bluuebunny/crossref_metadata_2025_split huggingface dataset:
Eight years' experience in autologous oocytes vitrification for male factors: efforts to find relevant clinical predictors of oocytes survivability
Authors: Fu Xiao , Liu Xiaojie , Li Jing , Zhang Meng , Jiang Jingjing , Chen Qianqian , Li Mei , Ma Jinlong , Gao Shanshan 
Published: May 2021

Abstract
Objective

The objective of this study was to provides a descriptive analysis of the clinical outcomes achieved in oocyte vitrification in cases of unavailable sperm on oocyte retrieval day, and to find predictors of oocyte survival.
Methods

This retrospective cohort study used data from a university-affiliated reproductive medicine center. There were 321 cycles carried part or all oocytes vitrification due to unavailability of sperm from March 2009 to October 2017. A descriptive analysis of the clinical outcomes including both fresh embryo transfers and cryopreserved embryos transfers was provided. The ability of an individual parameter to forecast oocyte survival per thawing cycle was assessed by a binary logistic regression analysis. The cumulative probability of live birth (CPLB) was estimated by using the K-M method according to the total number of oocytes consumed in consecutive procedures.
Results

The average survival rate was 83.13% (95% CI 81.81–86.35%). High-quality embryo rate decreased significantly (33.33% vs. 53.75%, P < 0.0001) comparing to fresh control oocytes. The live birth rate per warmed-oocyte was 4.3%. Reasons for lack of sperm availability on oocyte retrieval day and serum cholesterol level were found to be associated with oocytes survival rate in present study. The Kaplan–Meier analysis showed no significantly different CPLB between patients ≤ 35 versus > 35 years.
Conclusions

Oocyte vitrification is proved to be an indispensable and effective alternative when lack of available sperm on oocyte retrieval day. Present study provided evidences that the oocytes from infertile population were more likely suffer to vitrification injury. Clinicians need to take this into account when giving suggestions to patients for similar situations. Further studies will be necessary to clarify the correlation between serum sterol lipids levels and human oocyte survivability after vitrification.
Implementation of Extra Efficient Bandwidth Utilization Dynamic Bandwidth Allocation Algorithm to support Differentiated service classes in XGPON
Authors: Thangappan Theresal , Therese Brintha 
Published: May 2021

Abstract
Dynamic Bandwidth Allocation (DBA) algorithm is necessary for the efficient utilization of bandwidth in XG-PON. Most of the existing DBA algorithms have not utilized the unused bandwidth of a queue with other service classes queue. The Efficient Bandwidth Utilization (EBU) uses a Borrow Refund (BR) method in the update operation to use the unused bandwidth between a traffic class queue of which has some flaws in the BR method. The EBU mechanism causes a reduction in the allocation of bandwidth and increases the delay for the next traffic class. This paper presents an Extra Efficient Bandwidth Utilization (EEBU) algorithm, which overcomes the limitations mentioned above with proper polling and scheduling mechanism. The theoretical and simulation results show that EEBU improvements for T-CONT 2 delay are 1% and 10%, and for T-CONT 3 delay are 8% and 22%, and for T-CONT 4 delay by 6% and 4.5% compared to the EBU and Giga PON access network (GIANT) respectively.
A Mindfulness-Based Stress Reduction Program for Anesthesiology Residents Evaluated with Biophysical Markers of Stress and Validated Burnout Assessments
Authors: Cowart Christopher , Lisann-Goldman Lauren , Lin Hung-Mo , Meyer Jerrold , Orlando Barbara , Mahoney Bryan 
Published: May 2021

Abstract
Background: Burnout has negative psychological and physical consequences for physicians in training. Mindfulness-based stress reduction (MBSR) has a promising track record for improving well-being. This study aims to demonstrate biophysical and psychological benefit from the incorporation of MBSR into the curriculum of an urban anesthesiology residency program.Methods: This prospective cohort study compared the effect of a voluntary 18-month (January 2018 – June 2019) biweekly MBSR course to an active control (availability of virtual cognitive behavioral therapy (CBT) curriculum and app-based mindfulness tools). Biometric data (e.g., sleep quantity and quality, physical activity and heart rate variability) from wearable devices; hair cortisol levels, and Maslach Burnout Inventory scores were compared between and within cohorts. Results: Data collection was discontinued at the end of the first year of the study due to poor utilization of the in person MBSR and virtual/ app-based trainings. Of 76 eligible anesthesiology trainees, 38 participated (50% of total eligible). Depersonalization scores were significantly lower in the MSBR group. Emotional exhaustion and depersonalization scores were significantly higher for clinical anesthesia (CA) CA-2 (post-graduate year (PGY)-3) than CA-1 (PGY-2) residents. There were no significant differences between cohorts for biophysical outcomes. Conclusions: The implementation of an in-person MBSR curriculum for anesthesiology residents in an urban setting suffered from low utilization. Depersonalization scores were significantly lower in the MBSR compared to the active control group. Perioperative training programs may find more utility in wellness initiatives that are not reliant on inflexibly scheduled courses that require additional time commitment on the part of trainees.
Perennial Existence of Organochlorine Pesticides in the Soils of Amghara, Kuwait
Authors: Alshemmari Hassan 
Published: May 2021

Abstract
A comprehensive study from the surface soil samples of 14 locations from Amghara, Kuwait were assessed for the investigation organochlorine pesticides (OCPs). Due the high degree of contamination in the environment and the health consequences of OCPs, the assessment of these compounds had a significant concern. There is limited informations regarding the distribution pattern of OCPs in the soil samples of Kuwait. The study comprises 12 OCPs including their isomers. Pesticide residue analysis was done with a gas chromatograph for organochlorine pesticides (OCPs) coupled to a triple quadruple mass spectrometer in electron ionization mode. The total concentration of OCPs were in the range of 209.39 pg/g -7449.18 pg/g with an average value of 1313.04 pg/g. DDT had higher concentrations in soil samples (969.52 pg/g) than the other pesticides, according to the findings. The distribution pattern of OCPs in the Amghara soils revealed their origin as both historical and recent application of pesticides. The impact of soil pH on the distribution of DDTs in Amghara soil samples were also investigated. The study further looked at how residual quantities could be used to determine health risks of both children and adults. Children and adults in all the locations were subject to negligible cancer risk, according to the health risk evaluation. OCP's cancer dangers from ingestion, dermal exposure, and inhalation of soil particles indicated that all stations were in the safe zone.
Mathematical Model Development for Navigation with Indian Constellation (NavIC) L-Band Geo Synchronous Satellite's Direct Signal and Multipath Signals
Authors: Chamoli Vivek , Prakash Rishi , Vidyarthi Anurag 
Published: May 2021

Abstract
NavIC L-band satellite signal that travels from the satellite to the receiver undergoes mainly shadowing and multipath effects. In this research paper, NavIC satellites were observing and analyzing signal efficiency for both the direct signal and multipath signal over the Dehradun area. Two open space data series (Direct signal and Multipath signal) for Dehradun were obtained in this analysis by the satellite receiver. The methodology includes evaluation, testing, and analysis of data in both cases. Based on collected data, a general mathematical model has been developed, describing the signal intensity in the open space context. The both NavIC Mathematical model was validated with the experimental data. The average R 2 and RMSE values developed for the direct signal mathematical model were 0.89 and 1.08% respectively which show a good prediction of NavIC C/N0 value with the developed model. For the multipath mathematical model, four cases have been evaluated. Comparing the graphical view of all four cases for C/No multipath signal concerning raw NavIC C/No multipath signal has been done to select the best mathematical model.
Slow slip-driven seismic signature triggered by water-reservoir impoundment
Authors: Orlecka-Sikora Beata , Rudzinski Lukasz , Lizurek Grzegorz , Olszewska Dorota , Shirzad Taghi 
Published: May 2021

Abstract
One of the most important and widely used renewable energy sources is hydroelectric energy produced via Water Reservoir Impoundment (WRI). WRI can trigger strong earthquakes under favourable geological conditions. Thus, the socio-economic impact of reservoir triggered seismicity is very significant. Although many studies have investigated the relationship between the pore pressure changes due to WRI and the observed seismicity, hydromechanical models that explain the observed processes are rare. Here, we investigate the role of hydromechanical interactions during fault deformation to understand earthquake swarm bursts under pore pressure changes due to WRI. As a natural laboratory, we selected the Song Tranh 2 Reservoir in Vietnam. Because the analysed triggered seismicity has swarm characteristics, our work contributes to the further investigation of the physical mechanisms responsible for earthquake swarms and their relationship to slow slip. We conclude that the small high-frequency seismic swarms accompanying WRI are driven by slow slip along a fault; they occur due to the temperature-controlled frictional fault heterogeneity, and their rate and magnitude depend on the sizes of these heterogeneities. Swarm earthquakes are the effect of slip acceleration on the seismic radiation level. The nucleation fronts expand the nucleation regime and may transition into stronger earthquakes. These results provide insights into the physical mechanisms of seismic processes triggered by WRI, which may have implications for assessing the seismic hazards associated with hydroelectric energy production.
The cultural dynamic of water management: Practical demonstration
Authors: Zheng Xiao Yun 
Published: May 2021

Abstract
Water culture has played an important dynamic role in water management historically, and it remains highly valuable for water management and water sustainability today. Water management was influenced by water related value, ethics, knowledge, norms, social behavior, institutions, etc. The role of water culture in water management could be played out from the local to the national scale. As well as using traditional water culture, it is valuable to encourage water culture dynamics in the water management process. Water culture can be used in policy making, capacity building, social awareness establishment, behavior fostering, engineering construction, etc. Simultaneously, it needs to stimulate more new water cultural elements to meet the demands of water management. This chapter aims to discuss the cultural dynamic mechanism in water management, practical demonstrations of water culture in current water management and how to foster new water culture for sustainable water management.
Urban hydro-technologies in Crete, Greece through the centuries
Authors: Angelakis Andreas N. 
Published: May 2021

Abstract
The history of water supply and wastewater engineering in Crete, Greece dates back more than ca. 5,000 years, to the early Bronze Age. One of most advanced achievements in Minoan palaces and other settlements was the architectural and hydraulic functions of water supply and sewerage systems. Minoan hydro-technologies were diffused to Greek mainland, where more advanced sophisticated hydro-technologies were invented, with a peak during the Classical and Hellenistic periods, when they spread over from Greece to India in east and Egypt in the south. The Roman Empire, which replaced Greek rule in most of this area, inherited the hydro-technologies and further developed them, thereby changing their scale of application. Urban water and waste- and storm-water management in Crete were very little improved in both in principle and in scale, during the Byzantine and Venetian periods; however, those constitute the underpinning of modern achievements in water engineering and management practices. The scope of this chapter is to present the most characteristic examples of ancient hydraulic works and related hydro-technologies and their uses through Cretan civilizations.
Agricultural water management customs in Japan: Adaptive changes, recent trends, and future issues
Authors: Takeda Mari 
Published: May 2021

Abstract
This paper focuses on the customs of community-based irrigation management (CBIM) in Japan, which represent Japanese water culture. There are two aspects to the customs of irrigation canal management: (1) the custom of assigning maintenance work responsibility among stakeholders; and (2) allocation of maintenance workload. These customs have changed over time due to socio-economic changes in rural communities and the physical changes in irrigation. In this sense, adaptive change in water culture at the rule-in-use level may contribute to maintaining CBIM. Depopulation and aging in rural society have a severe influence on CBIM and government policy, which promotes public involvement in agricultural water management. In the future, promotion of public participation may influence water culture and create a sustainable collaborative relationship of irrigation management among stakeholders.
Development of water conservancy irrigation and local social reconstruction: A case study in Putian, Fujian Province, China
Authors: Du Longjiang 
Published: May 2021

Abstract
The Putian Plain is essentially the land created from a coastal swamp with the support of a huge hydraulic system, which means that the relationship between man and water has been decisive for the rise and fall of Putian. With a sophisticated water system, the Putian people created artificial plains from the coastal swamp, by a process similar to land reclamation in the Netherlands. The water system is used to control the water level on the plain, drain seawater, introduce freshwater, and develop the land. Under such a man-and-water relationship, focus is given on the relationship between the hydraulic development and social organization in Putian Plain. In the field investigation, it was found that the development of Putian Plain was based on the construction of awater irrigation system, and the management and distribution of water resources was realized through civil organizations, which created a unique folk ritual alliance and traditional cultural etiquette that helped to reconstruct the social organization and interest space in Putian Plain. It also helped to form a stable social organization structure and achieve a balance between cooperation and conflicts. The farmland water systems formed during the history of Putian not only reflect the development of agricultural productivity, but also reflect the reconstruction of social organization in the production process. It is, however, a typical case study of the relationship between water resources management and social organization.
Temporal and spatial variations of extreme precipitation in the Guangdong-Hong Kong-Macao Greater Bay area from 1961 to 2018
Authors: Zhou Yueying , Luo Zhijian , Li Shenlin , Liu Zufa , Shen Yanpeng , Zhuo Wenshan 
Published: May 2021

AbstractDisasters caused by extreme precipitation under global warming are anticipated to have a strong negative impact on urban construction and social security. In this study, daily grid precipitation datasets of the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) for the period 1961–2018 were extracted to explore the temporal and spatial characteristics of extreme precipitation by using regression analysis, moving average and kriging interpolation. The frequency and intensity indices showed an increasing trend, whereas a decreasing trend was found for the persistence indices, which indicates that GBA tends to slowly become wetter. The mean values of extreme precipitation indices (EPIs) in GBA generally increased from west to east and from north to south. Except for the indices of consecutive wet days and consecutive dry days, other EPIs showed an upward trend in most regions, especially in coastal cities where floods are more likely to occur. Principal component analysis and regression analysis showed that the correlations between the EPIs mostly passed the 0.05 significance test, which suggests that they had a good indicator of extreme precipitation in GBA. This study provides a theoretical basis for extreme precipitation disaster prevention and control within the urban agglomerations of the GBA.
Multivariate analysis of the pressure variation in intermittent water supply systems and the impact on demand satisfaction
Authors: Sánchez-Navarro Jesús Rubén , Sánchez David H. , Navarro-Gómez Carmen J. , Peraza Eduardo Herrera 
Published: May 2021

Abstract
In intermittent drinking water distribution systems, large volumes of the water are wasted due to leaks in the distribution networks. Similarly, user service is not always satisfied in the time required to fill the storage, nor with sufficient pressure. Hence the importance of this study. Measuring the variability of pressure in the distribution network and determining the factors that influence the definition of a sufficient minimum hours of service, is a first step to change to a continuous service 24/7, in order to minimize the volumes of lost water and meet demand. In total, 347 pressure sensors were placed in a network to detect changes in pressure and obtain data for 3 years. This study presents a new approach to determine the operating policy of the operating agency that provides the service intermittently. Two objectives are pursued: pressure variability – to minimize leaks – and define the minimum hours of service. The analysis was performed using multivariate statistical techniques, including principal component analysis, correlation matrix and ANOVAs, to explore the association between objectives. The results obtained show that the pressure distribution has a Gaussian behavior and that the hours of service have a Poisson distribution.
EL DRAMA DE LA RECOMPOSICIO?N FORESTAL EN LAS A?REAS DE RESERVA LEGAL UBICADAS EN LAS PROPIEDADES FAMILIARES FRENTE AL NUEVO CO?DIGO FORESTAL BRASILEN?O
Authors: Catalan Marcos 
Published: May 2021

La reserva legal es un importante instrumento de atribucio?n de densidad a la funcio?n socioambiental de la propiedad agraria. Basados en esa perspectiva y conscientes de la vigencia de un nuevo co?digo forestal en Brasil, este estudio –tejido metodolo?gicamente bajo las influencias de las corrientes post-positivistas del derecho– tiene como objetivo comprobar si es posible para los propietarios y poseedores de pequen?as a?reas de agricultura familiar respetar (o no) las exigencias impuestas por la legislacio?n recientemente aprobada, sin perjuicio de su supervivencia y la de sus familias.
Palabras clave: Agricultura familiar, A?reas de reserva legal, Tutela constitucional del medioambiente, Poli?ticas pu?blicas, Co?digo forestal Brasilen?o.
Abstract
A legal reserve is an important tool for allocating the density of land ownership, based on its social and environmental function. That’s why this paper focuses on an analysis of Brazil’s new Forestry Code. It is analyzed if owners and holders of small areas of family-based agriculture can enforce this new law without harming their own survival and their families’. This research is guided by the essential features of the post-positivist theory of law.
Keywords: Family farming, Legal Reserve areas, Constitutional protection of the environment, Public politics, Brazilian forestry code.
Resumo
A reserva legal e? uma ferramenta importante de atribuic?a?o de densidade a? func?a?o socioambiental da propriedade da terra. Com base nessa perspectiva e consciente da validade de um novo Co?digo Florestal no Brasil, este estudotecido metodologicamente sob a influe?ncia das correntes po?s-positivistas do direitotem como objetivo comprovar se e? possi?vel para os proprieta?rios de pequenas a?reas de agricultura familiar respeitar (ou na?o) as exige?ncias impostas pela legislac?a?o recentemente aprovada, na?o obstante a sua sobrevive?ncia e de suas fami?lias.
Palavras-chave: Agricultura familiar, A?reas de Reserva Legal, Protec?a?o constitucional do meio ambiente, Poli?ticas pu?blicas, Co?digo Florestal Brasileiro.
LOS DEBATES EN EL SENO DE LAS CORTES CONSTITUYENTES DE CA?DIZ EN 1812: EL TEMA COLONIAL PARA CUBA
Authors: Hidalgo Ramírez René Reinier 
Published: May 2021

El centro de la pesquisa esta? dirigido a la Constitucio?n espan?ola de 1812, en especial a los debates que se produjeron en las Cortes Constituyentes respecto al problema colonial. Primeramente se caracteriza la situacio?n de la sociedad cubana desde el punto de vista poli?tico, econo?mico y cultural. En un segundo momento se realiza una valoracio?n de la trascendencia de la Constitucio?n en Cuba, teniendo en cuenta algunas de las propuestas realizadas por los diputados que se plasmaron en los arti?culos. El ana?lisis esta? dirigido a su primer peri?odo de aplicacio?n, se destacan sus implicaciones respecto al problema de la esclavitud y a posibles cambios referidos a la administracio?n colonial, no obstante se resalta que no produjo ningu?n cambio significativo en estos aspectos, aunque si? fue fundamental su impacto en el aspecto poli?tico e ideolo?gico.
Palabras clave: Constitucio?n, Cuba, Problema colonial.
Abstract
This paper focuses on an analysis of the Spanish Constitution of 1812, especially the debates that occurred in the Constituent Assembly regarding the colonial problem. First, Cuban society status is characterized from a political, economic and cultural point of view. Second, the significance of the Constitution in Cuba is assessed, taking into account some of the proposals made by representatives that are reflected in the articles of the Constitution. That’s why it is important to consider its first period of implementation and highlight the issue of slavery and its implications in order to identify possible changes related to colonial administration; however, it is emphasized that there was no significant change in those aspects, although it produced a critical impact in the political and ideological aspects.
Keywords: Constitution, Cuba, Colonial problem.
Resumo
O centro de pesquisa se dirige a? Constituic?a?o Espanhola de 1812, especialmente aos debates que ocorreram nas Cortes Constituintes sobre o problema colonial. Em primeiro lugar a situac?a?o da sociedade cubana e? caracterizada do ponto-de-vista poli?tico, econo?mico e cultural. Em um segundo momento, se efetua uma valorizac?a?o do significado da Constituic?a?o em Cuba tendo em conta algumas das propostas feitas pelos deputados que se refletiram nos artigos. A ana?lise destina-se a seu primeiro peri?odo de aplicac?a?o, destaca suas implicac?o?es com respeito a? questa?o da escravida?o e possi?veis mudanc?as relacionadas com a administrac?a?o colonial, no entanto, destacase que na?o houve mudanc?a significativa nestes aspectos, embora fosse um impacto fundamental no aspecto poli?tico e ideolo?gico.
Palavras-chaves: Constituic?a?o, Cuba, Problema colonial.