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104,998 result(s) for "GEOGRAPHIC PROFILES"
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Energy Poverty: Analysis of Infrastructure and Geographic Factors in Rural Areas of Indonesia
This study aims to analyze the factors that influence the chances of energy poverty in rural areas of Indonesia, with a focus on the role of infrastructure and geographic conditions. The data used comes from the 2018 Village Potential Data Collection (PODES), which covers 3,293 selected villages through purposive sampling techniques. The analytical method applied is binary logistic regression with a quantitative approach, using the maximum likelihood (ML) method for model estimation. The results of the study show that education, health infrastructure, and renewable energy development play a significant role in reducing energy poverty. In addition, the geographical conditions of remote and coastal villages are the main obstacles in the distribution of modern energy. The conclusion of this study emphasizes the need for integrative and sustainable policies, which pay attention to aspects of infrastructure, economy, and geographic characteristics, in order to increase access to clean and sustainable energy in rural areas of Indonesia, especially in the 3T areas. This strategy is expected to support inclusive and sustainable socio-economic development at the village level.
Creep and permeability evolution behavior of red sandstone containing a single fissure under a confining pressure of 30 MPa
The long-term deformation and permeability evolution with time are key issues for geo-engineering applications such as radioactive waste disposal. Rock permeability concurrent with deformation is significantly influenced by cracking. This study investigated the creep-permeability evolution behavior of red sandstone specimens containing a single fissure under a confining pressure of 30 MPa. First, the effects of stress ratio (SR) and fissure dip angle on the creep behavior of rock were investigated. The more loading/unloading cyclic numbers, the larger the irrecoverable axial deformation. The instant elastic strains and visco-elastic strains linearly increased with SR for both the intact and fissured specimens, whereas the instant plastic strains showed different results. The visco-plastic strains nonlinearly increased. For fissured and intact specimens, the creep strains and the steady-state creep rates nonlinearly increased as SR increased. The instantaneous strains, instant elastic strains, and visco-elastic strains slightly varied when the fissure dip angle was less than 45° but notably decreased with increasing fissure dip angle beyond 45°. However, the fissure dip angle had no obvious effects on the plastic and creep strains. Damage ( D ) was defined using the ratio of non-elastic strains to the total strain. D increased approximately linearly with SR, but the fissure dip angle had no obvious influences. Subsequently, the long-term strength (LTS) of the red sandstone was determined using two different methods. The LTS first decreased when the fissure dip angle increased from 0 to 45° but increased with increasing dip angle. The triaxial and creep failure modes were mainly shear along anti-wing cracks for the fissured specimens but shear failure occurred for the intact specimen. Moreover, the permeability of the fissured red sandstone was governed by SR and deformation or time. During the multi-step loading/unloading creep process, the permeability first decreased and then had a sudden rise when tertiary creep occurred.
Assessing geospatial models to explain the occurrence of clandestine graves in Mexico
We present an assessment of several geospatial layers proposed as models for detecting clandestine graves in Mexico. The analyses were based on adapting the classical ROC curves to geospatial data (gROC) using the fraction of the predicted area instead of the false positive rate. Grave locations were obtained for ten Mexican states that represent the most conflicting regions in Mexico, and 30 layers were computed to represent geospatial models for grave detection. The gROC analysis confirmed that the travel time from urban streets to grave locations was the most critical variable for detecting graves, followed by nighttime light brightness and population density, whereas, contrary to the rationale, a previously proposed visibility index is less correlated with grave locations. We were also able to deduce which variables are most relevant in each state and to determine optimal thresholds for the selected variables. [Display omitted] •Delimitation of search areas in 10 states with clandestine graves in Mexico.•30 variables associated with authorities, offenders, victims, and graves were used.•Geospatial ROC curves were used to identify the correlation.•The most significant factors were the travel time and population density.
Addressing human-tiger conflict using socio-ecological information on tolerance and risk
Tigers are critically endangered due to deforestation and persecution. Yet in places, Sumatran tigers ( Panthera tigris sumatrae ) continue to coexist with people, offering insights for managing wildlife elsewhere. Here, we couple spatial models of encounter risk with information on tolerance from 2386 Sumatrans to reveal drivers of human–tiger conflict. Risk of encountering tigers was greater around populated villages that neighboured forest or rivers connecting tiger habitat; geographic profiles refined these predictions to three core areas. People’s tolerance for tigers was related to underlying attitudes, emotions, norms and spiritual beliefs. Combining this information into socio-ecological models yielded predictions of tolerance that were 32 times better than models based on social predictors alone. Pre-emptive intervention based on these socio-ecological predictions could have averted up to 51% of attacks on livestock and people, saving 15 tigers. Our work provides further evidence of the benefits of interdisciplinary research on conservation conflicts. Human-tiger conflict occurs where there is a higher risk of encountering tigers. Here, Struebig et al. use geographic profiling to predict risk of encounters in Sumatra, and show that combining risk measures with social data on tolerance could help prioritise regions for conflict mitigation efforts.
Relationship between Sn elemental background values and regional longevity levels—Data from Yunnan, China
The relationship between the geographic environment and human health has been a long-standing focus of scientific inquiry. Sn as an essential trace element for the human body, play vital roles in individual health and may influence longevity. However, the extent to which the statistical characteristics of population longevity are associated with elemental geochemical background values at a regional scale remains an important question. Based on the geochemical survey data of Yunnan Province and Chinese census data, the article utilizes Arcgis spatial analysis and mathematical statistics to explore the relationship between ω(Sn) and regional longevity level. The results of the study show that: (1) There is a close correlation between ω(Sn) and regional longevity levels. Within Yunnan Province, regions with high ω(Sn) have higher levels of longevity index and Ultra-octogenarian Index. (2) Spearman’s correlation coefficient shows that ω(Sn) is significantly positively (P < 0.01) correlated with both the longevity index and the Ultra-octogenarian Index; Linear regression further reveals that ω(Sn) always has a significant positive influence on the longevity index. For the Ultra-octogenarian Index, although the strength of the influence of ω(Sn) is not as significant as that of the longevity index, its influence on the healthy longevity of the population cannot be ignored. At the county scale in Yunnan Province, there is a significant positive correlation between ω(Sn) and longevity index, which may be related to the exposure of Sn in the natural environmental background into the human body and thus affecting the incidence of cancer, but the biogeochemical cycling mechanism of its association with longevity still needs to be further investigated.
How Does C-V2X Help Autonomous Driving to Avoid Accidents?
Accidents are continuously reported for autonomous driving vehicles including those with advanced sensors installed. Some of accidents are usually caused by bad weather, poor lighting conditions and non-line-of-sight obstacles. Cellular Vehicle-to-Everything (C-V2X) radio technology can significantly improve those weak spots for autonomous driving. This paper describes one of the C-V2X system solutions: Vulnerable Road User Collision Warning (VRUCW) for autonomous driving. The paper provides the system architecture, design logic, network topology, message flow, artificial intelligence (AI) and network security feature. As a reference it also includes a commercial project with its test results.
Modeling of variables related to problematic internet usage and problematic social media usage in adolescents
Depending on technological developments, the use of Internet and social media has become an important component of everyday life. This component showed perhaps its greatest effect on adolescents and their communication patterns. When the characteristics of adolescents’ developmental period and their developmental tasks are taken into account, it is noteworthy that they constitute a significant risk group in terms of problematic Internet use and problematic social media usage. In this framework, it is primarily necessary to examine adolescents’ problematic social media usage, since as said; they are seen as a risk group in terms of Internet usage. Secondly, problematic Internet usage behaviors need to be analyzed and their correlations with various variables need to be revealed. The objective of the present study is to examine the relationship between adolescents’ “problematic social media usage” and “duration of social media usage, social anxiety, self-regulation, academic procrastination, problematic Internet usage”. The study group consists of 451 adolescents, who are 8th grade middle school and 9th, 10th and 11th grade high school students. Relational screening model was used in this study. Data were analyzed using structural equation modeling. Research results showed that there was a significant relationship between “problematic social media usage” and “social anxiety, self-regulation and academic procrastination”. However, neither the duration of social media usage nor the problematic use of the Internet showed a significant relationship with problematic social media usage. Research results were discussed within the context of “the effect of problematic social media usage on individuals themselves and their learning environments”. Suggestions were made accordingly.
Adāb al-mu‘allimīn, de Ibn Sahnūn (capítulos seleccionados)
El tratado lo han editado y revisado cinco investigadores del mundo de la enseñanza: la primera edición, a cargo de Ḥasan Ḥusniy ‘Abd al-Wahhāb, publicada en 1931/1350, constituye la base de las ediciones posteriores (Ibn Saḥnūn, 1931); en 1968/1387, Aḥmad Fū’ād al-Ahwāniy sacó una nueva edición aumentada con notas breves (Fū’ād al-Ahwānī, 1968); otra más, revisada y aumentada con notas esenciales para el entendimiento del texto, fue la de Muḥammad al-‘Arūsiy al-Maṭwiy, de 1972/1391 (Ibn Saḥnūn, 1972); en 1981/1401 salió una cuarta edición anotada profusamente bajo la supervisión de Maḥmūd ‘Abd al-Mawlà (Ibn Saḥnūn, 1981); y la última, hasta la fecha, es la edición anotada y comentada con puntuación modernizada de Āli Ḥamdān al-Gāmidiy de 2009/1430 (al-Gāmidiy, 2009). Así pues, es la edición de Āli Ḥamdān al-Gāmidiy (2009) la que adopté como base para la traducción al español; aunque, sin pretender confundir al lector, también menciono constantemente variantes de las ediciones anteriores, sobre todo de las de Muḥammad al-‘Arūsiy al-Maṭwiy (Ibn Saḥnūn, 1972) y Maḥmūd ‘Abd al-Mawlà (Ibn Saḥnūn, 1981), encaminadas a añadir información adicional sobre referencias histórico-culturales y a explicar diferencias lingüísticas relacionadas con la presencia de algunos términos, enunciados y nombres de la cadena de transmisión insertados en el texto de la primera edición impresa, que difieren tanto del manuscrito de Túnez como del de Rabat. Muḥammad ben Saḥnūn de Abī Ṭāhir, éste de Yaḥyà ben Ḥassān, éste de ‘Abd al-Wāḥid ben Ziyād, éste de ‘Abd al-Raḥmān ben Isḥāq, éste de Al-Nu‘mān ben Sa‘d y éste de ‘Alī ben Abī Ṭālib, el cual relató que el Enviado de Dios había dicho: Mūsà, éste de ‘Abd al-Raḥmān ben Mahdiy, éste de ‘Abd al-Raḥmān ben Budayl, éste de su padre y éste de Anas ben Mālik, el cual señaló que el Enviado de Dios había afirmado:
An allele-resolved nanopore-guided tour of the human placental methylome
The placenta is a temporary organ present during pregnancy that is responsible for coordinating all aspects of pregnancy between the mother and fetus. It has a distinct epigenetic, transcriptomic, and mutational landscape with low levels of methylation, high numbers of transcribed loci, and a high mutational burden relative to somatic tissues. We present this landscape through the application of nanopore sequencing technology to provide a more comprehensive picture of female placental genomics and methylomics along with integrated haplotype-resolved transcriptomic analyses across eight trios. Whole genome sequencing of trios allows robust phasing, permitting comprehensive genome-wide investigation of parent-of-origin methylation and transcription. This enhanced view facilitates identifications of many differentially methylated regions (DMRs), both conserved and differing between individuals, as well as previously unreported imprinted genes including ILDR2 and RASA1 which are potentially important for healthy placental and fetal development. The placenta is a crucial organ required for human pregnancy which has a unique epigenetic and gene expression landscape. Here, the authors have applied nanopore whole genome sequencing technology to provide a comprehensive map of the placental methylome focused on allele-specific effects.
LA LAGUNA DE HERRAMÉLLURI. UN HUMEDAL RENACIDO
Abstract La Rioja Alta had a series of small wetlands, some of which were drained in the 1950s to be used for agricultural purposes, particularly for cereals. [...]was the case of the Madrileña lake (in the town of San Asensio), and the other, perhaps pompously called the 'Herramélluri lake', although its size does not fall into the category of what is hydrographically a lake. Keywords Hetland; Cambó law; wetland; wetland; drying; avifauna; Ramsar convention. Se verían favorecidos los anfibios y las aves acuáticas de superficie, descartándose patos buceadores, somormujos u otras especies que requirieran mayor profundidad de agua por no ser viables.