bluuebunny/crossref_metadata_2025_split huggingface dataset:
A systematic review and meta-analysis for association of Helicobacter pylori colonization and celiac disease
Authors: Amlashi Fazel Isapanah , Norouzi Zahra , Sohrabi Ahmad , Shirzad-Aski Hesamaddin , Norouzi Alireza , Ashkbari Ali , Gilani Naghme , Fatemi Seyed Alireza , Besharat Sima 
Published: March 2021

Background and objectives
Based on some previous observational studies, there is a theory that suggests a potential relationship between Helicobacter pylori (H. pylori) colonization and celiac disease (CeD); however, the type of this relationship is still controversial. Therefore, we aimed to conduct a systematic review and meta-analysis to explore all related primary studies to find any possible association between CeD and human H. pylori colonization.

Data sources
Studies were systematically searched and collected from four databases and different types of gray literature to cover all available evidence. After screening, the quality and risk of bias assessment of the selected articles were evaluated.

Synthesis methods
Meta-analysis calculated pooled odds ratio (OR) on the extracted data. Furthermore, heterogeneity, sensitivity, subgroups, and publication bias analyses were assessed.

Results
Twenty-six studies were included in this systematic review, with a total of 6001 cases and 135512 control people. The results of meta-analysis on 26 studies showed a significant and negative association between H. pylori colonization and CeD (pooled OR = 0.56; 95% CI = 0.45–0.70; P < 0.001), with no publication bias (P = 0.825). The L’Abbé plots also showed a trend of having more H. pylori colonization in the control group. Among subgroups, ORs were notably different only when the data were stratified by continents or risk of bias; however, subgroup analysis could not determine the source of heterogeneity.

Conclusions
According to the meta-analysis, this negative association might imply a mild protective role of H. pylori against celiac disease. Although this negative association is not strong, it is statistically significant and should be further considered. Further investigations in both molecular and clinic fields with proper methodology and more detailed information are needed to discover more evidence and underlying mechanisms to clear the interactive aspects of H. pylori colonization in CeD patients.

Systematic review registration number (PROSPERO)
CRD42020167730 https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=167730.
Relationship between family functioning, differentiation of self and anxiety in Spanish young adults
Authors: Dolz-del-Castellar Blanca , Oliver Jesús 
Published: March 2021

Objectives
In the present study, the relationship between family functioning, differentiation of self and trait anxiety was examined. In addition, differences in trait anxiety and differentiation of self according to sex were studied. It was also checked whether family functioning predicted the achieved degree of differentiation of self, and whether family functioning and differentiation of self predicted the level of trait anxiety. Finally, it was analyzed whether the level of differentiation of self mediated the relationship between family functioning and trait anxiety.

Methods
The study involved 185 Spanish participants, aged between 18 and 56 years and the scales used were the Family Adaptability and Cohesion Evaluation Scale-20Esp (FACES-20Esp), the Differentiation of Self Scale (EDS) and the State-Trait Anxiety Inventory (STAI).

Results
The results indicated that family functioning was related to differentiation of self and trait anxiety, and that differentiation of self was related to trait anxiety. In addition, according to sex, differences were found in the degree of differentiation of self and in the I Position, with a higher score for men, as well as in Emotional Reactivity and trait anxiety, with higher scores for women. It was also observed that family functioning predicted the level of differentiation of self, and that differentiation of self and family functioning predicted trait anxiety. Finally, it was found that the relationship between family functioning and trait anxiety was partially mediated by differentiation of self.

Conclusions
There are relationships between family functioning, differentiation of self and trait anxiety, and there are differences in differentiation of self and trait anxiety based on sex. The relevance of the results and their implications for clinical practice are discussed.
Impact of change in household environment condition on morbidity in India: Evidence from longitudinal data
Authors: Brahmanandam N. , Nagarajan R. 
Published: March 2021

Background
Household environment condition is an important predictor of morbidity of the household members. Without forming a healthy household environment, creating a healthy population is not possible. In this background, this study assesses the impact of change in household environment conditions on morbidity.

Methods
For the empirical analysis purpose of this study, we used two waves of longitudinal data from India Human Development Survey (2004–05, 2011–12). This study is based on 34131 re-contacted households in 2011–12 from the base year 2005. The bivariate and ANOVA tests were performed to assess any short-term morbidity (diarrhoea, fever and cough) with respect to change in household environment condition from 2005 to 2011. The multivariate linear regression was performed to assess the impact of change in household environment conditions on morbidity. The multinomial logistic regression was used to assess the impact of change in household environment condition on change in morbidity.

Results
The results from multivariate linear regression have shown that the share of household members fell sick due to any short-term morbidity (ASM) was significantly lower (β = –0.060, P<0.001) among the households who lived in clean environment condition in both the periods, 2004–05 and in 2011–12 as compared to those who were living in poor environment condition in both periods net of other socio-economic characteristics of the households. The share of household members fell sick due to any short-term morbidity has significantly declined (β = –0.051, P<0.001) among the household whose household environment condition has changed from poor in 2004–05 to clean environment in 2011–12 as compared to the households who have lived in poor environment condition in both periods in 2004–05 and 2011–12. The results of adjusted percentage from multinomial logistic regression have shown that the household members who fell sick with ASM was remained higher (4.9%; P<0.05) among the households whose environment condition was remained poor in both years in 2005 and 2011 as compared to the other households (2.7%) who remained in the better-off condition in both years in 2005 and 2011.

Conclusion
Considering the findings of the study, we suggest that ongoing government flagships programmes such as Swacch Bharat Mission (Clean India Mission), Pradhan Mantri Ujjwala Yojana (Prime Minister Clean Energy Scheme) and Pradhan Mantri Awas Yojana (Prime Minister Housing Scheme), and Jal Jeevan Mission (Improved Source of Drinking Water Scheme) should work in tandem to improve household environment conditions.
The interaction of L2 and L3 levels of proficiency in third language acquisition
Authors: Cal Zuzanna , Sypiańska Jolanta 
Published: March 2021

AbstractLevel of proficiency (LoP), unlike other factors, such as L2 status (Cenoz 2001) or linguistic proximity (Westergaard et al. 2016), has not been widely investigated in terms of third language acquisition (TLA). However, it is possible that LoP in L2 (Tremblay 2006), L3 (Wrembel 2010) and the interaction between these factors (Sypiańska and Cal in press) might play an important role in TLA. This study, thus, aims to further examine the aforesaid possibilities by analysing the influence of L2 and L3 LoP and their interaction on the production of L3 vowels in a group of L1 Polish/L2 English/L3 Spanish speakers who differ in terms of LoP in their foreign languages. A MANOVA was conducted to compare the main effects of L2LoP, L3LoP and vowel as well as the interaction effect between these factors on the production of L3 Spanish vowels. The results indicate an influential role of L2LoP and L3LoP and their interaction depending on the vowel being analysed. Low proficiency in one of the languages allowed the other, more proficient one, to impact the production of the L3 Spanish vowels. This interplay of factors expands the understanding of how the L2 and L3 proficiency condition the developing L3.
Bartonella henselae IgM seropositivity in both adult and pediatric patients with diverse clinical conditions in Turkey
Authors: Arıcı Neslihan , Aksaray Sebahat , Ankaralı Handan 
Published: March 2021

AbstractBartonella henselae is the causative agent of cat scratch disease (CSD). In this study, we aimed to investigate the clinical data of patients with suspicion of CSD and delineate current epidemiological features.A total of 785 patients with suspected CSD were included in the study. B. henselae IgM antibody was determined by indirect fluorescent antibody (IFA) test using a commercial kit (Euroimmun, Germany). Sex, age, clinical pre-diagnosis and animal contact information of the patients were obtained from hospital electronic database records.Seventy-eight (9.9%) of 785 samples were seropositive. Out of 78 patients, 46 with animal contact data were further analyzed. Of these patients, 56% were male, and 41% were under 18 years of age. Seropositivity was more commonly observed in fall and winter. The most common finding was lymphadenitis (63%). Thirty-five patients (76%) had a previous history of animal contact (cat/dog). Of the 46 seropositive patients, 78.3, 15.2, 4.4, and 2.1% had titers of 1:80, 1:160, 1:320, and 1:640, respectively.Our study confirms that CSD is not rare in Turkey. Thus, it should always be considered in the differential diagnosis of patients presenting with lymphadenopathy in all age groups, particularly children. Questioning of cat exposure should never be neglected, especially in areas with intense population of stray cats, such as Istanbul.
Robust estimation of the extreme value index of Pareto-type distributions under random truncation with applications
Authors: Djabrane Yahia , Abida Zahnit , Brahim Brahimi 
Published: March 2021

In this paper, we introduce a new robust estimator for the extreme value index of Pareto-type distributions under randomly right-truncated data and establish its consistency and asymptotic normality. Our considerations are based on the Lynden-Bell integral and a useful huberized M-functional and M-estimators of the tail index. A simulation study is carried out to evaluate the robustness and the nite sample behavior of the proposed estimator. Extreme quantiles estimation is also derived and applied to real data-set of lifetimes of automobile brake pads.
Membangkitkan Ekonomi Rakyat Secara Berjamaah Melalui Koperasi
Authors: Fitriati Ulfa 
Published: March 2021

Program Kemitraan Masyarakat (PKM) kewirausahaan berupa sosialisasi koperasi syariah 212 di Kota Banjarbaru dibantu oleh 6 orang mahasiswa Teknik Sipil. Koperasi adalah sebuah organisasi ekonomi yang dimiliki dan dioperasikan oleh orang-seorang demi kepentingan bersama. Koperasi melandaskan kegiatan berdasarkan prinsip gerakan ekonomi rakyat yang berdasarkan asas kekeluargaan. 212 Mart adalah merek minimarket Koperasi Syariah 212. 212 Mart menjual barang kebutuhan sehari-hari masyarakat seperti bahan pokok, perlengkapan rumah tangga, alat tulis, dll. Berbeda dengan minimarket pada umumnya, 212 Mart tidak menjual rokok, minuman keras, alat kontrasepsi dan produk yang tidak halal. Dalam menjalankan bisnisnya, 212 Mart memberikan lapak kepada pelaku Usaha Mikro, Kecil, dan Menengah (UMKM) untuk dapat menjual produknya. 212 Mart buka mulai pukul 8 dan tutup pada pukul 21 setiap hari. Setiap waktu shalat, 212 Mart menutup gerai tokonya selama lebih kurang 15 menit. Hasil sosialisasi anggota Koperasi Syariah 212 Amanah Idaman Banjarbaru bertambah 90 orang, semula 44 orang anggota di bulan Februari 2019 hingga 7 Juli 2020 sudah mencapai 134 orang. Dengan simpanan total mencapai 300 juta lebih. Hal ini menunjukkan hanya sebagian masyarakat yang tahu bahwa koperasi adalah usaha berjamaah dengan modal kecil untuk meningkatkan ekonomi masyarakat.
DAKWAH DI TENGAH PANDEMI (STUDI TERHADAP RESPONS DAI DI MEDIA SOSIAL)
Authors: Hidayati Diajeng Laily , Fahlevi Reza 
Published: March 2021

The Covid-19 (Corona Virus Disease-19) outbreak has managed to change the patterns of social life on society, including the change regarding the way Da’wa is performed; from conventional direct Da’wa to mediated Da’wa through internet. This article aims at describing responses of the Da’is (proselytizers) in social media pertaining to the spread of the Covid-19. This article applied qualitative method to analyse Da’wa contents related to Covid-19 on social media. Data were collected through observation and documentation. Findings show that there are at least three types of responses from the Da’is; cognitive, affective, and behavioural responses. Cognitive response is manifested in the form of delivering information regarding Covid-19 from the general and medical perspective such as promoting frequent hand-washing, maintaining good hygiene, obeying the government measurements, maintaining healthy level of gratitude and praying to God to be saved from the outbreak. Affective response is manifested in the form of promoting empathy, positive thinking, and avoiding panic. Behavioural response is manifested in the form of giving real-life example such as performing online congregation (pengajian online), wearing face mask, applying appropriate disinfection, and helping those heavily affected by the outbreak.Keywords: Covid-19, Dai, responses, and social media.
Alluvial Fan Alteration Due to Debris-Flow Deposition, Incision, and Channel Migration at Forest Falls, California
Authors: Cato Kerry , Goforth Brett 
Published: March 2021

ABSTRACT
Historical patterns of debris flows have been reconstructed at the town of Forest Falls in the San Bernardino Mountains using a variety of field methods (mapping flow events after occurrence, dendrochronology evidence, soil chronosequences). Large flow events occur when summer thunderstorms produce brief high-intensity rainfall to mobilize debris; however, the geomorphic system exhibits properties of non-linear response rather than being a single-event precipitation-driven process. Previous studies contrasted the relative water content of flows generated by varying-intensity summer thunderstorms to model factors controlling flow velocity and pathway of deposition. We hypothesize that sediment discharge in this geomorphic system exhibits multiple sources of complexity and present evidence of (1) thresholds of sediment delivery from sources at the higher reaches of bedrock canyons, (2) storage effects in sediment transport down the bedrock canyons, and (3) feedbacks in deposition, remobilization, and transport of sediment across the alluvial fan in dynamic channel filling, cutting, and avulsion processes. An example of the first component occurred in March 2017, when snowmelt generated a rapid translational landslide and debris avalanche of about 80,000 m3; this sediment was deposited in the bedrock canyon but moved no farther down gradient. The second component was observed when accumulation of meta-stable sediments in the bedrock canyon remained in place until fluvial erosion and subsequent debris flow provided dynamic instability to remobilize the mass downstream. The third component occurred on the alluvial fan below the bedrock canyon, where low-water-content debris flows deposited sediments that filled the active channel, raising the channel grade level to levee elevation, allowing for subsequent spread of non-channelized flows onto the fan surface and scouring new channel pathways down fan. A conceptual model of spatial and temporal complexities in this debris-flow system is proposed to guide future study for improved risk prediction.
Detecting Pressure Anomalies While Drilling Using a Machine Learning Hybrid Approach
Authors: Lafond Aurore , Ringer Maurice , Le Blay Florian , Liu Jiaxu , Millan Ekaterina , Ba Samba , Chao Mu 
Published: March 2021

Abstract
Abnormal surface pressure is typically the first indicator of a number of problematic events, including kicks, losses, washouts and stuck pipe. These events account for 60–70% of all drilling-related nonproductive time, so their early and accurate detection has the potential to save the industry billions of dollars. Detecting these events today requires an expert user watching multiple curves, which can be costly, and subject to human errors. The solution presented in this paper is aiming at augmenting traditional models with new machine learning techniques, which enable to detect these events automatically and help the monitoring of the drilling well.
Today’s real-time monitoring systems employ complex physical models to estimate surface standpipe pressure while drilling. These require many inputs and are difficult to calibrate. Machine learning is an alternative method to predict pump pressure, but this alone needs significant labelled training data, which is often lacking in the drilling world. The new system combines these approaches: a machine learning framework is used to enable automated learning while the physical models work to compensate any gaps in the training data. The system uses only standard surface measurements, is fully automated, and is continuously retrained while drilling to ensure the most accurate pressure prediction. In addition, a stochastic (Bayesian) machine learning technique is used, which enables not only a prediction of the pressure, but also the uncertainty and confidence of this prediction. Last, the new system includes a data quality control workflow. It discards periods of low data quality for the pressure anomaly detection and enables to have a smarter real-time events analysis.
The new system has been tested on historical wells using a new test and validation framework. The framework runs the system automatically on large volumes of both historical and simulated data, to enable cross-referencing the results with observations. In this paper, we show the results of the automated test framework as well as the capabilities of the new system in two specific case studies, one on land and another offshore. Moreover, large scale statistics enlighten the reliability and the efficiency of this new detection workflow. The new system builds on the trend in our industry to better capture and utilize digital data for optimizing drilling.
The Value of Integrated Downhole Passive Acoustic Monitoring During an Extended Leak Off Test to Prove Formation Integrity. A Case Study
Authors: Volkov Maxim , Björk Henric , Kudriavaia Natalia , Andrews Jamie Stuart , Carlsen Truls , Strøm Steinar 
Published: March 2021

Abstract
The Extended Leak Off Test (XLOT) is a sophisticated formation integrity test that can be performed during drilling, recompletion, or at the well abandonment stage. The test is usually characterized by multiple cycles, creating and manipulating a fracture that can extend several meters away from the wellbore. The test can provide more data (both formation stress and fracture mechanics) compared to traditional leak-off tests. This data is used extensively both for determination of the in-situ formation stress for well barrier integrity assessment and for more general rock mechanical work such as quantifying fracture gradient for use in wellbore stability programs for drilling and completion operations.
The interpretation is performed by analysis of the surface pressure and, often with downhole data from memory gauges (or, increasingly, with real-time data from wired pipe) at different stages of the XLOT test. The typical XLOT pressure analysis chart is shown below (see Fig.1). The key determined parameters are:–Leak Off Pressure (LOP)–Fracture Initiation Pressure (FIP)–Formation Break Down Pressure (FBR)–Formation Propagation Pressure (FPP)–Instantaneous Shut-In Pressure (ISIP)–Formation Closure Pressure (FCP)–Fracture Reopening Pressure (FRP)Figure 1The traditional XLOT interpretation plot.
A key requirement of the test is to ensure hydraulic connectivity to the targeted formation only. This can be achieved in the case where annulus barriers are in place and perform well. Unintentional communication to non-targeted zones may result in abnormal behavior, more complex interpretation of obtained data, larger uncertainty in the meaning of the results and ultimately failure of the XLOT test.
To verify the well barriers integrity prior to the XLOT different techniques can be utilized. The main one is cement bond logging across the cemented barriers. This indicates the condition of the cement behind the first casing and increases the level of confidence the test will be conducted successfully. "However, recent case studies have shown that an indication of good bond above and/or below the target formation from a cement bond log cannot guarantee the isolation required to sufficiently hold the applied pressure [Maxim Volkov]."
The paper demonstrates an approach taken by Equinor in a special application where XLOT testing was advanced by adding downhole monitoring during the test. This targeted the following parameters to evaluate the new essential components of XLOT interpretation: –depth and capacity of opened and re-opened fractures,–actual sealing of the cement barriers above and below the targeted zone,–failure investigation in case the FBP cannot be achieved.
Failure Modes and Root Cause Analyses of Advanced Drill Collar Connections
Authors: Du Michael Hui , Li Ke , Song Fei , Li Haoming , Smith David L. , Blackman Wesley 
Published: March 2021

Abstract
Advanced drill collar connections have been developed with 10 times extended fatigue life compared with the corresponding replaced connections. More than 4,000 advanced connections have been run in North America. Although these connections have demonstrated substantial fatigue strength improvement in operation, some failures have occurred. Multiple failed connection samples have been retrieved and analyzed for their failure modes and the root causes.
In the failure analyses, manufacturing data were reviewed to identify any possible discrepancies between design specifications and manufactured components. The field run data were analyzed for the loading histories of the connections. The downhole fluid properties were also reviewed to identify their possible effects on the connection performances. The bottom hole assemblies were numerically analyzed to determine the loading distributions. The failed connection samples were physically processed and inspected in the metallurgical laboratory. Based on the combined numerical and testing analyses, the conclusions on the failure modes and the root causes were drawn.
It was found that the primary failure mode for these connections was fatigue. The root causes for the fatigue failures can be divided into two categories: manufacturing causes and operational causes. Among the manufacturing failure causes, incorrect cold rolling is the primary one. The operation related failures were mainly caused by overloading.
Through failure mode and root cause analyses, the manufacturing and operational related risks for the advanced drill collar connections were mitigated accordingly. It therefore greatly improved the quality assurance of the advanced connections.