bluuebunny/crossref_metadata_2025_split huggingface dataset:
A comprehensive multi-objective, multi-parameter and multi-condition optimization of a spiral groove in dry gas seals
Authors: Jiang Jinbo , Zhao Wenjing , Jin Jie , Li Jiyun , Peng Xudong 
Published: December 2020

Abstract
Dry gas seals are widely used in rotating equipment for fluid leakage control and operating efficiency enhancement. Multi-dimensional optimization of geometric parameters of the spiral groove was conducted with considering the comprehensive effect of working conditions, objective functions and the other geometric parameters. Different optimization methods were proposed for solving the multi-dimensional optimization problems. The optimal values of groove width ratio, groove length ratio and spiral angle for the excellent steady performance of spiral grooves under different working conditions were obtained by employing a genetic algorithm and loop iteration optimization method. The performance comparison of two dry gas seals with different geometric parameters was conducted experimentally to verify the effectiveness of numerical results. The results showed that optimal geometric parameters of the spiral groove were significantly influenced by working conditions, objective function and the other geometric parameters. Maximum film stiffness and stiffness-leakage ratio of the spiral groove dry gas seal obtained by genetic algorithm enhanced up to 30% and 45% larger than those obtained by the conventional single factor optimization. The film stiffness and stiffness-leakage ratio were more sensitive to geometric parameters of a spiral groove than that of opening force. The optimization results obtained in this paper provide a theoretical and experimental reference for the design of dry gas seals in different working conditions to meet various sealing performance requirements.
Tensile Properties characterization of Glass and Jute Fabric-based Hybrid Composites and Applications in Engineering
Authors: Khalid Muhammad Yasir , Arif Zia Ullah , Sheikh Muhammad Fahad , Arshad Hassan , Nasir Muhammad Ali 
Published: December 2020

Abstract
Composites have an exceptional prospective to replace traditional metals like steel and aluminium by offering low weight, high strength, excellent damping characteristics and outstanding performance at elevated temperatures. Jute composites are emerging significantly and are being used in the formation of green composites materials. In this study, glass-jute hybrid composites, prepared through hand layup techniques, were used with different layers of glass and jute fiber. The tensile test carried out on these composite materials was according to ASTM D3039 standard. The experimental results stipulate that the tensile properties of Glass Fiber Reinforced Polymer (GFRP) were not affected by the mixing of jute fiber in it. Also, the strength of single layer jute fabric with glass layers and GFRP composites was found out to be almost the same. Furthermore, the hybridization of jute fiber with glass fiber could improve its tensile properties. In addition to this, a numerical simulation using ABAQUS was performed, and an error of nearly 4% was found between the results obtained using numerical and experimental approaches. The error may have been resulted due to the non -uniformity in diameter of jute fiber. Moreover, to find the interfacial strength of the material, Fractography was performed on OLYMPUS Microscope. The results obtained from this analysis indicates that more pull out of jute fabric in high jute weight percentage composites is the leading cause of its lower tensile strength. The benefits of hybrid composites could be seen in many engineering and structural applications including skateboard, hockey and automobile’s interior and exterior parts.
Influence of Orthogeriatrics on the Morbidity and Mortality of Patients with Hip Fracture.
Authors: Balvís Patricia , Dominguez-Prado Diego Matias , Ferradas-Garcia Lucia , Perez-Garcia Marta , Garcia-Reza Alejandro , Castro-Menendez Manuel 
Published: December 2020

Abstract
BACKGROUND: Osteoporotic hip fractures often occur in fragile, elderly patients and are associated with a significant morbidity and mortality. The objective of this study is to evaluate the morbidity and mortality together with the length of hospital stay in patients with hip fracture in two non-consecutive years and to compare their evolution with the involvement of a specialist in orthogeriatric care.MATERIAL AND METHODS: Retrospective study that reviewed a total of 633 patients with an average age of 85.5 years who suffered a hip fracture and were treated in the same service of Trauma and Orthopaedics in two different years (2012 and 2017). We have analysed mortality, morbidity during their hospital stay, the length of hospital stays and the cost-benefit after the implication of a specialist in orthogeriatric care in 2017.RESULTS: Mortality during their hospital stay decreased significantly from 10% in 2012 to 3.6% in 2017. We have also observed a decrease in mortality at 30 days (10.5% versus 7%) and after one year (28.9% versus 24.9%) between both groups, although these differences were not statistically significant. The length of hospital stays decreased significantly between both periods observed. The average stay decreased by 4.8 days, the surgical delay decreased by 1.1 days and the postoperative hospital stay decreased by 3.4 days. The total annual economic savings estimated due to the involvement of a geriatrician in the follow-up of patients with hip fracture was 1,017.084.94€.CONCLUSIONS: The multidisciplinary approach of patients with hip fracture results in a more effective and more efficient care model. The quality of care and the clinical care optimisation of patients in the perioperative period improve and both hospital stay and mortality during hospital stay decrease significantly. A significant economic saving is also obtained in the treatment of this pathology.
Perturbative norm for associated spreading of diseases
Authors: Bhattacharjee Deep , Harikant Aruna 
Published: December 2020

Abstract
The mathematical modelling of a pandemic with prevention, mutation and infection parameters to justify the natural properties of the diseases with a view in controlling it. Strength of the virus strain, population density gradient, cyclic healthcare potentials (with vaccination and cure) along with 2 WAVES (generalized upto ‘n’ waves with dual and anti-dual factors) interpreted over periodic cycles of odd and even permutations to illuminate the necessary conditions for natural and artificial immunization thereby emanating the potential for cures over (−3, ±1, +3) instigation factors as interpreted over a Bell curve.
Medical students' views of e-learning-based medical education during COVID-19 pandemic
Authors: Khojasteh Laleh , Karimian Zahra , Sharifzadeh Sedigheh , Nasiri Elham 
Published: December 2020

Abstract
The number of multimedia courseware developed to assist teaching and learning activities has increased tremendously, following the declaration of schools’ closure during COVID-19 pandemic. This study aimed at e- learning experiences of 550 students of a medical school in Iran during the time Coronavirus pandemic hit Iran. To achieve the objectives of this study, a self-devised questionnaire was used, and the data were analyzed using Independent samples T. test, ANOVA, and MANOVA. Results have demonstrated that university students had a satisfactory e-learning experience during the lockdown with an exception for online synchronous classes. This study also showed that older students are more satisfied with e-learning and that there was a significant difference between the overall mean score of those who had access to PCs and laptops compared to those who had accessed only to mobile phones. Our results also showed a significant difference exists between the e-learning experience of students who had experienced virtual classes prior to Covid-19 pandemic and those who had not; however, no significant difference was seen in terms of the residence of the students and their gender.
An Interactome Map of Maize (Zea mays L.)
Authors: Han Linqian , Zhong Wanshun , Qian Jia , Jin Minliang , Tian Peng , Zhu Wanchao , Zhang Hongwei , Sun Yonghao , Feng Jia-Wu , Chen Guo , Li Ruonan , Xiong Zimo , Li Juan , Luo Zi , Chen Sijia , Jin Qixiao , Li Jiaxin , Li Zhao , Liang Yan , Jin Xiaomeng , Liu Xiangguo , Ye Xinnan , Yin Yuejia , Peng Yong , Lu Xiaoduo , Chen Lingling , Li Qing , Yan Jianbing , Yang Fang , Li Lin 
Published: December 2020

Abstract
Interactomes are powerful tools for encoding and decoding complex life systems. Here, we generated a maize interactome map that integrates genomic interactions, transcriptomic co-expression networks, translatomic co-expression networks, and protein–protein interactions throughout the maize lifecycle. This map, containing over 9 million interactions in more than 5,000 functional modules, reveals extensive functional divergence for duplicate genes and a progressive increase in regulatory divergence between the two maize subgenomes during the flow of genetic information. This network enables dissecting and validating gene functions, re-constructing regulatory pathways, and deciphering molecular mechanisms underlying complex traits combining big data mining technique-machine learning. By applying this map to flowering-time, we identified 1,843 high-confidence genes enriched in eight molecular pathways that are related to flowering time. The function of 30 (out of 58 tested) genes, including 27 novel genes, was verified by loss-of-function mutagenesis. Furthermore, a new pathway involving histone modification was identified and confirmed to regulate flowering time. The interactome map illustrates how coherent sets of molecular interactions connect different types of functional elements and pathway modules to map a genome-wide functional wiring landscape of maize, which will be applicable in a wide range of species.
A Comprehensive Analysis of Unique and Recurrent Copy Number Variations in Alzheimer’s Disease and its Related Disorders
Authors: El Bitar Fadia , Al Sudairy Nourah , Qadi Najeeb , Al Rajeh Saad , Alghamdi Fatimah , Al Amari Hala , Al Dawsari Ghadeer , Alsubaie Sahar , Al Sudairi Mishael , Abdulaziz Sara , Al Tassan Nada 
Published: December 2020

Background:
Copy number variations (CNVs) play an important role in the genetic etiology
of various neurological disorders, including Alzheimer’s disease (AD). Type 2 diabetes mellitus
(T2DM) and major depressive disorder (MDD) were shown to have share mechanisms and signaling
pathways with AD.

Objective:
We aimed to assess CNVs regions that may harbor genes contributing to AD, T2DM, and
MDD in 67 Saudi familial and sporadic AD patients, with no alterations in the known genes of AD and
genotyped previously for APOE.

Methods:
DNA was analyzed using the CytoScan-HD array. Two layers of filtering criteria were applied.
All the identified CNVs were checked in the Database of Genomic Variants (DGV).

Results:
A total of 1086 CNVs (565 gains and 521 losses) were identified in our study. We found 73
CNVs harboring genes that may be associated with AD, T2DM or MDD. Nineteen CNVs were novel.
Most importantly, 42 CNVs were unique in our studied cohort existing only in one patient. Two large
gains on chromosomes 1 and 13 harbored genes implicated in the studied disorders. We identified
CNVs in genes that encode proteins involved in the metabolism of amyloid-β peptide (AGRN, APBA2,
CR1, CR2, IGF2R, KIAA0125, MBP, RER1, RTN4R, VDR and WISPI) or Tau proteins (CACNAIC,
CELF2, DUSP22, HTRA1 and SLC2A14).

Conclusion:
The present work provided information on the presence of CNVs related to AD, T2DM,
and MDD in Saudi Alzheimer’s patients.
Evaluation of Ischemic Heart Disease Factors in Hemophilia Patients in Khorramabad
Authors: Nezami Alireza , Tarhani Fariba , Elahi Sina 
Published: December 2020

Background:
Evaluation of risk factors associated with coronary artery disease and cardiac
health in hemophilia patients is necessary to prevent the onset of ischemic heart disease. In
this study, we evaluated the cardiovascular status of hemophilic patients in Lorestan province for
the early onset of ischemic heart disease.

Methods:
In this cross-sectional descriptive study, a total of 80 patients presenting severe hemophilia,
a detailed questionnaire-based investigation was conducted to analyze the prevalence of
cardiovascular risk factors in severe hemophilic patients. In patients with hemophilia, body mass index
(BMI), blood pressure, diabetes, LDL, cholesterol and HDL, the risk of cardiovascular death
was estimated using a predictive risk predictor algorithm of Europe SCORE.

Results:
The mean age of the patients was 25 years, where all the patients were non-diabetic. Echocardiography
did not show any wall motion abnormality and changes in the T wave and dysrhythmia
were also not seen by ECG. 7 patients had high blood pressure, 11 had abnormal HDL, and 1
had abnormal LDL. In this study, serum LDL and HDL levels were not significantly correlated
with age and BMI. Conversely, age and BMI were significantly associated with hypertension. Hypertension
was observed in people over the age of 25 years and in overweighed individuals. 78.8%
had normal BMI and 21.3% were overweighed. There was no significant correlation between
serum LDL, serum HDL, and blood pressure and sex. The levels of abnormal LDL and HDL were
higher in men than in women.

Conclusion:
ECG findings from our study did not report any significant cardiac abnormalities
among hemophilic patients. Cardiovascular risk factors were not significantly correlated in these
patients.
Smartphone-Based Virtual Agents to Help Individuals With Sleep Concerns During COVID-19 Confinement: Feasibility Study
Authors: Philip Pierre , Dupuy Lucile , Morin Charles M , de Sevin Etienne , Bioulac Stéphanie , Taillard Jacques , Serre Fuschia , Auriacombe Marc , Micoulaud-Franchi Jean-Arthur 
Published: December 2020

Background
The COVID-19 crisis and consequent confinement restrictions have caused significant psychosocial stress and reports of sleep complaints, which require early management, have increased during recent months. To help individuals concerned about their sleep, we developed a smartphone-based app called KANOPEE that allows users to interact with a virtual agent dedicated to autonomous screening and delivering digital behavioral interventions.

Objective
Our objective was to assess the feasibility of this app, in terms of inclusion rate, follow-up rate, perceived trust and acceptance of the virtual agent, and effects of the intervention program, in the context of COVID-19 confinement in France.

Methods
The virtual agent is an artificial intelligence program using decision tree architecture and interacting through natural body motion and natural voice. A total of 2069 users aged 18 years and above downloaded the free app during the study period (April 22 to May 5, 2020). These users first completed a screening interview based on the Insomnia Severity Index (ISI) conducted by the virtual agent. If the users were positive for insomnia complaints (ISI score >14), they were eligible to join the 2-stage intervention program: (1) complete an electronic sleep diary for 1 week and (2) follow personalized sleep recommendations for 10 days. We collected and analyzed the following measures: sociodemographic information, ISI scores and sleep/wake schedules, and acceptance and trust of the agent.

Results
Approximately 76% (1574/2069) of the app users completed the screening interview with the virtual agent. The virtual agent was well accepted by 27.4% (431/1574) of the users who answered the acceptance and trust questionnaires on its usability, satisfaction, benevolence, and credibility. Of the 773 screened users who reported sleep complaints (ISI score >14), 166 (21.5%) followed Step 1 of the intervention, and only 47 of those (28.3%) followed Step 2. Users who completed Step 1 found that their insomnia complaints (baseline mean ISI score 18.56, mean ISI score after Step 1 15.99; P<.001) and nocturnal sleep quality improved significantly after 1 week. Users who completed Step 2 also showed an improvement compared to the initial measures (baseline mean ISI score 18.87, mean ISI score after Step 2 14.68; P<.001). Users that were most severely affected (ISI score >21) did not respond to either intervention.

Conclusions
These preliminary results suggest that the KANOPEE app is a promising solution to screen populations for sleep complaints and that it provides acceptable and practical behavioral advice for individuals reporting moderately severe insomnia.
Militær aktivisme uden politisk handling. Mod en ny forståelse af aktivisme i dansk udenrigs- og sikkerhedspolitik inspireret af Hannah Arendt
Authors: Dreyer Jakob , Nissen Christine Marie Simonsen 
Published: December 2020

Aktivisme bruges hyppigt blandt forskere og praktikere som en ”overordnet etikette på dansk udenrigspolitik” (Pedersen & Ringsmose, 2017, s. 339). Der er ikke konsensus om, hvornår Danmark blev aktivistisk, eller om etiketten passer lige godt på alle områder af udenrigspolitikken. Ikke desto mindre er der bred enighed om, at Danmarks militære engagement i de seneste årtier, herunder særligt deltagelsen i Irak- og Afghanistan-krigene, udgør et højdepunkt i dansk aktivisme. Vores analyse diskuterer og nuancerer denne karakteristik ved at formulere en alternativ forståelse af politisk aktivisme inspireret af Hannah Arendts politiske teori. Med vores konceptualisering gentænker vi centrale begreber i litteraturen – initiativ, risiko og deltagelse – og sondrer mellem militært engagement og egentlig politisk aktivisme. Ud fra denne begrebslige ramme genbesøger vi Danmarks krigsdeltagelse i 2000’erne. Vi argumenterer for, at dansk udenrigspolitik, selv hvad angår krigsdeltagelsen, har været reaktiv, risikoavers og med begrænset folkelig forankring og derfor mindre aktivistisk, end litteraturen hidtil har antaget. Ved at fjerne den aktivistiske etikette forsøger vi at rejse nye spørgsmål om, hvad udenrigspolitisk aktivisme fremadrettet kan og bør være.
Abstract in English:Military Activism Without Political Action? Towards a New Conception of Activism in Danish Foreign and Security Policy Inspired by Hannah ArendtActivism is frequently used by researchers and practitioners alike as “a general label on Danish foreign policy” (Pedersen & Ringsmose, 2017, p. 339, authors’ translation). There is no consensus as to when Denmark became activist or if the label is equally fitting to all foreign policy issue areas. However, there is broad agreement that the military engagements in recent decades, particularly the wars in Afghanistan and Iraq, constitute a high point in Danish activism. Our analysis challenges and nuances this characterization by exploring an alternative understanding of political activism inspired by Hannah Arendt’s political theory. Our alternative concept of activism revisits the central elements of activism; initiative, risk and participation, and distinguishes between military engagement and political activism. Drawing on this conceptual framework, we revisit Denmark’s war engagements focusing on Iraq and Afghanistan in the 2000s. We argue that from a political perspective even Denmark’s war engagements have been reactive, risk averse, and with limited popular anchorage, and are therefore, less activist than hitherto argued. By tearing off the activist label we aim to revitalize the discussion about what Danish Foreign and Security policy can and should be at a time when such questions have rarely had more relevance.
“The Fumes of Polonism and the Stench of Herzenism”: “Vestnik Zapadnoy Rossii” Against Class Revolution and Clas Reaction
Authors: Kotov Aleksandr E. 
Published: December 2020

The journal of Ksenofont A. Govorsky “Vestnik Yugo-Zapadnoy I Zapadnoy Rossii” (“South-West and West Russia Herald”) is known in the history of pubic thought as odious and reactionary. However, this stereotypical image needs some revision: the anti-Polish discourse on the pages of the magazine was not so much nationalistic as anti-aristocratic in nature. Considering the “Poles” primarily as carriers of the aristocratic principles, the editorial board of the magazine claimed to protect the broad masses of the people. Throughout its short history, the magazine consistently opposed both revolutionary and aristocratic propaganda. However, the regional limitations of the problems covered in the magazine did not give it the opportunity to reflect on the essential closeness of the revolutionary and reactionary principles. Yu.F. Samarin and I.S. Aksakov – whose conservative-democratic views, on the whole, were close to “Western Russianism”, promoted by the authors of “Vestnik Yugo-Zapadnoy I Zapadnoy Rossii”, managed to reach that goal.
“Overwhelmingly the Heart Bleeds When You Read the Message of a Local Resident of Belarus...”: Western Russia as Perceived by the Conservative Intelligentsia (by the Example of V.V. Rozanov’s Publicism on the Polish Issue)
Authors: Timiryaev Denis O. 
Published: December 2020

The article is devoted to the analysis of V.V. Rozanov’s views on the situation in the western borderlands of the empire – Western Russia. Those views were expressed in his publicism on the Polish issue. As sources of information the author uses the articles published in the period of the publicist’s active creative work in 1890s–1914. In his articles Rozanov promptly responded to all current events in the region. His debut in covering that subject matter can be traced to the publication of his reflections regarding the personality of M.N. Muravyev-Vilensky and the latter’s contribution to the «Russian Case» in Western Russia (informational cause was the opening of the monument to him in Vilna). Also he was interested in the following subjects of Western Russia problematic: the problem of introducing local government in Belarusian provinces; the outbreak of religious violence between Catholics and Orthodox Christians in Belarus and Kholmshchina in 1905–1907; the problem of the compliance of the government policy in the Western provinces with the true national goals. In his articles Rozanov repeatedly drew the authorities’ and society’s attention to the danger of Polish nationalism and to the danger of the repeated attempts to assimilate the Russians (Belarusians and Ukrainians) of the Western region. He never stopped worrying about the situation with the Orthodox Christians. The inconsistency of judgments and views inherent to Rozanov was vividly demonstrated in his publications devoted to that subject.
16.5%
Authors: Hill Natasha 
Published: December 2020

My name is Gabriella Campbell and I am a white Māori. Growing up, this is what I heard from my classmates and teachers. The way I acted, behaved or dressed most likely convinced most of them I was white. I mean seriously, just because my skin is a shade lighter than the ‘real’ Māori kids, doesn’t mean I can’t be one of them. In fact, I was probably one of the few Māori kids at my school, which was located right in the middle of other high decile schools around Auckland. St Helinbergs was where it began.