bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparative evaluation of bending property and torsional resistance of three nickel–titanium files
Authors: Mundhada Neha N , Makade Chetana S , Shenoi Pratima R 
Published: September 2022

Abstract

Aims:
We aimed to investigate the effect of instrument length on the torsional resistance and bending property of three nickel–titanium files, namely ProTaper Gold (PTG), ProTaper Next (PTN), and HyFlex CM (HCM) using finite element analysis.

Materials and Methods:
Three-dimensional models of each aforementioned system were created using the computer-assisted design (CAD) software SolidWorks® 2016 (Dassault Systèmes, SolidWorks Corp., Concord, MA, U. S.). Then, all models were imported to the ANSYS® Workbench 16 (Canonsburg, PA, U. S.) where the simulation was computed. The boundary conditions used to simulate the behavior of the endodontic instruments were in compliance with the ISO 3630 1 specification standards.

Results:
It was observed that in bending test, HCM model exhibited load of 510.35 MPa with displacement of 6.05 mm, followed by PTG model (465.48 MPa) and 11.21 mm displacement, then PTN file model (440.74 MPa) and 10.30 mm displacement, whereas in torsional test the rigidity curve for HCM file (1.9673 N mm/Radian) lies much below PTG (6.4615 N mm/Radian) which clearly shows that HCM is flexible as compared to PTG and PTN.

Conclusion:
Considering the high flexibility of the HCM file, it can be effectively used in severely curved root canals and PTG and PTN files in moderately curved root canals. It was also recommended that HCM files should not be kept in canals for a longer time because stresses might reach to ultimate level quickly which can cause fracture.
Cumulative Live Birth Rate per Oocyte Aspiration in Artificial Reproduction Technology
Authors: Gunasheela Devika , Ashwini Mahesh , Appaneravanda Lohith Chengappa , Nayak Hita 
Published: September 2022

ABSTRACT

Background:
The association between cumulative live birth rate (CLBR) and oocyte aspiration in the context of maternal age is not well understood in the Indian population.

Aims:
To find the relationship between CLBR and a single oocyte aspiration.

Settings and Design:
This is a retrospective study analysing the data of 1989 women who underwent in vitro fertilisation (IVF) between January 2015 and December 2019, at Gunasheela Surgical and Maternity Hospital, India.

Materials and Methods:
Participants were divided into two groups based on age: ≤35 (group I, n = 1665) and >35 (Group II, n = 324). CLBR per single oocyte aspiration in fresh and subsequent three frozen embryo transfer cycles was estimated.

Statistical Analysis Used:
Logistic regression analysis was used to show the likelihood of pregnancy rate, and CLBR per aspiration after treatment was represented as odd's ratios (OR) with 95% confidence intervals.

Results:
Maximal CLBR for Groups I and II was 81.25% with >25 oocytes and 75% with 16–20 oocytes, respectively. In the fresh ET cycle, maximal pregnancy and live birth rates were observed in 6–10 oocytes for Group I (54% and 41%) and in 16–20 oocytes for Group II (75% and 75%). The ORs for pregnancy rate (P = 0.01) and CLBR (P = 0.007) increased with an increase in the number of oocytes retrieved. The ORs for pregnancy rate and CLBR for Group II were 0.68 (P = 0.002) and 0.58 (P = 0.00002), respectively as compared to Group I. Optimal oocytes required to achieve positive IVF outcomes in fresh/frozen ET cycles were low in Group I (6–10 oocytes), but higher in Group II (16–20 oocytes).

Conclusion:
Robust positive relationship was observed between the number of oocytes retrieved and CLBR in women of both age groups.
Laparoscopic Management of Cornual Ectopic Pregnancy
Authors: Kalampokas Emmanouil , Giannis Georgios , Kalampokas Theodoros , Vlahos Nikolaos 
Published: September 2022

ABSTRACT
Interstitial and cornual pregnancies are dangerous, yet rare, forms of ectopic pregnancy, accounting for 2%–4% of all ectopic pregnancies. A 38-year-old female, para 1, gravida 3 had undergone another in vitro fertilisation (IVF) cycle (a salpingectomy performed elsewhere for treating a hydrosalpinx before a previous IVF attempt). Duration of pregnancy is 6 weeks and 5 days, a transvaginal ultrasound revealed an embryo with a positive foetal heartbeat, located in the left cornuum. As no conservative treatment option could be followed, we proceeded with laparoscopic removal of ectopic pregnancy through cornual resection. Since a specific surgical methodology has not yet been established, presenting more step-by-step surgical approaches that can be used in clinical practice is of high importance. We present a step-by-step surgical approach that we have implemented in cases of cornual pregnancy in our department.
Effect of Long-Term Embryo Cryopreservation on Subsequent Frozen Embryo Transfer Outcomes
Authors: Reddy Nallamilli Sujatha , Parimala Chinta , Karuppusami Reka , Mangalraj Ann Margret , Kunjummen Aleyamma Thaiparambil 
Published: September 2022

ABSTRACT

Background:
The duration of cryopreservation of embryos and its effect on the subsequent pregnancy outcomes, when they have been frozen for a longer duration remains a matter of concern. There is a continuous debate among studies comparing different durations of embryo cryopreservation as the results are contradictory.

Aims:
This study aims to find out if long-term cryopreservation of embryos has any effect on pregnancy and perinatal outcomes.

Settings and Design
:Retrospective cohort study was conducted in the department of reproductive medicine and surgery in a university-level teaching hospital.

Materials and Methods:
The study included women who underwent frozen embryo transfer (FET) from autologous in vitro fertilisation between January 2012 and December 2020 with the duration of cryopreservation of more than 5 years as one group and 3–5 years as another group. Pregnancy and perinatal outcomes were analysed.

Statistical Analysis Used:
Regression analysis was performed using logistic regression by entering clinically important variables associated with pregnancy outcome, and the results were expressed as odds ratio with a 95% confidence interval (CI). All statistical analysis was performed with SPSS (version 21.0, IBM, USA).

Results:
A total of 1680 FET cycles were carried out during the study period. Among these, 75 cycles with a duration of 3–5 years and 20 cycles with a duration of more than 5 years were included. Live birth rate (LBR) was 40.8% in the 3–5 years group and 35% in the more than 5 years group. After adjusting for important confounders, the LBR has no significant association in the more than 5 years group (adjusted odds ratio 1.07; 95% CI 0.34–3.32; P = 0.913) compared to the 3–5 years group.

Conclusion:
The duration of cryopreservation of embryos has no statistically significant effect on the pregnancy and perinatal outcomes.
Reserva cognitiva: un enfoque global desde la nutrición y el envejecimiento
Authors: Ramírez Cabrera Mario David 
Published: October 2022

OBJETIVO: describir la conservación de las funciones en edades avanzadas y factores protectores en el entorno del adulto joven y adulto mayor METODO: construcción teórica a partir de reflexiones RESULTADOS: el envejecimiento como idea está vinculado al estereotipo del declive de las funciones físicas, sexuales, cognitivas, emocionales asimismo emergen necesidades sociosanitarias para el manejo, control y atención desde una concepción multidisciplinaria, los efectos de paradigmas activos y pasivos respecto a la reserva cognitiva en contraste con los efectos de la nutrición en adultos mayores suman elementos claves en el desarrollo del envejecimiento activo y disminución del estrés oxidativo. CONCLUSIÓN: factores protectores como la escolaridad, la vigencia social en actividades, la actividad física continuada y la presencia de un entorno estimulante proveen al adulto joven y al adulto mayor de condiciones aptas para un envejecimiento exitoso.
Procesos cognitivos y el aprendizaje en escolares
Authors: Paz Sandoval Ana Cecilia , Sitaví Semeyá Mario Estuardo 
Published: October 2022

OBJETIVO: identificar los procesos cognitivos en el aprendizaje en la etapa escolar METODO: construcción teórica a partir de reflexiones RESULTADOS: los procesos de aprendizaje en el ser humano requieren de componentes sociales, demográficos, biológicos, anatómicos y neurofisiológicos que según la adaptabilidad del ser humano pueda estar sujeto a un sistema formal en los procesos del aprendizaje, en la actualidad a nivel mundial existen diversos métodos, sistemas y niveles del aprendizaje CONCLUSIÓN: el aprendizaje conlleva procesos cognitivos que se desarrollan mucho antes de la concepción, a partir de la información genética que en el neurodesarrollo interviene en el constructo de las funciones ejecutivas y el proceso cognitivo superior que se desarrollaran en la etapa escolar de la educación primaria.
Garantías violentadas ante presentación a los medios de comunicación al detenido
Authors: Sandoval Urrutia Briseida Yuleni 
Published: October 2022

OBJETIVO: establecer la ausencia en que incurre la organización de la Policía Nacional Civil, al exponer de oficio a los sindicados frente a los medios de comunicación social. MÉTODO: mediante la lectura e averiguación de diversos libros sobre la autoría mediata en el Código Penal guatemalteco como de las reglas jurídicas guatemaltecas. RESULTADOS: los medios de comunicación social al instante de que ellos toman la noticia y la ponen a disposición frente a la sociedad perjudicando de enorme forma la moral del individuo a quien en aquel instante sólo se le imputa un delito. La inocencia de dicha persona queda deshonrada ya que la sociedad se comienza a referir al sujeto como el responsable, aunque no se le demostró lo opuesto y un juez competente no ha proclamado o resuelto una condena hacia el individuo. CONCLUSIÓN: para lograr deducir la responsabilidad de una persona, se necesita que se haga un proceso penal completo, a partir de la aprehensión hasta el pronunciamiento de la sentencia, para no vulnerar su presunción de inocencia, el honor, intimidad e imagen del sindicado. La Constitución Política de la República de Guatemala, el Código Procesal Penal y la Ley Orgánica de la Policía Nacional Civil, contemplan la regulación mínima deben tratar a los detenidos.
ASSESSMENT OF VASCULAR RESPONSE OF N-DEAVOUR® DRUG ELUTING STENT VS. XIENCE PRO™ DRUG ELUTING STENT AND MULTILINK VISION BARE METAL STENT IN THE PORCINE CORONARY ARTERY MODEL
Authors: Buzsman Piotr , Najabat Ali Murtaza , Mir Mariam , Mahmood Kayani Azhar 
Published: October 2022

Objectives: The objectives of the study were to evaluate the vascular and tissue response of Pakistani manufactured novel drug eluting stent (called N-DEAVOUR®) on a swine model and compare the results with XIENCE PRO™.
Methodology: A total of 10 animals were used for the study and assigned randomly to each time-point group. The test articles were administered percutaneously and each animal was implanted with one stent in each one of the coronary arteries (3 in total) LCA (left circumflex artery), LAD (left anterior descending coronary artery), and RCA (right coronary artery). Additionally, a second test stent was implanted in some animals (4 in total). QCA (Quantitative Coronary Angiography) technique was used for measurements of the vessel at the target site. OCT (Optical Coherence Tomography) was performed only at follow up time-points which were 30, 90 and 180 days.
Results: At 30 DFU, parameters for N-DEAVOUR® were comparable to those of both control (XIENCE PROTM and VISION) stents. At 90 days follow-up N-DEAVOUR® showed no statistically significant difference in performance for values of lumen area, stent area, area stenosis, and neointimal area against XIENCE PRO™. With reference to stent area, at 90 DFU, N-DEAVOUR® performed better than XIENCE PRO™ (p=0.0056). For neo-intimal area, area stenosis and lumen area, the differences between XIENCE PRO™ and N-DEAVOUR® were non-significant (p=0.13; p=0.9; p=0.086) respectively. These results indicate the positive potential of N-DEAVOUR® to be successfully implanted in clinical settings after necessary randomized clinical trials are executed.
Conclusion: This study proved that the drug eluting stent examined in the present study is both safe and feasible. This study supports that this stent can move forward for human trials.
Sobre el control por moldeo de energía más inyección de amortiguamiento de sistemas mecánicos
Authors: Sandoval Jesús , Kelly Rafael , Santibáñez Víctor 
Published: September 2022

En este trabajo se presenta un tutorial sobre un método de diseño de controladores basado en el moldeo de energía más inyección de amortiguamiento para el control de una clase de sistemas mecánicos completamente actuados y subactuados. Se proporciona un marco teórico unificado que permite resolver diferentes objetivos de control como son: regulación de posición y regulación de velocidad para ambas clases de sistemas y, seguimiento de trayectorias para el caso de sistemas mecánicos completamente actuados. Además, la regulación de energía es formulada como un nuevo objetivo de control para generar oscilaciones controladas en ambas clases de sistemas mecánicos. En adición, se abordan algunos criterios de diseño como compensación de fricción dinámica, exclusión de medición de velocidad e inclusión de la dinámica de actuadores. Finalmente, como ejemplos de aplicación, se presentan recientes resultados publicados en la literatura sobre el diseño de controladores para robots manipuladores accionados por par, un péndulo con rueda inercial y un sistema carro-péndulo.
Graphene: A future science material for water treatment
Authors: Suhail Mohammad 
Published: September 2022

Graphene is showing its versatility continuously by playing the most important role in many fields of science. Water treatment is one of them. In the present scenario, the supply of the safe and pure water has become the main priority. Especially, the most denser and populated areas are demanding of it. Although water treatment is done by applying different methods using different materials, no material showed the results as good as graphene-based materials. The current article deliberates not only the main properties of graphene but also their importance in the treatment of water. Besides, the current review also pronounces the method of graphene separation from the water after use and recycling. Efforts are made to discuss the role of graphene materials in the treatment of water. Henceforward, this article will definitely be very helpful for researchers, academicians, and administration authorities who are planning and developing new strategies for the removal of ionic as well as organic impurities from water.
Translating effective education approaches, such as targeted instruction, across contexts
Authors:   Youth Impact, Angrist Noam , Meager Rachael ,   Youth Impact
Published: September 2022

Multiple randomised trials have proven that targeted educational instruction is an effective approach to addressing learning gaps in low- and middle- income countries. This approach has been tested in multiple rigorous studies, including in Ghana, Kenya and India. This evidence brief reports a formal synthesis of the evidence and assesses the strength and generalisability of the evidence and the factors that drive the largest frontier effects in the literature. This brief also provides practical guidance on elements of targeted instructional approaches that drive the greatest impacts for students, and which are critical for the successful adaptation and scale-up of the approach across contexts.
LUCAS cover photos 2006–2018 over the EU: 874 646 spatially distributed geo-tagged close-up photos with land cover and plant species label
Authors: d'Andrimont Raphaël , Yordanov Momchil , Martinez-Sanchez Laura , Haub Peter , Buck Oliver , Haub Carsten , Eiselt Beatrice , van der Velde Marijn 
Published: September 2022

Abstract. In the European Union, since 2006, a tri-annual survey has sampled land cover and land use information under the Land Use/Cover Area frame Survey (LUCAS). A total of 1 351 293 observations from 651 780 unique locations for 106 variables were collected during the five LUCAS surveys, including a total of 5.4 million landscape photos representing the observer view in the four cardinal directions as well as point photos showing the actual surveyed point. In addition to these previously published photos, additional LUCAS cover photos were recorded, showing a close-up view and thus more detail of the sampled tree, crop and plant species. Between 2006 and 2018, 875 661 LUCAS cover close-up photos were collected, showing the relevant land cover and plant species on the entire photo with the absence of any other elements of the landscape in the frame. Photos containing potential privacy content were identified following a two-stage deep learning anonymisation process, resulting in the removal of 346 photos before publication. This paper summarises the collection of LUCAS cover photos and the filtering for mandatory privacy issues and also provides links to download the data along with the photo metadata and cross-links to the corresponding LUCAS-harmonised survey data. Moreover, after presenting the final public and open dataset consisting of 874 646 photos,
potential applications relying on recent advances in geo-spatial analysis and statistical learning, such as large-scale biodiversity monitoring, are discussed. The data are available on the JRC Open Data Catalogue: http://data.europa.eu/89h/c83906d7-1817-495f-b4ba-f2e4b8859d48 (European Commission, Joint Research Centre, 2022).
The influx of Perpetual Reforms to Cope with Global Challenges in Educational Governance (A Case Study of China-Pakistan Higher Education)
Authors: Tunio Shahnawaz , Unar Narjis , Malik Ghulam Abbas 
Published: September 2022

Reforms in higher education have occurred practically the world over during last three decades, and governance, or higher education as it is, or as it should be integrated, , has turned into a major problem. The governance of institutions of tertiary education is a concern for developing world. These institutions have unrestricted autonomy on the one side, but they are also answerable to the society and government on the other. Against this backdrop, Chinese higher educational governance reform and Pakistani tertiary education arose. The present studies on both countries' higher education changes mostly focus on the reform processes and consider the governments as the driving force behind the reforms, while the Chinese and Pakistani governments' susceptibility to the impact of overseas influences is largely unexplored.. The focus of this article is on the restructuring tactics used by both governments to develop their university systems well-organized and achieve a competitive advantage in the international market. In China, university mergers ought not to be viewed as a simple reform of higher education, however more as a radical shift in governance of tertiary education from “interventionist state model” to “accelerationist state model.” Instead of the nation-state collapsing, as a result of globalization, this article demonstrates how changes in Chinese institutions may not necessarily reduce the state's capabilities, but rather make the Chinese government more proactive in specific areas. Higher education institutions in Pakistan are constantly hounded by the government to supervise their operations, despite the fact that they now have complete autonomy following the 18th amendment, which introduced improvements to Pakistan's constitution by decentralizing power and giving provinces autonomy. It is concluded, based on an examination of the Chinese government’s and Pakistan government’s latest documents and literature which are influenced by international reform concepts and theories which have been institutionalized through the rhetoric of global bodies and the successful experiences of other countries.
Thermal and Fluid Flow Analysis of Shell-and-Tube Heat Exchangers with Smooth and Dimpled Tubes
Authors: Fetuga Ibrahim Ademola , Olakoyejo Olabode Thomas , Shote Adeola S , Sobamowo Gbeminiyi Mike , Oluwatusin Omotayo , Gbegudu Joshua Kolawole 
Published: September 2022

This current work mainly focuses on the enhancement of the heat transfer and fluid flow characteristics of shell-and-tube heat exchangers by incorporating dimples on the smooth or conventional tubes. With the aid of the ANSYS (Fluent) commercial software package, Computational Fluid Dynamics (CFD) simulations under a steady-state condition were conducted on heat exchanger having a single shell and 12 tubes (with or without dimples), 50% baffle cut, 100mm baffle spacing and turbulent flow. The temperature, velocity, and pressure fields at the shell and tube zone in both cases are analyzed. The computational fluid dynamics results of the heat exchanger with dimpled tubes are compared with conventional (smooth) tubes. However, the results show that a shell and tube heat exchanger with dimpled tubes has a higher overall heat transfer coefficient than that of conventional (smooth) tubes. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.
HUBUNGAN PERILAKU CERDIK DENGAN TEKANAN DARAH PESERTA PROLANIS DI PUSKESMAS BOBOTSARI KABUPATEN PURBALINGGA
Authors: Supriyatin Titin , Novitasari Dwi 
Published: October 2022

Hipertensi salah satu penyakit dimana setiap tahun angka kejadiannya semakin bertambah. Program CERDIK serta PATUH menjadi salah satu upaya pemerintah dalam penanganan hipertensi. Tekanan darah terkontrol dengan melakukan perilaku manajeman hipertensi atau perilaku CERDIK dapat mencegah terjadinya komplikasi bahkan kematian akibat hipertensi. Penelitian dilakukan yang tujuannya untuk mengetahui hubungan perilaku CERDIK dengan tekanan darah peserta prolanis di Puskesmas Bobotsari Kabupaten Purbalingga. Penelitian ini menggunakan randangan survei studi korelasi dan cross sectional sebagai pendekatannya. Pasien hipertensi yang tercatat sebagai peserta Prolanis di Puskesmas Bobotsari sebanyak 101 responden dijadikan sebagai responden menggunakan teknik purposive sampling. Alat yang digunakan untuk mendapatkan data menggunakan spignomanometer dan kuisioner perilaku CERDIK. Penelitian ini menunjukkan rata-rata skor perilaku CERDIK adalah 5 dan rata-rata tekanan darah sistolik sebesar 150.58 mmHg dan tekanan darah diastolik sebesar 87.11 mmHg. Uji bivariat dengan person product moment didapatkan nilai p-value hubungan perilaku cerdik dengan tekanan darah sistolik sebesar 0.042 ≤ α serta nilai correlation coefficient -0.203 dan hubungan perilaku cerdik dengan tekanan darah diastolik sebesar 0.046 ≤ α serta nilai correlation coefficient -0.199. Kesimpulannya bahwa perilaku CERDIK berhubungan dengan tekanan darah peserta prolanis dimana semakin meningkatnya perilaku CERDIK maka rendah tekanan darah dengan kekuatan hubungan kurang
Research on Risk Issues under PPP Mode
Authors: Wang Youzhe , Luo Jian , Sun Qunli , Jin Xin 
Published: September 2022

The PPP mode is a new type of project financing model and a new type of partnership between the public sector and the private sector. This paper starts with three aspects of risk analysis: risk identification, risk control and risk allocation, and conducts an in-depth study of the PPP mode. . Using the risk distribution utility model and the risk game model, the risk problems in the operation of the PPP mode are analyzed.