bluuebunny/crossref_metadata_2025_split huggingface dataset:
NONLINEAR TRANSVERSE VIBRATIONS OF COMPOSITE RODS UNDER THE ACTION OF A STATICALLY APPLIED TRANSVERSE LOAD
Authors: Balamirzoev A. , Murtuzov M. , Selimhanov D. , Dibirova Z. , Abdullaev A. 
Published: June 2021

Nonlinear transverse vibrations of composite rods pre-loaded with lagging arranged symmetrically on both sides of the axis of the composite rod under the action of a statically applied transverse load are investigat-ed. The cases of attaching the lagging only to the ends of the composite rod, as well as when the laggings are continuously attached to the composite rod along its entire length, are considered. The results of the study of nonlinear transverse vibrations of composite rods under the action of a statically applied transverse load are presented. When conducting studies of transverse vibrations of composite rods, solutions of differential equations of vibration of prestressed through beams and stiffening cores of high-rise buildings are obtained. The obtained differential equations of vibration of composite rods allow us to determine the dynamic char-acteristics of prestressed through beams under various linear and boundary conditions. A method for com-posing differential equations of free and forced oscillations of prestressed through beams and stiffening cores of high-rise buildings and solving differential equations under various linear and nonlinear boundary conditions is developed.
Expressions are given for determining the longitudinal forces and torques at the ends of the rod at any lo-cation of the lagging from the axis and at any different stiffness of the lagging
Metastable Helium Absorptions with 3D Hydrodynamics and Self-consistent Photochemistry. II. WASP-107b, Stellar Wind, Radiation Pressure, and Shear Instability
Authors: Wang Lile , Dai Fei 
Published: June 2021

Abstract
This paper presents simulations of the metastable helium (He*) observations of WASP-107b, so far the highest signal-to-noise ratio detection that is confirmed by three different instruments. We employ full 3D hydrodynamics coupled with coevolving nonequilibrium thermochemistry and ray-tracing radiation, predicting mass-loss rates, temperature profiles, and synthetic He* line profiles and light curves from first principles. We find that a stellar wind stronger than solar is demanded by the observed heavily blueshifted line profile and asymmetric transit light curve. Radiation pressure can be important for Lyα observations, but not He*. Our model finds that WASP-107b is losing mass at a rate of

M

̇

≃
1.0
×

10

−
9

M

⊕

yr

−
1

. Although

M

̇

varies by <1% given constant wind and irradiation from the host, shear instabilities still emerge from wind impacts, producing ∼10% fluctuations of He* transit depths over hour-long timescales. The common assumption that He* transit depth indicates the fluctuation of

M

̇

is problematic. The trailing tail is more susceptible than planet adjacency to the shear instabilities; thus, the line profile is more variable in the blueshifted wing, while the transit light curve is more variable after midtransit. We stress that the synergy between Lyα (higher altitudes, lower density) and He* (lower altitudes, higher density) transit observations, particularly simultaneous ones, yields better understanding of planetary outflows and stellar wind properties.
La question du Brexit sous la présidence allemande. D’une négociation à hauts risques vers un Brexit dur
Authors: Trouille Jean-Marc , Trouille Helen 
Published: June 2021

Tout au long de la présidence allemande de l’Union, l’un de ses enjeux fondamentaux aura été de mener à leur terme les discussions sur la relation future entre l’Union Européenne et le Royaume-Uni. Michel Barnier, responsable des négociations sur la sortie du Royaume-Uni, a pu compter sur le soutien inconditionnel apporté par cette présidence, afin d’éviter un no deal , qui eut été dommageable à tous, tout en préservant l’unité des 27 États-membres. L’accord, conclu à la veille de Noël 2020 après bien des péripéties, offre un cadre dans lequel s’inscrira la relation future. Mais Michel Barnier invite les Européens à rester vigilants. Comme le démontrent les auteurs, le Royaume-Uni post-Brexit, gagné par une idéologie national-populiste rétrograde ainsi qu’une corruption rampante au plus haut niveau du gouvernement, restera l’enfant terrible d’une Europe que les avocats les plus ardents du Brexit rêvent toujours de détruire.
A multilevel analysis of a randomized clinical trial comparing adjunctive moxifloxacin versus amoxicillin/metronidazole for the treatment of aggressive periodontitis
Authors: Ardila Carlos-Martín , Bedoya-García Jader-Alexander 
Published: June 2021

Background:
It was documented that the clinical outcomes of mechanical periodontal treatment can fluctuate not merely concerning patients but equally among various tooth sites in the subject. This trial evaluates the clinical parameters related with the patient, tooth, and site that generate more changes in clinical attachment level (CAL) gain and probing depth (PD) reduction, using moxifloxacin (MOX) versus amoxicillin plus metronidazole (AMOX + ME) as adjuncts to scaling and root planing (SRP), in comparison to SRP only, post-therapy in generalized aggressive periodontitis (GAgP).

Materials and Methods:
The analysis of this clinical trial included 6012 tooth sites at 1002 teeth in 36 patients; they were randomly assigned to three protocols: Systemically intake of MOX or AMOX + ME plus SRP, or SRP + placebo for 7 days. The clinical effect of the patient, tooth, and site characteristics, in terms of CAL gain and PD reduction, was explored using a multilevel linear model. P < 0.05 was statistically significant.

Results:
Following 6 months of treatment, the differences between the groups were statistically significant, favoring the MOX and AMOX + ME protocols (P < 0.0001). Moreover, the multilevel model showed that adjunctive MOX, AMOX + ME, non-molar, and interproximal sites were the features that contribute significantly to CAL improvement, and PD decreases in GAgP (P ≤ 0.001 for all).

Conclusion:
The most relevant characteristics for the changes in CAL increase and PD diminution, after adjunctive antimicrobials, were ascribable to the features related to the tooth. MOX and AMOX + ME, non-multi-radicular-tooth, and interdental sites indicated superior clinical gains at the tooth and site levels in GAgP.
Effect of indirect ultrasonic activation of modified bioceramic materials on the bond strength and tubular penetration in root canals
Authors: Yamini Bandaru , Gali Praveen Kumar , Nagesh Bolla , Varri Sujana , Garlapati Roopadevi , Naik K. Madhu Kiran 
Published: June 2021

Background:
To maintain the integrity of the interface between root canal filling and radicular dentin an ideal endodontic biomaterial should have good adhesion. This study was aimed to evaluate the bond strength and tubular penetration of modified bioceramic materials by indirect ultrasonic activation.

Materials and Methods:
In the present in vitro experimental study, 120 coronal root slices of 2 mm were prepared from mandibular premolars and randomly divided into six groups (n = 20) in accordance to placement techniques: Group I: Nano Biodentine-manual, Group II: CaCl2 modified ProRootMTA-manual (MM), Group III: Biodentine-manual, Group IV: Nano Biodentine: Ultrasonic, Group V: CaCl2 modified ProRootMTA-ultrasonic, and Group VI: Biodentine-ultrasonic (BDU). The samples were kept in humidifier for 4 days at 37°C and push out bond strength, sealer penetration were evaluated using an universal testing machine and confocal laser scanning microscope respectively. Data were subjected to statistical analysis using SPSS software by using One-way ANOVA for overall significance and Tukey's multiple post hoc test for intergroup comparison (P < 0.05).

Results:
Highest push out bond strength and greater tubular penetration were observed with Group VI (BDU), while the lowest bond strength and tubular penetration were associated with Group II (MM).

Conclusion:
Within the limitations of current study it was observed that Biodentine with indirect ultrasonic activation has resulted in highest pushout bond strength among all the study groups.
Evaluation of periostin levels in gingival crevicular fluid in association between coronary heart disease and chronic periodontitis
Authors: Rezaei Babak , Bayani Mojtaba , Anvari Mehdi , Vahed Pedram 
Published: June 2021

Background:
Periostin is a protein, which is essential for periodontal tissue integrity, development and maturity. The aim of this study was to evaluate the role of gingival crevicular fluid (GCF) periostin levels in the association between coronary heart disease (CHD) and chronic periodontitis (CP).

Materials and Methods:
This matched case–control study was conducted on 116 participants. The participants were matched for age, gender, and body mass index and divided into four groups as follows: (1) 29 patients with CHD and sever CP (CHD-CP), (2) 29 patients with CHD and without CP (CHD-H), (3) 29 patients without CHD and with sever CP (H-CP), and (4) 29 healthy participants (H-H). The GCF periostin was collected and evaluated using the enzyme-linked immunosorbent assay (ELASA). Finally, the data were analyzed by analysis of variance using the stata software. Significance was assigned at P < 0.05.

Results:
The results showed that there was a significant difference in the GCF periostin levels in the four groups (P < 0.05). Moreover, according to the results of the Bonferroni's test, differences in the mean periostin levels were significant (P < 0.001) between CHD-CP and CHD-H, CHD-CP and H-CP, CHD-CP and H-H, CHD-H and H-H, and also between H-CP and H-H.

Conclusion:
The periostin levels reduced in the CHD patients, especially in the CHD-CP group. The findings reveal a probable role of periostin in the association between CHD and CP.
Lung cancer in the older population: Interactive effects of angiotensin converting enzyme gene polymorphism (rs 4340 ID) and tobacco addiction in risk assessment
Authors: Banerjee Joyita , Gupta Abhishek , Agnihotri Vertica , Pradhan Rashmita , Kandel Ramesh , Upadhyay Ashish D , Dwivedi Sadanand , Kumar Lalit , Dey Sharmistha , Dey Aparajit B 
Published: June 2021

Background:
rs4340ID polymorphism of angiotensin-converting enzyme (ACE) correlates with serum ACE levels in many known cancers. This study analyzed ACE rs4340 ID polymorphism in lung cancer (LC) in older patients of North India and correlated it with addiction status.

Methods:
The study enrolled all subjects aged 60 years and above with 154 LC and 205 healthy controls. Genotyping was done by polymerase chain reaction (PCR) and validated by sequencing of 10% of the sample. Statistical analysis was done by SPSS Statistics 21.

Results:
Genotype II was observed to have a significant 2.21-fold increased risk of LC as compared to the DD genotype and 3.43-folds enhanced risk with interaction of I allele with tobacco consumption habits as compared to D allele in LC was seen.

Conclusion:
The risk of LC was higher with II genotype as compared to DD genotype. Interactive effect showed that I allele with tobacco habits may increase the risk of LC.
Referral mechanism and beneficiary adherence in cervical cancer screening program in Tiruchirappalli district, Tamil Nadu state, India, 2012–2015
Authors: Viswanathan Vidhya , Ganeshkumar Parasuraman , Selvam Jerard M , Selvavinayagam TS 
Published: June 2021

Background:
A screening program for cervical cancer was established in 2011 in Tamil Nadu. Since the inception of the program, coverage, and dropout of screening has not been analyzed. We conducted a study to describe the referral mechanism in the cervical cancer screening program implemented in Tamil Nadu, to estimate the level of adherence to the referral process by the beneficiaries, and to identify strengths and weaknesses related to the referral mechanism in the program.

Methods:
This descriptive study was conducted during 2015–2016 in the Tiruchirappalli administrative district of Tamil Nadu. All women aged 30 years and above, who were screened in public health facilities, were the participants. Using a structured form, we collected the data maintained in the registers at the district health administration. We estimated the screening coverage, follow-up evaluation, and dropout rates at different stages of the referral mechanism. We used SPSS and Epi Info software for analysis.

Results:
Coverage of cervical cancer screening was 4,838(41.6%). We estimated 4,838(41.6%) of screened positives were lost to follow-up for a colposcopy examination. Biopsy samples were obtained from 3425(84%) of those who required a biopsy. Cervical cancer was diagnosed in 159(4.6%) and precancerous lesions in 528(15.4%) women.

Conclusion:
More than half of the target population was screened in public health facilities. The dropout rate was less than half of those screened at the colposcopy evaluation level. Major pitfalls of the program were human resource issues at referral centers and poor maintenance of meaningful data.
Rare sites of giant cell tumor
Authors: Kumar Indrajeet , Ahmed Wasim , Kumar Rahul , Kumar Sanjeet , Kashyap Nishant , Kumar Santosh , Kumar Manish 
Published: June 2021

Introduction:
Giant cell tumor (GCT) is a primary benign neoplasm of the bone. It accounts for 5% of all skeletal tumors. It usually originated from the long bones. It usually arises in the metaphyseal-epiphyseal area of the long bones. We report some cases of GCT at rare sites. These are clavicle, phalanx, head of fibula, distal end of the ulna, and extensor tendon sheath of the hand.

Materials and Methods:
All cases were investigated and managed in the Department of Orthopedics and Surgical Oncology, IGIMS, Patna, India, between March 2014 and June 2019. We surgically managed eight rare cases (5 male and 3 female) of GCT. Patients were followed up for minimum 1 year.

Discussion:
GCT represents about 3%–5% of all bone tumors and 21% of benign bone tumors. It is most commonly seen in early adulthood, with a peak incidence in the third decade and with a slight female preponderance; it is usually seen in the skeletally mature patient.

Conclusion:
GCT s of bone at rare sites present a challenge in both diagnosis and treatment because there is very few literature about them. Our study on this tumor at rare sites will throw a new insight into the proper management.
Variations in mineralogy of dust in an ice core obtained from northwestern Greenland over the past 100 years
Authors: Nagatsuka Naoko , Goto-Azuma Kumiko , Tsushima Akane , Fujita Koji , Matoba Sumito , Onuma Yukihiko , Dallmayr Remi , Kadota Moe , Hirabayashi Motohiro , Ogata Jun , Ogawa-Tsukagawa Yoshimi , Kitamura Kyotaro , Minowa Masahiro , Komuro Yuki , Motoyama Hideaki , Aoki Teruo 
Published: June 2021

Abstract. Our study is the first to demonstrate a
high-temporal-resolution record of mineral composition in a Greenland ice
core over the past 100 years. To reconstruct past variations in the sources
and transportation processes of mineral dust in northwestern Greenland, we
analysed the morphology and mineralogical composition of dust in the SIGMA-D
ice core from 1915 to 2013 using scanning electron microscopy (SEM) and
energy-dispersive X-ray spectroscopy (EDS). The results revealed that the
ice core dust consisted mainly of silicate minerals and that the composition
varied substantially on multi-decadal and inter-decadal scales, suggesting
that the ice core minerals originated from different geological sources in
different periods during the past 100 years. The multi-decadal variation
trend differed among mineral types. Kaolinite, which generally formed in
warm and humid climatic zones, was abundant in colder periods (1950–2004),
whereas mica, chlorite, feldspars, mafic minerals, and quartz, which
formed in arid, high-latitude, and local areas, were abundant in warmer
periods (1915–1949 and 2005–2013). Comparison to Greenland surface
temperature records indicates that multi-decadal variation in the relative
abundance of these minerals was likely affected by local temperature changes
in Greenland. Trajectory analysis shows that the minerals were transported
mainly from the western coast of Greenland in the two warming periods, which
was likely due to an increase in dust sourced from local ice-free areas as a
result of shorter snow/ice cover duration in the Greenland coastal region
during the melt season caused by recent warming. Meanwhile, ancient deposits
in northern Canada, which were formed in past warmer climates, seem to be the
best candidate during the colder period (1950–2004). Our results suggest
that SEM–EDS analysis can detect variations in ice core dust sources during
recent periods of low dust concentration.
PENGEMBANGAN E-MODUL BERORIENTASI HIGHER ORDER THINKING SKILLS (HOTS) PADA PELAJARAN ILMU PENGETAHUAN ALAM (IPA) KELAS VI SEKOLAH DASAR
Authors: Hakiki Muhammad , Fadli Radinal , Putra Yogi Irdes , Pertiwi Intan Putri 
Published: June 2021

Perkembangan teknologi informasi yang sedemikian pesat dan cepatnya telah membawa dunia memasuki kemajuan yang lebih cepat dari yang pernah dibayangkan sebelumnya. Berkembangnya teknologi dalam bidang informasi dengan mengakses internet dari manapun serta kapanpun. Teknologi internet bukan lagi menjadi kalimat asing. Kata website yang sudah menjadi hal biasa, karena sebagian besar fungsinya untuk penyampaian informasi dari berbagai belahan dunia. Salah satu pemanfaatan TI sebagai bentuk sistem informasi adalah manajemen sekolah. Sistem yang dirancang adalah sistem informasi manajemen berbasis sekolah SMA N 1 Muara Bungo. Perancangan Sistem ini menggunakan metode analisa sistem, analisa data, desain sistem yang menggunakan bahasa pemodelan Data Flow Diagram (DFD), coding program menggunakan bahasa Pemograman Hypertext Processor (PHP), tempat penyimpanan data menggunakan MySQL. Tahap perancangan diakhiri dengan testing program sehingga menciptakan sebuah Sistem Informasi Manajemen Berbasis Sekolah SMA N 1 Muara Bungo menggunakan Web. Dari sistem yang diciptakan dapat menghasilkan Informasi berupa (jadwal, modul,dan manajemen kelas) yang dapat di akses dengan website.
White Privilege
Authors: Golden Kristen Brown 
Published: June 2021

ABSTRACT
Through an appraisal of neuroscience viewpoints on nonconscious mind with respect to white racial bias, this article shows how Freud's philosophical approach to unconscious mentality assists insights into white privilege and complements the model neuroscience provides. The article addresses four areas: Freud's concept of displaced affect, a link between American white people's self-reported egalitarianism and suppressed prejudice, how studies linking automatic race bias with the amygdala correlate nonconscious race-bias with fear response, and how race bias develops from two brain bases involving conscious and nonconscious processes. This article concludes that white individuals will be better positioned to embrace a principle of social fairness if widespread racism, racial bias and their psychic denial by whites, are made clearer to people. Combining a Freud-informed and experimentally empirical approach can help.
Maternal Smoking Status Assessed by Breath Carbon Monoxide Measurements. Association with Fetal Growth and Nicotine Withdrawal Syndrome in Newborns
Authors: Kayemba-Kay's S. , Lambert L. , Hindmarsh P. 
Published: June 2021

Background: Maternal smoking during pregnancy is a recognized public health hazard with ill effects on fetal development. Whether infants exposed to tobacco smoke in-utero present with nicotine withdrawal syndrome (NWS) is debated
Aim: To evaluate maternal smoking status by measures of breath CO and analyze its association with fetal growth and Nicotine withdrawal syndrome in newborns.
Methods: Full-term infants were divided into smokers and control groups. Infants' birth parameters correlated with maternal smoking status, neonates’ neuro-behavior assessed during the first 72 hours of life by the Finnegan score.
Results: 29 mother-infant pairs were recruited [11 (4M) smokers' group; 18 (8M) control group]. Smokers were younger (27.2 years versus 29.4 years in the control group, NS), unmarried (P < 0.001), from low socio-economic classes (P < 0.001), and less educated (P < 0.001). Infants born to smokers were lighter in comparison to controls (P < 0.05), the difference in mean BW was more marked in boys (P<0.001). Mean infant BW was also inversely correlated with maternal breath CO: 3213 g (< 5 PPM group), 3185 g (6 - 10 PPM group), and 3176 g (11 - 20 PPM group) (r = 0.952). Assertion of reduction in the smoking habit during gestation was discordant with measured breath CO in smokers, meaning most smokers did not reduce their tobacco consumption substantially. NWS was difficult to ascertain with the Finnegan score, but infants born to smokers presented with symptoms such as irritability, tremors, increased spontaneous Moro's reflex, and poor sleep. They also presented often signs that have the highest scoring items.
Conclusion: Measures of breath CO are reliable in evaluating fetal effects of maternal smoking during gestation. Infants born to smokers present signs in favor of NWS lasting up to 72 hours. Babies require only nursing, no medication is necessary.
Performance Evaluation of 780 Wp Rooftop Solar PV Power Backup System in Western Kenya
Authors: Cheruiyot Wilkins K. , Tonui Joel K. , Limo Samuel C. 
Published: June 2021

Aim: This study aimed to carry out performance analysis of a 780 Wp PV power backup system installed at a learning institution in Western.
Study design: To achieve this goal, site solar radiation received, ambient temperatures, dc current and dc voltages were measured in order to carry out performance evaluation of the PV backup system.
Place and Duration of Study: Department of electronics and electrical, Kaiboi Technical Training Institute in Nandi County, western Kenya was studied, between January 2020 and December 2020.
Methodology: Performance of any PV system depends on the operating conditions (solar radiation, ambient/module temperature, etc.) available at the site (geolocation dependent), installation (tilt and orientation) of the arrays, and finally proper system sizing (PV array, battery, BOS). In this paper, standard performance parameters reported in literature were utilized to evaluate the performance of the studied PV backup system. The array comprises of four panels interconnected in series/parallel to produce an output power rating of 780 W. A Pyranometer was mounted on the plane of array (POA) to measure solar radiation intercepted by the PV array where daily data were acquired at an interval of five minutes. I-v data were also recorded. Different literature was reviewed to identify the way to do this work.
Results: Based on the performance of the studied PV system, results obtained show that annual effective energy output is 3412.94 kWh, array efficiency range between 11.6% to 14.1% depending on amount of solar radiation, array yield of 4.88 kWh/kW, reference yield of 5.5 kWh/kW, annual average performance ratio of 76.3% and average array capture losses of 0.52 kWh/kW.
Conclusion: It found that the PV backup system need ~5-6 hours to operate at the array’s rated output power, and that the PV backup system performance is adequate with regard to yield and performance ratios.