bluuebunny/crossref_metadata_2025_split huggingface dataset:
Endoscopic management of leaks and fistulas after bariatric surgery: a systematic review and meta-analysis
Authors: Rogalski Pawel , Swidnicka-Siergiejko Agnieszka , Wasielica-Berger Justyna , Zienkiewicz Damian , Wieckowska Barbara , Wroblewski Eugeniusz , Baniukiewicz Andrzej , Rogalska-Plonska Magdalena , Siergiejko Grzegorz , Dabrowski Andrzej , Daniluk Jaroslaw 
Published: February 2020

Abstract
Background
Endoscopic techniques have become the first-line therapy in bariatric surgery-related complications such as leaks and fistulas. We performed a systematic review and meta-analysis on the effectiveness of self-expandable stents, clipping, and tissue sealants in closing of post-bariatric surgery leak/fistula.

Methods
A systematic literature search of the Medline/Scopus databases was performed to identify full-text articles published up to February 2019 on the use of self-expandable stents, clipping, or tissue sealants as primary endoscopic strategies used for leak/fistula closure. Meta-analysis of studies reporting stents was performed with the PRISMA guidelines.

Results
Data concerning the efficacy of self-expanding stents in the treatment of leaks/fistulas after bariatric surgery were extracted from 40 studies (493 patients). The overall proportion of successful leak/fistula closure was 92% (95% CI, 90–95%). The overall proportion of stent migration was 23% (95% CI, 19–28%). Seventeen papers (98 patients) reported the use of clipping: the over-the-scope clips (OTSC) system was used in 85 patients with a successful closure rate of 67.1% and a few complications (migration, stenosis, tear). The successful fistula/leak closure using other than OTSC types was achieved in 69.2% of patients. In 10 case series (63 patients), fibrin glue alone was used with a 92.8–100% success rate of fistula closure that usually required repeated sessions at scheduled intervals. The complications of fibrin glue applications were reported in only one study and included pain and fever in 12.5% of patients.

Conclusions
Endoscopic techniques are effective for management of post-bariatric leaks and fistulas in properly selected patients.
Assessing transformation scenarios from pure Norway spruce to mixed uneven-aged forests in mountain areas
Authors: Hilmers Torben , Biber Peter , Knoke Thomas , Pretzsch Hans 
Published: February 2020

AbstractMixed mountain forests, primarily made up of Norway spruce (Picea abies(L.) Karst.), silver fir (Abies albaMill.) and European beech (Fagus sylvaticaL.), cover about 10 × 106 ha of submontane–subalpine altitudes in Europe. They provide invaluable ecosystem services, e.g. protection against avalanches, landslides or rockfall. However, pure Norway spruce stands have, since mediaeval times, been heavily promoted as productive stand types for salt works at sites naturally supporting mixed mountain forests. Damage to these secondary pure spruce stands has been steadily increasing in recent decades. Furthermore, due to their previous limitation due to low temperatures and a short growing season, forest ecosystems in higher elevations are expected to be strongly affected by climate warming. To address these problems, alternative management concepts are being intensively discussed. A possible option to improve the stability and resilience of the stand is the transformation from pure Norway spruce stands into site-appropriate, sustainable and stable mixed mountain forests. In this study, we have tested seven different transformation scenarios (e.g. slit, shelterwood and gap-coupes, strip clear-cutting, do-nothing) and their impact on five evaluation criteria (forest growth, economics, carbon sequestration, (stand) stability and biodiversity). As there are hardly any practical examples for some of the transformation scenarios available, we have used the forest growth simulator SILVA to assess whether the tested transformation scenarios differ in transformation success and to observe trade-offs between the criteria of evaluation. Of the investigated scenarios, we consider the ones with gap or slit-coupes with the most beneficial overall utility values for the portfolio of the five evaluation criteria. However, we showed with our results that it is possible, by means of several trajectories, to return destabilised forests to sustainable and stable systems. We showed that a transformation is realistic, even if sophisticated silvicultural concepts are not strictly pursued.
The global economic system and access and allocation in earth system governance
Authors: Gonenc Defne , Piselli Dario , Sun Yixian 
Published: February 2020

AbstractEnsuring sustainability of earth systems is intrinsically dependent on the incorporation of equity and fairness in the regimes and institutions that govern the global economy. Accordingly, to design effective and just earth system governance (ESG), it is crucial to understand how the global economic system affects access to and allocation of environmental benefits and burdens among people and countries around the world and what are the relevant causal mechanisms. By focusing on trade and investment as two predominant elements of today’s global economic system, this paper reviews the literature developed within the ESG project in 2008–2017 to explore the relationships between the global economic system and access to and allocation of environmental benefits and burdens. Our review shows that ESG scholarship has begun to highlight the dynamics of unfair access and allocation deriving from the global economic system, ranging from the direct impacts of trade and investment on environmental inequality and socioeconomic opportunities to the indirect equity implications of certification schemes, environmental decision-making processes and environmentally motivated restrictions in international trade and investment regimes. However, it also notes that critical questions about the identity of vulnerable groups and the potential pathways for more equitable sharing of benefits and burdens remain understudied by ESG scholars. Hence, we call for more critical analysis of the role of the global economic system in perpetuating unsustainable patterns of access and allocation in ESG, as well as research about the local impacts of the global economic system on environmental access and allocation.
A review on water quality and dairy cattle health: a special emphasis on high-altitude region
Authors: Giri Arup , Bharti Vijay K. , Kalia Sahil , Arora Achin , Balaje S. S. , Chaurasia O. P. 
Published: February 2020

AbstractWater is the wonder of nature which is an essential source of nutrient for all forms of life. It helps in proper digestion, energy metabolism, transport of nutrients and metabolites, cellular functions, and excretion of waste materials from our body and animals. Furthermore, water plays a vital role in body thermoregulatory and electrolyte health, and performance the fluidity and cushioning environment for the developing fetus in the human and animals. The quality of water determines the health and productivity of milk and their quality, as it causes bioaccumulation of water solutes in the milk and body tissues. Therefore, its quality has to be good for optimum health, and performance of dairy cattle. The high-altitude environments have limited surface and groundwater resources and more dependent on snow precipitations, very deep bore well groundwater, and mountain river. Recently, quality of high-altitude water resources has become questionable due to more environmental pollution, climate change, and high anthropogenic activities at high altitude. Therefore, there is a continuous requirement to monitor water quality, dairy product quality, and cattle health for prevention and control of waterborne diseases. This review reveals the water quality and the probable effects on the health performance of dairy cattle with a particular emphasis on high-altitude regions. From this review, it can be concluded that global warming and an increase in tourists at high-altitude regions have caused deterioration of water quality, which may affect the health, reproduction, and production of quality dairy products. This may lead to bioaccumulation of some toxic molecules and metals into higher food chain and affecting public health.
Chemical constituents, antioxidant and cytotoxicity properties of Leonotis leonurus used in the folklore management of neurological disorders in the Eastern Cape, South Africa
Authors: Tonisi Sipho , Okaiyeto Kunle , Hoppe Heinrich , Mabinya Leonard V. , Nwodo Uchechukwu U. , Okoh Anthony I. 
Published: February 2020

AbstractIn the present study, we evaluated the phytochemical compounds and antioxidant properties of chloroform, ethanol and acetone extracts for leaves and flowers ofLeonutusleonurus(L.leonurus) alongside with their cytotoxic effects on human cervical carcinoma (HeLa) cell lines. The phytochemical compounds present in the leaves and flowers ofL.leonurusincluded; phenolics, flavonoids and alkaloids. Their radicals scavenging effects against 2, 2-diphenyl-1-picrylhydrazyl [DPPH] 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulphonate) [ABTS·+], hydrogen peroxide, nitric oxide as well as metal chelating activities showed dose-dependent activities. Gas chromatography-mass spectrometry (GCMS) analyses revealed the presence of important bioactive compounds, which are associated with antioxidant; and the extracts exhibited toxicity effect against HeLa cells. The findings from this study divulge extracts ofL.leonurusas prospective sources of antioxidant and anticancer agents; and hence, further study on their neuroprotective potentials becomes imperative.
Personality and positionality-evidence from survey experiments with alternative goods
Authors: Akay Alpaslan , Karabulut Gökhan 
Published: February 2020

AbstractThis paper employs survey experiments to examine the relationship between personality characteristics and positional concerns across a wide range of “goods”, e.g., income and market value of a car, and “bads”, e.g., infant mortality and poverty rates. Personality traits are measured using the five-factor model (Big-5), the locus of control, and reciprocity. We demonstrate that there are significant relationships between personality types and positional concerns, which differ both by the type of personality and by the nature of a good. The results are highly consistent with the predictions presented in the field of personality psychology. That is, while agreeableness is negatively associated, conscientiousness, neuroticism, and external locus of control are positively associated with positional concerns for most goods. Importantly, there is also a substantial heterogeneity in the mean degree of positional concerns across the low and high values of most personality characteristics and goods.
Study of Semi-Infinite Crack in a Sandwiched Orthotropic Strip
Authors: Singh Anuwedita , Das S. , Craciun E-M. 
Published: February 2020

ABSTRACTThe problem of semi-infinite crack situated in an orthotropic strip sandwiched between two identical half planes has been considered. The considered boundary value problem has been solved to convert it into the standard Wiener-Hopf equation by using Fourier transform technique, which has been solved to obtain analytical expressions for stress intensity factor and crack opening displacement. The variations of stress intensity factors and crack opening displacement are displayed graphically for different pair of orthortropic materials and for various depth of the strip of the composite media.
The grapes are sour: An envier's attributional perspective of coworker impression management
Authors: Azeem Sundas , Zafar Mueen Aizaz , Khan Abdul Karim 
Published: February 2020

AbstractArguing that it would serve scholars and practitioners better to view impression management (IM) from a coworker's perspective than from that of an actor's outcomes, this study demonstrates that IM by a coworker triggers a self-serving attributional process. The authors reason that denial of another's relative advantage leads the observing coworker to attribute this behavior to the actor's incompetence, consequently leading to counterproductive behavior toward them in efforts to reduce their own relative disadvantage. Data were collected at T1 and T2 from 142 service sector employees. Our results were consistent with our hypotheses. However, the moderated-mediation models for conditional effects of hostile attributional style were not supported. This study offers an integrated view of previously isolated domains of IM and attribution, suggesting future literature considers a similar perspective for more meaningful investigations.
Pretreatment of Terrestrial Macrofossils
Authors: Norris Margaret W , Turnbull Jocelyn C , Howarth Jamie D , Vandergoes Marcus J 
Published: February 2020

ABSTRACTAcid-alkali-acid (AAA) pretreatment is widely used to clean terrestrial plant macrofossil samples for radiocarbon (14C) dating. There is wide variation amongst laboratories in the AAA method details and less rigorous AAA pretreatment is often used on fragile or small samples. Yet there is little evidence as to the efficacy of the different methods and whether the use of less rigorous methods is justified. We investigated four variations of AAA pretreatment: acid only (no alkali wash); room temperature AAA; “standard” AAA at 85°C; and “aggressive” AAA at 85°C with alkali washes repeated until no discoloration was detected. We tested six different terrestrial macrofossils from four different locations and ranging in age from mid-Holocene to the Last Glacial Maximum. Our results demonstrate that while acid only is not always sufficient to remove young material, there is no difference in 14C age of samples pretreated by any of the AAA variants. We also observed mass loss of 85–90% in the standard and aggressive AAA pretreatments, and much more modest mass loss in the room temperature AAA pretreatment. Therefore, we conclude that room temperature AAA pretreatment is optimal to remove contaminating material from fragile terrestrial macrofossils while retaining the majority of the authentic sample material.
A preferential attachment process approaching the Rado graph
Authors: Elwes Richard 
Published: February 2020

AbstractWe consider a simple preferential attachment graph process, which begins with a finite graph and in which a new (t + 1)st vertex is added at each subsequent time step t that is connected to each previous vertex u ≤ t with probability du(t)/t, where du(t) is the degree of u at time t. We analyse the graph obtained as the infinite limit of this process, and we show that, as long as the initial finite graph is neither edgeless nor complete, with probability 1 the outcome will be a copy of the Rado graph augmented with a finite number of either isolated or universal vertices.
Delta- and Daugavet points in Banach spaces
Authors: Abrahamsen T. A. , Haller R. , Lima V. , Pirk K. 
Published: February 2020

AbstractA Δ-pointxof a Banach space is a norm-one element that is arbitrarily close to convex combinations of elements in the unit ball that are almost at distance 2 fromx. If, in addition, every point in the unit ball is arbitrarily close to such convex combinations,xis a Daugavet point. A Banach spaceXhas the Daugavet property if and only if every norm-one element is a Daugavet point. We show that Δ- and Daugavet points are the same inL1-spaces, inL1-preduals, as well as in a big class of Müntz spaces. We also provide an example of a Banach space where all points on the unit sphere are Δ-points, but none of them are Daugavet points. We also study the property that the unit ball is the closed convex hull of its Δ-points. This gives rise to a new diameter-two property that we call the convex diametral diameter-two property. We show that allC(K) spaces,Kinfinite compact Hausdorff, as well as all Müntz spaces have this property. Moreover, we show that this property is stable under absolute sums.
Morphological and molecular taxonomy of Timea (Porifera: Timeidae) from the Gulf of Mexico with the description of a new species and re-description of T. hechteli
Authors: Cruz-Barraza José Antonio , Vega Cristina , Rützler Klaus , Salas-Castañeda Manuel 
Published: February 2020

AbstractWe present the description of a new species of genus Timea and the re-description of T. hechteli from cryptic habitats in the Gulf of Mexico. Timea alcoladoi sp. nov. is an encrusting, pale orange sponge, with megascleres ranging from styles to subtylostyles (185–990 μm long) and a single category of microscleres, spherostrongilaster characterized by a prominent rounded centre (5–15 μm in diameter). Timea hechteli was established by Lehnert & Heimler, based on the description of a very small specimen, previously recorded as Halicometes stellata by Little, and transferred to the genus Timea by Hechtel. However, because the name ‘stellata’ was preoccupied by the type species, T. stellata, the species was renamed T. hechteli, to honour George Hechtel. After the revision of Little's material and new material, we present the re-description of T. hechteli. For both species, partial sequences of COI mtDNA and ITS1-5.8S-ITS2 rDNA region were obtained in order to complement our morphological taxonomy and establish their molecular systematic position among tethyids. Tree topologies for both loci were congruent by grouping together our species as a sister group of the main Tethyida clade, which is according to the current systematics of the group. The COI fragment showed Timea as polyphyletic due to two sequences of Timea (from GenBank) that were clustered with other sponge groups. The species described here are the first record of the genus Timea from the Mexican coast of the Gulf of Mexico. A taxonomic key for West Atlantic Timea species is also presented.
Maternal caesarean section infection (MACSI) in Sierra Leone: a case–control study
Authors: Di Gennaro F. , Marotta C. , Pisani L. , Veronese N. , Pisani V. , Lippolis V. , Pellizer G. , Pizzol D. , Tognon F. , Bavaro D. F. , Oliva F. , Ponte S. , Nanka Bruce P. , Monno L. , Saracino A. , Koroma M. M. , Putoto G. 
Published: February 2020

Abstract
Sierra Leone is the country with highest maternal mortality and infections are the underlying cause in 11% of maternal deaths, but the real burden remains unknown. This study aims to determine the incidence and risk factors of surgical site infection (SSI) post-caesarean section (CS) in women admitted to Princess Christian Maternity Hospital (PCMH) in Freetown, Sierra Leone. A prospective case–control (1:3 ratio) study was implemented from 1 May 2018 to 30 April 2019 and 11 women presenting with suspected or confirmed infection post-CS were screened for inclusion as a case. For each case, three patients undergoing CS on the same day and admitted to the same ward, but not presenting with SSI, were selected as controls. The post-CS infection rate was 10.9%. Two hundred and fifty-four clinically confirmed cases were enrolled and matched with 762 control patients. By multivariable analysis, the risk factors for SSI were: being single (odds ratio (OR) 1.48, 95% confidence interval (CI) 1.36–1.66), low education level (OR 1.68, 95% CI 1.55–1.84), previous CS (OR 1.27, 95% CI 1.10–1.52), presenting with premature membranes rupture (OR 1.49, 95% CI 1.18–1.88), a long decision–incision time (OR 2.08, 95% CI 1.74–2.24) and a high missing post-CS antibiotic doses rate (OR 2.52, 95% CI 2.10–2.85).
Postglacial evolution of marine and lacustrine water bodies in Bunger Hills
Authors: Berg Sonja , Melles Martin , Gore Damian B. , Verkulich Sergei , Pushina Zina V. 
Published: February 2020

AbstractUnglaciated coastal areas in East Antarctica provide records of past ice sheet and glacier fluctuations and subsequent environmental conditions. In this paper we review lithological, geochemical, diatom and radiocarbon data from sediment records from inland and epishelf lakes in Bunger Hills, East Antarctica. While some hilltops were unglaciated during the Last Glacial Maximum, till deposits in lake basins indicate infilling by glacier ice prior to the Holocene. Proglacial sedimentation occurred in lakes during the early Holocene. Around 9.6 kabp, deposition of marine sapropel started under relatively warm climate conditions. Inland lakes were affected by high clastic input from meltwater runoff untilc.7.9 kabp, when deposition became highly organic and biogenic proxies indicate a period of cooler conditions. Epishelf lakes experienced a decrease in water exchange with the ocean and increased freshwater input around 7.7 ± 0.2 kabpand after 2.2 kabp. This probably resulted from grounding line advances of the bounding glaciers, which could be either controlled by relative sea level (RSL) lowering and/or climate-driven glacier dynamics. The absence of marine sediments in the postglacial record of Algae Lake indicates that Holocene RSL probably reached a maximum at or below 10 m above present sea level.
Application of nutrient essentiality criteria to dietary carbohydrates
Authors: Tondt Justin , Yancy William S. , Westman Eric C. 
Published: February 2020

AbstractThe purpose of the present review is to describe how human physiology at very low carbohydrate intakes relates to the criteria for nutritional essentiality. Although we did not limit ourselves to one particular type or function of carbohydrates, we did primarily focus on glucose utilisation as that function was used to determine the recommended daily allowance. In the general population, the human body is able to endogenously synthesise carbohydrates, and does not show signs of deficiency in the absence of dietary carbohydrates. However, in certain genetic defects, such as glycogen storage disease type I, absence of dietary carbohydrates causes abnormalities that are resolved with dietary supplementation of carbohydrates. Therefore, dietary carbohydrates may be defined as conditionally essential nutrients because they are nutrients that are not required in the diet for the general population but are required for specific subpopulations. Ketosis may be considered a physiological normal state due to its occurrence in infants in addition to at very low carbohydrate intakes. Although sources of dietary carbohydrates can provide beneficial micronutrients, no signs of micronutrient deficiencies have been reported in clinical trials of low-carbohydrate ketogenic diets. Nonetheless, more research is needed on how micronutrient requirements can change depending on the dietary and metabolic context. More research is also needed on the role of dietary fibre during a low-carbohydrate ketogenic diet as the beneficial effects of dietary fibre were determined on a standard diet and several studies have shown beneficial effects of decreasing non-digestible carbohydrates.