bluuebunny/crossref_metadata_2025_split huggingface dataset:
Rock property modelling and sensitivity analysis for hydrocarbon exploration in OSSY field, Niger Delta Basin
Authors: Ogbamikhumi Alexander , Omorogieva Osakpolor Marvellous 
Published: December 2021

AbstractThe application of quantitative interpretation techniques for hydrocarbon prospect evaluation from seismic has become so vital. The effective employment of these techniques is dependent on several factors: the quality of the seismic and well data, sparseness of data, the physics of rock, lithological and structural complexity of the field. This study adopts reflection pattern, amplitude versus offset (AVO), Biot–Gassmann fluid substitution and cross-plot models to understand the physics of the reservoir rocks in the field by examining the sensitivity of the basic rock properties; P-wave velocity, S-wave velocity and density, to variation in lithology and fluid types in the pore spaces of reservoirs. This is to ascertain the applicability of quantitative seismic interpretation techniques to explore hydrocarbon prospect in the studied field. The results of reflection pattern and AVO models revealed that the depth of interest is dominated by Class IV AVO sands with a high negative zero offset reflectivity that reduces with offset. The AVO intercept versus gradient plot indicated that both brine and hydrocarbon bearing sands can be discriminated on seismic. Fluid substitution modelling results revealed that the rock properties will favourably respond to variation in oil saturation, but as little as 5% gas presence will result in huge change in the rock properties, which will remain constant upon further increments of gas saturation, thereby making it difficult to differentiate between economical and sub-economical saturations of gas on seismic data. Rock physics cross-plot models revealed separate cluster points typical of shale presence, brine sands and hydrocarbon bearing sands. Thus, the response of the rock properties to the modelling processes adopted favours the application of quantitative interpretation techniques to evaluate hydrocarbon in the field.
Tourniquet Pressure: The Effect of Limb Circumference and Systolic Blood Pressure
Authors: VAN ROEKEL H. E. , THURSTON A. J. 
Published: December 2021

Complications attributable to direct pressure may result from the use of pneumatic tourniquets during surgical procedures. Traditional estimates have determined the pressures employed rather than the minimal pressure necessary to produce a bloodless field. To determine this pressure, pre-operative and post-operative systolic blood pressures and the tourniquet pressure at which capillary bleeding occurred were measured in a group of patients undergoing elective surgery of the upper and lower limbs. From these results two equations were derived, one for each of the upper and lower limbs, which give the minimum tourniquet pressures to produce bloodless fields. In an average sized, normotensive patient, 200mm Hg was found to be adequate for the upper limb and 250mm Hg for the lower limb.
Pseudogout of the Wrist Presenting as Acute Median Nerve Compression
Authors: GOODWIN D. R. A. , ARBEL R. 
Published: December 2021

Two cases are reported of acute median nerve compression due to calcium pyrophosphate deposition in the wrist, masquerading as a septic condition. There have been recent reports in the literature of the effects of calcium pyrophosphate in joints of the upper limb (Resnick 1983 and Hensley, 1983) These conditions are uncommon and the presentation and initial symptomatology of our case led in the first patient to misdiagnosis and an unnecessary operation, which was avoided in the second case.
Irreducible Compound Dorsal Dislocations of the Proximal Interphalangeal Joint of the Finger
Authors: KJELDAL INGER 
Published: December 2021

Three cases of compound irreducible dorsal dislocation of the proximal interphalangeal joint of the finger are reported. The probable mechanism is discussed. The findings warrant the description “volar capsular boutonnière” as the condyles of the proximal phalanx buttonhole, through the volar structures. Open reduction combined with debridement, is the treatment for such compound irreducible dorsal dislocations. Dislocation of the proximal interphalangeal joints of the fingers are common and can usually be reduced by simple traction. Occasionally reduction by closed methods is unsuccessful because of interposition of volar or dorsal soft tissue structures (Lamb 1981). This study reports three cases of compound dorsal dislocation of the proximal interphalangeal joint with volar soft tissue interposition. Such lesions are sparsely mentioned in text books on fractures and hand injuries and hitherto only a few cases have been published (Lamb 1981, Bunnell 1956).
Compressed Air Injuries of the Hand
Authors: KLARESKOV B. , GEBUHR P. , RØRDAM P. 
Published: December 2021

Two cases of injection of compressed air into the hand are reported. The air was injected under a pressure of 5–15 Atm. Both cases had a benign course. This is in contrast to high pressure injection (40–400 Atm) with foreign material. Both patients had minor skin lesions before the accident.
Ethics and Confidentiality: Reflections and Lessons Learned Post-Parent and Bruckert v R and Magnotta
Authors: McClelland Alexander , Bruckert Chris 
Published: December 2021

AbstractIn May 2012, a former research assistant contacted the Montréal police about an interview he had conducted with Luka Magnotta for the SSHRC-funded research projectSex Work and Intimacy: Escorts and their Clientsfour years previously. That call ultimately resulted in theParent and Bruckert v R and Magnottacase. Now, a decade later, we are positioned to reflect on the collective lessons learned (and lost) from the case. In this paper, we provide a lay of the Canadian confidentiality landscape before teasing out ten lessons fromParent c R.To do so, we draw on personal archives, survey results from sixty researchers, twelve key informant interviews with qualitative sociolegal and criminology researchers, and documentary analysis of university research policies. The lessons, which range from the clichéd, to the practical, to the frustrating, have implications for the individual work of Canadian researchers and for the collective work of academic institutions.
The Syrian Constitution at the end of the civil war: Is there a constitutional way to democratization?
Authors: Porras-Gómez Antonio-Martín 
Published: December 2021

AbstractThe 2012 Syrian Constitution has been largely (dis)regarded as embodying a mere policy intent to placate contestation, leaving the resorts of monocratic power untouched. While this might be true, there were formal changes whose study is worthwhile to understand the possibilities for some degree of democratization. This article delves into the 2012 charter and its main innovations, asking, first, from a descriptive-analytical perspective, what are the main trends underlying contemporary Syrian constitutional politics? Second, from an explanatory perspective, what specific constitutional provisions prevent the rule of law and the material constitutional transformation in democratic terms? What legal-institutional mechanisms account for this phenomenon? While the 2012 formal constitutional changes can be conceived as a ‘blueprint’ revealing governmental priorities, the outstanding democratic deficits might help to identify the opposition's priorities. Together, they contribute to delineate a bargaining range for the ongoing constituent negotiations.
Transient evolution of basal drag during glacier slip
Authors: Zoet Lucas K. , Iverson Neal R. , Andrews Lauren , Helanow Christian 
Published: December 2021

AbstractGlacier slip is usually described using steady-state sliding laws that relate drag, slip velocity and effective pressure, but where subglacial conditions vary rapidly transient effects may influence slip dynamics. Here we use results from a set of laboratory experiments to examine the transient response of glacier slip over a hard bed to velocity perturbations. The drag and cavity evolution from lab experiments are used to parameterize a rate-and-state drag model that is applied to observations of surface velocity and ice-bed separation from the Greenland ice sheet. The drag model successfully predicts observed lags between changes in ice-bed separation and sliding speed. These lags result from the time (or displacement) required for cavities to evolve from one steady-state condition to another. In comparing drag estimates resulting from applying rate-and-state and steady-state slip laws to transient data, we find the peaks in drag are out of phase. This suggests that in locations where subglacial conditions vary on timescales shorter than those needed for cavity adjustment transient slip processes control basal drag.
East-Greenland traditional nutrition: a reanalysis of the Høygaard et al. nutritional data (1936–1937)
Authors: Mullie Patrick , Deliens Tom , Clarys Peter 
Published: December 2021

AbstractGreenlandic traditional nutrition was unique in the arctic environment. The aim of the present study was to reanalyse the Høygaard et al. data, focusing on two micronutrients object of discussion, i.e. Ca and vitamin C. Høygaard et al. left Copenhagen in August 1936 and stayed in East-Greenland until August 1937. The members of the expedition recorded nutritional intake whilst residing in families. However, the nutritional intake was analysed on a household level. In total, thirty-five adults and fourty-one children participated. Median total energy expenditure in kcal per d was estimated at 2978 and 2627 for male and female adults, respectively, and 1997 for children and adolescents. Median (IQR) energy consumption in kcal per d was 3881 (1568) for male and 2910 (882) for female adults. This was 2442 (857) and 2023 (1122) for male and female children and adolescents. Median (IQR) Ca intake in mg.d–1 was 555 (1110) for male and 484 (883) for female adults. This was 458 (747) and 358 (838) for male and female children and adolescents. Median (IQR) vitamin C intake in mg.d–1 was 79 (77) for male and 59 (56) for female adults. This was 44 (47) and 60 (52) for male and female children and adolescents. In this study, the importance of traditional foods in reaching an acceptable energy balance was emphasised, together with the confirmation of a low Ca intake in East-Greenland traditional dietary pattern, and the important role of algae consumption in Inuit traditional dietary pattern to avoid scurvy.
From Chatter to Action: How Social Networks Inform and Motivate in Rural Uganda
Authors: Larson Jennifer M. , Lewis Janet I. , Rodriguez Pedro L. 
Published: December 2021

AbstractFrom public health to political campaigns, numerous attempts to encourage behavior begin with the spread of information. Of course, seeding new information does not guarantee action, especially when it is difficult for receivers to verify this information. We use a novel design that introduced valuable, actionable information in rural Uganda and reveals the intermediate process that led many in the village to hear the information but only some to act on it. We find that the seeded information spread easily through word of mouth via a simple contagion process. However, acting on the information spread less easily; this process relied instead on endogenously created social information that served to vet, verify, and pass judgment. Our results highlight an important wedge between information that a policy intervention can best control and the behavior that ultimately results.
Language, Ethnicity, and Separatism: Survey Results from Two Post-Soviet Regions
Authors: Marquardt Kyle L. 
Published: December 2021

AbstractScholars often use language to proxy ethnic identity in studies of conflict and separatism. This conflation of language and ethnicity is misleading: language can cut across ethnic divides and itself has a strong link to identity and social mobility. Language can therefore influence political preferences independently of ethnicity. Results from an original survey of two post-Soviet regions support these claims. Statistical analyses demonstrate that individuals fluent in a peripheral lingua franca are more likely to support separatism than those who are not, while individuals fluent in the language of the central state are less likely to support separatist outcomes. Moreover, linguistic fluency shows a stronger relationship with support for separatism than ethnic identification. These results provide strong evidence that scholars should disaggregate language and ethnic identity in their analyses: language can be more salient for political preferences than ethnicity, and the most salient languages may not even be ethnic.
The interaction of working memory capacity and engagement with recasts on different L2 outcome measures: A replication of Révész (2012)
Authors: Alipour Javad , Mohebi Maryam , Roohani Ali 
Published: December 2021

AbstractWe report on a conceptual replication of Révész (2012) in order to investigate the idea whether learners provided with recasts do engage in different kinds of behavioral engagement as a function of their working memory and if/how this engagement comes to bear on performance on different measures. Engagement with recasts was measured through a coding method categorizing responses to the recasts running the gamut from: (1) no opportunity, (2) opportunity, but did not repeat, (3) repeated the recasted form, (4) negotiated the response, to (5) used the recasted form later in the discourse. Consistent with Révész (2012), though with lower effect sizes, the results showed that recasts were most conducive to gains on an oral task and less so on a written description task, but non-effective on a grammaticality judgment task. Furthermore, it was revealed that learners with a high phonological short-term memory were more prone to recast-induced engagement on an oral production task, whereas those enjoying a higher reading span were considerably less so. We propose that learner engagement be deemed more important in future interaction research.
On the measurement of need-based justice
Authors: Springhorn Nils 
Published: December 2021

AbstractNeed-based justice is an important ingredient for a pluralistic theory of justice. But how can need-based justice be measured? I will argue that need-based justice cannot be measured by measuring need-satisfaction. This is because need-based justice does not only depend on need-satisfaction, but also on opportunities to avoid or at least mitigate undersupply. Depending on these opportunities, one and the same degree of undersupply can be unjust to different degrees. In this article, I establish a number of desiderata that a measure of need-based justice has to comply with. Resulting measures treat avoidable undersupply as the main source of injustice.
“All I See Is Your Booty and Cleavage”: Sex and the Contemporary Gospel Song (1988–2017)
Authors: Pollard Deborah Smith 
Published: December 2021

AbstractGospel songs traditionally feature lyrics that glorify God. However, there is music by contemporary gospel artists that addresses pre-marital sex, homosexuality, and pornography. The fact that these topics are being lyrically confronted by some of the genre's most recognized performers invites exploration into the content, purpose, and impact of the songs.This article places these lyrics into categories: those that are testimonial narratives about the spiritual deliverance the singer has received after transgressing sexual mores of the Black Church and those that encourage the avoidance of specific sexual practices. These songs contribute to gospel music on several levels, providing a platform through which the artists can testify of their sexual journeys while giving listeners a format through which they can find direction regarding sexual steps, missteps, and spiritual realignment.The article delineates the changes within US culture that led to less silence about sex and support for the LGBTQIA+ community from some within the Black Church. The major analysis involves the lyrics, the differences in what men and women tend to address, and the fact that despite breaking new ground, in virtually every instance, they reflect traditional Biblical interpretations.
Music is a Place: Oprys and the Rural Working-Class Constitution of Public Space
Authors: Flood Liza Sapir 
Published: December 2021

Abstract“Oprys” are public musicking events found in Appalachia and beyond. They facilitate regular embodied sociality between strangers and friends in a region often characterized by the social fallout of neoliberal economic trends. Drawing on ethnographic research in Tennessee and elsewhere, I show that oprys constitute rural working-class public space where participants negotiate a precarious cultural order through the affordances of live country music performance. But political discourse in these spaces is articulated primarily through embodied, performative, and aesthetic realms which are not captured in a delimited and classed notion of discourse as primarily text or talk. As such, oprys offer a corrective to our understanding of what counts as discursive contestation. I foreground two particular cultural imperatives that structure oprys: participation and accommodation. These imperatives produce a socio-cultural event that characteristically refuses the monetization of space and privileges dialogic sociality over the production of artistic sound. Approaching oprys through the frame of “counterpublic” reveals a different way of imagining public space, public music making and sociality, and the terrain of political discourse.
Compact line source generator for feeding continuous transverse stub arrays
Authors: Qiu Houtong , Yang Xue-Xia , Li Meiling , Yi Zixuan 
Published: December 2021

AbstractBased on a substrate integrated lens (SIL), a compact line source generator (LSG) for feeding continuous transverse stub (CTS) arrays with linear-polarized (LP) beam scanning and dual-polarized (DP) operations is presented in this paper. The SIL consists of metamaterial cells with different sizes being arranged as concentric annulus and is printed on the center surface of two substrate layers. The SIL can convert the cylindrical wave generated by the feed probe of SIW-horn to the planar wave for feeding the CTS array. This rotationally symmetric SIL can be used conveniently to design LSG for feeding CTS arrays with the continuous beam scanning and DP operations, which has been verified by the fabrications and measurements. By simply rotating the SIW-horn along the edge of SIL, the 10-element LP-CTS array obtains a measured beam scanning range of ±35° with the highest gain of 20.6 dBi. By setting two orthogonal SIW-horns at the edge of the proposed SIL, the nine-element DP-CTS array with orthogonal radiation stubs is excited. The DP array obtains the gain of 20.3 dBi at the center frequency with the isolation of 28 dB and the cross-polarization level <−25 dB.
The Missing Magmas of MOR: Insights From Phase Equilibrium Experiments on Plagioclase Ultraphyric Basalts
Authors: Ustunisik Gokce K. , Nielsen Roger L. , Walker David 
Published: December 2021

AbstractPlagioclase ultraphyric basalts (PUBs) are a class of mid‐ocean ridge (MOR) lavas found in a variety of ocean floor environments, are characterized by abundant (15–40 volume %) plagioclase megacrysts and a diverse trace element and isotopic signature. Paradoxically, we never see lavas erupted on the seafloor that are in equilibrium with these PUB megacrysts. Based on petrographic evidence, melt inclusion composition, and new data on depth of entrapment calculated from CO2 contents in plagioclase‐hosted inclusions, many of the megacrysts formed at upper mantle pressures (∼3–7 kbars). To constrain the composition of the parent magmas of the plagioclase megacrysts, we conducted a series of experiments at 5 and 10 kbars using mid‐ocean ridge basalts glasses as starting materials. The experimental results were consistent with the presence of a pseudoazeotrope in the anorthitic segment of the plagioclase + basalt pseudobinary. This has the effect of dropping the anorthitic end of the feldspar loop, lowering the solidus for upper mantle conditions, and driving evolving magmas toward higher Ca. As magmas rise and pressure drops, the pseudoazeotrope disappears, and the feldspar loop at the high‐An end rises, causing those magmas to undergo decompression crystallization of plagioclase and resorption of olivine. Therefore, the conditions which generated the magmas from which the megacrysts form disappear as the magmas rise and magmas evolve toward lower Ca, Mg (as we normally assume during plagioclase + olivine crystallization). In effect, the phase equilibria conditions that allow for the generation of such liquids also prevent them from being erupted as lavas.
The Illumination of Thunderclouds by Lightning: 1. The Extent and Altitude of Optical Lightning Sources
Authors: Peterson Michael , Light Tracy E. L. , Mach Douglas 
Published: December 2021

AbstractOptical space‐based lightning sensors including NOAA's Geostationary Lightning Mapper (GLM) detect lightning though its transient illumination of the surrounding clouds. What space‐based optical lightning sensors measure is influenced by the physical attributes of the light source, the location of the source within the cloud scene, and the spatial variations in cloud composition. We focus on the lightning channels that serve as optical sources for GLM groups and flashes in this first part of our thundercloud illumination study. We match Lightning Mapping Array (LMA) sources with GLM groups and flashes during two thunderstorms to examine channel segments that are active during optical emission. We find that in each storm, the LMA sources matched with GLM groups are small (median: 3 km) compared to GLM pixels (nominal: 8 km), and preferentially come from high altitudes in the cloud (>8–10 km). The detection advantage for high‐altitude sources permits GLM to resolve faint optical pulses near the cloud top that might be missed from lower altitudes. However, the most energetic groups can be detected from all altitudes, and the largest groups largely originate at low altitudes. The relationship between group energy and illuminated area depends on flash development within the cloud medium, and flash development into different cloud regions can be identified by tracking GLM metrics of cloud illumination over time.
DNA/RNA heteroduplex oligonucleotide technology for regulating lymphocytes in vivo
Authors: Ohyagi Masaki , Nagata Tetsuya , Ihara Kensuke , Yoshida-Tanaka Kie , Nishi Rieko , Miyata Haruka , Abe Aya , Mabuchi Yo , Akazawa Chihiro , Yokota Takanori 
Published: December 2021

AbstractManipulating lymphocyte functions with gene silencing approaches is promising for treating autoimmunity, inflammation, and cancer. Although oligonucleotide therapy has been proven to be successful in treating several conditions, efficient in vivo delivery of oligonucleotide to lymphocyte populations remains a challenge. Here, we demonstrate that intravenous injection of a heteroduplex oligonucleotide (HDO), comprised of an antisense oligonucleotide (ASO) and its complementary RNA conjugated to α-tocopherol, silences lymphocyte endogenous gene expression with higher potency, efficacy, and longer retention time than ASOs. Importantly, reduction of Itga4 by HDO ameliorates symptoms in both adoptive transfer and active experimental autoimmune encephalomyelitis models. Our findings reveal the advantages of HDO with enhanced gene knockdown effect and different delivery mechanisms compared with ASO. Thus, regulation of lymphocyte functions by HDO is a potential therapeutic option for immune-mediated diseases.