bluuebunny/crossref_metadata_2025_split huggingface dataset:
Community mobilisation approaches to preventing and reducing adolescent multiple risk behaviour: a realist review protocol
Authors: Tinner Laura , Caldwell Deborah , Campbell Rona 
Published: May 2021

Abstract
Background
Adolescent multiple risk behaviour (MRB) continues to be a global health issue. Most interventions have focused on the proximal causes of adolescent MRB such as peer or family influence, rather than targeting the wider environmental or structural context. There is increasing recognition that community mobilisation approaches could be beneficial for adolescent health. Despite this, there are gaps in the current literature, theory and implementation that would benefit from a realist approach due to the suitability of this methodology to analysing complex interventions. The objective of this study is to understand ‘how, why, for whom and in what circumstances and time periods’ do community mobilisation interventions work to prevent and/or reduce adolescent multiple risk behaviour.

Methods
This is a protocol for a realist review. The review will use a six-stage iterative process, guided by the RAMESES framework. We will systematically search PubMed, MEDLINE, PsycINFO, Web of Science, CINAHL and Sociological Abstracts, from their inception to 2021. Studies will be screened for relevance to the programme theory and included based on a priori eligibility criteria including (1) reporting a community mobilisation intervention (2) targeting two health risk behaviors (3) for adolescent populations. Two independent reviewers will select, screen and extract data related to the program theory from all relevant sources. A realist logic of analysis will be used to identify all context-mechanism-outcome configurations that contribute to our programme theory. The findings will be synthesised to produce a refined programme theory model.

Discussion
The goal of this realist review is to identify and refine a programme theory for community mobilisation approaches to the prevention and/or reduction of adolescent multiple risk behaviour. Our aim is that the findings surrounding the programme theory refinement can be used to develop and implement adolescent multiple risk behaviour interventions and maintain collaboration between local policy makers, researchers and community members.

Systematic review registration
This realist review is registered on the PROSPERO database (registration number: CRD42020205342).
Multicomponent compression system use in patients with chronic venous insufficiency: a real-life prospective study
Authors: Stücker Markus , Münter Karl-Christian , Erfurt-Berge Cornelia , Lützkendorf Steffen , Eder Stephan , Möller Udo , Dissemond Joachim 
Published: May 2021

Objective: Compression therapy is the cornerstone of therapeutic management of patients with chronic venous insufficiency (CVI). This study aimed to evaluate the efficacy and safety of a multicomponent compression system in an unselected population of patients with CVI problems under real-life conditions. Method: A prospective, multicentre, observational study with a multicomponent two-bandage compression system (UrgoK2, Laboratoires Urgo, France) was conducted in 103 centres in Germany. Main outcomes included wound healing rate, wound healing progression, assessment of oedema and ankle mobility, local tolerability and acceptance of the compression therapy. Results: A total of 702 patients with venous leg ulcers (VLU) and/or with lower limb oedema due to CVI were treated with the evaluated system for a mean (±standard deviation) duration of 27±17 days. By the last visit, 30.9% of wounds had healed and 61.8% had improved. Limb oedema was resolved in 66.7% of patients and an improvement of ankle mobility was reported in 44.2% of patients. The skin condition under the compression therapy was also considered as improved in 73.9% of patients and a substantial reduction of pain was achieved, both in number of patients reporting pain and in pain intensity. Compression therapy with the evaluated system was ‘very well’ or ‘well’ tolerated and ‘very well’ or ‘well’ accepted by >95% of patients. These positive outcomes were in line with the general opinion of physicians on the evaluated compression bandages, which were judged ‘very useful’ or ‘useful’ for >96.6% of patients. Similar results were reported regardless of the treated condition, VLU and/or limb oedema. Conclusion: Real-life data documented in this large observational study of non-selected patients receiving compression therapy in daily practice confirm the benefits and safety profile of the evaluated compression system. This study also confirms the high-level of performance and acceptability of the system, regardless of the characteristics of the wounds or patients at initiation of the treatment. The data support the use of this multicomponent compression system as one first-line intervention in patients with symptoms caused by CVI.
Epidemiology of soil-transmitted helminths following sustained implementation of routine preventive chemotherapy: Demographics and baseline results of a cluster randomised trial in southern Malawi
Authors: Witek-McManus Stefan , Simwanza James , Chisambi Alvin B. , Kepha Stella , Kamwendo Zachariah , Mbwinja Alfred , Samikwa Lyson , Oswald William E. , Kennedy David S. , Timothy Joseph W. S. , Legge Hugo , Galagan Sean R. , Emmanuel-Fabula Mira , Schaer Fabian , Ásbjörnsdóttir Kristjana , Halliday Katherine E. , Walson Judd L. , Juziwelo Lazarus , Bailey Robin L. , Kalua Khumbo , Pullan Rachel L. 
Published: May 2021

Malawi has successfully leveraged multiple delivery platforms to scale-up and sustain the implementation of preventive chemotherapy (PCT) for the control of morbidity caused by soil-transmitted helminths (STH). Sentinel monitoring demonstrates this strategy has been successful in reducing STH infection in school-age children, although our understanding of the contemporary epidemiological profile of STH across the broader community remains limited. As part of a multi-site trial evaluating the feasibility of interrupting STH transmission across three countries, this study aimed to describe the baseline demographics and the prevalence, intensity and associated risk factors of STH infection in Mangochi district, southern Malawi. Between October-December 2017, a community census was conducted across the catchment area of seven primary healthcare facilities, enumerating 131,074 individuals across 124 villages. A cross-sectional parasitological survey was then conducted between March-May 2018 in the censused area as a baseline for a cluster randomised trial. An age-stratified random sample of 6,102 individuals were assessed for helminthiasis by Kato-Katz and completed a detailed risk-factor questionnaire. The age-cluster weighted prevalence of any STH infection was 7.8% (95% C.I. 7.0%-8.6%) comprised predominantly of hookworm species and of entirely low-intensity infections. The presence and intensity of infection was significantly higher in men and in adults. Infection was negatively associated with risk factors that included increasing levels of relative household wealth, higher education levels of any adult household member, current school attendance, or recent deworming. In this setting of relatively high coverage of sanitation facilities, there was no association between hookworm and reported access to sanitation, handwashing facilities, or water facilities. These results describe a setting that has reduced the prevalence of STH to a very low level, and confirms many previously recognised risk-factors for infection. Expanding the delivery of anthelmintics to groups where STH infection persist could enable Malawi to move past the objective of elimination of morbidity, and towards the elimination of STH.
Trial registration: NCT03014167.
SARS-CoV-2 transmission in students of public schools of Catalonia (Spain) after a month of reopening
Authors: Llupià Anna , Borràs-Santos Alícia , Guinovart Caterina , Utzet Mireia , Moriña David , Puig Joaquim 
Published: May 2021

Introduction
SARS-CoV-2 transmission within schools and its contribution to community transmission are still a matter of debate.

Methods
A retrospective cohort study in all public schools in Catalonia was conducted using publicly available data assessing the association between the number of reported SARS-CoV-2 cases among students and staff in weeks 1–2 (Sept 14-27th, 2020) of the academic year with school SARS-CoV-2 incidence among students in weeks 4–5. A multilevel Poisson regression model adjusted for the community incidence in the corresponding basic health area (BHA) and the type of school (primary or secondary), with random effects at the sanitary region and BHA levels, was performed.

Results
A total of 2184 public schools opened on September 14th with 778,715 students. Multivariate analysis showed a significant association between the total number of SARS-CoV-2 cases in a centre in weeks 1–2 and the SARS-CoV-2 school incidence among students in weeks 4–5 (Risk Ratio (RR) 1.074, 95% CI 1.044–1.105, p-value <0.001). The adjusted BHA incidence in the first two weeks was associated with school incidence in weeks 4–5 (RR 1.002, 95% CI 1.002–1.003, p-value <0.001). Secondary schools showed an increased incidence in weeks 4 and 5 (RR primary vs secondary 1.709 95% CI 1.599–1.897, p-value <0.001).

Conclusions
Safety measures adopted by schools were not enough to stop related-to-school transmission in students and could be improved. The safest way to keep schools open is to reduce community transmission down to a minimum.
»Wir musizieren – trotzdem!« – Die Stuttgarter Jüdische Kunstgemeinschaft
Authors: Waller Anja 
Published: May 2021

Abstract
The Stuttgarter Jüdische Kunstgemeinschaft (Stuttgart Jewish Art Society) existed only five years from 1933 to 1938 before the November Pogrom put an end to Jewish cultural work in Stuttgart. In just these five years, however, the Kunstgemeinschaft had become a nationally known and celebrated institution of Jewish cultural work – despite and in reaction to the National Socialists’ repressive policy of exclusion and surveillance. The Kunstgemeinschaft offered working alternatives for Jewish artists who had become unemployed and cultural events for the Jewish population excluded from society. In addition, the idea of »geistiger Widerstand« (intellectual resistance) found its way into the work of the Kunstgemeinschaft. But the real achievement of the Kunstgemeinschaft was its sheer existence in times of adverse and constantly changing political circumstances: it offered the Jews of Stuttgart and Württemberg a place of cultural enrichment and a home in difficult times.
A novel separation method of the valuable components for activated clay production wastewater
Authors: Zhou Lvshan , Peng Tongjiang , Sun Hongjuan , Fu Dong , Lai Chuan 
Published: May 2021

Abstract
The acidic wastewater produced by the wet production of activated clay contains valuable components such as iron and aluminum. The precipitation method was successfully introduced to separate iron and aluminum from the activated clay production wastewater step by step, which can not only recover the valuable components, but also avoid environmental pollution. In the separation process, gypsum, iron aluminum phosphate, alumina, and sodium sulfate were prepared, and the phase compositions of separation products were analyzed by XRD and IR. The main influencing factors in the separation of iron and aluminum components were studied by single factor experiment. The results show that at the optimized conditions, phosphorus/iron molar ratio 6.0, the system pH 3.0, the reaction temperature 343 K, and the reaction time 90 min, the iron(iii) ion in the system can form a sodium-containing aluminum iron phosphate double salt, and the filtrate after separating Fe3+ and part of Al3+ can meet the requirements for forming high-purity Al2O3. During the phosphate precipitation process, the hypothesis should be correct that Al3+ reacts with

PO

4

3
−

{\text{PO}}_{4}^{3-}

to form an AlPO4 skeleton, Fe3+ isomorphically replaces Al3+ in the [AlO4] tetrahedron, and adsorption occurs simultaneously, with Na+ occupying the terminal acid sites, P(Al)–OH.
Switch-reference and its role in referential choice in Mbyá Guaraní narratives
Authors: Thomas Guillaume , Antono Gregory , Bradford Laurestine , Kiss Angelika , Winkelman Darragh 
Published: May 2021

Abstract
Switch-reference has been analyzed as a reference tracking mechanism, whose main function is to avoid ambiguity of reference. One domain where this function has been argued to manifest itself is referential choice. Kibrik (Kibrik, Andrej. 2011. Reference in discourse. Oxford: Oxford University Press) notably proposed that switch-reference marking plays the role of a referential aid, which helps to prevent referential conflict, thereby enabling the production of reduced referential expressions such as pronouns and zeros. The present study probes this theory through an analysis of the role of switch-reference marking in multifactorial models of referential choice in Mbyá Guaraní. We show that while switch-reference increases the likelihood of mention reduction in Mbyá Guaraní, this effect is marginal relative to other predictors of referential choice. We argue that this result is compatible with the analysis of switch-reference as a referential aid, but also supports analyses that emphasize the multiplicity of its functions, beyond the disambiguation of reference.
Where irony goes: routinization and the collapse of viewpoint configurations
Authors: Tobin Vera 
Published: May 2021

AbstractThis paper looks at the phenomenon of “irony attrition,” when speakers start out using an expression or engaging in a genre of semiotic activity ironically, but become more earnest in their usage over time. It argues that irony attrition arises as a consequence of three things: (a) the complex viewpoint arrangement that underlies the ironic interpretive stance, (b) routinization or entrenchment, and (c) limitations on our ability to keep track of source information in memory (“source memory”). Irony attrition is not a hazard of irony as irony, but part of a more general tendency for intermediate-level embedded discourse frames to be forgotten, compressed, or mislaid in memory and in quotation. The ironies and erstwhile ironies in this analysis come from the domains of sarcasm, trolling, camp, shtick, and situational ironies in literature, and parody. They are brought into conversation with the evolution of other kinds of perspective-embedding expressions in language acquisition and language change.
Alberto Blest Gana: 100 Years Later
Authors: Vilches Patricia 
Published: May 2021

AbstractBlest Gana at 100is a special edition forOpen Cultural Studies. Alberto Blest Gana was a Chilean writer who wore many hats during his long life, dying in 1920 at the age of 90. One of the most prominent authors of nineteenth-century Chile and Latin America, he went to military school and later held political and diplomatic appointments, all of which caused him to travel and live abroad. In fact,nel mezzo del camminof his life, Blest Gana transferred to Europe and eventually settled in Paris, never to return to his country of birth. His fiction and non-fiction conveyed a vast array of experiences and insights from his life in Chile and overseas. To commemorate the 100 years since his death, contributors toBlest Gana at 100approach his oeuvre from innovative and fresh scholarly angles and thus generate new perspectives on the Chilean author’s most celebrated texts, such asMartín RivasandEl ideal de un calavera. They also examine the early days of his literary career; revisit critical scholarship on Blest Gana from the past; bring less explored texts, such asMariluánandLos Trasplantados(the latter written and published in Paris) to the foreground; research the background to his work as a columnist and discover the extent to which it informed his literary career; and examine the urban social practices in Blest Gana’s award-winning novelLa aritmética en el amor. From these analyses, we hope to foster an ongoing conversation of lively and invigorating Blest Gana scholarship.
Compact antenna based on split ring resonator as high Q-factor antenna for liquid permittivity measurements
Authors: Poorgholam-Khanjari Shima , Hatami Ahmad , Zarrabi Ferdows B. 
Published: May 2021

Abstract
Microwave sensing is important to measure the permittivity of the materials or detecting a material. In this current work, a compact antenna for WLAN application with circular polarization is designed. We are supposed to use it as a sensor to determine the permittivity of industrial oil. For calibration of the sensor, the gasoline and petrol are utilized based on Debye theory and also butanol is checked. This antenna is designed based on Microstrip slot antenna with bent feed line and special split-ring resonator (SRR) as a metamaterial (MTM) element for 4 GHz, it is shown that metamaterial can be considered for improving the Q-factor and matching where the return loss is reduced from −16.5 to −33.5 dB and the Q-factor is increased from 2.39 to 32.9. It covers 4–5 GHz with the bidirectional pattern with gain of 4 dBi which makes it useful for putting inside of liquids. The total dimensions of this resonator are 20 × 20 × 1.6 mm and the FR-4 low-cost substrate is used and the experimental results are confirmed the simulations results by HFSS commercial full-wave software. In fact, this method can be used for fast detecting oil condition and longevity by checking the resonances’ shift and permittivity.
Comparing LiDAR and SfM digital surface models for three land cover types
Authors: Liao Jianghua , Zhou Jinxing , Yang Wentao 
Published: May 2021

Abstract
Airborne light detection and ranging (LiDAR) and unmanned aerial vehicle structure from motion (UAV-SfM) are two major methods used to produce digital surface models (DSMs) for geomorphological studies. Previous studies have used both types of DSM datasets interchangeably and ignored their differences, whereas others have attempted to locally compare these differences. However, few studies have quantified these differences for different land cover types. Therefore, we simultaneously compared the two DSMs using airborne LiDAR and UAV-SfM for three land cover types (i.e. forest, wasteland, and bare land) in northeast China. Our results showed that the differences between the DSMs were the greatest for forest areas. Further, the average elevation of the UAV-SfM DSM was 0.4 m lower than that of the LiDAR DSM, with a 95th percentile difference of 3.62 m for the forest areas. Additionally, the average elevations of the SfM DSM for wasteland and bare land were 0.16 and 0.43 m lower, respectively, than those of the airborne LiDAR DSM; the 95th percentile differences were 0.67 and 0.64 m, respectively. The differences between the two DSMs were generally minor over areas with sparse vegetation and more significant for areas covered by tall dense trees. The findings of this research can guide the joint use of different types of DSMs in certain applications, such as land management and soil erosion studies. A comparison of the DSM types in complex terrains should be explored in the future.
Marked difference in efficiency of the digestive enzymes pepsin, trypsin, chymotrypsin, and pancreatic elastase to cleave tightly folded proteins
Authors: Fu Zhirong , Akula Srinivas , Thorpe Michael , Hellman Lars 
Published: May 2021

Abstract
In order for the intestinal mucosa to absorb dietary proteins they have to be digested into single amino acids or very short peptides of a length of not more than four amino acids. In order to study the efficiency of the digestive endopeptidases to digest folded proteins we have analyzed several target proteins under different conditions, native proteins, heat denatured and acid treated. The three pancreatic serine proteases, trypsin, chymotrypsin, and pancreatic elastase, were found to be remarkable inefficient in cleaving native folded proteins whereas pepsin, which acts at a very low pH (pH 1.2) was much more efficient, possibly due to the denaturing conditions and thereby better accessibility to internal cleavage sites at the low pH. Heat treatment improved the cleavage considerably by all three pancreatic enzymes, but acid treatment followed by return to neutral pH did not have any major effect. Cleavage at the low pH when the protein is in a denatured state, is apparently very efficient. This indicates that pepsin is the prime enzyme cleaving the properly folded native proteins and that the pancreatic enzymes primarily are involved in generating single amino acids or very short peptides for efficient uptake by the intestinal mucosa.
Glutamine synthetase as a central element in hepatic glutamine and ammonia metabolism: novel aspects
Authors: Frieg Benedikt , Görg Boris , Gohlke Holger , Häussinger Dieter 
Published: May 2021

Abstract
Glutamine synthetase (GS) in the liver is expressed in a small perivenous, highly specialized hepatocyte population and is essential for the maintenance of low, non-toxic ammonia levels in the organism. However, GS activity can be impaired by tyrosine nitration of the enzyme in response to oxidative/nitrosative stress in a pH-sensitive way. The underlying molecular mechanism as investigated by combined molecular simulations and in vitro experiments indicates that tyrosine nitration can lead to a fully reversible and pH-sensitive regulation of protein function. This approach was also used to understand the functional consequences of several recently described point mutations of human GS with clinical relevance and to suggest an approach to restore impaired GS activity.
DCSK performance analysis of a chaos-based communication using a newly designed chaotic system
Authors: Biswas Namrata , Mohamed I Raja 
Published: May 2021

Abstract
In this paper, a new chaotic system has been introduced and the fundamental properties of the system were investigated and presented using a bifurcation diagram, max Lyapunov exponent (LE) and phase portraits. The synchronization of the drive and response system has been done using the threshold control parameter. Later the differential chaos shift keying (DCSK) modulation scheme has been carried out for the system as it is the most efficient modulation scheme. The demodulator detects the data without the use of chaotic signal phase recovery, as it uses the non-coherent detection technique. The results were compared with other modulation schemes using the bit error rate (BER) graph. It reveals that the proposed chaos-based system could be used for secure communication. The system has been implemented using the MATLAB Simulink technique.