bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation of cyclic fatigue of rotary endodontic instruments
Authors: Khabadze Z. S. , Ismailov F. R. 
Published: April 2022

Aim. To study the properties and resistance to cyclic loading of nickel-titanium files with a martensitic phase. The use of nickel-titanium instruments is an integral part of the endodontic treatment of root canals. During endodontic treatment, nickel-titanium instruments experience a huge load, which is manifested by fatigue of nickel-titanium instruments, in the form of a fracture.Purpose. To determine the resistance of nickel-titanium files to mechanical, chemical and temperature stress.Materials and methods. A nickel-titanium file with a martensitic S-flexi phase from Geosoft was selected as a study. Cyclic fatigue was determined using a simulation endodontic unit. Photo and video fixation was carried out as a calculation of the revolutions and breakage time of the tool in the process of determining cyclic fatigue. To assess changes in the structure of nickel-titanium instruments with a martensitic phase, electron scanning microscopy and determination of the elemental composition of the alloy were carried out.Results. In the course of the study, tests were carried out to determine the cyclic load, close to the clinical reception. After a series of cyclic load detection tests, S-flexi files showed different resistance to cyclic load. The results of cyclic fatigue are summarized in Table 1.Conclusion. High-quality and safe mechanical treatment of root canals is possible when using nickel-titanium S-flexi files. Due to the high resistance to mechanical, chemical and thermal stress.
Assessment of the antimicrobial efficacy of complex therapy for persistent periodontitis during endodontic retreatment
Authors: Manukian I. A. , Adamchik A. A. , Risovannyi S. I. 
Published: April 2022

Aim. To evaluate the antimicrobial efficacy of endodontic retreatment of patients with destructive forms of persistent periodontitis using a combined approach to disinfection of the root canal system and a hyaluronic acid medication.Materials and methods. Group № 1 – endodontic retreatment with root canal disinfection by Hypochloran-3; group № 2 – the same, but for root canal disinfection, first "Hypochloran-3" was applied, and then photodynamic therapy using a 662 nm diode laser and a photosensitizer "ELOFIT®"; group № 3 – in addition to the manipulations carried out in group № 2, of the "Revident" medication was injected twice in the projection of the apical part of the causative tooth. Antibacterial efficacy was assessed according to the results of microbiological studies of biological samples taken before and 2 weeks after endodontic retreatment. The identification of microorganism colonies was carried out by mass spectrometry.Results. In patients with destructive forms of persistent periodontitis, both before and after root canals disinfection, Enterococcus faecalis ranked the first in terms of the frequency of detection in biological samples, Candida albicans the second, and Veillonella parvula the third. At the same time, before the treatment of root canals, the predominance (more than 80%) of polymicrobial associations with their participation was shown. After root canal treatment, the number of obtained microorganism isolates in groups 1-3 significantly decreased: by 60.0%, 74.3%, and 76.0%. Against this background, the share of strict anaerobes and microaerophiles in groups 1-3 decreased: by 60.6%, 81.3%, and 78.1%. The share of facultative anaerobes also significantly decreased by 59.7%, 79.7%, and 83.8%.Conclusions. Endodontic retreatment of patients with destructive forms of chronic periodontitis using combined disinfection of root canals both without and in combination with a hyaluronic acid medication is accompanied by a statistically significant reduction in species diversity, associations, and content of periodontal pathogenic microbiota.
Keeping the periodontium youthful: truth or myth? Strategy and tactical approaches in periodontology based on preventive, predictive, personalized medicine
Authors: Belenova I. A. , Mitronin V. A. , Sudareva A. V. , Startseva S. V. , Vasilyeva M. S. , Oleinik E. A. 
Published: April 2022

Relevance. The use of osteoplastic materials and hyaluronic acid in periodontology is extremely important for modern dentistry, since the predictive introduction of an osteoinductive drug and / or hyaluronic acid into the treatment protocol will allow simulating a state close to physiological, rejuvenating, and achieving the results of maximum restoration of periodontal structures.Aim. To experimentally confirm the possibility of maintaining the physiological state and rejuvenating the periodontium using osteoplastic materials and / or hyaluronic acid.Materials and methods. During the experiment, the dynamics of reparative osteogenesis in artificially reproduced defects of the jaw bones in rabbits was studied with the use of osteoplastic materials "Klipdent", "Bioplast-dent" or without the use of regeneration stimulants, as well as the morphogenesis of periodontal tissues when using hyaluronic acid. Results: the morphological studies carried out may indicate the acceleration of the regeneration processes in comparison with the normal course for 6-7 days.Conclusions. It has been experimentally proven that the preservation and prolongation of periodontal youth is possible. We consider it appropriate and important in the conditions of modern dentistry, provided that the correct clinical strategy and tactical methods are chosen. In particular, the improvement of the procedure for open curettage of the periodontal pocket by predictively introducing an osteoinductive drug and / or hyaluronic acid into the treatment protocol will significantly increase the effectiveness of therapeutic measures and restore the periodontal condition close to physiological.
Hukum Memberikan Daging Kurban kepada Orang Kafir (Studi Perbandingan antara Mazhab Syāfi’iyyah dan Ḥanābilah)
Authors: Ariesman Ariesman , Asri Asri , Ulum Bahrul 
Published: April 2022

This study aims to find out and understand the law of giving sacrificial meat to disbelievers (comparative study between the Shafi'iyyah and Ḥanābilah sect). This research is a qualitative descriptive type of research that focuses on the study of manuscripts and texts, and uses historical, juridical, normative, and philosophical approaches. The results of the study are as follows: the Syāfi’iyyah and Ḥanābilah sect have different opinions about the law of giving sacrificial meat to disbelievers. Scholars from the Shafi'iyyah sect differ in this opinion. There are four opinions of them: the law is absolutely haram, haram if the sacrifice is an obligatory sacrifice, makrūh if the sacrifice is a voluntary sacrifice, and it is permissible to give sacrificial meat to non-Muslims as long as they are not muḥārib or infidels who are hostile to Islam. Meanwhile, the Ḥanābilah sect agrees that it is permissible to give sacrificial meat to a disbelievers, as long as the disbeliever is not a muḥārib, and the sacrifice is a voluntary sacrifice, not an obligatory sacrifice.
Gimdos rando po cezario pjūvio operacijos storio pokyčiai nėštumo metu – perspektyvusis tyrimas
Authors: Juotkutė Mantilė , Savukynė Eglė 
Published: April 2022

Tikslas ir uždaviniai: Apibūdinti gimdos rando po cezario pjūvio operacijos (CPO) storio pokyčius nėštumo laikotarpiais ir nustatyti kaip rando storis pirmuoju nėštumo trečdaliu gali turėti įtakos viso apatinio gimdos segmento (AGS) bei raumeninio sluoksnio storiui antruoju ir trečiuoju nėštumo trečdaliais.
Tyrimo metodika: Atliktas perspektyvusis tyrimas, kurio metu tirtos pacientės turinčios gimdos randą po vienos ar kelių CPO. Gimdos randui tirti naudotas transvaginalinis ultragarsinis tyrimas (TV UG). 11 – 13 sav. UG prenatalinės patikros metu išmatuotas gimdos randas. Pacientės pagal gimdos rando formą suskirstytos į dvi grupes – turinčios gimdos rando nišą ir tos, kurioms randas sugijęs be nišos. Pagal standartizuotą UG tyrimo metodiką visoms tiriamosioms atliktas viso AGS ir AGS raumens storio matavimas 18 – 20 bei 32 – 35 nėštumo savaitę. Statistinei duomenų analizei naudotas Friedmano ANOVA testas vertinant rando storio pokyčius nėštumo metu ir Mann-Whitney testas lyginant rando pokyčius tarp tiriamųjų grupių su ar be gimdos rando nišos.
Rezultatai: Iš viso į tyrimą įtrauktos 122 tiriamosios. Gimdos rando niša buvo stebima 40,2 % atvejų. Nėštumo eigoje gimdos rando storis reikšmingai plonėjo (p = 0,001). Vidutinis raumens sluoksnio storio plonėjimas tarp pirmojo ir antrojo nėštumo trečdalio buvo 8,9 mm (p<0,001). CPO rando raumens sluoksnio storis pirmuoju nėštumo trečdaliu buvo reikšmingai plonesnis tarp tiriamųjų, turinčių rando nišą lyginant su grupe be rando nišos (p<0,001). AGS raumens storis (p = 0,019) kaip ir visas AGS storis (p = 0,022), reikšmingai suplonėjo tarp antrojo ir trečiojo nėštumo trečdalio tiriamųjų su rando niša grupėje lyginant su grupe be rando nišos.
Išvados: Nustatyta, kad nėštumo metu CPO rando storis kinta. Gimdos rando niša turi reikšmingos įtakos žymesniam gimdos raumeninio sluoksnio suplonėjimui rando srityje tarp antrojo ir trečiojo nėštumo trečdalio.
Veiksniai, turintys įtakos svorio prieaugiui nėštumo laikotarpiu nėščiųjų diabetu sergančioms moterims. Literatūros apžvalga
Authors: Kalakauskaitė Laura , Januškevičiūtė Edvina , Visockienė Žydrūnė 
Published: April 2022

Įvadas. Nėščiųjų diabetas (ND) – tai angliavandenių apykaitos sutrikimas, diagnozuotas nėštumo metu. ND ir perteklinis svorio prieaugis (PSP) sukelia trumpalaikių ir ilgalaikių neigiamų pasekmių motinai ir naujagimiui. Šiuo metu taikomos bendros rekomendacijos svorio prieaugiui nėštumo metu ND sergančiosioms, o rizikos veiksniai PSP nėra vertinami.
Tikslas. Nustatyti pagrindinius rizikos veiksnius (RV) pertekliniam svorio prieaugiui nėštumo metu moterims, sergančioms ND.
Metodai. Į literatūros apžvalgą pasirinkti tyrimai, atitikę įtraukimo kriterijus. Atrinkti tyrimai 2010-2021 m. publikuoti PubMed ir Web of Science duomenų bazėse. Vertinti, kokie RV yra statistiškai reikšmingi PSP nėštumo metu.
Rezultatai. Iš 1457 publikacijų atrinkti 29 tyrimai, analizuojantys 34576 moterų, sergančių ND, duomenis. Iš jų 17 tyrimų nurodė svorio prieaugio pasiskirstymą pagal Medicinos instituto (MI) rekomendacijas: 32,14 proc. moterų priaugo nepakankamai, 33,17 proc. - adekvačiai, 34,63 proc. - per daug svorio. Nustatyti RV PSP: 1) kūno masės indeksas (KMI) iki nėštumo (IN) >25kg/m2 didina riziką 2,48-5,060 karto (3 tyrimai, n=3780), tačiau dalis autorių stebi neigiamą KMI IN ir PSP ryšį (2 tyrimai, n=933, r nuo -0,283 iki -0,49, P<0,01); 2) didesnė alkio glikemija gliukozės tolerancijos mėginio (GTM) metu (6 tyrimai, n=4760); 3) mažesnė GTM glikemija po 1 val. (3 tyrimai, n=3560); 4) didesnis glikuotas hemoglobinas (4 tyrimai, n=3937); 5) insulino terapija arba gydymas gliburidu ar metforminu, lyginant su dieta (p<0,001, p=0,003, p<0,02, p=0,015, p=0,001, 5 tyrimai, n=4993); 6) ND diagnozė po 20 ir 24 nėštumo savaitės (2 tyrimai, n=1765); 7) ND diagnozė iki 12 nėštumo savaitės lėmė mažesnį svorio prieaugį (1 tyrimas, n=4808).
Išvados. Duomenys apie rizikos veiksnių įtaką PSP nėštumo metu ND sergančiosioms nėra vienalyčiai. Daugelyje tyrimų didesnis KMI IN, glikemija GTM metu, insulino terapija ir vėlyva ND diagnostika buvo reikšmingi veiksniai. Rizikos veiksnių vertinimas naudingas siekiant pritaikyti profilaktikos priemones ir išvengti PSP.
Risiko Penyakit Jantung Pada Keluarga Penderita Di Poli Jantung RSUD Dokter Slamet Garut Tahun 2017
Authors: Rosita Siti , Kurniawan Titis , Pebrianti Sandra 
Published: April 2022

Coronary Cardiovascular Disease is still one of the major health problems in the world. Prevention can be done with the introduction of risk factors and early detection. Screening is an effective way to identify risk factors for cardiovascular disease in the first stage, furthermore, the offspring's' (siblings) sufferers of cardiovascular disease is one of the risk factors that need to be noticed. This study is aimed to identify the risk level of cardiovascular disease on the patients’ family undergoing outpatient in polyclinic cardiology dr. SlametGarut Hospital.
This quantitative descriptive study involves the family (siblings / descendants) of coronary cardiovascular disease patients, with a sample of 89 people, the sampling technique used is accidental sampling. The instrument in this study utilized Cardiovascular Jakarta Score consists of 7 questions divided into ≥5 high, 2-4 medium, and -7 to 1 light. Data were analyzed by frequency distribution and final result.
The result showed that almost half of respondents (43.8%) are in medium risk state and few of respondents (29.2%) are in high risk state. This indicated that the proportion of respondents with higher risk is more found in male respondents, aged 60-64 years, has active smoking habit, IMT 26.00-29.99, has no history of DM, TD category of hypertension level 1 and has the habit of less activity.
It can be concluded that most families are at risk for coronary cardiovascular disease ≥10% within the next 10 years. Thus it becomes important that families maintain a healthy lifestyle and it is suggested that the hospital develop the program as an effort to raise awareness related to the risk of coronary cardiovascular disease and the importance of prevention efforts towards people who have families with cardiovascular disease.
Faktor-Faktor Yang Berhubungan Dengan Siklus Menstruasi Pada Remaja Putri Kelas XI di SMAN 3 Cikarang Utara Kabupaten Bekasi Tahun 2019
Authors: Ginting Ade Krisna , Prastiwi Ikha , Iskandar Marini 
Published: April 2022

Background :Based on Yudhya Erry's research in 2016 in Jakarta, the majority of respondentsfound that 68.7% of respondents experienced abnormal menstrual cycles with thin nutritionalstatus and irregular menstrual cycles. Factors affecting the menstrual cycle include menarche,being overweight and underweight and excessive physical activity. The existence of hormonaldisorders in women namely progesterone, estrogen, LH, and FSH are related to nutritionalstatus. Nutritional status has an important role in the menstrual cycle.Method :This study uses analytical research methods with cross-sectional design, with thevariables studied consist of the dependent variable, namely: the menstrual cycle and independent
variables, namely: Menarche, BMI and physical activity. The sampling technique is totalsampling. With a population of 97 XI class XI students in SMAN 3 Cikarang Utara.Result: Based on the results of the Chi Square analysis p value = 0.003, because p <0.05, it canbe concluded that there is a relationship between BMI and the menstrual cycle. Odds Ratio (OR)= 0.251. There is no relationship between menarche and physical activity with the cycle ofteenage girls.It is recommended that young women maintain their nutritional adequacy and schoolsshould improve education about reproductive health issues, especially for young women,especially related to nutritional needs of adolescents by holding counseling and putting upposters, leaflets, and bulletin on the importance of maintaining adequate nutrition in adolescentsand their impact on reproductive health .
Semidetached Mass-transfer Massive Binaries in the Nearby Galaxy M31
Authors: Li F.-X. , Qian S.-B. , Liao W.-P. 
Published: April 2022

Abstract
Semidetached binaries provide a valuable test of the evolutionary models of interacting binaries where the mass is transferring from one component to the other, and the evolutions of both components will be changed. Many results of semidetached binaries have been obtained in the Milky Way, while there are few studies in the Andromeda galaxy (M31). By analyzing the light curves of 12 eclipsing binaries observed by Vilardell et al., we determined the fundamental parameters of these systems using the Wilson and Devinney method. It is discovered that they are semidetached binaries where the less massive components have filled their Roche lobes, while the more massive ones are detached from the lobes. We calculated their times of light minimum for the first time. The primary stars in those semidetached binaries have different mass ratios and fill-out factors and they are good sources to investigate the binary evolution in M31. It is found that the mass ratio is correlated with the fill-out factor of the primary. Systems with higher mass ratios tend to have lower fill-out factors. These results can be explained that the mass transfer from the less massive component to the more massive one. Moreover, the photometric solutions reveal that the secondary components are more evolved than the primary ones indicating that they are formed from originally detached binary systems via a case A mass transfer. These binaries have experienced the mass-reverse evolution and are at the late stage of a case A evolution in the nearby galaxy M31.
Isochronic Evolution and the Radioactive Decay of r-process Nuclei
Authors: Sprouse T. M. , Misch G. Wendell , Mumpower M. R. 
Published: April 2022

Abstract
We report on the creation and application of a novel decay network that uses the latest data from experiment and evaluation. We use the network to simulate the late-time phase of the rapid neutron capture (r) process. In this epoch, the bulk of nuclear reactions, such as radiative capture, have ceased, and nuclear decays are the dominant transmutation channels. We find that the decay from short-lived to long-lived species naturally leads to an isochronic evolution in which nuclei with similar half-lives are populated at the same time. We consider random perturbations along each isobaric chain to initial solar-like r-process compositions to demonstrate the isochronic nature of the late-time phase of the r-process. Our analysis shows that detailed knowledge of the final isotopic composition allows for the prediction of late-time evolution with a high degree of confidence despite uncertainties that exist in astrophysical conditions and the nuclear physics properties of the most neutron-rich nuclei. We provide the time-dependent nuclear composition in the Appendix as supplemental material.
CLEAR: Paschen-β Star Formation Rates and Dust Attenuation of Low-redshift Galaxies
Authors: Cleri Nikko J. , Trump Jonathan R. , Backhaus Bren E. , Momcheva Ivelina , Papovich Casey , Simons Raymond , Weiner Benjamin , Estrada-Carpenter Vicente , Finkelstein Steven L. , Giavalisco Mauro , Ji Zhiyuan , Jung Intae , Matharu Jasleen , Martinez Felix , Sturm Megan R. 
Published: April 2022

Abstract
We use Paschen-β (Paβ; 1282 nm) observations from the Hubble Space Telescope G141 grism to study the star formation and dust-attenuation properties of a sample of 29 low-redshift (z < 0.287) galaxies in the CANDELS Lyα Emission at Reionization survey. We first compare the nebular attenuation from Paβ/Hα with the stellar attenuation inferred from the spectral energy distribution, finding that the galaxies in our sample are consistent with an average ratio of the continuum attenuation to the nebular gas of 0.44, but with a large amount of excess scatter beyond the observational uncertainties. Much of this scatter is linked to a large variation between the nebular dust attenuation as measured by (space-based) Paβ to (ground-based) Hα to that from (ground-based) Hα/Hβ. This implies there are important differences between attenuation measured from grism-based/wide-aperture Paβ fluxes and the ground-based/slit-measured Balmer decrement. We next compare star formation rates (SFRs) from Paβ to those from dust-corrected UV. We perform a survival analysis to infer a census of Paβ emission implied by both detections and nondetections. We find evidence that galaxies with lower stellar mass have more scatter in their ratio of Paβ to attenuation-corrected UV SFRs. When considering our Paβ detection limits, this observation supports the idea that lower-mass galaxies experience “burstier” star formation histories. Together, these results show that Paβ is a valuable tracer of a galaxy’s SFR, probing different timescales of star formation and potentially revealing star formation that is otherwise missed by UV and optical tracers.
Test Particle Energization of Heavy Ions in Magnetohydrodynamic Turbulence
Authors: Pugliese F. , Dmitruk P. 
Published: April 2022

Abstract
In the present work, we study the energization and displacement of heavy ions through the use of test particles interacting with the electromagnetic fields of magnetohydrodynamic (MHD) turbulence. These fields are obtained from pseudospectral direct numerical solutions of the compressible three-dimensional MHD equations with a strong background magnetic field. We find particle energization to be predominantly perpendicular as the ions become heavier (lower charge-to-mass ratio) and that high displacement is detrimental for perpendicular energization. On the other hand, perpendicular displacement is unaffected by the charge-to-mass ratio, which we explain with a simple guide center model. Using Voronoi tessellation along with this model, we analyze preferential concentration and find that particles behave as tracers in the perpendicular plane, clustering in regions with ∇⊥ ·
u

⊥ < 0. These regions also have (∇ ×
E
)
z
< 0, which is optimal for perpendicular energization, thus providing a mechanism to understand precedent results.
TESS Transit Timing of Hundreds of Hot Jupiters
Authors: Ivshina Ekaterina S. , Winn Joshua N. 
Published: April 2022

Abstract
We provide a database of transit times and updated ephemerides for 382 planets based on data from the NASA Transiting Exoplanet Survey Satellite (TESS) and previously reported transit times, which were scraped from the literature in a semiautomated fashion. In total, our database contains 8667 transit-timing measurements for 382 systems. About 240 planets in the catalog are hot Jupiters (i.e., planets with mass >0.3 M
Jup and period <10 days) that have been observed by TESS. The new ephemerides are useful for scheduling follow-up observations and searching for long-term period changes. WASP-12 remains the only system for which a period change is securely detected. We remark on other cases of interest, such as a few systems with suggestive (but not yet convincing) evidence for period changes, and the detection of a second transiting planet in the NGTS-11 system. The compilation of light curves, transit times, ephemerides, and timing residuals are made available online, along with the Python code that generated them (visit https://transit-timing.github.io).
Optical Properties of Cyanoacetylene Ices in the Far- to Near-infrared with Direct Relevance to Titan's Stratospheric Ice Clouds
Authors: Ugelow Melissa S. , Anderson Carrie M. 
Published: April 2022

Abstract
Cyanoacetylene (HC3N) ice has been observed in Titan’s stratosphere by both Voyager 1's InfraRed Interferometer Spectrometer (IRIS) and Cassini's Composite InfraRed Spectrometer (CIRS), and it is likely prevalent in other objects in our solar system and exoplanetary systems as well. While previous experimental studies targeting Titan’s stratospheric clouds have determined the optical properties of HC3N ice in the infrared (IR) spectral range, those thin ice films were formed by annealing processes, which contradicts the formation mechanism of Titan’s stratospheric ice clouds. As a result, optical constants of HC3N ices, experimentally created in a similar manner to the way they are formed in Titan’s stratosphere, are crucial. Here we experimentally measured absorbance spectra of HC3N thin ice films from the near- to far-IR spectral region (50–8000 cm−1; 200–1.25 μm) formed via direct vapor deposition at 30, 50, 70, 90, 110, and 113 K. The corresponding optical constants at all temperatures were also computed, resulting in the largest continuous IR spectral range available for HC3N ice. New tentative peak assignments for spectral features in the near-IR are also reported, thereby further enhancing the inventory of optical constants available for HC3N ice spanning the near- to far-IR spectral range.