was determined to be log K=32.5. Other iron chelating agents, such as rhodotorulic acid, citric acid, or the monomeric subunit of triacetylfusarinine C, N-acetyl- fusarinine, delivered iron to the cells by an indirect mechanism involving iron exchange into triacetylfusarinine C. In vitro ferric ion exchange was found to be rapid with triacetylfusarinine C. Gallium uptake rates comparable to those of iron were observed with the chelating agents that transport iron into the cell. Ferrichrome, but not ferrichrome A, was also capable of delivering iron and gallium to this organism, but not by an exchange mechanism. Unlike triacetylfusarinine C, the 14C-ligand of ferrichrome was retained by the cell. A mid-point potential of -690 mV versus the saturated silver chloride electrode was obtained for the ferric-N, N', N' '-triacetylfusarinine C complex, indicating that an unfavorable reduction potential was not the reason for utilizing a hydrolytic mechanism of intracellular iron release from the ferric triacetylfusarinine C chelate. The iron transport system recognizes only the  -cis coordination isomer of ferric-N, N’, N' '-triacetylfusarinine C metal ligand complex even though the -cis configuration predominates in solution. Ferrichrome and ferric-N, N', N' '-triacetylfusarinine C are both transported by the same receptor.
title: Hemoglobins of the Cutthroat Trout Salmo clarki
Creators: name: Southard, Jonathan N.
Publisher: name: Utah State University
Year: 1983

description: Nine hemoglobins have been isolated from the blood of cutthroat trout. All nine hemoglobins bind oxygen cooperatively and appear to be tetramers with molecular weights of -64,000. The oxygen equilibria and subunit structures of the purified hemoglobins were studied. In addition, the red blood cells of cutthroat trout were examined for the presence of ATP and GTP, which are known to be physiological modulators of hemoglobins in fishes.
Five hemoglobins with isoelectric points from 9.1 to 7.0 are classified as cathodal hemoglobins. These five hemoglobins have identical oxygen binding properties by the criteria tested. All have oxygen equilibria which are unaffected by protons and ATP and essentially independent of temperature, with overall enthalpies of oxygenation ~0. Two hemoglobins with isoelectric points near 6.5, classified as a nodal hemoglobins, have oxygen binding properties distinctly different from those of the cathodal hemoglobins. Both are characterized by a Root effect, displaying non-cooperative oxygen binding and low oxygen affinity at pH 6.2. ATP causes a large reduction in the oxygen affinity without affecting the cooperativity of oxygen binding. GTP has a similar but slightly larger effect on both hemoglobins. The oxygen equilibria of the anodal hemoglobins are temperature dependent, with the oxygen affinity being reduced as temperature increases. The overall enthalpy of oxygenation is -14 kcal/mol for both hemoglobins. The two remaining hemoglobins represent only a small percentage of the total hemoglobin. These hemoglobins are tentatively designated as embryonic hemoglobins based primarily on a comparison of their properties to those observed for hemoglobins from newly-hatched rainbow trout (Iuchi, I. (1973) Comp. Biochem. Physiol. 44B, 1087-1101). These two hemoglobins have isoelectric points near 5.9 and oxygen binding properties similar to those of the cathodal hemoglobins.
With the possible exception of one of the embryonic hemoglobins (for which globins were not obtained), all the hemoglobins are composed of two different types of globin chains. Six are ∝_2 β_2 tetramers, while two of the cathodal hemoglobins are hybrid tetramers of the type 〖∝∝'β〗_2 and ∝∝'ββ.
Red blood cells of cutthroat trout contain both ATP and GTP, suggesting that, in contrast to rainbow trout, both nucleotides may be important physiological modulators of hemoglobin oxygen affinity in this fish.
title: Kinetics of Two-Substrate Reactions Using Integrated Rate Equations
Creators: name: Holmes, Leonard D.
Publisher: name: Utah State University
Year: 1988

description: The usual procedure employed in enzyme kinetic analysis is the method of initial rates. However, it has been appreciated for years that the analysis of enzyme-catalyzed reactions could, in principle, be more efficiently performed by examining the entire time course. There is much more information contained in a progress curve than in a simple initial rate. With the appearance of the computer, the formidable computations necessary for the use of integrated-rate equations are quite possible. The intention of this research was to develop the analytical and statistical methodology for applying an integrated-rate equation to a two-substrate reaction. I have analyzed the kinetics of pyruvate reduction, as catalyzed by the rabbit M4 isoenzyme of lactate dehydrogenase. Time courses were carried out, in sextuplicate, by observing the disappearance of NADH. Initial concentrations were: NADH, .026 to 1.7 mM; pyruvate, .016 to .29 mM; NAD+, 0 to 7 mM; and lactate, 0 to 40 mM. The concentrations of pyruvate and/or NAO+ were such that measurable enzyme inactivation did not occur.
For each progress curve, values of Cf, Cs, C1, and C2 in the integrated equation were obtained by nonlinear regression; variances were calculated using replicate observations. Multiple regression, weighting each coefficient according to its variance, then gave 8 of the 11 J coefficients that characterize an ordered ternary-complex mechanism. The values obtained are comparable to previously published initial-rate values and predict progress curves that are consistent with the observed curves. The analysis required as few as nine experiments. A similar initial-rate study would require perhaps 10 times this number.
This research shows that the computations necessary to apply progress curve methods can be routinely computerized; these methods are potentially a very powerful tool when used with the correct analytical techniques and experimental design.
title: Molybdenum Chelates of 8-Hydroxyquinoline-5-Sulfonic Acid
Creators: name: Peterson, Ellis Ray
Publisher: name: Utah State University
Year: 1962

description: Man has had an intense interest in the role of enzymes in biological reactions for many years. The basic question--how enzymes are able to function so efficiently--remains as yet largely unanswered.
Only in recent years has it been discovered that molybdenum is essential for certain biological processes. For example, traces of molybdenum added to certain soils have resulted in spectacular plant growth (1). Four enzymes are known to contain molybdenum: nitrate reductase (2), hydrogenase (3), xanthine oxidase (4), and aldehyde oxidase (5). In each of these enzymes riboflavin is also present as the coenzyme FAD (flavin adeninedinucleotide). Tocatlian, in 1960, showed that a strong complex containing two molybdenum atoms per riboflavin molecule is formed in solution. However, he was unable to determine the formation constants (6).
title: Undercurrents: The Life Cycle of an Outdoor Experiential Learning Program in a Mainstream Public Middle School
Creators: name: Newell, Eric Jackson
Publisher: name: Utah State University
Year: 2018

description: This autoethnographic study details the researcher’s experiences as a high school student and as a new teacher—which eventually led to the creation, implementation, and 8-year life cycle of Mount Logan Discovery, a sixth-grade integrated outdoor experiential learning program in a public middle school. Routine field experiences established academic background knowledge, fostered relationships, built confidence, and provided purpose for curriculum standards. Perspectives of parents, students, colleagues, administrators, and donors add detail. This study responds to calls qualitative studies that focus on how outdoor programs are conducted, the descriptions of experiences and perceptions of students and parents, and how participants were changed through outdoor experiential learning programs.
The primary research question was: What are the lived experiences of the researcher as a founder of a public middle school outdoor experiential learning program, from its inception to its closure?
Though outdoor experiential learning is the main theme, this study is also about teaching reading and writing in authentic contexts, integrated science, and the struggle for constructivist-minded educators to humanize schools within high-stakes testing culture. From a theoretical standpoint, this is a story of constructivism in praxis.
Participants described that outdoor field experiences improved their attitude towards school, their overall confidence, fostered relationships, established a strong classroom community, and boosted their academic performance. Students and parents emphasized the impact integrating literacy with field programs had on their writing and reading skills. Other themes that surfaced include the role of field experiences in building character and allowing students to find joy and happiness in the learning process. Parents and students alike indicated outdoor field experiences had a lasting impact on participants lives.
The analysis also identifies six steps for putting principles of constructivism into practice in schools, recommendations for implementing new programs, and components of effective field programs. The narrative spurs parents, educators, administrators, and lawmakers to reflect on what really matters in schools. Until we change the way schools are evaluated, outdoor experiential learning programs like Mount Logan Discovery, and other attempts to enrich students’ educational experiences, will always exist on the fringes and in the shadows of public education, fighting for sustainability.
title: Síndrome aórtico agudo mediante TC. ¿Qué hay de nuevo? Actualización y correlación con hallazgos quirúrgicos.
Creators: name: Calvo Rado, Néstor
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Acute
subject: Dissection
subject: Aneurysms
subject: CT-Angiography
subject: CT
subject: Emergency
subject: Arteries / Aorta

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Revisar la clasificación del síndrome aórtico agudo (SAA) y los nuevos conceptos diagnósticos,
así como los hallazgos radiológicos,
las complicaciones,
datos útiles para la optimización del tratamiento,
y los errores de interpretación más...
ACCEPTANCE OF HEALTH INTERVENTIONS AND SOCIAL RELATIONS FOR CHRONIC DISEASE SUFFERERS: ASSESSMENT OF THE ACCEPTABILITY OF THE PROLANIS PROGRAM
Creators: name: Adila Solida
name: Ardiyansyah
Publisher: name: Zenodo
Year: 2024
Subjects: Program_Acceptance; Chronic_Disease; Health_Interventions; Social_Relations.

description: Abstract

The prevalence of chronic diseases in Jambi City has tended to increase in the last three years, especially hypertension and diabetes mellitus. Chronic diseases that are high risk, high volume and high cost have an impact on the household economy of sufferers who tend to incur health costs that exceed the family's financial capacity (catastrophic). The existence of the Chronic Disease Management Program (Prolanis) from BPJS Health should contribute to reducing the number of chronic diseases, reducing the burden of disease and improving the social relations of chronic disease sufferers, however the coverage of Prolanis activity is still low and several responses from community experience indicate there are problems with the acceptability of the program. This research aims to measure the level of community acceptability of health interventions and social relations in the Prolanis practice as assessed by analyzing affective attitudes, burden, ethics, intervention coherence, costs, perceived effectiveness and self-confidence of chronic disease sufferers in Jambi City in 2023. The research was conducted with Quantitative research methods use a cross-sectional design. Respondents were selected based on a purposive sampling technique totaling 180 respondents spread across five Puskesmas work areas in Jambi City. The research instrument is a questionnaire. The research results show that the indicators of burden, ethics and effectiveness are the most dominant factors in influencing the acceptability of Prolanis participants. As a recommendation, it is suggested to the government and BPJS Health to increase public understanding of the importance of using Prolanis in an effort to reduce the number of chronic diseases in Jambi City.
Cosmic strings interacting with dark strings
Creators: name: Hartmann, Betti
name: Arbabzadah, Farhad
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by astrophysical observations of excess electronic production in the galaxy, new theoretical models of the dark matter sector have been proposed in which the Standard model couples to the dark matter sector through an attractive interaction. The coupling of the Standard model to "dark strings", which are solutions of the low energy dark sector has been investigated recently. Here, we discuss the interaction between dark strings and standard cosmic strings and show that they can form bound states. In the presence of the interaction term, a Bogomolny-Prasad-Sommerfield (BPS) bound exists that depends on the interaction parameter and we observe that the attractive interaction between dark strings and cosmic strings is most efficient if the two strings are identical. Moreover, our model allows for dark string solution that can lower their energy by coupling to an electromagnetic field. We also investigate the gravitational properties of these solutions and show that they become supermassive with a singular space-time for values of the gravitational coupling larger as compared to the non-interacting case. Moreover, the deficit angle of the solutions decreases with increasing interaction.
description: 17 Latex pages including 4 figures and 6 Tables; reference added; some typos corrected, final version to appear in JHEP
title: The Industry and Occupation Incidence of State Mandated Maternity Benefits
Creators: name: Bahr, Adam
Publisher: name: Utah State University
Year: 2018

description: Government mandates are often used to promote equality in the workplace, often imposing additional costs upon employers. Economic theory suggest that these additional costs will be shifted onto the employees through a reduction in wages. However, when wage shifting is not an option due to anti-discrimination laws, how will employers respond to the additional costs imposed? Gruber (1994) found that wage shifting occurs when the groups benefiting from a government mandate are easily identifiable to the employer, despite the existence of anti-discrimination laws.
This study seeks to further the work of Gruber (1994) and examine wage shifting at an industry level. We look at industries that have a large percentage of workers who are benefited by a government mandate to see if the wage shifting in these industries was more significant. This study finds that, as the percentage of workforce receiving benefits increases, the amount of wage shifting grows.
title: Siderosis superficial del SNC: Lo que el radiólogo debe conocer.
Creators: name: Sánchez Carvajal, Javier, Javier
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neuroradiology brain
subject: MR

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
La siderosis superficial (SS) del sistema nervioso central (SNC) es una entidad infrecuente resultante del depósito anormal de hemosiderina en las membranas subpiales del cerebro,
la médula espinal y los nervios craneales (sobre todo el VIII par...
Detections of water ice, hydrocarbons, and 3.3um PAH in z~2 ULIRGs
Creators: name: Sajina, A.
name: Spoon, H.
name: Yan, L.
name: Imanishi, M.
name: Fadda, D.
name: Elitzur, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the first detections of the 3um water ice and 3.4um amorphous hydrocarbon (HAC) absorption features in z~2 ULIRGs. These are based on deep rest-frame 2-8um Spitzer IRS spectra of 11 sources selected for their appreciable silicate absorption. The HAC-to-silicate ratio for our z~2 sources is typically higher by a factor of 2-5 than that observed in the Milky Way. This HAC `excess' suggests compact nuclei with steep temperature gradients as opposed to predominantly host obscuration. Beside the above molecular absorption features, we detect the 3.3um PAH emission feature in one of our sources with three more individual spectra showing evidence for it. Stacking analysis suggests that water ice, hydrocarbons, and PAH are likely present in the bulk of this sample even when not individually detected. The most unexpected result of our study is the lack of clear detections of the 4.67um CO gas absorption feature. Only three of the sources show tentative signs of this feature and at significantly lower levels than has been observed in local ULIRGs. Overall, we find that the closest local analogs to our sources, in terms of 3-4um color, HAC-to-silicate and ice-to-silicate ratios, as well as low PAH equivalent widths are sources dominated by deeply obscured nuclei. Such sources form only a small fraction of ULIRGs locally and are commonly believed to be dominated by buried AGN. Our sample suggests that, in absolute number, such buried AGN are at least an order of magnitude more common at z~2 than today. The presence of PAH suggests that significant levels of star-formation are present even if the obscured AGN typically dominate the power budget.
description: 39 pages, 14 figures, accepted for publication in ApJ
title: Design and Control of Series Resonant Converters for DC Current Power Distribution Applications
Creators: name: Wang, Hongjie
Publisher: name: Utah State University
Year: 2018

description: With the growth of renewable energy usage and energy storage adoption in recent decades, people have started to reevaluate the possible roles of dc systems in current and future electrical systems. The dc voltage distribution has been applied in various applications, such as data centers and aircraft industry, for high efficiency and power density. However, for some applications such as subsea gas and oil fields, and ocean observatory systems, the dc current distribution is preferred over dc voltage distribution for its low cost and robustness against cable faults. Design and control of dc power distribution systems for different applications is an emerging research area with complex technical challenges. This dissertation solves the technical challenges in analysis, design, modeling, control and protection of series resonant converters (SRCs) for dc current distribution applications. An optimum design that has high efficiency, high reliability, and minimum required control efforts for the SRC with constant input current has been achieved and demonstrated by applying the analysis and design procedures developed in this dissertation. The modeling and analysis presented in this dissertation represents an operating condition that has not been studied in the literature and could be easily extended to other resonant converter topologies. Explicit analytical expressions have been provided for all key transfer functions, including input impedance and control-to-output, offering valuable resources to design feed-back regulation and to evaluate system stability. Based on the control strategies and control design presented in this dissertation, stable and reliable operation of dc current distribution systems with long distance cable has been achieved and demonstrated. The proposed analysis, design procedure, stability evaluation, control strategy and protection techniques in this dissertation can be applied to a wide range of similar scenarios as well, which greatly increases their value.
title: Evaluación radiográfica de los Dispositivos de Estimulación Cardiaca
Creators: name: Gil Ortega, María Ángeles
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Cardiac Assist Devices
subject: Conventional radiography
subject: Thorax
subject: Cardiac

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
La radiología desempeña un papel fundamental en la evaluación inicial y seguimiento de los Dispositivos de Estimulación Cardiaca (DEC),
constituyendo la radiografía simple de tórax la única técnica de imagen que permite evaluar la correcta...
GLOBAL PERSPECTIVE OF SHIP COLLISION DETERMINANT RESEARCH BASED ON A SYSTEMATIC LITERATURE REVIEW
Creators: name: ALBERTHA LOLO TANDUNG
name: RAHIMUDDIN
name: DARMAWAN NAPITUPULU
Publisher: name: Zenodo
Year: 2024
Subjects: Ship Collision, Maritime, Determinant, Systematic Literature Review.

description: Abstract

This systematic review investigates the determinants of ship collisions, a critical issue in maritime safety with substantial implications for human lives, the environment, and economic stability. The study analyses data from 627 documents retrieved from the Scopus database, of which 80 documents were selected for detailed analysis after a rigorous screening process. The findings identify seven primary factors influencing ship collisions: human factors, environmental conditions, technical and maintenance errors, safety management and risk assessment errors, regulation violations, traffic density, and technological development and prediction. Human factors, such as navigational errors and crew fatigue, are major contributors to collisions. Environmental conditions, including adverse weather and complex geographical settings, significantly heighten collision risks. Technical failures and poor maintenance compromise navigational safety, while inadequate safety management and risk assessment exacerbate these dangers. Violations of navigation regulations increase collision likelihood, particularly in high-traffic areas where the complexity of navigation is intensified. Finally, the use of advanced technologies like AIS and predictive risk models offers promising solutions for collision prevention. Understanding these factors is important for developing more effective preventative measures, improving maritime safety, and reducing the economic and environmental impact of ship collisions.
title: Theoretical Studies of Penetration of Magnetospheric Electric Fields to the Ionosphere
Creators: name: Sazykin, Stanislav
Publisher: name: Utah State University
Year: 2000

description: Ionospheric disturbance electric fields of magnetospheric origin play an important role in determining the global morphology and dynamics of the ionosphere of the Earth. In this work, we present a number of numerical simulations of the transient electric fields in the middle and inner magnetosphere and the ionosphere equatorward of the auroral zone caused by idealized changes in the magnetospheric driving parameters. For these studies, we u se the Rice Convection Model (RCM), a large computer code of the magnetosphere-ionosphere coupling which consistently computes the electric fields, currents, and plasma densities in the magnetosphere and the electric field and currents in the ionosphere in the quasi-static slow-flow approximation. We made substantial upgrades to the code, which include a module computing realistic solar EDY-produced ionospheric conductances and a new potential solver. Our upgraded version of the RCM also includes a time - varying magnetospheric magnetic field and a self-consistently estimated auroral zone. We first discuss numerical problems encountered in modeling electrodynamics of convection with a time-varying magnetic field, realistic ionospheric conductances, and a self-consistent auroral zone, and our solutions to those difficulties. We then present a number of "computer experiments" with the new version of the RCM with idealized changes in the magnetospheric parameters such as sudden changes in the cross polar cap potential drop, magnetic field reconfiguration corresponding to the overall changes in the high-latitude convection, as well as rotations of the electric field on the polar cap boundary. Prompt penetration ionospheric electric fields simulated with the upgraded RCM are shown to be consistent with the previous simulations. The new simulations and their results are discussed in the context of (1) possible contribution to the variability of the ionospheric electric fields, and (2) role of time-varying magnetic field on the characteristic lifetimes of prompt penetration electric fields at subauroral, middle, and low latitudes.
References for the Art in Motion poster, 2023.pdf
Creators: name: Kavcic Pucihar, Ana
name: Habe, Katarina
name: Laure, Marusa
Publisher: name: figshare
Year: 2023
Subjects: Music education
Learning, motivation and emotion

description: References for the Art in Motion 2023 symposium poster: Contributing Factors to Student Motivation Decline in Musical Instrument Lessons