bluuebunny/crossref_metadata_2025 huggingface dataset:
Por um pensamento aerífero: notas sobre o ar nos curtas-metragens de Cao Guimarães
Authors: De Almeida Rafael
Published: July 2020

Havendo reconhecido a presença difusa do elemento ar na produção curta-metragista do cineasta e artista visual Cao Guimarães, pretendemos investigar a manifestação do ar, enquanto elemento poético, na produção curta-metragista do realizador em relação com noções como a leveza, a imaterialidade, a fluidez e o movimento. Partimos da hipótese de que a recorrência estilístico-temática do elemento ar nos permitiria reconhecer em nosso corpus a formação de um pensamento poético aerífero. Ou seja, um pensamento que simultaneamente dá passagem ao ar e o reserva, que acolhe e se alimenta do sopro do real, sem impedir sua passagem ou aprisioná-lo. Realizaremos uma investigação analítico-descritiva de quinze curtas-metragens, de modo a perceber de que forma cada um deles agencia o ar enquanto elemento poético. O nosso corpus será composto pelas seguintes obras de Cao Guimarães: The eye land (1999); Between – inventário de pequenas mortes (2000); Sopro (2000); Hypnosis (2001); Volta ao mundo em algumas páginas (2002); Aula de anatomia (2003); Nanofonia (2003); Concerto para clorofila (2004); Da janela do meu quarto (2004); Atrás dos olhos de Oaxaca (2006); Peiote (2007); Sin peso (2007); El pintor tira el cine a la basura (2008); O sonho da casa própria (2008); O inquilino (2010). Por fim, nossa intenção é sinalizar que a pertinência da compreensão do pensamento poético aerífero no trabalho de Cao Guimarães está conectada tanto à estética videográfica assumida pelas obras, quanto à capacidade de dar passagem e reter o real.
Analysis of the distribution of BAD generated during the normal penetration of a variable cross-section EFP on RHA
Authors: XING Boyang , HOU Yunhui , GUO Zhenyan , ZHANG Dongjiang , CHEN Liang , Yang Yongliang , Luo Jianhua , LIU Rongzhong , GUO Rui
Published: July 2020

The purpose of this study is to analyse how the thickness of Rolled Homogeneous Armor (RHA) and impact velocity of an Explosively Formed Projectile (EFP) influence the middle mass behind-armor debris (BAD) when a variable cross-section EFP penetrates RHA normally. Numerical simulation is adopted, the thickness of RHA varies from 10mm to 70mm, and the impact velocity of the EFP varies from 1650m/s to 1860m/s. The results indicate that: (1) when the impact velocity of the EFP is 1650m/s and the thickness of RHA varies from 10mm to 70mm, p1g of the RHA and EFP decreases with increasing H0. The thin target could be used to produce a large proportion of the middle mass BAD from RHA (including BAD from the EFP and BAD from the RHA and EFP). (2) When the impact velocity of the EFP varies from 1650m/s to 1860m/s and the thickness of the RHA is 40mm, p1g of the RHA is less than 50%, p1g of the EFP is more than 70%, and p1g of the RHA and EFP is more than 50%.
Bayesian model selection for metal yield models in high-velocity impact
Authors: Portone Teresa , Niederhaus John , Sanchez Jason , Swiler Laura
Published: July 2020

There are multiple candidate models for the von Mises yield stress in elastoplastic models that are used to simulate material deformation in high-velocity impact. Previous work has studied the effects of such models on quantities of interest in high-strain-rate deformation, in order to select the most appropriate model in comparison to experimental data [1-2]. This work focuses on selecting between three such models, based on their ability to reproduce time-varying depth of penetration data of a tungsten-alloy rod impacting a hardened steel plate at high velocity, measured by Anderson, Hohler et al. [3]. Novel in the present study is the systematic treatment of uncertainty in the process, and automation of the process. The three models considered are the Johnson-Cook (JC), Zerilli-Armstrong (ZA), and Steinberg-Guinan-Lund (SGL) flow stress models [4-6].
Electrically-Launched mm-sized Hypervelocity Projectiles
Authors: Uhlig W. Casey , Berning Paul R. , Bartkowski Peter T. , Coppinger Matthew J.
Published: July 2020

A series of experiments and simulations were performed as proof of concept that an electrically powered research gun could propel small cylindrical projectiles to hypervelocities. Although small-caliber electrothermal accelerators and other electromagnetic launch systems have been utilized for some years for laboratory hypervelocity impact and other studies [1-5], we developed a simple, reproducible device that allows impact studies and direct comparison to magnetohydrodynamic (MHD) simulations for design considerations, efficiency improvements, and validation studies. This work focusses on 4.8 mm cylindrical 7075-T6 aluminum projectiles with a length to diameter ratio of one (nominally a mass of 0.24 grams) and a 150-mm long, 25-mm outer-diameter 4043 steel barrel with a 4.8-mm diameter bore and 9.5-mm chamber that acts as the electrical cathode. The anode consists of a 6.3-mm diameter copper rod that is reduced to 2.9 mm then tapered to a point with the tip length over diameter ratio (L/D) varying from 2 to 5. The tip is placed at the chamber/bore junction. The copper anode is insulated by a polyethylene sleeve and epoxy surrounding the electrode such that the arc initiates only at the very tip. A 191 μF capacitor was used as the power source for all experiments. The applied voltage was varied from 10 kV to 20 kV, and the resulting inductance of the system varied from approximately 320 nH to 450 nH (due to varying separation in the copper transmission lines). Fits to the current pulse using an LRC circuit resulted in resistance on the order of 10 mΩ to 15 mΩ. Typically the portion of the electrical pulse responsible for the bulk of the acceleration of the projectile occurs within the first 15 μs; however, the projectile is accelerated during the entirety of the time it remains in the barrel, which is on the order of 40 μs to 50 μs.
Consequences of micrometeoroid/orbital debris penetrations on the International Space Station
Authors: Evans Hilary J. , Hyde James L. , Christansen Eric L. , Lear Dana M.
Published: July 2020

Risk from micrometeoroid and orbital debris (MMOD) impacts on space vehicles is often quantified in terms of the probability of no penetration (PNP). However, for large spacecraft, especially those with multiple compartments, a penetration may have a number of possible outcomes. The extent of the damage (diameter of hole, crack length or penetration depth), the location of the damage relative to critical equipment or crew, crew response, and even the time of day of the penetration are among the many factors that can affect the outcome. For the International Space Station (ISS), a Monte-Carlo style software code called Manned Spacecraft Crew Survivability (MSCSurv) is used to predict the probability of several outcomes of an MMOD penetration—broadly classified as loss of crew (LOC), crew evacuation (EVAC), loss of escape vehicle (LEV), and nominal end of mission (NEOM). By generating large numbers of MMOD impacts (typically in the hundreds of billions) and tracking the consequences, MSCSurv allows for the inclusion of a large number of parameters and models as well as enabling the consideration of uncertainties in these models and parameters. MSCSurv builds upon the results from NASA’s Bumper software (which provides the probability of penetration and critical input data to MSCSurv) to allow analysts to estimate the probability of LOC, EVAC, LEV, and NEOM. This paper provides an overview of the methodology used by NASA to quantify LOC, EVAC, LEV, and NEOM with particular emphasis on describing in broad terms how MSCSurv works and its capabilities and most significant models.
Prediction of Micrometeoroid Damage to Lunar Construction Materials using Numerical Modeling of Hypervelocity Impact Events
Authors: Allende Maria I. , Miller Joshua E. , Davis B. Alan , Christiansen Eric L. , Lepech Michael D. , Loftus David J.
Published: July 2020

Constructing a human-occupied Lunar base presents a unique civil engineering challenge; the resources to make conventional construction materials are unavailable. One approach, known as in-situ resource utilization (ISRU), proposes transforming local resources into construction materials [1,2]. One of the Moon’s most abundant resources is the unconsolidated surface “soil”, known as regolith. Several methods for transforming regolith into useful engineering elements, known as regolith stabilization, have been proposed and are the subjects of ongoing research efforts [e.g., 3-9]. One class of stabilized regolith material, Biopolymer-Bound Soil Composites (BSC), consists of regolith mixed with a small amount of biopolymer binding agent (10% w/w). BSC compares favorably to other stabilized regolith materials because it does not require high temperature or high energy input and uses a relatively small fraction of binder to achieve an average compressive strength of 20 MPa.
Size scaling of crater size, ejecta mass, and momentum enhancement due to hypervelocity impacts into 2024-T4 and 2024-T351 aluminum
Authors: Walker James D. , Chocron Sidney , Grosch Donald J.
Published: July 2020

Momentum enhancement occurs when impactors strike objects at hypervelocities due to the formation of crater ejecta whose departure from the impact body impart more momentum to the impacted body. In previous work the momentum enhancement caused when metals, rock, and pumice were impacted have been examined [1-7]. Momentum enhancement is quantified by β, which is the ratio of the resulting target momentum by the impactor momentum. By quantifying momentum enhancement it is possible to make informed decisions about the use of hypervelocity impactors to deflect celestial bodies such as asteroids or comet nuclei.
Numerical study of dynamic behavior of foams subjected to high- to hyper-velocity impact
Authors: Zhang Xiaotian , Wang Ruiqing , Li Q.M.
Published: July 2020

Hypervelocity tests and numerical studies have been reported in the literature for aluminum foam to show its potential applications in spacecraft shielding against space debris based on “shielding set-up”. Meanwhile the “forward impact” set-up has been widely reported in the literature to study the dynamic behavior of the foam materials in the range of low to intermediate impact velocities. This paper extends the forward impact to high- and hyper-velocity impacts to understand the dynamic deformation and failure mechanisms based on numerical simulation. The focused impact velocity range is from about 1km/s to 6km/s. The cell-based numerical model of the foam material is used along with the Smoothed Particle Hydrodynamics (SPH) method to simulate the deformation and the failure process. The failure of the foam materials in the range of intermediate to high impact velocities is related to the plastic yielding and crushing of the foam cell, while that in the hypervelocity impact regime is related to the cell material erosion. Dynamic effects in different impact velocity ranges also lead to shock and strain-rate effects. Understanding of the dependence of the deformation/failure mechanisms on the impact velocity helps to determine the application of foam materials in the relevant range of impact velocities.
Filling the Gap between Hypervelocity and Low Velocity Impacts
Authors: Arnold Werner , Hartmann Thomas , Rottenkolber Ernst
Published: July 2020

During more than one decade of studying initiation phenomenology numerous papers at the previous HVIS and other symposia ([1] - [12]) were published. Most of them dealt with the hypervelocity impact initiation of plastic bonded high explosive charges by shaped charge jets (SCJ) and a few ones reported results in the ordnance velocity impact regime with STANAG projectiles and explosively formed projectiles (EFP) ([2] & [11]). A recent finding of our investigations of shaped charge jet (SCJ) attacks suggests that the critical stimulus S = v2∙d (v = SCJ / projectile velocity; d = SCJ / projectile diameter) for the initiation of a munition can no longer be seen as a constant (S ≠ const.) ([11] & [10]). Also, known equations, e.g. Jacobs-Roslund [13], are not capable to describe low velocity and hypervelocity impacts with the same parameter set.
Study on the explosion-proof performance of polyurea-reinforced masonry walls with different spraying methods
Authors: Shang Wei , Zu Xu-dong , Huang Zheng-xiang , Shen Wen-ni
Published: July 2020

Based on the propagation theory of blast waves and the strain rate effect of polyurea, the explosion-proof performance of polyurea-reinforced masonry walls with different spraying methods is discussed in this paper. The impact fracture of masonry walls after contact explosion was analyzed, and the fracture results of a blast wave on polyurea-reinforced masonry walls with different spraying methods were predicted. Furthermore, explosion-proof experiments of a standard masonry wall (2m×1.2m×0.37m) under three conditions including non-sprayed, back surface sprayed polyurea and double-sided sprayed polyurea were carried out to verify the theoretical predictions. Finally, the impact fracture results of standard masonry walls after a 1 kg TNT contact explosion under the three conditions were obtained. The test results were in good agreement with the theoretical predictions. It clearly demonstrated that polyurea coating can significantly improve the explosion-proof performance of masonry walls, and double-sided sprayed showed better explosion-proof performance than back surface sprayed at the same coating thickness.
Characterization of the ballistic properties of ejecta from laser shock-loaded samples using high resolution picosecond imaging
Authors: Sollier Arnaud , Lescoute Emilien
Published: July 2020

Anticipating the generation of high velocity debris from shock-loaded specimens and the damage that their impacts may cause to nearby equipment is a major safety issue in applications involving shock waves, such as pyrotechnics [1] or inertial confinement fusion (ICF) experiments on large scale laser facilities [2]. Microjetting is one of the processes governing such debris generation. It is due to the interaction of a shock wave with a free surface presenting geometrical defects such as pits, cavities, scratches, or grooves, leading to material ejection from these defects, in the form of thin jets expanding ahead of the main surface and breaking up into small particles [3]. Over the last few years, we have used laser shock loading in order to expand microjetting investigations over ranges of small spatial scales (μm scale), extremely high loading rates (~ 107 s-1) and very short pressure pulses (a few ns) [4-11]. Optical shadowgraphy and Photonic Doppler Velocimetry (PDV) have been used to measure both jet tip and planar surface velocities [4-6], while attempts to infer fragments size distributions, to be compared with model predictions, have been made using either fast transverse shadowgraphy [7] or ejecta recovery [8]. More recently, picosecond x-ray radiography has been used to provide estimates of the density gradients along the jets and of the total ejected mass at different times after shock breakout [9-11]. Here, we present the development of a new picosecond laser imaging diagnostic intended to overcome the limitations of our current transverse optical shadowgraphy setup. We describe our experimental setup and show the results of our first experiments performed using both visible (532 nm) and UV (355 nm) lightning of the sample. These results are compared to those obtained at LANL under high explosive loading using ultraviolet in-line Fraunhofer holography [12], and also to molecular dynamics (MD) simulations performed by our colleagues at lower space and time scales [15-18].
Higher-order finite elements for lumped-mass explicit modeling of high-speed impacts
Authors: Browning Robert S. , Danielson Kent T. , Adley Mark D.
Published: July 2020

Classical finite element analysis (FEA) continues to be a primary computational method of choice for most solid mechanics applications and the explicit method is significantly used in the defense industry for high-speed impact analysis. The explicit lumped-mass approach, without a stiffness matrix, is well suited for rapidly changing/high rate short duration applications, but can produce distinct nuances and severely affect element performances differently than in typical static/implicit methods. In contrast to automatic tetrahedral meshing approaches applied to the entire volume, hexahedral-dominant modeling methods (e.g., [1-3]) attempt to mesh with all hexahedral elements and then automation with other element types is applied only to regions where the Hex mesher has trouble. The methods typically use wedge and/or pyramid elements to transition from hexahedral elements to fill volumes with other types. This results in models that typically have much fewer elements than with “all-Tet” approaches and generally contain the more desirable hex elements in large regions of the mesh. In this paper, the four 2nd order element types depicted in Fig. 1 are used, which authors [4-6] have found to mass lump well for explicit methods and have well-defined contact Fig. 1. 15-node tetrahedron, 19-node pyramid, 21-node wedge, and 27-node hexahedron type finite element topologies used in this paper; serendipity element versions are obtained by omitting the nodes on all faces and at the centroid
First Report of Candidemia Clonal Outbreak Caused by Emerging Fluconazole-Resistant Candida parapsilosis Isolates Harboring Y132F and/or Y132F+K143R in Turkey
Authors: Arastehfar Amir , Daneshnia Farnaz , Hilmioğlu-Polat Suleyha , Fang Wenjie , Yaşar Melike , Polat Furkan , Metin Dilek Yeşim , Rigole Petra , Coenye Tom , Ilkit Macit , Pan Weihua , Liao Wanqing , Hagen Ferry , Kostrzewa Markus , Perlin David S. , Lass-Flörl Cornelia , Boekhout Teun
Published: July 2020

Clonal outbreaks of fluconazole-resistant (FLZR)
Candida parapsilosis
isolates have been reported in several countries. Despite its being the second leading cause of candidemia, the azole resistance mechanisms and the clonal expansion of FLZR
C. parapsilosis
blood isolates have not been reported in Turkey. In this study, we consecutively collected
C. parapsilosis
blood isolates (
n 
= 225) from the fifth largest hospital in Turkey (2007 to 2019), assessed their azole susceptibility pattern using CLSI M27-A3/S4, and sequenced
ERG11
for all and
MRR1
,
TAC1
, and
UPC2
for a selected number of
C. parapsilosis
isolates.
SUMOylation Targets Adeno-associated Virus Capsids but Mainly Restricts Transduction by Cellular Mechanisms
Authors: Chen Qingxin , Njenga Robin , Leuchs Barbara , Chiocca Susanna , Kleinschmidt Jürgen , Müller Martin
Published: July 2020

Host factors within the cell are the major mode of restriction of adeno-associated virus (AAV) and keep it from fulfilling its maximum potential as a gene therapy vector. A better understanding of the intricacies of restriction would enable the engineering of better vectors. Via a genome-wide short interfering RNA screen, we identified that proteins of the small ubiquitin-like modifier (SUMO) pathway play an important role in AAV restriction. In this study, we investigate whether this restriction is targeted to the AAV directly or indirectly through host cell factors. The results indicate that both targets act in concert to restrict AAV.
Changing hospital organisational culture for improved patient outcomes: developing and implementing the leadership saves lives intervention
Authors: Linnander Erika , McNatt Zahirah , Boehmer Kasey , Cherlin Emily , Bradley Elizabeth , Curry Leslie
Published: July 2020

Background

Leadership Saves Lives (LSL) was a prospective, mixed methods intervention to promote positive change in organisational culture across 10 diverse hospitals in the USA and reduce mortality for patients with acute myocardial infarction (AMI). Despite the potential impact of complex interventions such as LSL, descriptions in the peer-reviewed literature often lack the detail required to allow adoption and adaptation of interventions or synthesis of evidence across studies. Accordingly, here we present the underlying design principles, overall approach to intervention design and core content of the intervention.

Methods of intervention development

Hospitals were selected for participation from the membership of the Mayo Clinic Care Network using random sampling with a purposeful component. The intervention was designed based on the Assess, Innovate, Develop, Engage, Devolve model for diffusion of innovation, with attention to pressure testing of the intervention with user groups, creation of a think tank to develop a comprehensive assessment of the landscape, and early and continued engagement with strategically identified stakeholders in multiple arenas.

Results

We provide in-depth descriptions of the design and delivery of the three intervention components (three annual meetings of all hospitals, four rounds of in-hospital workshops and an online community), designed to equip a guiding coalition within each site to identify and address root causes of AMI mortality and improve organisational culture.

Conclusions

This detailed practical description of the intervention may be useful for healthcare practitioners seeking to promote organisational culture change in their own contexts, researchers seeking to compare the results of the intervention with other leadership development and organisational culture change efforts, and healthcare professionals committed to understanding complex interventions across healthcare settings.
Pulmonary hypertension and right ventricular involvement in hospitalised patients with COVID-19
Authors: Pagnesi Matteo , Baldetti Luca , Beneduce Alessandro , Calvo Francesco , Gramegna Mario , Pazzanese Vittorio , Ingallina Giacomo , Napolano Antonio , Finazzi Renato , Ruggeri Annalisa , Ajello Silvia , Melisurgo Giulio , Camici Paolo Guido , Scarpellini Paolo , Tresoldi Moreno , Landoni Giovanni , Ciceri Fabio , Scandroglio Anna Mara , Agricola Eustachio , Cappelletti Alberto Maria
Published: July 2020

Objective

To assess the prevalence, characteristics and prognostic value of pulmonary hypertension (PH) and right ventricular dysfunction (RVD) in hospitalised, non-intensive care unit (ICU) patients with coronavirus disease 2019 (COVID-19).

Methods

This single-centre, observational, cross-sectional study included 211 patients with COVID-19 admitted to non-ICU departments who underwent a single transthoracic echocardiography (TTE). Patients with poor acoustic window (n=11) were excluded. Clinical, imaging, laboratory and TTE findings were compared in patients with versus without PH (estimated systolic pulmonary artery pressure >35 mm Hg) and with versus without RVD (tricuspid annular plane systolic excursion <17 mm or S wave <9.5 cm/s). The primary endpoint was in-hospital death or ICU admission.

Results

A total of 200 patients were included in the final analysis (median age 62 (IQR 52–74) years, 65.5% men). The prevalence of PH and RVD was 12.0% (24/200) and 14.5% (29/200), respectively. Patients with PH were older and had a higher burden of pre-existing cardiac comorbidities and signs of more severe severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection (radiological lung involvement, laboratory findings and oxygenation status) compared with those without PH. Conversely, patients with RVD had a higher burden of pre-existing cardiac comorbidities but no evidence of more severe SARS-CoV-2 infection compared with those without RVD. The presence of PH was associated with a higher rate of in-hospital death or ICU admission (41.7 vs 8.5%, p<0.001), while the presence of RVD was not (17.2 vs 11.7%, p=0.404).

Conclusions

Among hospitalised non-ICU patients with COVID-19, PH (and not RVD) was associated with signs of more severe COVID-19 and with worse in-hospital clinical outcome.

Trial registration number

NCT04318366
Immunization associated with primary tumor growth leads to rejection of commonly used syngeneic tumors upon tumor rechallenge
Authors: Alicke Bruno , Totpal Klara , Schartner Jill M , Berkley Amy M , Lehar Sophie M , Capietto Aude-Hélène , Cubas Rafael A , Gould Stephen E
Published: July 2020

The recent success of multiple immunomodulating drugs in oncology highlights the potential of relieving immunosuppression by directly engaging the immune system in the tumor bed to target cancer cells. Durable responses to immune checkpoint inhibitors experienced by some patients may be indicative of the formation of a T cell memory response. This has prompted the search for preclinical evidence of therapy-induced long-term immunity as part of the evaluation of novel therapeutics. A common preclinical method used to document long-term immunity is the use of tumor rechallenge experiments in which tumor growth is assessed in mice that have previously rejected tumors in response to therapy. Failure of rechallenge engraftment, typically alongside successful engraftment of the same tumor in naive animals as a control, is often presented as evidence of therapy-induced tumor immunity. Here, we present evidence that formation of tumor immunity often develops independent of therapy. We observed elevated rates of rechallenge rejection following surgical resection of primary tumors for four of five commonly used models and that such postexcision immunity could be adoptively transferred to treatment-naïve mice. We also show that tumor-specific cytolytic T cells are induced on primary tumor challenge independent of therapeutic intervention. Taken together these data call into question the utility of tumor rechallenge studies and the use of naïve animals as controls to demonstrate therapy-induced formation of long-term tumor immunity.
Facile and green synthesis of a series of dihydro-[1,2,4]triazolo[1,5-a]pyrimidine scaffolds
Authors: Zaharani Lia , Khaligh Nader Ghaffari , Mihankhah Taraneh , Johan Mohd Rafie , Hamizi Nor Aliya
Published: July 2020

This work presents a new catalytic application of 4,4′-trimethylenedipiperidine for the efficient synthesis of a series of dihydro-[1,2,4] triazolo[1,5-a]pyrimidines. According to the principles of green chemistry, the reaction was performed (a) in a solvent mixture comprised of water and ethanol (1:1 v/v) at reflux temperature and (b) solvent-free grinding in a mortar by a pestle. The organocatalyst could be reused up to 10 runs, and no reduction of catalytic activity was detected. A variety of substituted dihydro-[1,2,4] triazolo[1,5-a]pyrimidines were obtained in good to excellent yields under eco-friendly conditions. 4,4′-Trimethylenedipiperidine is commercially available and easy to handle, and it also shows high thermal stability and good solubility in water. This work revealed that this organocatalyst, a hydrogen bond donor to active carbonyl groups and simultaneously a Lewis base through the nitrogen atom of second piperidine moiety, could play a vital role in the promotion of the one-pot multi-component reactions. The main merits of the current methodology include short reaction time, wide substrate scope, use of a metal-free catalyst and green solvents, and simple work-up process. Furthermore, this organocatalyst can be an alternative to piperidine for organic transformations.
Directed Searching Optimization-Based Speech Enhancement Technique
Authors: Kumar Sandeep
Published: July 2020

In general, the background noise degrades the speech quality. Thus, the intelligibility of the speech can be enhanced by mitigating the effects of background noise and echo suppression. So, speech enhancement can also be viewed as one of the optimization problems. In this work, directed search optimization (DSO) method is used to enhance the speech quality which is originally degraded. The performance of DSO-based speech enhancement method is compared with particle swarm optimization (PSO) and least mean square (LMS)-based methods in terms of output average segmental SNR and speech quality. From the experimental results, it was observed that the output spectrogram, output ASSNR and speech quality using DSO algorithm are far better as compared to PSO and LMS-based methods. Moreover, DSO-based method is computationally less complex as compared to the PSO-based method.
Effectiveness of Factor XIII Infusion in Treatment of Refractory Ureteral Leakage after Kidney Transplantation
Authors: Maenosono Ryoichi , Matsunaga Tomohisa , Hirano Hajime , Nomi Hayahito , Taniguchi Shunri , Fujiwara Yuya , Minami Koichiro , Uehara Hirofumi , Inamoto Teruo , Azuma Haruhito
Published: July 2020

Despite the evolution of transplantation techniques, urological complications are common and result in loss of graft. We report the case of a 57-year-old man who developed continuous urine leakage despite pyeloureteral neoanastomosis and stenting after kidney transplantation from his dizygotic twin. Suspecting ureteral leakage, we performed pyeloureteral neoanastomosis using his native right ureter and a ureteral stent 5 days after the kidney transplant. However, urine leakage continued for several days. Because the plasma factor XIII level decreased to 48%, we administered factor XIII products (Fibrogammin P; CSL Behring, King of Prussia, PA) after the surgery. Although its utility and safety in patients with renal failure and/or transplantation are unclear, urine leakage stopped after the infusion of fibrogammin without any side effects. This is the first case report of the use of factor XIII for refractory urine leakage after kidney transplantation. Although further studies are needed, administration of factor XIII products could be one option for refractory urine leakage after transplantation.
Diagnosis and Surgical Management of a Retroperitoneal Lipoma in Pregnancy
Authors: Mitchell Katharina , Fuller Kylie , Thomay Alan , Shapiro Robert
Published: July 2020

Retroperitoneal lipomas during pregnancy are very rare. We report a case of a 29-year-old pregnant female who presented with a retroperitoneal lipoma. Our patient presented at 15-week gestation with abdominal pain, distention, and orthopnea. Due to vague symptoms and nonspecific imaging capabilities, retroperitoneal tumors in pregnancy are uniquely challenging with regard to diagnosis and treatment. We describe the unique work up of a retroperitoneal lipoma in pregnancy and the risks and benefits which were considered when optimizing care to the patient. Percutaneous core needle biopsy has accuracy rates for pathologic diagnosis of up to 98% and is largely safe to perform during pregnancy. Surgical resection of this type of tumor does not mandate cesarean delivery in subsequent pregnancies.
Triaxial Permeability Experimental Study on Deformation and Failure Processes of Single-Fractured Rock Specimens
Authors: Xiao Taoli , Huang Mei , Gao Min
Published: July 2020

A series of rock-like specimens with specific sizes and fracture inclinations was created in the laboratory. The different effects of seepage pressure on the deformation and failure characteristics between a conventional triaxial compression test and a triaxial permeability test were studied using a servo-controlled testing machine. Furthermore, the change in the permeability of single-fractured specimens was explored based on a triaxial permeability test. The results were as follows. Compared with those observed in the conventional triaxial compression test, the peak stress and corresponding axial strain decrease under seepage pressure in the triaxial permeability test, while the deformation modulus increased. With the increase of fracture length, the peak stress of specimen decreases due to the seepage pressure and the specimen showed tensile failure horizontally. The failure mode of the single-fractured specimens was changed by the seepage pressure. A closed relationship was observed between the failure modes and the permeability-stress curves. A shear failure along the crack surface will occur when the permeability abruptly changed later than the peak stress point. The dramatic change in the permeability indicated that the permeability channel was extended or new seepage paths were created. These conclusions can provide a valuable theoretical reference for the numerical simulation of excavation and design in stability analysis of jointed rock masses.
Matching Selection of Donor-Recipient Vessels in Revascularization Surgery Effectively Reduce the Incidence of Postoperative Hyperperfusion Syndrome in Adult Moyamoya Disease: A Retrospective Comparison Study
Authors:   Hu, Zeng Xi , Su Kang , Tian Xiao , Chen Jincao ,   Zhang
Published: July 2020

Introduction: Cerebral hyperperfusion syndrome (CHS) is one of the most serious complications after revascularization surgery in patients with moyamoya disease (MMD). However, there are few effective measures to prevent the occurrence of CHS. Objective: The present study aims to examine the effect of the method about matching selection of donor-recipient vessels during revascularization surgery on the incidence of postoperative CHS in adult MMD patients. Methods: 216 Chinese adult patients with MMD received surgery treatment between January 2018 and December 2019 in our hospital were enrolled in this study. 191 out of 216 patients were included in this study. Matching selection method was defined as follows: (1) blood flow: the direction of blood flow and speed of the donor artery and potential receptor arteries were measured by flow 800 indocyanine green video angiography; (2) vascular diameter: the diameters of the donor artery and potential receptor arteries by a miniature ruler. Only the artery with antegrade flow and with smallest difference in flow speed and diameter with the donor artery will be selected as the receptor artery to perform anastomosis. Matching selection was performed from January 2019. Digital subtraction angiography was performed in all patients for initial MMD diagnosis. Perioperative cerebral perfusion and related clinical symptoms were monitored. Clinical characteristics, contralateral progression, and risk factors were reviewed. The incidence of CHS and the correlation of CHS with baseline characteristics or clinical conditions were analyzed. Results: Of these 191 patients, 82 patients received matching selection of donor-recipient vessels during revascularization surgery and 109 patients without. The postoperative CHS incidence in the matching group was 3.66%, which was much lower than that in the nonmatching group (15.60%). Multivariate analysis did not reveal a significant risk factor between the progression group and the nonprogression group. Correlation analysis revealed only the matching selection method was significantly associated with the reduced postoperative CHS incidence in MMD patients. Conclusions: The matching selection of donor-recipient vessels during revascularization surgery effectively reduces the incidence of postoperative CHS in adult patients with MMD.
Pensamento fractal [trad. de Mariana Dos Santos Faciulli e Nicolau Gayão]
Authors: Gayão Nicolau , Faciulli Mariana Dos Santos , Silva Denise Ferreira da
Published: July 2020

Tradução de Fractal Thinking, de Denise Ferreira da Silva
A Aplicabilidade da Convenção n.º 105 da OIT
Authors: Nagasaki Jéssica , Assis Ana , Figueiredo Eduardo
Published: July 2020

O presente artigo tem como objetivo discutir a aplicabilidade da Convenção nº 105 da Organização Internacional do Trabalho (OIT) em relação ao contingente imigratório de venezuelanos no Brasil. Justifica-se o tema, pois visa identificar se o país cumpre os compromissos assumidos em âmbito internacional (OIT e Mercosul), na erradicação ao trabalho análogo ao escravo e promoção do trabalho decente. A metodologia empregada é a explicativa, vinculada ao procedimento técnico da combinação de propostas investigativas, sendo bibliográfica e análise de documentos internacionais ratificados pelo Brasil, juntamente com notícias reportadas pelos canais de comunicação, órgãos públicos e entidades correlacionadas ao tema. Como resultado, percebemos que os meios fiscalizatórios realizados pelo Brasil são ineficazes diante do número de imigrantes venezuelanos.
Resenha do livro Retórica e Discurso - Fronteiras e interfaces: das origens aos desdobramentos atuais.
Authors: Grácio Rui Alexandre
Published: July 2020

Resenha do livro Retórica e Discurso Fronteiras e interfaces: das origens aos desdobramentos atuais. Homenagem à professora Lineide do Lago Salvador Mosca
Terminologia, cognição e sociedade: análise dos processos de terminologização e de neologia que caracterizam as denominações da área de Educação do Campo
Authors: Demai Fernanda Mello
Published: July 2020

Nossa área-alvo é a Educação do Campo, expressão atribuída aos conceitos referentes ao ensino, à aprendizagem e à Educação nas regiões rurais, em que os principais atores são participantes de Movimentos Sociais do Campo. Discutiremos aspectos da configuração semântico-pragmática e dos processos de terminologização, de neologia e de cognição que caracterizam a área-alvo, com ênfase em subprocessos relacionados a composição sintagmática combinada com isolamentos semânticos metafóricos e/ ou metonímicos e/ ou de especificação de domínio. O corpus é constituído por textos legais, de divulgação, pedagógicos e acadêmicos; sua periodicidade é de 2000 a 2010. Seguimos as Teorias Sociocognitiva e Comunicativa da Terminologia, valorizando aspectos cognitivos e comunicativos dos termos, sua contextualização linguística, discursiva, pragmática, sociocultural e histórica.
The Typewritten Market: Shariʿah-Compliance and Securitisation in the Law of Islamic Finance
Authors: Cattelan Valentino
Published: July 2020

By taking inspiration from Wisława Szymborska’s poetry and Brinkley Messick’s scholarship, this article interprets the law of Islamic finance as evidence of a radical shift in the social anthropology of Islamic law from classical to contemporary times. To this aim it highlights the changes from fiqh in medieval trade (where individual actions were judged according to rules legitimised by their own local context) to the current process of Shariʿah-compliance, arguing that this process belongs to a textual polity where standardised certificates, contracts and securities have replaced actual social relations in the global financial market. In the light of this, the article advances the notion of Typewritten Market to depict the nature of Islamic finance as a socio-economic space embodying a ‘de-materialised Šarīʿah’: that is to say, a meaning of Islamic law whose contemporary time belongs more to legal/financial technology rather than to Muslim human action.
The Projectability Challenge to Moral Naturalism
Authors: Bengson John , Cuneo Terence , Reisner Andrew
Published: July 2020

The Projectability Challenge states that a metaethical view must explain how ordinary agents can, on the basis of moral experience and reflection, accurately and justifiably apply moral concepts to novel situations. In this paper, we argue for two primary claims. First, paradigm nonnaturalism can satisfactorily answer the projectability challenge. Second, it is unclear whether there is a version of moral naturalism that can satisfactorily answer the challenge. The conclusion we draw is that there is an important respect in which nonnaturalism holds an advantage over its most prominent naturalist rivals. The conclusion is interesting if only because it is widely assumed that naturalism has an easier time handling thorny problems in moral epistemology. We argue that there is at least one such problem of which this assumption is not true.
A Conceptualist Turn: The Ontological Status of Created Species in Late Greek Patristic Theology
Authors: Krausmüller Dirk
Published: July 2020

The realist ontology of Maximus the Confessor cannot be considered representative of the Greek theological discourse of his time. Several authors writing in the sixth, seventh and eighth centuries denied the existence of immanent universals in creation. This position was first formulated as a response to the nominalist Trinitarian theology of John Philoponus. As time went on, however, it began to serve a different function. It was now used to emphasise the distinction between God and creation.
Climate Change Litigation: German Family Farmers and Urgenda – Similar Cases, Differing Judgments
Authors: Schomerus Thomas
Published: July 2020

In the Dutch Urgenda and the German Family Farmers’ cases, the claimants sued the state to reduce greenhouse gas emissions by 2020, according to their national programmes. On the Dutch side, the claimants won in three instances up to the Supreme Court, while they lost at the German Administration Court of Berlin. A main factual difference between the two situations is that in the Netherlands, the Dutch government had, to a certain extent, withdrawn from its initial positions on climate policy. The judgments show that climate change litigation is necessary to gain progress towards a greater understanding of state institution roles in addressing the global threat of climate change, culminating in a better fulfilment of climate change goals.
From a Beacon of Hope to a Question Mark: Right to Clean Water and Sanitation across Europe in the Wake of the ECtHR Judgment Hudorovic and Others v. Slovenia
Authors: Pouikli Kleoniki
Published: July 2020

The aim of this paper is to unpack the latest developments on the right to clean water and sanitation through the lens of environmental injustice against Roma ethnic populations. Namely, the Hudorovic and Others v. Slovenia judgment by the ECtHR puts the spotlight on the dynamics of discrimination against Roma communities relating to the access to fundamental environmental goods and services such as adequate sanitation and potable water. More specifically, the main research focus revolves around the question of whether the human-rights protection regime provides for an effective toolbox for the realization of the water- and sanitation-related rights of minorities groups in a country where the right to water is constitutionally recognized. This case fueled a timely debate regarding the right to safe water and proper sanitation across EU, given that the new Drinking Water Directive raises the bar with respect to the obligations on Member States to take measures to ensure that all citizens -and in particular vulnerable and marginalised groups- are connected to the distribution network.
A Comparative Study of Chinese and Western MBA Programs
Authors: Javaid Taha , Söilen Klaus Solberg , Le Thi Bao Quynh
Published: July 2020

In the last two decades, questions have been raised against the relevance of business education all around the globe including the famous MBA program. Despite few shortcomings of western MBA programs, they are considered to be the global benchmark owing to their reputation, quality, research focus etc., whereas most of their Chinese counterparts are criticized heavily for their different weaknesses ranging from obsolescence and incorporating unique Chinese characteristics to blindly following the US model, without devising the right mix. This study compares the Chinese MBA with the Western MBA programs, highlighting the crucial weaknesses prevailing in Chinese MBA programs and then identifying the necessary improvements to bring them at par with their western counterparts. The study also contributes by bringing-forth ‘must have’ and ‘can have’ courses as a part of the MBA curriculum by going through both Western and Chinese MBA curriculums in depth.
A new species of Hemiphyllodactylus Bleeker (Squamata; Gekkonidae) from Peninsular Thailand that converges in morphology and color pattern on Pseudogekko smaragdinus (Taylor) from the Philippines
Authors: GRISMER L. LEE , YUSHCHENKO PLATON V. , PAWANGKHANANT PARINYA , NAIDUANGCHAN MALI , NAZAROV ROMAN A. , ORLOVA VALENTINA F. , SUWANNAPOOM CHATMONGKON , POYARKOV NIKOLAY A.
Published: July 2020

An integrative taxonomic analysis of newly discovered populations of Hemiphyllodactylus from Indochina recovered a new species from Peninsular Thailand and two others from Laos. The new Thai species, Hemiphyllodactylus pardalis sp. nov. described herein, is the sister species to all other species in the newly designated Indochina clade and has a unique spotted contrasting dorsal pattern not seen in any other species of Hemiphyllodactylus. This, along with its elongate and gracile body morphology, renders it remarkably convergent on the Philippine gecko Pseudogekko smaragdinus despite the fact it is deeply nested within Hemiphyllodactylus. The description of this new species underscores the depauperate nature of Hemiphyllodactylus diversity throughout Indochina in general and Thailand in particular compared to neighboring upland areas of Myanmar and Peninsular Malaysia. This especially underscores the need for continued herpetofaunal field surveys in montane areas of western Thailand.
Description of a new species of deep-sea spider crab from the genus Crocydocinus Lee, Richer de Forges & Ng, 2019, from the south-eastern Arabian Sea (Crustacea: Decapoda: Majoidea: Epialtidae)
Authors: PADATE VINAY P. , LEE BEE YAN , CUBELIO SHERINE SONIA
Published: July 2020

A new species of spider crab is described from two male specimens collected from the southeastern Arabian Sea. This species differs from its congeners in the absence of uograstric granule on carapace, the presence of two granules along lateral margin of carapace at branchial region, the presence of granules on P2–P4 dactyli and the constricted distal tip of the male first gonopod.
Association between sleep quality and self-care in adults with heart failure: A systematic review
Authors: Spedale Valentina , Luciani Michela , Attanasio Alessandro , Di Mauro Stefania , Alvaro Rosaria , Vellone Ercole , Ausili Davide
Published: July 2020

Background

Sleep disturbance is one of the most common symptoms among heart failure patients. Sleep disturbance reduces quality of life and leads to higher rates of mortality. It may affect the ability of patients to perform adequate self-care. Although some research has evaluated the association between sleep quality and heart failure self-care, a synthesis of the most recent available evidence is lacking.

Aims

This systematic review aimed to assess the association between sleep quality and self-care in adults with heart failure.

Methods

The Preferred Reporting Items for Systematic Reviews and Meta-Analyses methodology was used. Medline, CINAHL, PsycINFO and SCOPUS were searched. Observational, case-control and cohort studies were considered. The quality of the studies was evaluated with the Joanna Briggs Institute’s Critical Appraisal Tools.

Results

Six articles were included. Association between sleep quality and self-care was reported by three studies. One of these did not find an association between sleep disturbance and heart failure self-care, while the other two studies did. An association between sleep quality and medication adherence was reported by three studies. All three of these studies found associations between these two variables. Studies have measured similar but different constructs. Two studies assessed sleep quality, while four other studies measured excessive daytime sleepiness. Half of the studies examined self-care, while the other half measured medication adherence.

Conclusions

Although the evidence should be strengthened, sleep quality seems to affect self-care in heart failure patients. The mechanism underlying the effect of sleep quality on heart failure self-care remains unclear. Future longitudinal interaction analyses could be useful to clarify this mechanism.