bluuebunny/crossref_metadata_2025_split huggingface dataset:
Management outcome and its associated factors among surgically treated intestinal obstruction cases in Dilla University Referral Hospital, Southern Ethiopia. A cross-sectional study
Authors: Girma Hailemichael , Negesso Miesso , Tadese Jarso , Hussen Robel , Aweke Zemedu 
Published: May 2021

ABSTRACT

Background:
Intestinal obstruction is the most common surgical emergency worldwide. Intestinal obstruction continues to remain a challenge to surgeons despite advances in the field of medicine, surgical technique and accounts for high mortality ranges from 3% to 30% all over the world.

Objective:
The study aimed to assess management outcome and its associated factors among surgically treated intestinal obstruction cases, at Dilla University Referral Hospital 2020 GC.

Method:
Hospital-based cross-sectional study was conducted on all cases surgically managed for intestinal obstruction, at Dilla University Referral Hospital from November, 1/2016 up to November, 30/2019. Data were collected using a structured questionnaire by trained data collectors. The collected data was checked for its completeness and entered into epidata version 3.1 then exported to SPSS version 26 for cleaning and analysis. The odds ratio along with 95%CI was estimated to measure the strength of the association. Statistical significance was declared at p-value < 0.05.

Result:
258 cases were included in this study. From these, 223 (86.4%) cases have favorable surgical management outcomes of intestinal obstruction. Of 35 cases with unfavorable outcome, the most common postoperative complication occurred was surgical site Infection followed by post-operative pneumonia. A total of 4.7% of postoperative deaths were documented as unfavorable surgical management outcomes. Fever, length of illness, comorbidity, intraoperative bowel condition, bowel resection was done and length of hospital stay after operation were independent significantly associated factors with the surgical management outcome of intestinal obstruction.

Conclusion:
The unfavorable management outcome of patients with IO who treated surgically at the study area was high. Assessing co-morbidity, fluid resuscitation, administration of prophylactic antibiotics before operation and properly applying infection prevention protocol are some of the activities that need emphasis in intestinal obstruction management.

Highlights
Topological and geometric hyperbolicity criteria for polynomial automorphisms of
Authors: BEDFORD ERIC , DUJARDIN ROMAIN 
Published: May 2021

AbstractWe prove that uniform hyperbolicity is invariant under topological conjugacy for dissipative polynomial automorphisms of

$\mathbb {C}^2$
. Along the way we also show that a sufficient condition for hyperbolicity is that local stable and unstable manifolds of saddle points have uniform geometry.
The peri-urban leopards of Kathmandu: assessing determinants of presence and predation on domestic animals
Authors: Bista Ashish , Chanchani Pranav , Subedi Naresh , Bajracharya Siddhartha B. 
Published: May 2021

AbstractThe conservation of large carnivores in human-dominated landscapes needs to be reconciled with the safety of humans and domestic animals. This is especially true for the leopard Panthera pardus, which occurs extensively in agricultural landscapes and remnant forest tracts embedded within peri-urban areas such as Kathmandu district in Nepal. We carried out interviews in 321 households in this district to determine the extent of leopard habitat use and predation on domestic animals (dogs and goats) during October 2015–April 2016. We used multi-state occupancy models, and estimated probabilities of leopard habitat use (Ψ1) and predation on domestic animals (Ψ2) as a function of covariates, while accounting for imperfect detection. Our findings indicate that the rapidly urbanizing outskirts of Kathmandu city are used extensively by leopards. The estimated probability of fine-scale habitat use in 2 km2 sample units was 0.96 ± SE 0.05 and the probability of predation on domestic animals was 0.76 ± SE 0.15. Leopard attacks occurred in areas with high vegetation cover and abundant goats. Addressing the problem of leopard attacks on domestic animals will require developing a comprehensive mitigation plan that includes educational activities to raise awareness, measures to address grievances of affected local communities, interventions to prevent attacks on livestock, compensation programmes, and rapid response teams to ensure human and animal welfare in conflict-prone areas. Land-use planning in these peri-urban landscapes needs to facilitate the safe sharing of space between people and leopards.
The Martyrdom of Konon (BHG 2077): the construction of a realm of memory
Authors: Pilhofer Philipp 
Published: May 2021

AbstractThis article focuses on a local martyr from a village close to Isaura in the Taurus mountains: Konon of Bidana. The Martyrdom of Konon is a late antique Greek hagiographical text centred on this rural saint, and, in particular, its inter-connection of space and time is analysed. Through the employment of this literary strategy, the region around Bidana is used as a backdrop to a realm of memory. The epigraphical and archaeological remains show that the regional population respected Konon as their local patron.
IN PRAISE OF EVIL THOUGHTS
Authors: Koppelman Andrew 
Published: May 2021

AbstractFreedom of thought means freedom from social tyranny, the capacity to think for oneself, to encounter even shocking ideas without shrinking away from them. That aspiration is a core concern of the free speech tradition. It is not specifically concerned with law, but it explains some familiar aspects of the First Amendment law we actually have—aspects that the most prevalent theories of free speech fail to capture. It explains the prohibition of compelled speech, and can clarify the perennial puzzle of why freedom of speech extends to art and literature. It also tells us something about the limits of legal regulation, and about the ethical obligations of private actors.
THE NONRANDOM WALK OF KNOWLEDGE
Authors: Bambauer Jane R. , Masconale Saura , Sepe Simone M. 
Published: May 2021

AbstractA person’s epistemic goals sometimes clash with pragmatic ones. At times, rational agents will degrade the quality of their epistemic process in order to satisfy a goal that is knowledge-independent (for example, to gain status or at least keep the peace with friends.) This is particularly so when the epistemic quest concerns an abstract political or economic theory, where evidence is likely to be softer and open to interpretation. Before wide-scale adoption of the Internet, people sought out or stumbled upon evidence related to a proposition in a more random way. And it was difficult to aggregate the evidence of friends and other similar people to the exclusion of others, even if one had wanted to. Today, by contrast, the searchable Internet allows people to simultaneously pursue social and epistemic goals.This essay shows that the selection effect caused by a merging of social and epistemic activities will cause both polarization in beliefs and devaluation of expert testimony. This will occur even if agents are rational Bayesians and have moderate credences before talking to their peers. What appears to be rampant dogmatism could be just as well explained by the nonrandom walk in evidence-gathering. This explanation better matches the empirical evidence on how people behave on social media platforms. It also helps clarify why media outlets (not just the Internet platforms) might have their own pragmatic reasons to compromise their epistemic goals in today’s competitive and polarized information market. Yet, it also makes policy intervention much more difficult, since we are unlikely to neatly separate individuals’ epistemic goals from their social ones.
Diaphragmatic eventration as a first sign of Scimitar syndrome
Authors: Vieira Martins Miguel , Martins Duarte S , Oliveira Graça 
Published: May 2021

AbstractDiaphragmatic eventration is an anomaly of the diaphragm. In Scimitar syndrome, a curved-shaped anomalous pulmonary venous drainage is seen. Association between these conditions is rare. We present a newborn with diaphragmatic eventration, whose diagnosis of Scimitar syndrome was made after surgical repair. Scimitar syndrome is a congenital disorder often associated with other heart and lungs anomalies. Diagnosis can be fortuitous but with important prognostic features.
No More Strategical Neutrality on Technological Neutrality: Technological Neutrality as a Bridge Between the Analogue Trading Regime and Digital Trade
Authors: Kwak Dongchul 
Published: May 2021

AbstractThe World Trade Organization (WTO), a unique multilateral trading regime, has failed to establish its relevance to the digital nature of trade. This article revisits the ‘principle of technological neutrality’ to make the cross-border supply of services by electronic means subject to the current rules-based trading regime. I argue that the principle of technological neutrality could help resolve a number of thorny legal issues: confirming the applicability of the General Agreement on Trade in Services (GATS) rules to the delivery of services by electronic means; providing a guideline to determine the likeness of services in the era of digital trade; and backing up an evolutionary approach to interpreting the GATS schedules of commitments. However, the WTO adjudicatory bodies have been reluctant to rely on the principle of technological neutrality, which is referred to as strategic neutrality in this article. This article urges the WTO adjudicatory bodies to abandon their strategically neutral position on technological neutrality immediately. It also explores ways to incorporate the principle of technological neutrality into the world trading system at the bilateral, plurilateral, and multilateral levels.
End-of-life decision making in critical illness: Perspectives of Asian parents
Authors: Fu Kristy Xinghan , Chiong Yee Keow , Ngiam Nicola 
Published: May 2021

AbstractObjectiveTo explore parents’ perspectives regarding end-of-life (EOL) decisions, factors and possible barriers that influence the EOL decision making process, and to understand parental preferences for communication about EOL care in an Asian population.MethodA prospective questionnaire cohort study conducted in a university-based tertiary care hospital. 30 parents of children who had been admitted to general pediatric wards for acute ailments and/or were being followed up in general pediatric outpatient clinics after inpatient admissions or emergency department visits completed 30 interviewer-administered questionnaires. With the first 10 completed questionnaires, we sought feedback on the design of the four case vignettes and related questions. Responses to specific questions related to each case vignette were rated on a Likert scale.ResultsThe majority of parents were able to comprehend and identify with the issues in the case vignettes, which allowed them to respond appropriately. Parents tended to avoid active withdrawal or withholding of life-sustaining treatment. The top three priorities for parents making EOL decisions for their children were: the chance of improvement, the presence of pain or discomfort, and information provided by healthcare staff. Parents reported that they would prefer to know immediately if their child is at risk of dying; they also preferred to get as much information as possible from the healthcare team and thought that meeting with the healthcare team before making EOL decisions was pivotal.Significance of resultsParents place highest priorities on their child's likelihood of improvement, perception of their child's pain, and information provided by healthcare professionals in making EOL decisions.
Urban Forests as Main Regulator of the Evaporative Cooling Effect in Cities
Authors: Paschalis Athanasios , Chakraborty TC , Fatichi Simone , Meili Naika , Manoli Gabriele 
Published: May 2021

AbstractHigher temperatures in urban areas expose a large fraction of the human population to potentially dangerous heat stress. Green spaces are promoted worldwide as local and city‐scale cooling strategies but the amount, type, and functioning of vegetation in cities lack quantification and their interaction with urban climate in different settings remains a matter of debate. Here we use state‐of‐the‐art remote sensing data from 145 city clusters to disentangle the drivers of surface urban heat islands (SUHI) intensity and quantify urban‐rural differences in vegetation cover, species composition, and evaporative cooling. We show that nighttime SUHIs are affected mostly by abiotic factors, while daytime SUHIs are highly correlated with vegetation characteristics and the wetness of the background climate. Magnitude and seasonality of daytime SUHIs are controlled by urban‐rural differences in plant transpiration and leaf area, which explain the dependence of SUHIs on wetness conditions. Leaf area differences are caused primarily by changes in vegetation type and a loss of in‐city forested areas, highlighting the importance of maintaining “natural reserves” as a sustainable heat mitigation policy.
Rapid Reduction of pH and CaCO3 Saturation State in the Tsugaru Strait by the Intensified Tsugaru Warm Current During 2012–2019
Authors: Wakita M. , Sasaki K. , Nagano A. , Abe H. , Tanaka T. , Nagano K. , Sugie K. , Kaneko H. , Kimoto K. , Okunishi T. , Takada M. , Yoshino J. , Watanabe S. 
Published: May 2021

AbstractTo examine the ocean acidification of coastal water as the result of the oceanic uptake of anthropogenic atmospheric CO2, we initiated acidification monitoring in the eastern part of the Tsugaru Strait, through which the Tsugaru Warm Current flows eastward from the Sea of Japan to the North Pacific. Annual mean pH and CaCO3 saturation state during 2012–2019 decreased considerably throughout all depths at rates of 0.0030–0.0051 and 0.017–0.036 years−1, respectively. These rates of decrease are faster than those caused by increasing atmospheric CO2 and faster than those observed during previous research. These fast rates are attributed to an enhanced increase in dissolved inorganic carbon concurrently with increases in salinity and density caused by elevated mixing of the upper and deeper waters from the Sea of Japan at the western part of the strait. The elevated mixing is attributable to the strengthening of the Tsugaru Warm Current.
Fast and Localized Temperature Measurements During Simulated Earthquakes in Carbonate Rocks
Authors: Aretusini Stefano , Núñez‐Cascajero Arántzazu , Spagnuolo Elena , Tapetado Alberto , Vázquez Carmen , Di Toro Giulio 
Published: May 2021

AbstractThe understanding of earthquake physics is hindered by the poor knowledge of fault strength and temperature evolution during seismic slip. Experiments reproducing seismic velocity (∼1 m/s) allow us to measure both the evolution of fault strength and the associated temperature increase due to frictional heating. However, temperature measurements were performed with techniques having insufficient spatial and temporal resolution. Here we conduct high velocity friction experiments on Carrara marble rock samples sheared at 20 MPa normal stress, velocity of 0.3 and 6 m/s, and 20 m of total displacement. We measured the temperature evolution of the fault surface at the acquisition rate of 1 kHz and over a spatial resolution of ∼40 µm with an optical fiber conveying the infrared radiation to a two‐color pyrometer. Temperatures up to 1,250°C and low coseismic fault shear strength are compatible with the activation of grain size dependent viscous creep.
Underestimated MJO Variability in CMIP6 Models
Authors: Le Phong V. V. , Guilloteau Clément , Mamalakis Antonios , Foufoula‐Georgiou Efi 
Published: May 2021

AbstractThe Madden‐Julian Oscillation (MJO) is the leading mode of intraseasonal climate variability, having profound impacts on a wide range of weather and climate phenomena. Here, we use a wavelet‐based spectral Principal Component Analysis (wsPCA) to evaluate the skill of 20 state‐of‐the‐art CMIP6 models in capturing the magnitude and dynamics of the MJO. By construction, wsPCA has the ability to focus on desired frequencies and capture each propagative physical mode with one principal component (PC). We show that the MJO contribution to the total intraseasonal climate variability is substantially underestimated in most CMIP6 models. The joint distribution of the modulus and angular frequency of the wavelet PC series associated with MJO is used to rank models relatively to the observations through the Wasserstein distance. Using Hovmöller phase‐longitude diagrams, we also show that precipitation variability associated with MJO is underestimated in most CMIP6 models for the Amazonia, Southwest Africa, and Maritime Continent.
Preliminary Analysis of Source Physics Experiment Explosion‐Triggered Microseismicity Using the Back‐Projection Method
Authors: Ichinose G. A. , Ford S. R. , Kroll K. , Dodge D. , Pyle M. , Pitarka A. , Walter W. R. 
Published: May 2021

AbstractA series of four chemical explosions were detonated in a deep borehole within the Yucca Flat Dry Alluvium Geology (DAG) at the Nevada National Security Site between 2018 and 2019. The two larger chemical explosions of 50 tons (DAG‐2) and 10 tons (DAG‐4) TNT equivalent yield triggered energetic aftershock sequences numbering 1392 and 347 microearthquakes, respectively, within the first 10 days. No significant aftershock activity was observed for the two smaller 1‐ton explosions (DAG‐1 and DAG‐3). We used a back‐projection method based on travel‐time migration and stacking of signal‐to‐noise ratio traces to detect, associate and locate aftershocks from a subset of 22‐geophones within a larger 2 2 km seismic array surrounding the borehole. The aftershocks located within 300 m of the borehole and the depths were above the working points of 300 and 50 m depths of DAG‐2 and DAG‐4, respectively, ruling out triggering slip on geologic faults or disturbances beneath neighboring collapse craters. DAG‐2 and DAG‐4 aftershocks decayed at similar rates, with power‐law exponents of p = 1.48 and p = 1.49, respectively. These decay rates are comparable to aftershocks sequences triggered by earthquakes and historical nuclear explosions at Yucca Flat. A smooth power‐law aftershock decay within the first 10 days suggests a triggering mechanism from explosion generated stress relaxation due to the diffusion of high gas pressures in the cavity and radial fractures. A more random and episodic aftershock rate would be expected due to cavity collapse or falling rubble in chimney formation.
Diffusivity and Solubility of H2 in Ice Ih: Implications for the Behavior of H2 in Polar Ice
Authors: Patterson John D. , Saltzman Eric S. 
Published: May 2021

AbstractReconstructions of paleoatmospheric H2 using polar firn air and ice cores would lead to a better understanding of the H2 biogeochemical cycle and how it is influenced by climate change and human activity. In this study, the permeability, diffusivity, and solubility of H2 are determined experimentally in ice Ih at temperatures relevant to polar ice sheets (199–253 K). The experimental data are used in conjunction with simplified diffusion models to assess the implications for: (a) Diffusion of H2 from pressurized closed bubbles to open pores in polar firn, (b) diffusive smoothing of H2 gradients in the ice sheet, and (c) post‐coring diffusive losses of H2 from ice core samples. The results indicate that diffusive equilibrium between open and closed pores is likely achieved in the firn lock‐in zone. Diffusive smoothing of atmospheric variations is significant and should be accounted for in atmospheric reconstructions on millennial time scales. Diffusive losses from a bubbly ice sample are sufficiently slow that samples may be meaningfully analyzed for H2 after storage on the order of a year. These results suggest that the mobility of H2 in ice should not preclude the reconstruction of paleoatmospheric H2 from firn air and ice cores.
Observations of Lightning NOx Production From Tropospheric Monitoring Instrument Case Studies Over the United States
Authors: Allen Dale , Pickering Kenneth E. , Bucsela Eric , Van Geffen Jos , Lapierre Jeff , Koshak William , Eskes Henk 
Published: May 2021

AbstractNitrogen oxides produced by lightning (LNOx) play an important role in determining mid‐ and upper‐tropospheric concentrations of the hydroxyl radical (OH), methane (CH4), and ozone (O3). The moles of NOx produced per flash was examined using nitrogen dioxide (NO2) columns and cloud properties from the Tropospheric Monitoring Instrument (TROPOMI) and flash counts from the Geostationary Lightning Mapper (GLM) aboard the Geostationary Operational Environmental Satellite‐16 (GOES‐16) and Earth Networks Total Lightning Network (ENTLN) for 29 convective systems over the United States that occurred during 2018 and 2019. For each of the case studies, the LNOx production efficiency (PE) was estimated using TROPOMI pixels over deep convection. First, the NOx columns associated with the TROPOMI NO2 columns were estimated using a specially derived air mass factor (AMF). The tropospheric column due to recent lightning was then determined by subtracting from the median NOx column a background representative of the NOx column due to sources other than recent lightning. Then, the PE was calculated by multiplying the LNOx column by the storm area and dividing by the number of flashes contributing to the column. For a three‐hour chemical lifetime, the mean PE was found to be 175 ± 100 mol per flash for optical flashes from GLM and 120 ± 65 mol per flash for radio‐wave‐detected flashes from ENTLN. The uncertainty associated with these values is mostly due to uncertainties in tropospheric background, AMF, and detection efficiency. GLM PE for individual systems was found to be positively correlated with optical energy.
US COVID‐19 Shutdown Demonstrates Importance of Background NO2 in Inferring NOx Emissions From Satellite NO2 Observations
Authors: Qu Zhen , Jacob Daniel J. , Silvern Rachel F. , Shah Viral , Campbell Patrick C. , Valin Lukas C. , Murray Lee T. 
Published: May 2021

AbstractSatellite nitrogen dioxide (NO2) measurements are used extensively to infer nitrogen oxide emissions and their trends, but interpretation can be complicated by background contributions to the NO2 column sensed from space. We use the step decrease of US anthropogenic emissions from the COVID‐19 shutdown to compare the responses of NO2 concentrations observed at surface network sites and from satellites (Ozone Monitoring Instrument [OMI], Tropospheric Ozone Monitoring Instrument [TROPOMI]). After correcting for differences in meteorology, surface NO2 measurements for 2020 show decreases of 20% in March–April and 10% in May–August compared to 2019. The satellites show much weaker responses in March–June and no decrease in July–August, consistent with a large background contribution to the NO2 column. Inspection of the long‐term OMI trend over remote US regions shows a rising summertime NO2 background from 2010 to 2019 potentially attributable to wildfires.