cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Computer Aided Inspection Planning For Automation Of On-Machine Inspection Of Customised Milling Parts
Creators: name: Krebs, Jonas
name: Roedel, Lars
name: Mueller, Gregor
Publisher: name: Hannover : publish-Ing.
Year: 2023
Subjects: subject: Konferenzschrift
subject: Computer Aided Inspection Planning
subject: On-machine Inspection
subject: Automation
subject: CAx
subject: Batch Size One
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Customised products force manufacturing systems to operate efficient at batch size one. Automation in upstream processes and on shop floor increase productivity. Besides value-adding processes, quality management to sustain product quality must be considered regarding automation and consistency from 3D model to the execution on shop floor. Computer aided inspection planning addresses the automation of measurement operations. The inspection planning starts with a customised 3D model and realises a simple execution of the measurement task on shop floor level. A method for implementation of computer-aided inspection planning for tactile on-machine inspection will be presented to realise potentials like tool deviation and work piece correction based on measurement results. The developed method focuses on ensuring automation of computer aided inspection planning and sets up the basis for a self-controlling manufacturing system of customised milling parts. A validation was performed at a manufacturing company for customised drilling tools and enabled less downtime and rework time for milling machines.
Trans-Planckian Scale and Krein Space Quantization
Creators: name: Sojasi, A.
name: Mohsenzadeh, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, Krein space quantization method is applied to eliminate the Ultraviolet divergence of Green functions. This paper shows that the power spectrum of scalar field fluctuations can be calculated in the limit of short distance physics, trans-Planckian physics, without using the usual re-normalization process.
description: 5 pages, published in IJTP
Development of a Comparative Assessment Method For Additive and Conventional Manufacturing With Regard to Global Warming Potential
Creators: name: Pletzer-Zelgert, Leonie Pauline
name: De Souza, Bruna Pereira
name: Kolter, Moritz
name: Traverso, Marzia
name: Schleifenbaum, Johannes Henrich
Publisher: name: Hannover : publish-Ing.
Year: 2023
Subjects: subject: Konferenzschrift
subject: Life Cycle Assessment
subject: Additive Manufacturing
subject: Global Warming Potential
subject: Hotspots
subject: Sustainability
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Additive Manufacturing (AM) opens new possibilities for producing complex parts while achieving high material efficiency. Besides the technological advantages, AM is considered a key technology for sustainable production. A widely used approach to measure the sustainability of a product is the Life Cycle Assessment (LCA) by using the impact category of the Global Warming Potential (GWP). The setup of LCA is complex and requires a deep understanding of the process. LCAs carried out so far for AM mainly focused on energy consumption and the printing process itself. GWP caused by other up and downstream manufacturing steps, such as material preparation, has received little attention so far. This requires more comprehensive LCAs, increasing the complexity and effort. Therefore, the GWP is often not considered when deciding whether to use AM or Conventional Manufacturing (CM) for producing a part in the industry. This work presents a simplified method (GWP-method) for comparing AM and CM regarding the GWP by identifying so-called hotspots (the most significant production steps in terms of GWP). Based on the identified hotspots, the assessment scope was narrowed down, and an Assessment Equation (GWPAE) was developed. The GWPAE can then be used for the analysis of produced GWP for other product families and production scenarios for the defined process route. The method is demonstrated for an aerospace part as a case study. Finally, the deviation of the derived GWPAE is checked by directly comparing the results of the GWP of an LCA for another production scenario and lies at 5,9%.
Application of Dilation-Recompaction Model in Hydraulic Fracturing Simulation
Creators: name: Huang, Xuemin
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Petroleum
subject: Hydraulic Fracturing Simulation

description: Production of unconventional oil and gas resources has played a significant role on the global energy supply, of which tight oil and gas reservoirs are drawing greater focus. The key enabler behind tight oil and gas production has been multi-stage hydraulic fracturing along extended reach horizontal wells. Despite many advances in multistage fracturing, it still remains unclear how to model the hydraulic fracturing process to provide the basis to optimize and predict the properties of fracture networks and associated enhancement of fluid production. This is especially difficult since it is not possible to directly image the fracture network since the length scales of the network can be relatively small. In typical reservoir simulation practice, the conventional way to represent the hydraulic fracture is to place transverse plane around the horizontal well – this means that the user has prescribed the orientation and length scale of the fracture before the simulation has started. In the research documented here, we explore a dynamic fracturing approach that uses a dilation-recompaction model in a reservoir simulator to model hydraulic fracturing. The key strength of the approach is that the geometry and length scale of the fracture is not prescribed a priori. This means that the model can be relatively easily constructed and matched to field data. The results of the simulation show that dilation-recompaction model is capable of modeling the hydraulic fracturing process prior to the flow-back and production. The oil, gas, and water rates of the model are well matched to the field data and the extent of the fractured zone predicted by the model is reasonable. A sensitivity analysis using the history-matched model reveals that the design of hydraulic fracturing operation suggests that a larger number of stages and fracture fluid volume injected will raise oil and gas rates, but it remains unclear if the incremental oil and gas will provide enough revenues to offset the additional costs from increases of stages and fluid injection volume.
Essays on innovation and relational capital
Creators: name: Cui, Hong
Publisher: name: University of British Columbia
Year: 2010

description: This dissertation is composed of three essays. Its central theme is a study of the antecedents to technological innovation. Essay One examines an important relationship that has been overlooked in the literature, i.e., the impact of prior alliance relationship between firms on their current innovation performance when they become competitors. I used a comprehensive longitudinal dataset that includes information on historical alliance activities and current innovation races between firms in the U.S. pharmaceutical industry, over two decades (1985-2004). I found that the impact of prior collaborations on current competitions is a function of both the type of prior alliance relationships between firms, and the number of prior allies of different types in the current competition. Essay Two helps reconcile an ongoing debate in the literature regarding whether competition positively or negatively influences innovation. I used panel data containing innovation races from 1991 to 2004 in the U.S. pharmaceutical industry. I found that the degree of knowledge resource similarity (in both structure and amount) between the focal firm and its rivals is an important determinant of the balance between the positive and negative externalities of competition. The focal firm’s innovation was likely to suffer from competition where rivals had relatively larger amounts of knowledge resources. Such negative effect, however, can be attenuated and the net effect may turn positive, as the knowledge structure similarity between the rivals and the firm increases. While Essay One focuses on inter-firm relational capital, i.e., alliances, Essay Three focuses on the development of relational capital (i.e., trust) in the workplace, touching upon some of the fundamental conditions of innovation. I studied the antecedents to social trust in the workplace, a unique form of relational capital that draws an increasing research interest. Using two field studies conducted in Canada and China representing distinct cultures, I found that the diversity of one’s social network in the community was positively associated with one’s social trust in the workplace, in both societies, while the diversity of social network in the workplace was only positively associated with social trust in the workplace in China, and not in Canada.
FIRST, a fibered aperture masking instrument. I. First on-sky test results
Creators: name: Huby, E.
name: Perrin, G.
name: Marchis, F.
name: Lacour, S.
name: Kotani, T.
name: Duchêne, G.
name: Choquet, E.
name: Gates, E. L.
name: Woillez, J. M.
name: Lai, O.
name: Fédou, P.
name: Collin, C.
name: Chapron, F.
name: Arslanyan, V.
name: Burns, K. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In this paper we present the first on-sky results with the fibered aperture masking instrument FIRST. Its principle relies on the combination of spatial filtering and aperture masking using single-mode fibers, a novel technique that is aimed at high dynamic range imaging with high angular resolution. The prototype has been tested with the Shane 3-m telescope at Lick Observatory. The entrance pupil is divided into subpupils feeding single-mode fibers. The flux injection into the fibers is optimized by a segmented mirror. The beams are spectrally dispersed and recombined in a non-redundant exit configuration in order to retrieve all contrasts and phases independently. The instrument works at visible wavelengths between 600 nm and 760 nm and currently uses nine of the 30 43 cm subapertures constituting the full pupil. First fringes were obtained on Vega and Deneb. Stable closure phases were measured with standard deviations on the order of 1 degree. Closure phase precision can be further improved by addressing some of the remaining sources of systematic errors. While the number of fibers used in the experiment was too small to reliably estimate visibility amplitudes, we have measured closure amplitudes with a precision of 10 % in the best case. These first promising results obtained under real observing conditions validate the concept of the fibered aperture masking instrument and open the way for a new type of ground-based instrument working in the visible. The next steps of the development will be to improve the stability and the sensitivity of the instrument in order to achieve more accurate closure phase and visibility measurements, and to increase the number of sub-pupils to reach full pupil coverage.
description: 11 pages, 8 figures. Accepted for publication in A&A
Pholcus exilis Tong & Li 2010, sp. nov.
Creators: name: Tong, Yanfeng
name: Li, Shuqiang
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Pholcidae
Pholcus
Pholcus exilis

description: Pholcus exilis sp. nov. Figs 1J–L, 7A–E Type material: Holotype male, CHINA: Hebei Province, Chengde City, Yingshouyingzi, Sifang Cave (40°33.192´N, 117°40.159´E, alt. 492 m), 8 April 2005, X. Xu, Q. Wang, Y. Zheng & Y. Bi leg. Paratypes: 26 males and 13 females, same data as for holotype. Etymology: The species name is from Latin, exilis, slender, in reference to the stick-shaped bulbal appendix; to be treated as adjectival for the purposes of nomenclature. Diagnosis: The new species is similar to P. huberi Zhang & Zhu, 2009, but can be distinguished by the stick-shaped bulbal appendix and the bifurcated uncus in male and the light yellow epigynum and internal structure of female genitalia. Description: Male (holotype). Total length 4.86 (5.23 with clypeus), carapace width 1.73. Leg 1: 39.82 (9.99+0.71+9.99+17.14+1.99), tibia 2: 6.57, tibia 3: 4.56, tibia 4: 6.13; tibia 1 L/d: 53. Habitus as in figs 1J, K. Carapace yellowish, with brown radiated stripes; ocular area yellowish, with median brown band; clypeus yellowish, with light brownish marks laterally; sternum yellowish. Opisthosoma pale gray, with some spots dorsally and laterally. Distance PME–PME 0.22; diameter PME 0.14; distance PME–ALE 0.04; diameter AME 0.09. Chelicerae as in fig. 7C, with pair of black apophyses distally, pair of unsclerotized rounded apophyses proximolaterally, and pair of small pointed prominences frontally. Palps as in figs 7A, B; uncus bifurcated, basally with a pointed process (arrow in fig. 7A); bulbal appendix stick-shaped. Legs yellow, but dark brown on basal part of tibiae and whitish on tips of femora and tibiae, with darker rings on femora (subdistally) and tibiae (subdistally), without spines, curved and vertical hairs; tarsus 1 with pseudosegments, but only about 10 distinct distally. Variation: Tibia 1 in other males (n = 26): 9.28–12.15 (mean: 10.29). Females: In general similar to males. Tibia 1 in females (n = 13): 8.99–10.71 (mean: 9.85). Epigynum as in figs 1L and 7D, light yellow with distinctive pattern; with a long worm-shaped cylindrical outgrowth. Dorsal view as in fig. 7E. Distribution: Only known from type locality.
description: Published as part of Tong, Yanfeng & Li, Shuqiang, 2010, Eight new spider species of the genus Pholcus (Araneae, Pholcidae) from China, pp. 35-55 in Zootaxa 2355 on page 44
description: {"references": ["Zhang, F. & Zhu, M. S. (2009) A review of the genus Pholcus (Araneae: Pholcidae) from China. Zootaxa, 2037, 1 - 114."]}
The Effects of an Intentionally Designed Physical Literacy Curriculum on Primary-Aged Children
Creators: name: Van Wyk, Nadine
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Education--Early Childhood
subject: Early Childhood
subject: Health
subject: Teacher Training
subject: Recreation
subject: Physical Education

description: Fundamental movement skills (FMS) are considered to be the foundation of life-long participation in physical activity (PA). Tied closely to FMS is an individual’s sense of self perception of competence and confidence. It is argued that feeling positive about your ability to acquire and apply FMS to a variety of contexts will result in a greater likelihood of continued participation. The development of FMS typically occurs in education and sporting environments however, the recreation sector is an alternate viable arena to enhance such skill development. This thesis explores the creation of an intentionally designed PA curriculum, that is grounded in the philosophy of physical literacy (PL), and its’ influence on recreation programming including children’s motor proficiency and instructor behavior. Little scholarly research has been conducted in this area in the recreation sector. The literature that exists on children’s PA exertion and instructor behavior has primarily been conducted in the school and after-school environments. A total of 57 children in grade one and grade two were invited to participate in this research study. Children were divided into two groups, PL and traditional recreation (TR) programming. Those children in the PL program experienced PA in the four environments of land, air, snow/ice and water. Children involved in TR programs self-selected PA programs and were taught by traditional recreation instructors. Both groups of children participated in PA programs twice a week at a recreation centre in North central Calgary from January to May 2014. Motor proficiency testing, utilizing the Bruininks-Oseretsky Test of Motor Proficiency, identified a change over time for both groups and a statistical difference for iii participants in the PL program. Systematic observation revealed that group participation influenced PA behaviors of children. Further, discriminant analysis determined that the criterion for instructor interaction variables (as determined by the System for Observing Fitness Instruction Time) can be used to distinguish amongst instructors. The results of this research study suggest that purposeful, intentional recreation programming (in physical literacy) that is aligned with education outcomes and sport philosophy has the ability to influence PA behaviors in the recreation sector. It is suggested that further research in professional development and recreation curriculum continue to be explored to promote the development of FMS to contribute to an individual’s sustained participation in PA over the life course.
Pholcus jiulong Tong & Li 2010, sp. nov.
Creators: name: Tong, Yanfeng
name: Li, Shuqiang
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Pholcidae
Pholcus
Pholcus jiulong

description: Pholcus jiulong sp. nov. Figs 2D–F, 9A–F Type material: Holotype male, CHINA: Sichuan Province, Jiulong County, Tanggu Town, Helagou (29°08.645´N, 101°30.321´E, alt. 3252 m), 18 October 2005, X. Xu & X. Zhang leg. Paratypes: 3 males and 1 female, same data as for holotype. Etymology: The species name is a noun in apposition derived from the type locality. Diagnosis: The new species is similar to P. qinghaiensis Song & Zhu, 1999, but can be distinguished by the marks on carapace and sternum (compare figs 2D, M and 2F, O), the shapes of procursus (compare figs 9B and 13B) and the internal structure of female genitalia (compare figs 9E and 13E). Description: Male (holotype). Total length 4.32 (4.48 with clypeus), carapace width 1.45. Leg 1: 40.83 (10.71+0.57+10.42+16.99+2.14), tibia 2: 6.43, tibia 3: 3.85, tibia 4: 5.43; tibia 1 L/d: 66. Habitus as in figs 2D, E. Carapace yellow, with large brown marks medially and brown marginal band; ocular area yellowish, with brown band at median and laterally; clypeus brown; sternum yellowish, with brown marks (fig. 2F). Opisthosoma gray, with some spots dorsally and laterally. Distance PME–PME 0.22; diameter PME 0.14; distance PME–ALE 0.05; diameter AME 0.09. Chelicerae as in figs 9C, D, with pair of black apophyses distally, pair of unsclerotized apophyses proximolaterally, and pair of small prominences frontally. Palps as in figs 9A, B; bulbal appendix with a pointed branch medially. Legs yellowish, leg I with indistinct, but leg II with distinct darker rings on femora (subdistally) and tibiae (proximally and subdistally), leg III and IV with distinct darker rings on femora (proximally, medially and subdistally) and tibiae (proximally, medially and subdistally), without spines, curved and vertical hairs; tarsus 1 with some pseudosegments, but only about 15 distinct distally. Variation: Tibia 1 in other males (n = 3): 8.85, 10.28, 10.71 (mean: 9.95). Females: In general similar to males. Tibia 1: 5.43. Epigynum as in fig. 9F, brown with distinctive pattern; with a short, thick cylindrical outgrowth. Dorsal view as in fig. 9E. Distribution: Only known from type locality.
description: Published as part of Tong, Yanfeng & Li, Shuqiang, 2010, Eight new spider species of the genus Pholcus (Araneae, Pholcidae) from China, pp. 35-55 in Zootaxa 2355 on page 47
description: {"references": ["Song, D. X., Zhu, M. S. & Chen, J. (1999) The Spiders of China. Hebei Science and Technology Publishing House, Shijiazhuang, 640 pp."]}
Force weighting approach to calculate spinal cumulative loading for ergonomic workforce planning in production
Creators: name: Johnen, Laura
name: Deutz, Cathrin
name: Mertens, Alexander
name: Nitsch, Verena
name: Brandl, Christopher
Publisher: name: Hannover : publish-Ing.
Year: 2023
Subjects: subject: Konferenzschrift
subject: Ergonomics
subject: Occupational Health
subject: Industrial Engineering
subject: Cumulative Loading
subject: MSD
subject: MMH
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: For the prevention of musculoskeletal disorders (MSD), the evaluation of manual materials handling (MMH) is important. In this context, cumulative loading can be used as an exposure index for the ergonomic assessment of workplaces. However, it was shown in previous empirical studies that most existing methods for calculating cumulative loading fail to completely capture the resulting physiological effects of working conditions on human workers. Therefore, this contribution outlines the development and validation of a novel force weighted approach to calculated spinal cumulative loading that reflects the muscular exposure. Empirical data from 36 individuals were used as the data basis for deriving and validating the calculation method. The results of the validation show a high prediction quality on the basis of the hold-out method. Hence, the method provides relevant indicators for the ergonomic assessment of MMH activities. Thus, it might be a useful tool for workforce planning in production.
Using the Motion of Patchy Pulsating Aurora to Remote Sense Magnetospheric Convection
Creators: name: Yang, Bing
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Atmospheric Science
subject: magnetosphere
subject: convection
subject: aurora
subject: plasma

description: Magnetospheric convection is the main process of transport, energization and injection of energetic particles into the magnetosphere, and plays an important role in all dynamics in the Earth’s magnetosphere. It can be directly measured through in-situ ion/electron drift measurements or electric field measurements from satellites in the magnetosphere, and can also be remotely sensed by the in-situ ion drift velocity from satellites in the top ionosphere and ground-based radar measurements. Satellites either in the top ionosphere or magnetosphere can give accurate measurements of convection, but there is always the problem of separating spatial from temporal variation. Ground-based radar measurements either are often absent from the region of interests or have small field of view. In this thesis, I will develop a new technique – the motion of patchy pulsating aurora (PPA) – to remotely sense the magnetospheric convection. In a series of three papers, I will present a detailed demonstration of the equivalence of patch velocities and E × B convection, a statistical study of the motion of PPA and a case in which we use the motion of PPA to investigate the magnetospheric convection. These studies are great evidence showing that patch motion is a proxy for convection and an interesting complement to other convection measurements.
Anderson universality in a model of disordered phonons
Creators: name: Pinski, Sebastian D.
name: Schirmacher, Walter
name: Roemer, Rudolf A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We consider the localization properties of a lattice of coupled masses and springs with random mass and spring constant values. We establish the full phase diagrams of the system for pure mass and pure spring disorder. The phase diagrams exhibit regions of stable as well as unstable wave modes. The latter are of interest for the instantaneous-normal-mode spectra of liquids and the nascent field of acoustic metamaterials. We show the existence of delocalization-localization transitions throughout the phase diagram and establish, by high-precision numerical studies, that the universality of these transitions is of the Anderson type.
description: 5 pages, 2 figures, 1 table
Pholcus parayichengicus Zhang & Zhu 2009
Creators: name: Tong, Yanfeng
name: Li, Shuqiang
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Pholcidae
Pholcus
Pholcus parayichengicus

description: Pholcus parayichengicus Zhang & Zhu, 2009 Figs 1P–R, 12A–D Pholcus parayichengicus Zhang & Zhu, 2009: 62, figs 33–34. Material examined: 1 male, CHINA: Henan Province, Nanyang City, Baotianman National Natural Reserve, Huashijian (33°29.524´N, 111°55.831´E, alt. 1290 m), 19 November 2005, Q. Wang & Y. Lin leg. Remarks: This species has been well described by Zhang & Zhu (2009). Distribution: Henan (type locality: Luoyang, Nanyang).
description: Published as part of Tong, Yanfeng & Li, Shuqiang, 2010, Eight new spider species of the genus Pholcus (Araneae, Pholcidae) from China, pp. 35-55 in Zootaxa 2355 on page 51
description: {"references": ["Zhang, F. & Zhu, M. S. (2009) A review of the genus Pholcus (Araneae: Pholcidae) from China. Zootaxa, 2037, 1 - 114."]}
Evidence-Based Design in an Intensive Care Unit: End-User Perceptions
Creators: name: Beller Ferri, Mauricio
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Health Care Management
subject: Critical care
subject: facility design and construction
subject: health care evaluation mechanisms
subject: Qualitative Research
subject: post-occupancy evaluation

description: The objective of this qualitative case study was to describe end-user impressions about the design of the new Foothills Medical Centre intensive care unit in Calgary, Canada. I performed thirty-nine interviews with unit workers and family members. twenty-four in the early phase and fifteen in the late phase. Four themes and eleven sub-themes were identified: atmosphere (abundant natural light and low noise levels), physical spaces (single occupancy rooms, rooms clustered into clinical pods, medication rooms, and tradeoffs of larger spaces), family participation in care (family support areas and social networks), and equipment (usability, storage, and providers connectivity). End-users considered a pleasant atmosphere, attending to the tradeoffs of space and size, designing family support areas to encourage family participation in care, and updating patient care policies and staffing to reflect the new physical space as important elements when building intensive care units.
Energy-driven Drag at Charge Neutrality in Graphene
Creators: name: Song, Justin C. W.
name: Levitov, Leonid S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Coulomb coupling between proximal layers in graphene heterostructures results in efficient energy transfer between the layers. We predict that, in the presence of correlated density inhomogeneities in the layers, vertical energy transfer has a strong impact on lateral charge transport. In particular, for Coulomb drag it dominates over the conventional momentum drag near zero doping. The dependence on doping and temperature, which is different for the two drag mechanisms, can be used to separate these mechanisms in experiment. We predict distinct features such as a peak at zero doping and a multiple sign reversal, which provide diagnostics for this new drag mechanism.
description: 6 pgs, 3 fgs
Pholcus qinghaiensis Song & Zhu 1999
Creators: name: Tong, Yanfeng
name: Li, Shuqiang
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Pholcidae
Pholcus
Pholcus qinghaiensis

description: P. qinghaiensis Song & Zhu, 1999 Figs 2M–O, R, 13A–E Pholcus qinghaiensis Song & Zhu, 1999: 59, fig. 24W–Z, A´–D´. Zhang & Zhu, 2009: 75, fig. 41 A–H. Material examined: 1 male and 1 female paratypes, CHINA: Qinghai Province, Huangzhong County, August 1988, J. Wang leg.; 3 males and 3 females, CHINA: Sichuan Province, Baoxing County, Yaoji Town, Zegen Village (30°46.393´N, 102°43.680´E, alt. 2360 m), 27 September 2005, X. Xu & X. Zhang leg. Remarks: This species has been well described by Zhang & Zhu (2009). Distribution: New recordeds from Sichuan and Qinghai (type locality: Huangzhong County).
description: Published as part of Tong, Yanfeng & Li, Shuqiang, 2010, Eight new spider species of the genus Pholcus (Araneae, Pholcidae) from China, pp. 35-55 in Zootaxa 2355 on page 51
description: {"references": ["Song, D. X., Zhu, M. S. & Chen, J. (1999) The Spiders of China. Hebei Science and Technology Publishing House, Shijiazhuang, 640 pp.", "Zhang, F. & Zhu, M. S. (2009) A review of the genus Pholcus (Araneae: Pholcidae) from China. Zootaxa, 2037, 1 - 114."]}
Sicyonia dorsalis Kingsley 1878
Creators: name: Almeida, Alexandre Oliveira De
name: Guerrazzi, Maria Cec Lia
name: Coelho, Petr Ȏ Nio Alves
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Nymphalidae
Sicyonia
Sicyonia dorsalis

description: Sicyonia dorsalis Kingsley, 1878
Material examined (N=15). 2f, 14/IX/2003, St. 0 6 (MZUESC #645).
Distribution. Western Atlantic – from North Carolina to Florida, Gulf of Mexico, Antilles (Cuba and Puerto Rico), northern South America, and Brazil (from Amapá to Santa Catarina) (D’Incao 1995b).
Ecological notes. Muddy, sandy, organogenic, and calcareous algae bottoms. From 3 to 100 m, but most commonly found around 80 m (D’Incao 1995b).
Previous records in Bahia. Coelho & Ramos (1972), Ramos-Porto et al. (1989), D’Incao (1995b), Vasques et al. (2003).
description: Published as part of Almeida, Alexandre Oliveira De, Guerrazzi, Maria Cec Lia & Coelho, Petr Ȏ Nio Alves, 2007, Stomatopod and decapod crustaceans from Camamu Bay, state of Bahia, Brazil, pp. 1-45 in Zootaxa 1553 on page 8, DOI: 10.5281/zenodo.178168
"Follow the World's Creators": Negotiating the Value of GIF Art and Artists
Creators: name: McCutchin, Carla
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Mass Communications
subject: Economics--Theory
subject: internet
subject: Tumblr
subject: GIFs
subject: digital art
subject: social media
subject: political economy

description: This study employs Adam Arvidsson’s (2009) ethical economy theory to examine how the value of GIF art and artists is negotiated on the social media platform Tumblr.com. According to Arvidsson corporations generate value by guiding the development of social relations through the construction of a collaborative ethos. On Tumblr, this ethos is manifested through their business model and brand identity which invites users to “Follow the World’s Creators.” Through its business model and brand, Tumblr discursively positions itself as a site where creators and creative activity obtain cultural value, but also supply the platform with reputation value. By conducting a series of interviews with 15 GIF artists over email, my study shows that the value of GIF art and artists is predominantly conferred through circulation, a method of sharing that is afforded by Tumblr’s reblog function.
Improving sequence-based genotype calls with linkage disequilibrium and pedigree information
Creators: name: Zhou, Baiyu
name: Whittemore, Alice S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Applications (stat.AP)
subject: Genomics (q-bio.GN)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Whole and targeted sequencing of human genomes is a promising, increasingly feasible tool for discovering genetic contributions to risk of complex diseases. A key step is calling an individual's genotype from the multiple aligned short read sequences of his DNA, each of which is subject to nucleotide read error. Current methods are designed to call genotypes separately at each locus from the sequence data of unrelated individuals. Here we propose likelihood-based methods that improve calling accuracy by exploiting two features of sequence data. The first is the linkage disequilibrium (LD) between nearby SNPs. The second is the Mendelian pedigree information available when related individuals are sequenced. In both cases the likelihood involves the probabilities of read variant counts given genotypes, summed over the unobserved genotypes. Parameters governing the prior genotype distribution and the read error rates can be estimated either from the sequence data itself or from external reference data. We use simulations and synthetic read data based on the 1000 Genomes Project to evaluate the performance of the proposed methods. An R-program to apply the methods to small families is freely available at http://med.stanford.edu/epidemiology/PHGC/.
description: Published in at http://dx.doi.org/10.1214/11-AOAS527 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Exploring what Success Means from the Perspectives of Aboriginal Elders, Parents, and Educators in Aklavik, Northwest Territories
Creators: name: Wick, Meghan
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Educational Psychology
subject: Indigenous Education
subject: Aboriginal Education
subject: Community Based Research

description: This project explores both Gwich’in and Inuvialuit perspectives of success in the remote community of Aklavik in the Beaufort Delta Region of the Northwest Territories. From the onset, this project has been completed in a collaborative partnership with the District Education Authority of Moose Kerr School in Aklavik, which involved constant collaboration regarding all aspects of this work. A group of 12 Aboriginal Elders, parents, and school educators collectively came together to participate in focus group sessions and semi-structured interviews with a goal to develop a common, balanced, and culturally-based vision of what constitutes success in learning for Gwich’in and Inuvialuit peoples in Aklavik. During focus group and interview sessions, themes emerged that reflect a deeper, more holistic understanding of success for the community. Through several direct quotes captured by community participants, the findings highlight strengths the community has in fostering success, as well as areas the community continues to work towards. The community was determined to achieve their own success in this work, which is reflected in both the insightful words brought forward by participants as well as in a working model of success created by the community. The visions of success brought forward in this project will provide a foundation for how the current education system can be understood, challenged, and transformed for generations to come.
Quantum depinning of the magnetic vortex core in micron-size permalloy disks
Creators: name: Zarzuela, Ricardo
name: Vélez, Saül
name: Hernandez, Joan Manel
name: Tejada, Javier
name: Novosad, Valentyn
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The vortex state, characterized by an in-plane closed flux domain structure and an out-of-plane magnetization at its centre (the vortex core), is one of the magnetic equilibria of thin soft ferromagnetic micron-size dots. In the last two decades many groups have been working on the dynamics of the magnetic moment in nanomagnetic materials at low temperatures, it giving rise to the observation of quantum relaxations and quantum hysteresis cycles. For the first time, we report experimental evidence of quantum dynamics of the vortex core of micron-size permalloy (Fe$_{19}$Ni$_{81}$) disks induced by the application of an in-plane magnetic field. It is attributed to the quantum tunneling of the vortex core through pinning barriers, which are associated to structural defects in the dots, towards its equilibrium position.
‘”Boosting resilience” and “safeguarding youngsters at risk”: Critically examining the European Commission’s educational responses to radicalization and violent extremism’.
Creators: name: Christodoulou, Eleni
Publisher: name: figshare
Year: 2020
Subjects: Education

description: Despite the Radicalisation Awareness Network (RAN) being tasked with being a core policy tool of the European Union and helping to shape its research funding agenda on preventing violent extremism, very little is known about how it operates, the practices and activities it engages with and the discourses it mobilizes to do so. This study fills this gap through an in-depth investigation into RAN’s working group on education, critically examining the construction and enactment of discourses and practices related to the prevention of violent extremism through education. Combining a critical engagement of organizational practices with a discourse analysis of the various RAN EDU outputs, such as manifestos, policy papers and videos, it offers an examination of the discursive terrain of the European Commission, revealing the normative values and ideological assumptions underpinning it, as well as the subject-positioning of students and teachers involved.
title: Discriminating Healthy Optic Discs and Visible Optic Disc Drusen on Fundus Autofluorescence and Color Fundus Photography Using Deep Learning—A Pilot Study
Creators: name: Diener, Raphael
name: Lauermann, Jost
name: Eter, Nicole
name: Treder, Maximilian
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 610 Medicine and health

description: The aim of this study was to use deep learning based on a deep convolutional neural network (DCNN) for automated image classification of healthy optic discs (OD) and visible optic disc drusen (ODD) on fundus autofluorescence (FAF) and color fundus photography (CFP). In this study, a total of 400 FAF and CFP images of patients with ODD and healthy controls were used. A pre-trained multi-layer Deep Convolutional Neural Network (DCNN) was trained and validated independently on FAF and CFP images. Training and validation accuracy and cross-entropy were recorded. Both generated DCNN classifiers were tested with 40 FAF and CFP images (20 ODD and 20 controls). After the repetition of 1000 training cycles, the training accuracy was 100%, the validation accuracy was 92% (CFP) and 96% (FAF), respectively. The cross-entropy was 0.04 (CFP) and 0.15 (FAF). The sensitivity, specificity, and accuracy of the DCNN for classification of FAF images was 100%. For the DCNN used to identify ODD on color fundus photographs, sensitivity was 85%, specificity 100%, and accuracy 92.5%. Differentiation between healthy controls and ODD on CFP and FAF images was possible with high specificity and sensitivity using a deep learning approach.
description: Finanziert durch den Open-Access-Publikationsfonds der Universität Münster.
Contribution of the Purkinje System in Initiation and Maintenance of Arrhythmias
Creators: name: Behradfar, Elham
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Engineering
subject: Engineering--Biomedical
subject: Engineering--Electronics and Electrical
subject: Computer modeling
subject: Purkinje system
subject: Ventricular fibrillation
subject: Ischemia
subject: Afterdepolarization
subject: Cardiac arrhythmia

description: The Purkinje system is the conduction network of the heart that facilitates coordinated ventricular contraction and couples to the myocardium at discrete sites called Purkinje-Myocyte Junctions (PMJs). Fine and intricate geometry of the Purkinje system have confined experimental observations, therefore density and distribution of PMJs and Purkinje system contribution during cardiac arrhythmia are unclear. This thesis presents a detailed computer simulation study that highlights the role of the Purkinje system and its interaction with ventricles in arrhythmogenesis and maintenance. Firstly, simulations were performed on a model of rabbit ventricles to explore Purkinje system contributions during ventricular fibrillation. A fractal method for growing the Purkinje system was implemented to allow construction of anatomically realistic Purkinje network and investigation of PMJ density. The role of the Purkinje system in maintaining the arrhythmia was assessed by analyzing reentry dynamics. Results showed that the activation pattern at PMJs had little consistency over time during functional reentry, and a Purkinje system with a higher PMJ density contributed more to reentrant arrhythmia; however, the overall dynamics of sustained reentry did not appear to be significantly affected by Purkinje system complexity and coupling strengths at PMJs. Secondly, the realistic model of the Purkinje system was used to investigate mechanisms through which reduced myocardial coupling, induced by ischemia, modify the interaction between the Purkinje system and ventricular tissue, and affect ventricular excitation pattern. Experimental and modeling results suggest that ischemia-induced closing of gap junctions activates normally quiescent PMJs due to reduced source-sink mismatch and as a result, increased the complexity of activation. Modeling results indicated that a higher number of functional PMJs can speed activation of tissue and compensate for effects of uncoupling in slowing activation of the ventricles. Finally, effects of a potential antiarrhythmic drug, dantrolene, on suppressing delayed afterdepolarizations (DADs) due to Calcium overload were modeled. In ventricular model, rapid pacing promoted triggered activity but only those arising in the Purkinje fibers could generate action potential that propagated throughout the myocardium. According to modeling results, dantrolene could eliminate DAD at the Purkinje level by blocking channels that are only present in the Purkinje system.
Penetration of alkali atoms throughout graphene membrane: theoretical modeling
Creators: name: Boukhvalov, D. W.
name: Virojanadara, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Theoretical studies of penetration of various alkali atoms (Li, Na, Rb, Cs) throughout graphene membrane grown on silicon carbide substrate are reported and compared with recent experimental results. Results of first principles modeling demonstrate rather low (about 0.8 eV) energy barrier for the formation of temporary defects in carbon layer required for the penetration of Li at high concentration of adatoms, higher (about 2 eV) barrier for Na, and barriers above 4 eV for Rb and Cs. Experiments prove migration of lithium adatoms from graphene surface to the buffer layer and SiC substrate at room temperature, sodium at 100°C and impenetrability of graphene membrane for Rb and Cs. Differences between epitaxial and free standing graphene for the penetration of alkali ions are also discussed.
description: 16 pages, 3 figure, accepted to Nanoscale
Pholcus wuling Tong & Li 2010, sp. nov.
Creators: name: Tong, Yanfeng
name: Li, Shuqiang
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Pholcidae
Pholcus
Pholcus wuling

description: Pholcus wuling sp. nov. Figs 1S–U, 14A–F Type material: Holotype male, CHINA: Hebei Province, Xinglong County, Wuling Mountain (40°35.462´N, 117°21.359´E), 1 August 2005, Z. Li leg. Paratypes: 5 females, same data as for holotype. Etymology: The species name is a noun in apposition derived from the type locality. Diagnosis: The new species is similar to Pholcus exilis sp. nov., but can be distinguished by the short bulbal appendix, the shapes of procursus, uncus and palpal trochanter, and by the short cylindrical outgrowth of female epigynum. Description: Male (holotype). Total length 5.28 (5.68 with clypeus), carapace width 1.92. Leg 1 lost, leg 2 lost except femur: 14.71, leg 3: 32.69 (9.42, 0.71, 8.14, 12.85, 1.57), leg 4: 40.26 (11.42, 0.71, 10.71, 17.42, -). Carapace yellowish, with brown radiated stripes and brown marginal band; ocular area yellowish, with brown band at median and laterally; clypeus yellowish, with brownish marks; sternum brown. Opisthosoma gray, with some spots dorsally and laterally. Distance PME–PME 0.27; diameter PME 0.16; distance PME– ALE 0.05; diameter AME 0.09. Chelicerae as in figs 14C, D, with pair of black apophyses distally, pair of unsclerotized apophyses proximolaterally, and pair of slender up-directed prominences frontally. Palps as in figs 14A, B; uncus basally with a narrow process (arrow in fig. 14A); trochanter short, strongly bulged retrolaterally. Legs yellow, but dark brown on basal part of tibiae, with indistinct darker rings on femora (subdistally) and tibiae (subdistally), without spines, curved and vertical hairs. Females: In general similar to males, Habitus as in figs 1S, T, but legs yellowish, with more distinct darker rings than in male. Tibia 1: 8.99 (only one specimen with leg 1). Epigynum as in figs 1U and 14E, brown with distinctive pattern; with a very short worm-shaped knob (arrow in fig. 14E). Dorsal view as in fig. 14F. Distribution: Only known from type locality at present.
description: Published as part of Tong, Yanfeng & Li, Shuqiang, 2010, Eight new spider species of the genus Pholcus (Araneae, Pholcidae) from China, pp. 35-55 in Zootaxa 2355 on pages 51-55
description: {"references": ["Zhang, F. & Zhu, M. S. (2009) A review of the genus Pholcus (Araneae: Pholcidae) from China. Zootaxa, 2037, 1 - 114.", "Song, D. X., Zhu, M. S. & Chen, J. (1999) The Spiders of China. Hebei Science and Technology Publishing House, Shijiazhuang, 640 pp."]}
Using Supervised Learning to Improve Monte Carlo Integral Estimation
Creators: name: Tracey, Brendan
name: Wolpert, David
name: Alonso, Juan J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Machine Learning (stat.ML)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Monte Carlo (MC) techniques are often used to estimate integrals of a multivariate function using randomly generated samples of the function. In light of the increasing interest in uncertainty quantification and robust design applications in aerospace engineering, the calculation of expected values of such functions (e.g. performance measures) becomes important. However, MC techniques often suffer from high variance and slow convergence as the number of samples increases. In this paper we present Stacked Monte Carlo (StackMC), a new method for post-processing an existing set of MC samples to improve the associated integral estimate. StackMC is based on the supervised learning techniques of fitting functions and cross validation. It should reduce the variance of any type of Monte Carlo integral estimate (simple sampling, importance sampling, quasi-Monte Carlo, MCMC, etc.) without adding bias. We report on an extensive set of experiments confirming that the StackMC estimate of an integral is more accurate than both the associated unprocessed Monte Carlo estimate and an estimate based on a functional fit to the MC samples. These experiments run over a wide variety of integration spaces, numbers of sample points, dimensions, and fitting functions. In particular, we apply StackMC in estimating the expected value of the fuel burn metric of future commercial aircraft and in estimating sonic boom loudness measures. We compare the efficiency of StackMC with that of more standard methods and show that for negligible additional computational cost significant increases in accuracy are gained.
description: 18 pages, 10 figures, originally published by AIAA at the 13th Non-Deterministic Approaches Conference