bluuebunny/crossref_metadata_2025_split huggingface dataset:
The comparison of USG measured cervical length in pregnant women with previous induced abortion versus those who have not had an induced abortion
Authors: Naidu Harshita , Hegde Nivedita , M. Anjali , Kanniga Rohini , Vasudeva Akhila 
Published: September 2019

Background: The majority of women who undergo induced abortion are young and of low parity. Hence, it is desirable to look for any association effects of induced abortion with future reproductive outcomes. In this study, we aim to compare ultrasound measured cervical length in pregnant women with previous induced abortion versus those who have not had an induced abortion.Methods: This was a prospective observational study performed at tertiary care hospital. Total of 400 patients were recruited, divided into two groups. Patients with an induced abortion in previous pregnancy were included as cases and those with no history were taken as controls. Cervical length was measured by transvaginal ultrasound in all participants at 11-14, 18-22 and 28-32 weeks. Pregnancies were followed up to note incidence of spontaneous preterm delivery, preterm pre labour rupture of membranes (PPROM), threatened preterm, and second trimester miscarriage.Results: Authors have found that there was no significant difference in the cervical length of pregnant patients with or without a history of prior induced abortions. In our study authors found that mean cervical length at 11-14weeks, 18-22 weeks, and 28-32 weeks was 3.47±0.126cm and 3.48±0.195cm; 3.44±0.296cm and 3.49±0.182cm; 3.36±0.477cm and 3.42±0.310cm respectively among cases and controls. However, there was a demonstrably increased risk of spontaneous preterm delivery, PPROM and threatened preterm in patients with a history of prior induced abortion.Conclusions: Authors conclude that previous induced abortion increases the risk of threatened preterm, PPROM, spontaneous preterm delivery in the subsequent pregnancy. But, this risk is not predictable by measuring cervical length as the mean cervical length remained the same in both the groups.
Pengorganisasian Kurikulum dan Pembelajaran pada Sekolah Kejuruan di Lingkungan Pesantren
Authors: Ali Nur 
Published: September 2019

<p><em>This paper explains about curriculum management activities in vocational schools within pondok pesantren (WPP). The focus of the discussion is on the orientation of the vocational school curriculum in pesantren and its implementation activities as well as how school leaders and pesantren leaders influence the curriculum implementation organization (OPK) in schools WPP.</em><em> The aim is to find the orientation, strategy and approach of OPK activities in vocational schools WPP. This research used qualitative research with a case study design. Data was collected through in-depth interviews with leaders of Islamic boarding schools, school leaders, and teachers by purposive sampling, observation, and document analysis. The conclusion of this paper is the activities of OPK have led to innovation in curriculum management and learning in schools WPP. The OPK strategy uses Collaborative-collegial management with a democratic approach based on the noble values of pesantren and professionalism.</em></p>
EXPERIMENTAL PRESERVATION OF MUSCLE TISSUE IN QUARTZ SAND AND KAOLINITE
Authors: NEWMAN SHARON A. , DAYE MIRNA , FAKRA SIRINE C. , MARCUS MATTHEW A. , PAJUSALU MIHKEL , PRUSS SARA B. , SMITH EMILY F. , BOSAK TANJA 
Published: September 2019

ABSTRACT
Siliciclastic sediments of the Ediacaran Period contain exceptionally preserved fossils of macroscopic organisms, including three-dimensional casts and molds commonly found in sandstones and siltstones and some two-dimensional compressions reported in shales. The sporadic and variable associations of these exceptionally preserved macroscopic fossils with pyrite, clay minerals, and microbial fossils and textures complicate our understanding of fossilization processes. This hinders inferences about the evolutionary histories, tissue types, original morphologies, and lifestyles of the enigmatic Ediacara biota. Here, we investigate the delayed decay of scallop muscles buried in quartz sand or kaolinite for 45 days. This process occurs in the presence of microbial activity in mixed redox environments, but in the absence of thick, sealing microbial mats. Microbial processes that mediate organic decay and release the highest concentrations of silica and Fe(II) into the pore fluids are associated with the most extensive tissue decay. Delayed decay and the preservation of thick muscles in sand are associated with less intense microbial iron reduction and the precipitation of iron oxides and iron sulfides that contain Fe(II) or Fe(III). In contrast, muscles buried in kaolinite are coated only by <10 μm-thick clay veneers composed of kaolinite grains and newly formed K- and Fe(II)-rich aluminosilicate phases. Muscles that undergo delayed decay in kaolinite lose more mass relative to the muscles buried in sand and undergo vertical collapse. These findings show that the composition of minerals that coat or precipitate within the tissues and the vertical dimension of the preserved features can depend on the type of sediment that buries the muscles. Similar processes in the zone of oscillating redox likely facilitated the formation of exceptionally preserved macrofossils in Ediacaran siliciclastic sediments.
SPE Strong: Strengthening Our Core: Reinforcing Core Strengths, Delivering Membership Value
Authors: Noonan Shauna 
Published: September 2019

President's column
SPE has always been strong and provides great value. I am one of those people who believes we can always be better. That is why I plan to emphasize our core strengths and how we can continue to build on them and grow stronger with the industry we serve. Members who take advantage of what SPE offers will find that it enriches their careers, as it has mine.
I originally joined SPE as a student at the University of Alberta. At that time, SPE was relatively new to Canada, and the student chapter had only recently been established. The Petroleum Society of Canada, which focused on the Canadian oil and gas industry and later merged with SPE, was the predominant association preference among my peers. To me, SPE brought a global perspective on our industry along with strong technical content and excellent conferences. If you had asked me then what value SPE held for me, my answer would have been simple—a chance to network and learn from technical papers. While my fellow students and I were excited to be a part of the SPE family, we had little concept of the depth and breadth of value the society would provide for our future professional development.•
My involvement in SPE has proven to be essential at each pivotal point in my career. As a young engineer, I would gladly pay for my own SPE membership even though I was counting pennies. I considered the annual dues an investment in my career, which continued to pay off repeatedly. I took on many different roles within SPE during my 29 years as a member—embracing positions that would develop my technical knowledge and soft skills, such as leadership and communication. So many doors of opportunity have opened for me because I interacted with my fellow members and utilized what SPE had to offer. The time spent on those SPE activities has always been a wise investment.
As your president, I want to expand the value an SPE membership brings to both members and to companies that support their employees’ involvement in SPE. Our society is strong, yet I believe there are opportunities for improvement in the following areas:••
Gain recognition as the technical and unbiased source of information about our industry
Develop trust within our industry and with the public
Expand the value of membership and attract new members
Illustrate value of attending SPE events against competitor events
Increase manuscript citations and engage those from outside our industry who want to publish with SPE
A foodborne outbreak of gastroenteritis caused by Norovirus and Bacillus cereus at a university in the Shunyi District of Beijing, China 2018: a retrospective cohort study
Authors: Chen Dongwan , Li Yongjin , Lv Jinchang , Liu Xiufeng , Gao Peng , Zhen Guoxin , Zhang Wenzeng , Wu Dan , Jing Hongbo , Li Ying , Zhao Yao , Ma Xiaochen , Ma Huilai , Zhang Lijie 
Published: September 2019

Abstract
Background On September 4, 2018, a boarding school in the Shunyi District of Beijing, China reported an outbreak of acute gastroenteritis. At least 209 suspected students caused of diarrhea and vomiting. The case was investigated, and control measures were taken to prevent further spread. Methods A retrospective cohort study was conducted among the school students and staff in order to test hypothesis that high risk of food served at the school canteen. We collected information on demographics, refectory records, person to person transmission by uniform epidemiological questionnaire. Risk ratios (RR) and 95% conﬁdence intervals (CI) were calculated. Stool specimens of cases and canteen employees, retained food, water, and environmental swabs were investigated by laboratory analysis. Results We identiﬁed 209 cases (including 28 laboratory-confirmed cases) which occurred from August 29 to September 10. All cases were students, and the average age was 20, 52% were male. The outbreak lasted for 13 days, and peaked on September 5. Consumption of Drinks stall and Rice flour stall on September 1 (RR:3.4, 95%CI:1.5-7.8, and RR:7.6, 95%CI:2.8-20.2), Rice flour stall and Fish meal stall on September 2 (RR:4.0, 95%CI:1.2-13.6, and RR:4.6, 95%CI:1.7-12.5), muslim meal stall on September 4 (RR:2.7, 95%CI:1.3-5.4), Barbeque stall on September 5 (RR:3.0, 95%CI:1.2-7.0) were independently associated with increased risk of disease within the following 2 days. Among 35 specimens of rectal swabs or feces from students, 28 specimens were positive. Norovirus GI.6 alone was detected in 23 specimens, Bacillus cereus alone in 3 specimens and both norovirus GI.6 and Bacillus cereus in 2 specimens. 10 specimens of rectal swabs from canteen employees were positive for norovirus GI, and 2 specimens were positive for Bacillus cereus. Four retained food specimens were positive for Bacillus cereus, and environmental samples were negative for any viruses or bacteria. Conclusion Our investigation indicated that canteen employees were infected by two pathogens (norovirus and Bacillus cereus) and transmission may have been possible due to unhygienic practices. Student consumption of food or drink at high-risk stalls was determined as the probable cause of the outbreak.
The effect of intraoperative lidocaine versus esmolol infusion on postoperative analgesia in laparoscopic cholecystectomy: A randomized clinical trial
Authors: Bajracharya Joshan Lal , Subedi Asish , Pokharel Krishna , Bhattarai Balkrishna 
Published: September 2019

Abstract
Background: As a part of multimodal analgesia for laparoscopic cholecystectomy, both intraoperative lidocaine and esmolol facilitate postoperative analgesia, but are not widely used. Our objective was to compare these two emerging strategies that challenge the use of intraoperative opioids. We aimed to assess if intraoperative esmolol infusion is not inferior to lidocaine infusion for opioid consumption after laparoscopic cholecystectomy.
Methods: In this prospective, randomized, double-blind, non-inferiority clinical trial, 90 female patients scheduled for elective laparoscopic cholecystectomy received either intravenous (IV) lidocaine bolus 1.5 mg/kg at induction followed by an infusion (1.5 mg/ kg/hour) or IV bolus of esmolol 0.5 mg/kg at induction followed by an infusion (5-15 µg/kg/min) till the end of surgery. Remaining aspect of anesthesia followed a standard protocol apart from no intraoperative opioid supplementation. Postoperatively, patients received either morphine or tramadol IV to maintain visual analogue scale (VAS) scores ≤ 3. The primary outcome was opioid consumption (in morphine equivalents) during the first 24 postoperative hours. Pain and sedation scores, time to first perception of pain and void, and occurrence of nausea/vomiting were secondary outcomes measured up to 24 hours postoperatively.
Results: Two patients in each group were excluded from the analysis. The postoperative median (IQR) morphine equivalent consumption in patients receiving esmolol was 1 (0-1.5) mg compared to 1.5 (1-2) mg in lidocaine group ( p =0.27). The median pain scores at various time points were similar between the two groups ( p >0.05). Sedation scores were higher in patients receiving lidocaine than in those receiving esmolol up to 30 min in post-anesthesia care unit (PACU; p<0.05); however, no difference was detected later.
Conclusion: Infusion of esmolol is not inferior to lidocaine in terms of opioid requirement and pain severity in the first 24 hours after surgery. Patients receiving lidocaine were more sedated up to 30 min in PACU than those receiving esmolol.
A novel Bcl-2 inhibitor, BM-1197, Induces apoptosis in Malignant Lymphoma Cells through the Endogenous Apoptotic Pathway
Authors: Sun Yue-Li , Jiang Wen-Qi , Luo Qiu-Yun , Yang Da-Jun , Cai Yu-Chen , Huang Hui-Qiang , Sun Jian 
Published: September 2019

Abstract
Background: Bcl-2 family members play an important role in the development of malignant lymphoma and can induce drug resistance in anticancer treatment. The development of small molecules targeting Bcl-2 family protein can be new strategy for malignant lymphoma treatment. In this study, we investigate the antitumor effect and the cellular mechanism of a novel Bcl-2/Bcl-xL dual inhibitor BM-1197 in DCBCL and Burkitt lymphoma cells. Methods: CCK-8 assay was used to detect cell viability. Apoptosis was determined by Hoechst 33258 staining and flow cytometry. The activity of caspase-3/caspase-9 was determined using the caspase-3/ caspase-9 activity kit. Western blotting analysis was performed to evaluate the change of protein expression. The functional analysis was evalueated via immunoprecipitation and siRNA interference. Human malignant lymphoma xenograft models in nude mice were established for in vivo efficacy detection. Results: We find that BM-1197 exerts potent growth-inhibitory activity against lymphoma cells which harbor Bcl-2 and Bcl-xL high expression in vitro and has synergistic effect with chemotherapeutic drugs. Mechanistically, we see that the intrinsic apoptosis pathway is activated upon BM-1197 treatment. BM-1197 affects the protein interaction of Bak/Bcl-xl, Bim/Bcl-2, Bim/Bcl-xl, PUMA/Bcl-2 and induced conformational change in the Bax protein.which results in activation of Bax and release cytochrome c, and activated caspase -9, -3, -7 and finally induce cell apoptosis. Furthermore, our data demonstrates that BM-1197 exhibits strong anti-tumor effects against established human malignant lymphoma xenograft models. Conclusions: Our study demonstrated BM-1197 exerts potent antitumor effects both in vitro and in vivo, and provides promising preclinical data for further development of BM-1197 in malignant lymphoma.
Comparative transcriptomics of stem bark reveals genes associated with bast fiber development in Boehmeria nivea L. Gaud (ramie)
Authors: Xie Jiyong , Li Jiaqi , Jie Yucheng , Xie Deyu , Yang Di , Shi Huazhong , Zhong Yingli 
Published: September 2019

Abstract
Background: Boehmeria nivea L. Gaud (Ramie) produces one of the longest natural fibers in nature. The bark of ramie mainly comprises of the phloem tissue of stem and is the raw material for fiber. Therefore, identifying the molecular regulation of phloem development is important for understanding of bast fiber biosynthesis and improvement of fiber quality in ramie.Results: In this study, we collected top bud (TB), bark from internode elongating region (ER) and bark from internode fully elongated region (FER) from the ramie variety Zhongzhu No. 1. Histological study indicated that these samples contain phloem tissues at different developmental and maturation stages, with a higher degree of maturation of phloem tissue in FER. RNA sequencing (RNA-seq) was performed to identify differentially expressed genes (DEGs) in these three samples. The de novo transcriptome was assembled and unigenes were identified. The DEGs among TB, ER and FER were analyzed, and Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) studies revealed clear differences in gene expression between ER and FER. Some unigenes for secondary cell wall biosynthesis were up-regulated in both ER and FER, while unigenes for some cell wall components or cell wall modifications showed differential expression between ER and FER. In addition, ethylene activating pathway and gibberellins biosynthesis showed distinct regulation and coincided with the developmental stages of the samples.
Conclusions: Both morphological study and gene expression analysis supported a burst of phloem and vascular developmental processes during the fiber maturation in the ramie stem, and the phytohormon ethylene and gibberellin are likely to be involved in this process. Our findings provide novel insights into the phloem development and fiber maturation in ramie, which could be useful for fiber improvement in ramie and other fiber crops.
The effect of the waiting room's environment on level of anxiety experienced by children prior to dental treatment: a case control study
Authors: Fux-Noy Avia , Zohar Maayan , Herzog Karin , Shmueli Aviv , Halperson Elinor , Moskovitz Moti , Ram Diana 
Published: September 2019

Abstract
Background: One of the environmental factors that can cause anxiety prior to dental treatment includes the waiting room experience, specifically the amount of time spent awaiting treatment and the waiting room environment. The purpose of the study was to compare the effect of the waiting room's environment on the level of anxiety experienced by children in multisensory and traditional waiting rooms.Methods: Case control study. Test group waited for treatment in a multisensory waiting room, which consisted of a lighting column that children could touch and climb; as well as, rhythmic music played on loudspeakers. Control group waited for treatment in a traditional waiting room. Study participants were asked to answer the “Venham Picture Test”, a dental anxiety scale, while in the waiting room prior to entering the treatment room. Chi-squared, Fisher's Exact tests, and linear regression were utilized. Results: No significant difference in dental anxiety scores was found between the test and control groups. Dental anxiety was significantly higher in patients who had longer wait time prior to treatment. In addition, dental anxiety was significantly associated with visit purpose: children waiting for dental examination or those scheduled for dental treatment with conscious sedation were less anxious than children waiting for emergency treatment. Conclusions: Sensory adapted waiting room environment may be less important in reducing children's anxiety prior dental treatment. Children’s dental anxiety can be reduced by preventing emergency treatments, scheduling routine dental visits and decreasing waiting time. Trial registration: TRN NCT03197129, date of registration June 20, 2017Key words: Waiting room, Dental anxiety, Multisensory environment
Modified regional citrate anticoagulation is optimal for hemodialysis in patients at high risk of bleeding: A prospective randomized study of three anticoagulation strategies
Authors: Lin Ting , Song Li , Huang Renwei , Huang Ying , Tang Shuifu , Lin Qizhan , Zhang Ying , Wu Xingbo , Liang Hui , Wu Yuchi , Chen Yuanhan , Liang Huaban , Ma Jianchao , Feng Zhonglin , Li Zhuo , Xu Lixia , Fu Xia , Ye Zhiming , Liu Shuangxin , Liang Xinling 
Published: September 2019

Abstract
ABSTRACT
Background： Recommended regular saline flushing presents clinical ineffectiveness for hemodialysis (HD) patients at high risk of bleeding with heparin contraindication. Regional citrate anticoagulation (RCA) has previously been used with a Ca 2+ containing dialysate with prefiltered citrate in one arm (RCA-one). However, anticoagulation is not always achievable and up to 40% results in serious clotting in the venous expansion chamber. In this study, we have transferred one-quarter of the TSC from the prefiltered to the post filter based on RCA-one, which we have called RCA-two. The objective of this study was to compare the efficacy and safety of RCA-two with either saline flushing or RCA-one in HD patients with a high bleeding risk. Method ： In this investigator-initiated, multicenter, controlled, prospective, randomized clinical trial, 52 HD patients (77 sessions) were randomized to the RCA-two and RCA-one group in part one of the trial, and 45 patients (64 sessions) were randomized to the RCA-two and saline group in part two of the trial. Serious clotting events, adverse events and blood analyses were recorded. Results ：Serious clotting events in the RCA-two group were significantly lower compared with the RCA-one and saline group (7.89% vs. 30.77%, P = 0.011; 3.03% vs. 54.84%, P < 0.001, respectively). The median circuit survival time was 240 min (IQR 240 to 240) in the RCA-two group, was signiﬁcantly longer than 230 min (IQR 155 to 240, P < 0.001) in the RCA-one group and 210 min (IQR 135 to 240，P = 0.003) in the saline group. The majority of the AEs were hypotension, hypoglycemia and chest tightness, most of which were mild in intensity. Eight patients (20.51%) in the RCA-one group, 4 patients (12.90%) in the saline group and 10 patients (26.31%) in the RCA-two group, P>0.05. Conclusions ： Our data demonstrated that the modified anticoagulation protocol was more effective and feasible during hemodialysis therapy for patients at high risk of bleeding. Trial registration: GDREC, GDREC2017250H. Registered February 2, 2018; prospectively registered.
Diagnostic accuracy of QuickVue® Dipstick Strep A test and its effect on antibiotic prescribing in children in the United Arab Emirates
Authors: Shabestari Seyed Ali Safizadeh , Malik Zainab A. , Al-Najjar Fadil Y A 
Published: September 2019

Abstract
Background: Unnecessary antibiotic prescription to patients with upper respiratory tract infections (URTIs) has led to the increase in antibiotics resistant bacteria rates. In this study, we evaluated the diagnostic accuracy of QuickVue® Dipstick Strep A test (QV-SAT) in children presenting with acute pharyngotonsillitis and its effect on antibiotic prescribing.
Methods: A single-gated diagnostic accuracy study of children with runny nose, fever, and tonsillitis presenting to a paediatric clinic between March 2016 and September 2018. Paired throat swabs for QV-SAT and culture were collected. None of the children received antibiotics prior to sample collection. Furthermore, positive predictive value (PPV), negative predictive value (NPV) and likelihood ratios of the test were calculated.
Results: 204 children were included in this study. 111 (54.4%) were boys and 146 (71.6%) were under the age of five years. QV-SAT was positive in 44 (21.6%) and throat culture was positive for Group A β- haemolytic Streptococcus (GAS) in 42 (20.6%) of the children. The results of QV-SAT were highly consistent with culture results: only 2 (0.9%) children with negative results had a positive throat culture. The sensitivity of the QV-SAT in the identification of GAS infection was 100% (95% CI 91.6%, 100%) and the NPV was 100% (95% CI 70%, 95%). Only 42 children (21%) were given antibiotics, while 162 (79%) were not.
Conclusion: The QV-SAT is a quick and reliable test which can help dramatically reduce antibiotic prescriptions to children presenting with fever and acute pharyngotonsillitis.