cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Jurassic Navajo sandstone of Coyote Buttes, Utah/Arizona: coloration and diagenetic history, preservation of a dinosaur trample surface, and terrestrial analogs to Mars
Creators: name: Seiler, Winston Marmion
Publisher: name: University of Utah
Year: 2012
Subjects: Sandstone--Utah
Dinosaur tracks
Mars

description: The Coyote Buttes, in Jurassic Navajo Sandstone, straddles the Utah-Arizona  border at the northwest margin of Vermilion Cliffs National Monument. Its spectacular  geologyâ€"cyclic eolian cross strata, striking coloration, and sculpted geomorphologyâ€"  makes the area one of the most popular on the Colorado Plateau. Field and laboratory  techniques document three geologic features of the Coyote Buttes: sandstone diagenesis,  a dinosaur trample surface, and modern iron oxide micro-concretion eolian ripples  analogous to Mars.  The range of red, orange, pink, and purple sandstone hues is largely due to iron  oxideâ€"hematite and lesser goethite grain-coatings and cement. Six diagenetic color  facies (10's m thick) document paleofluid interactions and both advective fluid flow and  diffusive iron mobilization in the host rock. Bleaching patterns (cm-10's m scale)  indicate advective, upward migration and accumulation of a buoyant, chemically  reducing fluid (likely hydrocarbons). Liesegang bands record diffusive mass transfer  across redox boundaries between a fluid enriched in mobile, ferrous iron and oxygen-rich  groundwater. Coloration developed during a narrow timeframe concurrent with  Laramide-aged faulting; paleofluid flow is eastward.  A well-preserved dinosaur trample surface in a wet interdune interval exhibits  multiple overlapping track types and sizes, high track density, footprint features, and rare  tail drag marks. At least three distinct ichnogenera are present - Eubrontes,  Anchisauripus, and Grallator, along with tracks of an unidentified Sauropodomorph.  The trample surface refines ecologic and climatic conditions recorded in Early Jurassic  eolian deposits.  Complex, coarse-grained ripples of iron oxide micro-concretions derived from  redox fronts are terrestrial analogs to Martian features. The ripples illuminate the history  of host rock diagenesis (similar to Liesegang banding), weathering stages, and modern  wind processes. These events may be scaled to Martian conditions where similar ripples  are widespread and formed in a lower-density atmosphere under higher winds.  The Coyote Buttes annually draw thousands of wilderness enthusiasts and  photographers. This study contributes a better understanding of the area's intense  diagenetic coloration and fluid history, the paleoecology of the Navajo erg, and wind dominated  Martian processes. The Coyote Buttes is a valuable geologic feature for the  scientific community, and an exceptional aesthetic landscape for resource management in  the Vermilion Cliffs National Monument.
The effects of perceived coercion and empowerment on motivational processes for adults ordered to attend substance abuse treatment: a mixed methods analysis
Creators: name: Merrill, Tiffany Jo
Publisher: name: University of Utah
Year: 2015
Subjects: Empowerment
Motivation
Substance abuse

description: Substance abuse treatment agencies increasingly work with clients who are mandated to treatment by the criminal justice system. This trend has necessitated a better understanding of the impact of clients' subjective perceptions of coercion on motivation for treatment and recovery. The present study utilized a mixed methods approach to understand the impact of both perceived coercion and empowerment on motivational processes for adults ordered by the criminal justice system to attend substance abuse treatment. Data were collected from 98 adults ordered to undergo assessment and treatment for substance abuse problems as the result of a drug-related offense. It was hypothesized that perceived coercion and empowerment would be negatively correlated. While these variables were negatively correlated, they value of the correlation was not significant. It was also hypothesized that perceived coercion and empowerment would predict motivational processes, including motivational readiness-to-change levels and whether or not motivation was internalized. Multiple and logistic regression analyses indicated that, as hypothesized, perceived coercion was a significant predictor of these processes: Higher perceived coercion predicted lower motivation levels and noninternalized motivation. Contrary to this hypothesis, however, empowerment was not a significant predictor of motivational processes. A grounded theory analysis of 11 participant interviews (from the original sample of 98 participants) resulted in the emergence of 6 themes that further developed the relationship among perceived coercion, empowerment, and motivation. The grounded theory model provided good validation of the statistical findings, suggesting that when participants spoke of feeling coerced into treatment, they spoke of a negative impact on motivation. However, the majority of interviewees, regardless of their feelings about the court order, had high expectations for treatment and anticipated addressing mental health issues and other "tools" of treatment. In further support of the statistical findings, interview participants also had a difficult time describing empowerment as impacting motivation. Instead, many participants suggested that as they worked toward recovery, which reflected a foundation of motivation, they often felt more empowered as a result.
Sonnenfleckenzeichnung Nr. 20550.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 20.08.1960, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1960

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Betasyringophiloidus Skoracki 2011
Creators: name: Skoracki, Maciej
name: Spicer, Greg S.
name: Oconnor, Barry M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Syringophilidae
Betasyringophiloidus

description: Genus Betasyringophiloidus Skoracki, 2011
Betasyringophiloidus Skoracki, 2011: 86.
Type species: Betasyringophiloidus phoenicurus Skoracki, 2011, by original designation.
Mites of this genus occupy quills of secondaries and coverts and are associated with passeriform birds of the families Emberizidae, Motacillidae, Muscicapidae and Parulidae.
This genus includes five species, one of them is recorded in the Nearctic region, B. seiuri (Clark, 1964) comb. nov.
description: Published as part of Skoracki, Maciej, Spicer, Greg S. & Oconnor, Barry M., 2016, A systematiC review of the subfamily Syringophilinae (ACari: Syringophilidae) of the NearCtiC region. Part 1: quill mites assoCiated with passerines (Aves: Passeriformes), pp. 451-494 in Zootaxa 4084 (4) on page 458, DOI: 10.11646/zootaxa.4084.4.1, http://zenodo.org/record/1052257
Security Requirement Analysis of Blockchain-based E-Voting Systems
Creators: name: Gandhi, Sanil S.
name: Kiwelekar, Arvind W.
name: Netak, Laxman D.
name: Wankhede, Hansraj S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: In democratic countries such as India, voting is a fundamental right given to citizens of their countries. Citizens need to physically present and cast their vote in ballot-paper-based voting systems. Most of the citizens fail to fulfill this constraint and have stayed away from their fundamental duty. Electronic-voting systems are often considered one efficient alternative in such situations. Blockchain Technology is an emerging technology that can provide a real solution as it is characterized by immutable, transparent, anonymous, and decentralized properties. This paper presents a security requirement analysis for e-voting systems and evaluates blockchain technology against these requirements.
Design and synthesis of polymeric cryoprotectants
Creators: name: Burkey, Aaron Andrew
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Cryopreservation
Polymer chemistry

description: The development of improved cryopreservative materials is necessary to enable complete recovery of living cells and tissue after frozen storage. If realized, improved cryoprotectants have the potential to revolutionize regenerative medicine through organ and tissue banking and decrease the number of donor organs that go unused due to the short window of time in which they remain viable. Polymeric cryoprotectants are a promising alternative to traditional small molecule cryoprotectants (e.g. DMSO or glycerol) because they can be used at high concentrations without exerting high osmotic pressure on cells, and they are less likely to passively cross the cell membrane and disrupt intracellular functions. In this work, we describe fundamental studies on known polymeric cryoprotectants such as poly(vinyl alcohol) and detail the synthesis and evaluation of new polymeric materials designed to improve post-thaw cell survival. One newly synthesized polymer in particular, poly(methyl glycidyl sulfoxide) (PMGS), led to higher post-thaw cell survival than traditional cryoprotectants for normal human dermal fibroblasts. Calorimetric evaluation of polymer/water interactions and direct observation of cellular dehydration during freezing suggested that PMGS helped to promote cell survival by (1) limiting total ice formation, (2) enabling the vitrification of the unfrozen space between ice crystals, and (3) facilitating cellular dehydration after ice nucleation.
Effects of strain on cardiac electrophysiology and microstructure
Creators: name: McNary, Thomas Grant
Publisher: name: University of Utah
Year: 2015
Subjects: Capacitance
Conduction velocity
Heart
Stretch
Transverse tubule

description: Does strain induce changes in the electrical properties of the heart? Does strain affect the microstructure of cardiac myocytes? Others have considered these questions, but have been limited in their findings. I addressed the first question by measuring conduction velocity in papillary muscles in rest conditions and during applied strain. I also applied streptomycin, a nonselective stretch ion channel blocker, in the above conditions. In control, conduction velocity increased with strain before conduction block occurred. When streptomycin was applied conduction velocity peaked at a higher strain, but conduction block remained unchanged. Changes in electrical properties of papillary muscle allowed for changes in conduction velocity. Although streptomycin did not alter the strain at which conduction block occurred, it did shift the peak conduction velocity to a higher strain. The second question was addressed by imaging isolated cardiac ventricular myocytes in varying degrees of contraction and strain using confocal microscopy. The length of transverse tubules (t-tubules), along with cross-section ellipticity, and orientation in myocytes were analyzed for cells in 16% contraction, rest, and 16% strain. Cells in contraction showed an increase in length of t-tubules with less elliptical cross-sections compared to cells in rest. Strained cells showed a decrease in length of t-tubules with less elliptical cross-sections than cells at rest. The orientation of t-tubule cross-sections changed in a similar manner when comparing contracted and strained cells with cells at rest. The transfer of strain to the t-tubule system supports the hypothesis that the motion of t-tubules during contraction and stretch may constitute a mechanism for pumping extracellular fluid.
Isolation of the secretory component of immunoglobulin A and production of a specific antiserum
Creators: name: Martin, Sandra Elizabeth Webster
Publisher: name: University of Utah
Year: 2012
Subjects: Analysis
Colostrum
Antibodies

description: This study was the initial step in a long range investigation of the local immune system of the urinary tract. The presence of secretory immunoglobulin A in external secretions exercises broad spectrum antimicrobial activity; the high incidence of chronic urinary tract infections, particularly among females, may result from a deficit of this system.  As degraded serum immunoglobulin A is excreted in the urine, the fragmented alpha chains would react with the available antiserum to whole secretory immunoglobulin A molecule, and alter the levels of secretory immunoglobulin A assayed. It was therefore necessary to develop a method of determining levels of both secretory immunoglobulin A and secretory component.  The secretory component was isolated and partially purified from pooled human colostrum. The major and overwhelming contaminant was lactoferrin. Antisera to these proteins were then developed in rabbits. An attempt was made to separate the rabbit antibodies to the secretory component and the antibodies to the other proteins which were mainly lactoferrin. A double diffusion in gel using the rabbit antisera and tlie antigen to develop antigen-antibody complexes which were then reinjected into rabbits was used.  Despite this purification attemp, the final antisera contained a greater quantity of antibodies to the lactoferrin than ti secretory component.
Neosyringophilopsis troglodytis
Creators: name: Skoracki, Maciej
name: Spicer, Greg S.
name: Oconnor, Barry M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Syringophilidae
Neosyringophilopsis
Neosyringophilopsis troglodytis

description: Neosyringophilopsis troglodytis (Fritsch, 1958)
(Fig. 4A–D)
Syringophilus troglodytis Fritsch, 1958: 238, fig. 8. Type material lost (in Kethley 1970: 65). Syringophilus troglodytis as incerta sedis, Kethley 1970: 65.
Syringophilopsis troglodytis, Bochkov & Mironov 1998: 5.
Neosyringophilopsis troglodytis, Skoracki & Sikora 2005: 26.
Type host: Troglodytes troglodytes (Linnaeus) (Passeriformes: Troglodytidae). Type locality: Germany.
Hosts and distribution. Troglodytes troglodytes (Linnaeus) (Troglodytidae) from Germany (Fritsch 1958), England (Nattress & Skoracki 2007) and Poland (Skoracki 2011); T. aedon Vieillot from Canada (Manitoba) (Bochkov & Galloway 2001).
description: Published as part of Skoracki, Maciej, Spicer, Greg S. & Oconnor, Barry M., 2016, A systematiC review of the subfamily Syringophilinae (ACari: Syringophilidae) of the NearCtiC region. Part 1: quill mites assoCiated with passerines (Aves: Passeriformes), pp. 451-494 in Zootaxa 4084 (4) on page 460, DOI: 10.11646/zootaxa.4084.4.1, http://zenodo.org/record/1052257
Online appendix: DevOps Practitioners’ Perceptions of the Low-code Trend
Creators: name: Rafi, Saima
name: Akbar, Muhammad Azeem
name: Sánchez-Gordón, Mary
name: Colomo-Palacios, Ricardo
Publisher: name: figshare
Year: 2022
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: Background: DevOps is currently one of the main trends in software development. Low-Code is also an emerging tendency that, combined with DevOps, may offer significant value to software businesses by improving the process. However, how DevOps practices and low-code are combined is little known. Aim: This study aims to understand the practitioner’s perspectives on low-code trends. Method: Twelve interviews with IT professionals who deal with low-code in the context of DevOps were conducted. Then, a grounded theory approach was used to theme the interview quotes into emergent categories. Results: The main result of this exploratory study reveals that such an approach is the most common response to the skill shortages of software professionals. Conclusion: This study suggests the emergence of DevOps and low-code could significantly contribute to the development of quality products with low-cost and time.
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 21.11.1960, erstellt am Sonnenobservatorium Kanzelhöhe, Kärnten
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1960

description: Bleistiftzeichnung mit Tinte und Bleistift, erstellt als Zeichnung nach eigener Vorlage im Sonnenobservatorium Kanzelhöhe in Sattendorf, Österreich. Instrument: Heliostat mit Refraktor Eigenbau (Öffnung 110mm, f = 1650mm, projiziertes Sonnenbild D = 25cm)
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 19.09.1960, erstellt von Vasile Dinulescu, Observatorium Bukarest
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1960

description: Bleistiftzeichnung mit Tinte und Farbstift, erstellt als Zeichnung nach eigener Vorlage am Astronomischen Observatorium Bukarest, Solarsektor, Rumänien. Instrument: Zeiss-Refraktor (Öffnung 130mm, f = 1950mm, projiziertes Sonnenbild D = 25cm)
Effect of temperature on the infectivity and propagation of western equine encephalitis virus
Creators: name: Dolana, Gary Harward
Publisher: name: University of Utah
Year: 2012
Subjects: Chick Embryo Cell Culture
Epidemiology
Epizoology

description: The propagation of WEE virus variants L.P. #7 and S.P. #6 infected chick embryo cells maintained as monolayer and in suspension was studied at 25° and 37°C.  The results may be summarized as follows:  1. The lag-period of the growth cycle for L.P. #6 and S.P. #7 was found to be 10 hours when the infected cells were maintained as a monolayer or in suspension and incubated at 25°C.  The lag period for S.P. #6 infected cells in suspension and as a monolayer incubated at 37° was found to be 2 hours while that for L.P. #7 was 1 ½ hours.  2. The maximum number of PFU in both variants present in the extracellular fluid was reached after 72 hours of incubation of infected monolayers at 25°C.  With S.P, #6 infected cells in suspension the maximum titer of S.P. #6 PFU was attained after 48 hours of incubation at 25°C while with L.P. #7 infected cells the maximum PFU was reached after only 36 hours of incubation at 25°C.  S.P. #6 infected cell in suspension, however, released a larger number of PFU than did L.P. #7 infected cells.  The reverse was true with cells maintained as a monolayer.  3. The maximum number of PFU released into the extracellular fluid by S.P. #6 and L.P. #7 infected cells in suspension or maintained as a monolayer occurred after 10 hours of incubation at 37°C.  The highest titer was produced by cell infected with the large plaque variant.  4. On the basis of infective center assay and counts of replicate non-infected monolayers the number of PFU released per infected cell was determined.  An experiment was designed to study the cytopathic changes that  develop in WEE virus infected chick embryo cells incubated at 25°C and 37°C.  the results of this experiment may be summarized as follows:  1. Cytopathogenicity was first observed in L.P. #7 infected cells after 8 hours of incubation at 37°C.  S.P. #6 infected cell did not show definite signs of cytopathic changes until after 10 hours of incubation at 37°C.  2. Infected cells incubated at 25°C developed observable cytopathogenicity after 24 hours of incubation.  3. Comparisons were made with the development of cytopathogenicity and the propagation of the two variants at the two experimental temperatures.
Sonnenfleckenzeichnung Nr. 20610.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 31.10.1960, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1960

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Qajar royal succession: the case of Muzaffar al-Din Mirza
Creators: name: Hagigi, Latifeh E.
Publisher: name: University of Utah
Year: 2013
Subjects: Muzaffar al-Din Mirza
Qajar
Royal succession

description: From the earliest times, ancient Iranian myths and legends addressed the tradition of royal succession. As monarchical rule continued throughout pre- and post-Islamic history, succession remained an important component of affairs of the court. It was critical for kings to designate heirs to the throne if their legacy was to endure. However, as most Iranian dynasties were tribal in origin, succession of a ruling family was often attained after intense struggles with rivaling branches of the same tribe. Policies related to succession were developed in order to keep a balance between family members. The Qajars, who seized power as a tribe in 1786, also faced challenges with respect to the tradition of succession. This study deals with how the tradition of succession developed during the Qajar period. It primarily focuses on the case of Muzaffar al-Din Mirza, addressing the turbulent events leading to his appointment as governor of the province of Azarbaijan (1861-1896) and as crown prince the following year. In addition to internal factors such as familial rivalries and court intrigue, the Qajars faced the external factor of an everincreasing foreign intervention in nearly all of the country's affairs. Succession became a bone of contention mainly between Britain, Russia and France. The political manipulation these powers resorted to came to a head during the early period of Nasir al- Din Shah's reign (1848-1896). Therefore, this study addresses the complex internal and iv external forces that eventually led to Muzaffar al-Din Mirza's appointment as a provincial governor and finally heir apparent. Furthermore, it examines how, with the arrival of modernity and technologies such as the telegraph, Nasir al-Din Shah was able to centralize his power, and how Muzaffar al-Din Mirza consequently was able to preserve his position as crown prince and governor for thirty-five years and eventually to ascend the throne (1896). The study concludes with an overview of Qajar royal succession after the heir apparency of Muzaffar al-Din Mirza. Although their cases were neither as complicated nor as tumultuous as that of Muzaffar al-Din Mirza, the final heir apparents of the Qajar dynasty were selected by the same traditions as those established at the very beginning of the dynasty's rule.
Sonnenfleckenzeichnung Nr. 20543.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 13.08.1960, erstellt von Helmut Müller
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1960

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Worker exposures during maintenance of ion implanters in the semiconductor industry
Creators: name: McCarthy, Colleen Margaret
Publisher: name: University of Utah
Year: 2012
Subjects: Air Contaminants
Arsenic
Phosphorous
Molybenum

description: An industrial hygiene survey of two semiconductor plants was performed in order to characterize and quantify toxic emissions during preventive maintenance of standard ion implantation machinery used in the semiconductor industry.  Maintenance personnel at both plants were monitored during routine preventive maintenance procedures.  Plant B was evaluated during two separate ion implanter maintenance operations, while monitoring at plant A. was performed only once.  The maintenance procedures differed for each sampling visit.  A comparison is presented between grinding operations, bead blasting and use of Scotch Brite scouring pads and solvents. Personal breathing zone air samples were collected for the determination of arsenic, arsine, phosphine, and many constituent elements found during the dismantling operations.  Personal samples were collected for the determination of the following cleaning solvent vapors which were during parts cleaning:  methyl chloroform, acetone, isopropanal, and Freon 113.  Wipe samples were obtained at plant B to determine the presence of any toxic substances, the potential for skin absorption or ingestion, and to define the extent of contaminated areas along with effectiveness of decontamination procedures.  Area samples were obtained to determine the concentration of airborne contaminants at a fixed location within both plants.  These samples provide information about engineering controls, sources of air contaminants, and the potential for employee exposure.  The results of all the air sampling were compared to the threshold limit values and permissible exposure levels for these substances.  Most of the air samples indicated low time-weighted averaged concentrations of the sampled contaminants.  However, high arsenic exposures were seen during maintenance grinding operations.  Arsine was generated during the grinding operation and in the course of bead blasting.  Very low concentrations of the solvent vapors were detected during any of the cleaning operations.  The potential for significant overexposure to hazardous substances during maintenance of ion implanters does exist,  especially if grinding if preformed.  These exposures can be minimized with the proper utilization systems, respiratory protection and adjustment of work practices.
The role of angiotensinogen in the pathophysiology of hypertension
Creators: name: Gociman, Barbu Razvan
Publisher: name: University of Utah
Year: 2012
Subjects: Physiopathology
Kallikrein

description: Essential hypertension is an important cause of human cardiovascular morbidity and mortality in most developed countries. Analysis of hypertensive siblings has revealed significant genetic linkage and alleilic association between angiotensinogen, the precursor of angiotensin II, and essential hypertension. Angiotensinogen is one of the components of the renin-angiotensin system that plays a central role in blood pressure regulation. Beside the circulating system, multiple tissue renin-angiotensin system including in arterial wall, heart, brain, and kidney have been described. Transgenic models confirmed a direct, causal relationship between increased angiotensinogen gene copy number and increased arterial pressure. Nevertheless, the site of action of angiotensinogen overexpression on increased pressure remains only speculative. We proposed to identify the role that individual renin-angiotensin systems have on the hypertensive phenotype by creating animal models with altered tissue-specific angiotensinogen expression. Furthermore, for a better understanding of the renal system, we will investigate the regulation and its interaction with other systems involved in blood pressure homeostatsis.
Atomically Sharp, Closed Bilayer Phosphorene Edges by Self-Passivation
Creators: name: Lee, Sol
name: Lee, Yangjin
name: Ding, Li Ping
name: Lee, Kihyun
name: Ding, Feng
name: Kim, Kwanpyo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Two-dimensional (2D) crystals' edge structures not only influence their overall properties but also dictate their formation due to edge-mediated synthesis and etching processes. Edges must be carefully examined because they often display complex, unexpected features at the atomic scale, such as reconstruction, functionalization, and uncontrolled contamination. Here, we examine atomic-scale edge structures and uncover reconstruction behavior in bilayer phosphorene. We use in situ transmission electron microscopy (TEM) of phosphorene/graphene specimens at elevated temperatures to minimize surface contamination and reduce e-beam damage, allowing us to observe intrinsic edge configurations. Bilayer zigzag (ZZ) edge was found the most stable edge configuration under e-beam irradiation. Through first-principles calculations and TEM image analysis under various tilting and defocus conditions, we find that bilayer ZZ edges undergo edge reconstruction and so acquire closed, self-passivated edge configurations. The extremely low formation energy of the closed bilayer ZZ edge and its high stability against e-beam irradiation are confirmed by first-principles calculations. Moreover, we fabricate bilayer phosphorene nanoribbons with atomically-sharp closed ZZ edges. The identified bilayer ZZ edges will aid in the fundamental understanding of the synthesis, degradation, reconstruction, and applications of phosphorene and related structures.
description: 22 pages, 5 figures
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 08.11.1960, erstellt von Edibe Balli-Tüzemen an der Universitätssternwarte Istanbul
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1960

description: Bleistiftzeichnung mit Tinte und Bleistift, erstellt als Zeichnung nach eigener Vorlage am Istanbul Universitesi Observatuari, Beyazit (Istanbul). Instrument: Zeiss Refraktor Teleskop (Öffnung 130 mm, f = 2000 mm, projiziertes Sonnenbild D = 25 cm)
Cloud Data Environment training module
Creators: name: Perin, Nicola
name: Saadat, Elaheh
Publisher: name: Zenodo
Year: 2024
Subjects: AWS
Network
Containers
Podman
Virtual Machine

description: The Cloud Data Environment is the third training module of the "Master in Data Management and Curation".

Module Description: Introduction of cloud computing infrastructures in the framework of data  analysis. Students will be introduced to the main concepts related to Cloud  Computing, and they will be able to experience the installation, configuration and usage of a cloud infrastructure and discussing how to use them proficiently to deploy simple applications in data related applications.

Objectives: On successful completion of this module students should have the basic skills to operate in a cloud environment, to setup and configure their own scientific environment, and to use them proficiently to deploy simple applications in data-related applications.
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 25.12.1960, erstellt von Edibe Balli-Tüzemen an der Universitätssternwarte Istanbul
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1960

description: Bleistiftzeichnung mit Tinte und Bleistift, erstellt als Zeichnung nach eigener Vorlage am Istanbul Universitesi Observatuari, Beyazit (Istanbul). Später wurden ergänzende Angaben aufgrund weiterer Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Instrument: Zeiss Refraktor Teleskop (Öffnung 130 mm, f = 2000 mm, projiziertes Sonnenbild D = 25 cm)
Understanding context in Autism: a modified approach to studying idioms
Creators: name: Harward, Sarah
Publisher: name: University of Utah
Year: 2012
Subjects: Autism
Eye tracking
Idioms
Theory of mind
Weak central coherence

description: Central coherence has been described as the tendency of the normal cognitive system to experience an unconscious drive for coherence or meaning when processing stimuli. Considerable evidence suggests that individuals with autism are less efficient at using contextual information to make inferences and to extract global meaning. This processing style has been termed weak central coherence. It has also been suggested that individuals with autism lack a theory of mind, or the cognitive ability to attribute mental states to oneself and others, and to understand that other individuals have beliefs, desires and intentions that are different from one's own. This study tested assumptions of both  theory of mind and weak central coherence theory with respect to the role of context in idiom comprehension in individuals with and without autism using eye tracking  technology.   Participants were recruited from the Utah Autism Research Program at the University of Utah and from the surrounding community. Participants with autism were  assessed with two measurements: (a) Autism Diagnostic Interview-Revised and (b) Autism Diagnostic Observation Schedule-Generic. Participants met the criteria for autism. Eye gaze was recorded using an Applied Sciences Laboratory EyeHead Integration system while the participants read passages containing an idiom that was preceded by context that was either neutral or biased toward the intended meaning of an  idiom presented later in the text. A subsequent target sentence contained the idiom, followed by a phrase that disambiguated the idiom towards either its literal or figurative meaning. Both first pass and second pass reading times were recorded for the idiom and  disambiguating phrase. Both groups appeared to use contextual information to similar degrees in processing idioms. Although context facilitated comprehension of the idiom in its figurative sense for both groups, participants with autism experienced stronger and  longer lasting comprehension difficulty when presented with the figuration interpretation of idioms.
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 09.12.1960, erstellt von V. Rusin am Skalnate Pleso Observatorium
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1960

description: Bleistiftzeichnung mit Tinte und Farbstift, erstellt als Zeichnung nach eigener Vorlage am Skalnate Pleso Observatorium. Später wurden ergänzende Angaben aufgrund weiterer Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Es sind zudem statistische Angaben für die Bestimmung der Fleckenrelativzahl notiert. Instrument: unbekannt, Sonnenbild D = 25 cm
Betasyringophiloidus Skoracki 2011
Creators: name: Skoracki, Maciej
name: Spicer, Greg S.
name: Oconnor, Barry M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Syringophilidae
Betasyringophiloidus

description: Key to species of the genus Betasyringophiloidus
(females)
* species occurring in the Nearctic region.
1. Each branch of peritremes with less than 12 chambers. Dorsal setae thick......................................... 2
- Each branch of peritremes with 13–14 chambers. Dorsal setae thin............................................. 4
2. Length ratio of setae vi: si 1:4–5.5. Setae ag3 1.2–1.3 times longer than ag1 ....................................... 3
- Length ratio of setae vi: si 1:3. Setae ag3 1.7–1.8 times longer than ag1 ........ B. motacillae (Bochkov and Mironov, 1998)
3. Hysteronotal shield fused with pygidial shield......................................... B. saxicolus Skoracki, 2011
- Hysteronotal shield not fused with pygidial shield................................ B. seiuri (Clark, 1964) comb. nov. *
4. Setae ag1 and ag2 subequal in length. Setae c1, c2 and d1 shorter than 170. Stylophore 150 long................................................................................................... B. phoenicurus Skoracki, 2011
- Setae ag1 1.6–1.8 times longer than ag2. Setae c1, c2 and d1 longer than 190. Stylophore 170–180 long............................................................................................. B. schoeniclus (Skoracki, 2002)
description: Published as part of Skoracki, Maciej, Spicer, Greg S. & Oconnor, Barry M., 2016, A systematiC review of the subfamily Syringophilinae (ACari: Syringophilidae) of the NearCtiC region. Part 1: quill mites assoCiated with passerines (Aves: Passeriformes), pp. 451-494 in Zootaxa 4084 (4) on page 460, DOI: 10.11646/zootaxa.4084.4.1, http://zenodo.org/record/1052257
Infiltration and potential groundwater recharge performance of stormwater bioretention designed for semiarid climates
Creators: name: Heiberger, John R.
Publisher: name: University of Utah
Year: 2013
Subjects: Bioretention
Infiltration
Recharge
Semiarid
Stormwater
Urban

description: Bioretention is a structure which captures runoff from small catchments and stores it in porous vegetated areas with the intent of infiltrating all or a large fraction of the annual runoff volume. The effects of bioretention on potential groundwater recharge are oftentimes unknown because of variable infiltration rates. This study examined the performance of a field site on the University of Utah campus in Salt Lake City, Utah. Data were collected between March, 2012 and November, 2012. The site demonstrated improvement in volume retention and infiltration over the preexisting conditions. The average storm event produced 5.6 mm (0.22 in) of precipitation. For all storm events examined, nearly all inflow volume was retained and either infiltrated, lost through evapotranspiration, or utilized by plants. Average vertical and horizontal infiltration rates ranged between 0.5 cm/hr and 20 cm/hr for the sandy loam subsoils. The wetting front took 1 to 2 days (24 to 48 hrs) to reach the 1.8 m (6 ft) depth and 7 to 14 days to reach the 3.7 m (12 ft) depth depending on the spatial location. At depths of 1.8 m (6 ft), 3.7 m (12 ft) and 4.6 m (15 ft) outside the basin, the wetting front progressed at least 3 m (10 ft) laterally in three days (72 hrs), but without additional sensors located at larger lateral distances, it remains unclear exactly where the lateral extent of the wetting front ceases. Without additional engineering to protect infrastructure such as building foundations and retaining walls, it is recommended that bioretention cells constructed in semiarid climates and with similar subsoils be located at least 6.1 m (20 ft) from infrastructure. Overall, this research indicates that bioretention is a viable stormwater best management practice in Utah. It was shown that with proper design and sizing, nearly all annual runoff volume can be controlled on site and either infiltrated or utilized by native plant species. As measured infiltration data were limited to the vadose zone, the infiltrated volume was considered potential recharge; future work may include modeling and installation of deeper sensors as a means of approximating recharge.
Neosyringophilopsis Skoracki and Sikora 2005
Creators: name: Skoracki, Maciej
name: Spicer, Greg S.
name: Oconnor, Barry M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Syringophilidae
Neosyringophilopsis

description: Key to species of the genus Neosyringophilopsis
(females)
* species occurring in the Nearctic region.
1. Setae vi, ve and si subequal in length..................................................................... 2
- Setae ve 2 times longer than vi, setae si 3–3.6 times longer than than vi ................... N. locustellus (Skoracki, 2004)
2. Setae f1 and f2 subequal in length......................................... N. acanthizus Skoracki and Sikora, 2005
- Setae f2 1.7–4 times longer than f1 ........................................................................ 3
3. Hysteronotal shield absent........................................................ N. lonchurus Skoracki, 2008
- Hysteronotal shield present.............................................................................. 4
4. Hysteronotal shield divided longitudinally................................................................ 5
- Hysteronotal shield entire.............................................................................. 7
5. Propodonotal shield divided longitudinally. Agenital setae ag1 and ag3 1.7–6 times longer than ag2 .................... 6
- Propodonotal shield not divided longitudinally but deeply concave on anterior margin. Agenital setae ag1–3 subequal in length.......................................................... N. garrulaxi (Bochkov, Mironov and Skoracki, 2001)
6. Infracapitulum apunctate. Propodonotal shield punctate. Length ratio of setae ag1: ag2: ag3 4.7:1:6.7....................................................................... N. lybidus Skoracki, Klimovicova, Muchai and Hromada, 2014
- Infracapitulum punctate. Propodonotal shield apunctate. Length ratio of setae ag1: ag2: ag3 1.7–1.8:1:1.7–1.8.......................................................................................... N. troglodytis (Fritsch, 1958) *
7. Hysteronotal shield entire not fused to pygidial shield. Each medial and lateral branch of peritremes with 6–8 and 9–12 cham- bers, respectively.......................................... N. phylloscopi (Bochkov, Mironov and Skoracki, 2001)
- Hysteronotal shield fused to pygidial shield. Each medial and lateral branch of peritremes with 3–5 and 7–8 chambers, respec- tively..................................................... N. aegithali (Bochkov, Mironov and Skoracki, 2001)
description: Published as part of Skoracki, Maciej, Spicer, Greg S. & Oconnor, Barry M., 2016, A systematiC review of the subfamily Syringophilinae (ACari: Syringophilidae) of the NearCtiC region. Part 1: quill mites assoCiated with passerines (Aves: Passeriformes), pp. 451-494 in Zootaxa 4084 (4) on pages 461-462, DOI: 10.11646/zootaxa.4084.4.1, http://zenodo.org/record/1052257
Mechanistic Dissection of Phosphorylation-Dependent Regulation of ETS-1 DNA Binding
Creators: name: Meeker, Charles Ashley
Publisher: name: University of Utah
Year: 2014

description: Intrinsically unstructured protein (IUP) regions and conformational disorder are increasingly recognized for their prevalence in the eukaryotic genome and functional importance in disease-related proteins and biological regulatory processes. The dynamic molecular motions inherent in these regions, as well as those found in structured protein regions, are proving to be important targets of regulation. The autoregulation of DNA binding in the transcription factor Ets-1 provides an example of how a flexible, unstructured region can modulate the activity of a structured, regulatable unit by affecting the dynamic character of the protein. This thesis explores the mechanism of phosphorylation-dependent regulation of Ets-1 DNA binding. The serine-rich region (SRR) of Ets-1 is shown to be predominantly unstructured before and after Ca2+-dependent phosphorylation. Phosphorylation of the SRR is shown to stabilize the regulatable unit, which is composed of domains responsible for DNA binding and autoinhibition, and to reduce the DNA-binding affinity of an Ets-1 fragment that is amenable to spectroscopic analysis. NMR-based experiments further determine that phosphorylation partially dampens the fast timescale mobility of the SRR and enhances its localization to the regulatable unit. Aromatic residues adjacent to the phosphor-acceptor sites are found to be required for the reported 100-fold decrease in binding affinity and inhibitory structural alterations. The juxtaposition of phosphoacceptor site and aromatic residue are shown to form a functional unit within the SRR which can be artificially amplified to further increase aromatic residue-dependent, phosphorylation-induced inhibition of Ets-1. We conclude the discovery of a new mechanism whereby phosphorylation of an IUP region enhances a transient hydrophobic interaction, modulating the activity of a structured unit without adopting a structured conformation.
Sonnenfleckenzeichnung Nr. 20639.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 10.12.1960, erstellt von Helmut Müller
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1960

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Tracking fluid/melt flow in lower crustal mafic gneiss using zircon isotopic zoning, kapuskasing uplift
Creators: name: Hilber, Melinda Dawn
Publisher: name: University of Utah
Year: 2012
Subjects: Superior Province
Superior craton
Kapusksasing Uplift
Ion microprobe
Metamorphism
Oxygen isotopes
Ti thermometer
U-Pb geochronology
Zircon
Isotopic zoning
Mafic gneiss

description: Coordinated cathodoluminescence (CL) imaging and ion microprobe (SHRIMP and CAMECA 1280) analysis (U-Pb dating, oxygen isotope and trace element) of metamorphic zircon from a granulite-facies mafic orthogneiss in the Kapuskasing Uplift of the Archean Superior Province reveal episodes of fluid-rock interaction. Metamorphic zircon grains were isolated from six sample sites along a 10 m traverse away from contact with a high ?18O paragneiss unit. CL images reveal that most zircons have bright cores surrounded by darker rims. The 207Pb/206Pb ages of metamorphic  zircons generally range from 2660 to 2550 Ma. Age differences between cores and rims are not always resolvable within the analytical precision of SHRIMP measurements (± 8 to 247 Ma, 2sd) due to very low U concentrations in many zircon cores. Ages do not  vary systematically with distance across the traverse.
The efficiency of resource reallocation within firms
Creators: name: McMahon, Susan Ryan
Publisher: name: University of Utah
Year: 2012
Subjects: Resource reallocation
Business planning

description: This study examines the efficiency of resource reallocation within multisegment firms. A defining feature of multisegment firms is management's ability to transfer resources across divisions. Although the option to use the proceeds or cash flows from one division of the firm to finance operations in another division is valuable to a firm, a large stream of literature documents potentially value-destroying consequences when agency conflicts interfere with investment decisions. Research to date provides mixed results as to whether multisegment firms reallocate resources efficiently. The extent that managers' resource reallocation decisions reflect improvements in efficiency is relevant to firms' existing and potential stakeholders. The reallocation of resources within firms provides new information about factors that underlie firm value, such as growth opportunities and risk exposure. To assess the efficiency of firms' resource allocation decisions, I create two unique, composite measures of efficiency that combine the performance of each segment relative to a firm's other segments and the segment's industry lifecycle stage. I examine the association between these measures and changes in the assets allocated to each of the firm's segments. I also investigate the influence of corporate governance factors. When financing occurs in-house, the firm has greater incentives to monitor the use of funds. Therefore, the ability of a firm's corporate governance structure to alleviate agency problems should be related to the efficiency of management's resource allocation decisions. Additionally, the greater complexity inherent in operating in multiple segments increases demands on firms' governance systems, making the efficiency of resource reallocation and the influence of related governance mechanisms important empirical questions.  Using segment data provided under SFAS No. 131, I find that firms reallocate resources to segments with the best comparative advantages within the firm, suggesting that multisegment firms, on average, reallocate resources efficiently. Additionally, I find that firms with more independent boards more quickly reallocate resources away from segments with lower within-firm comparative advantages than do firms with more affiliated or dependent boards.