Spontaneous subarachnoid haemorrhage due to coarctation of aorta and intraspinal collaterals : a rare presentation

The occurrence of spontaneous subarachnoid haemorrhage (SAH) in association with coarctation of thoracic aorta and absence of intracranial aneurysm is a rare association. In spontaneous SAH, the predominant cause is intracranial aneurysmal rupture. This report describes a case of a 40 year-old male who presented with SAH and was incidentally diagnosed to have coarctation of aorta (CoA) with intraspinal collaterals on further work up. This case demonstrates the importance of detailed evaluation of patients with spontaneous SAH on whom common aetiologies have been ruled out.peer-reviewe

PacTrack: The use of virtual environments in the identification and analysis of the neuronal correlates of fear, anxiety, and approach-avoidance behaviors

Electroencephalography (EEG) is a powerful tool that has proven itself essential in successfully discovering significant neuronal correlates underlying various cognitive and behavioral events, such as the hippocampal theta oscillation in memory and spatial navigation. A large negative deflection in potential has been observed as a critical component in modulating error in information processing, termed the ERN. A similar pattern has been found following positive feedback, though whether an analogous effect occurs in internally recognized success is unknown. Researchers have additionally found evidence that theta and gamma oscillations and their intersections play important roles in regulating general fear and anxiety. In this investigation, we study whether a significant deflection in potential occurs as a result of internally recognized success, as well as whether the neuronal correlates associated with fear and memory extend themselves to approach-avoidance behaviors, by observing scalp EEG in midfrontal cortex while playing Pac-Man, taking advantage of Pac-Man’s various behavioral events and states to simulate the above. We find evidence of the ERN following failure, though no significant evoked potential following similar internally recognized success events is observed. The theta and gamma oscillatory patterns modulating fear and anxiety are ascertained to hold true to novel approach-avoidance contexts, and preliminary evidence detecting a shift in oscillations following learning is marked. While EEG is typically performed in laboratory settings, our study shows the merits of and our increasing capability to gather EEG data in naturalistic environments, informing our ability to decode neuronal mechanisms in more everyday contexts and increasing the ethological validity of our work.Neuroscienc

Demanding ‘backwardness’: a reverse aspiration by dominant communities in India

Maratha Mook (Silent) Morchas are a unique form of collective agitation by a socially dominant but increasingly economically backward community in Maharashtra. This post examines their unique demand to be declared ‘backward’ by the state government to improve their sliding economic status, directly challenging the idea that elite groups do not voluntarily abjure their elite status

PENGARUH PERFORMANCE EXPECTANCY, EFFORT EXPECTANCY, DAN FACILITATING CONDITIONS TERHADAP PENGGUNAAN TEKNIK AUDIT BERBANTUAN KOMPUTER

Penelitian ini bertujuan untuk mendapatkan bukti empiris mengenai Pengaruh Performance Expectancy, Effort Expectancy, Dan Facilitating Conditions Terhadap Penggunaan Teknik Audit Berbantuan Komputer. Faktor faktor yang diuji dalam penelitian ini adalah Performance Expectancy, Effort Expectancy, Dan Facilitating Conditions sebagai variabel independen, sedangkan Penggunaan Teknik Audit Berbantuan Komputer sebagai variabel dependen. Penelitian ini menggunakan data primer dengan sampel auditor yang bekerja pada Kantor Akuntan Publik yang menerapkan Teknik Audit Berbantuan Komputer di Wilayah Jakarta Pusat dan Jakarta Selatan. Dalam penelitian ini digunakan metode purposive sampling dimana didapat 106 responden auditor sebagai sampel. Penelitian ini menggunakan metode regresi linear berganda untuk menguji hipotesis penelitian ini. Dari hasil analisis didapatkan bahwa Performance Expectancy, Dan Facilitating Conditions berpengaruh terhadap Penggunaan Teknik Audit Berbantuan Komputer, sedangkan Effort Expectancy tidak berpengaruh terhadap Penggunaan Teknik Audit Berbantuan Kompute

Exploring the Meaning of Doctoral Completion for African American Females Who Have Attended a Predominantly White Institution

As evidenced by the average doctoral student turnover rate, pursuing a doctorate degree may be exceedingly difficult. African American women (AAW) in particular, tend to face unique challenges in higher education due to their gender and racial identities, yet because of their perceived success in comparison to their Black male counterparts, their doctoral experiences at predominantly White institutions (PWIs) frequently go overlooked. Furthermore, considering the impact that trauma can have on higher education success, it is crucial to better understand the intricate nature of the doctoral experiences of AAW to determine how to further facilitate their success. To add to the existing literature, the present qualitative phenomenological study sought to amplify the doctoral experiences of eight AAW and how they describe the meaning of graduating with a doctoral degree from a PWI. The personal narratives of these Black women were collected via semi-structured interviews and summarized utilizing Interpretative Phenomenological Analysis, guided by the conceptual frameworks of Black Feminist Thought (Collins, 1989) and Critical Race Theory (Delgado & Stefancic, 2001). Study implications, limitations and suggested future directions are also discussed

Study of successive contrasting monsoons (2001-2002) in terms of aerosol variability over a tropical statio Pune, India

The present study suggests that aerosols play a major role in cloud formation and affect significantly the precipitation over a regional scale. The study reveals that there is a high variability of aerosol index during a bad monsoon year 2002, indicating an extension of cycle to more than 100 days from a normal 50 day cycle of absorbing and non-absorbing aerosols over a tropical urban station Pune. Pre-monsoon of 2002 shows a high loading of coarse-mode aerosols (absorbing dust aerosols) which indicate vertical and horizontal temperature variations in turn affecting the seasonal rainfall at a regional scale. Cloud formation highly depends on aerosol concentration, but the activation process is not monotonic. The surface meteorological features help to initiate the cloud process. The surface temperatures were high during the pre-monsoon of 2002 leading to increase of aerosol optical depth as compared to 2001. The effect of surface wind speed, though, complicated to understand, results in low values in 2002 with high aerosol optical depth and vice-versa in 2001

Variations in aerosol optical and microphysical properties during an Indian festival observed with space-borne and ground-based observations

This study analyzes changes in the response of meteorological parameters, aerosol, ozone, and water vapor properties over a tropical urban station in Pune, India, using ground-based and satellite data sets from February 23 to March 4, 2010 covering the Holi festival period. Continuous ground-based measurements of Microprocessor-based Total Ozone Portable Spectrometer (Microtops II) were made. The variations in aerosol optical depth (AOD) showed higher values on March 1, 2010 which coincide with the peak festival time. Using the least squares method, A °ngström exponent (α) is calculated in the spectral interval of 340-1020 nm, along with the coefficient a2 of the second-order polynomial fit to the plot of log AOD versus the log wavelength. The correlation between the coefficient a2 vs. AOD 500 nm is discussed. Results from ground-based Microtops and CIMEL sun-sky radiometer observations are also found to match well with satellite retrievals. The aerosol index (AI) derived from the Ozone Monitoring Instrument (OMI) along with AOD derived from the Moderate-Resolution Imaging Spectrometer (MODIS) indicate positive correlation. This suggests that satellite observations over the region confirm the presence of absorbing aerosols mainly due to bio-mass burning and colored powder spray activities during the festival

Strategi di Pasar Modal Syariah

Capital market is market for longtherm money instrument. Sharia Capital Market is all activities in the capital market that do not conflict with Islamic principles. The Indonesian Islamic capital market is part of the Islamic finance industry which is regulated by the Financial Services Authority (OJK), in particular the directorate of the Islamic capital market. This journal describes the benefits of capital market instruments, risks, and strategies in the capital market

MACHINE LEARNING APPLIED TO SENTINEL-2 AND LANDSAT-8 MULTISPECTRAL AND MEDIUM-RESOLUTION SATELLITE IMAGERY FOR THE DETECTION OF RICE PRODUCTION AREAS IN NGANJUK, EAST JAVA, INDONESIA

Statistics Indonesia (BPS) has been introducing the use of Area Sampling Frame (ASF) surveys from 2018 to estimate rice production areas, although the process continues to suffer from the high costs of human and other resources. To support this type of conventional field survey, a more scalable and inexpensive approach using publicly-available remote sensing data, for example from the Sentinel-2 and Landsat-8 satellites, has been explored. In this research, we compare the performance gain from Sentinel-2 and Landsat-8 images using a multiple composite-index enriched machine learning classifier to detect rice production areas located in Nganjuk, East Java, Indonesia as a case study area. We build a detection model from a set of machine learning classifiers, Decision Tree (CART), Support Vector Machine, Logistic Regression, Ensemble Bagging Methods (Random Forest and Extra Trees), and Ensemble Boosting Methods (AdaBoost and XGBoost). The composite indices consist of the NDVI and EVI for agricultural and forest areas, NDWI for water and cloud, and NDBI, NDTI, and BSI for built-up areas, fallows, and asphalt-based roads. Validated by k-fold cross-validation, Sentinel-2 and Landsat-8 achieved F1-scores of 0.930 and 0.919 respectively at the scale of 30 meters per pixel. Using a 10 meter resolution per pixel for the Sentinel-2 imagery showed an increased F1-score of up to 0.971. Our evaluation shows that the higher spatial resolution imagery of Sentinel-2 achieves a better prediction, not only performance-wise, but also as a better representation of actual conditions

Strategi Mitigasi Risiko Konflik Sosial dalam Pendidikan Islam di Pesantren

This study aims to analyze and develop risk mitigation strategies for social conflict in the context of Islamic education at Al-I'tishoom Islamic Boarding School. Social conflict can affect the educational climate and the welfare of students and teaching staff. Therefore, it is important to identify risk factors for social conflict that exist in Islamic boarding schools and formulate effective strategies to overcome and reduce their negative impacts. This research method involves a case study at Al-I'tishoom Islamic Boarding School, by collecting data through interviews, observation, and analysis of related documents. The results of the study show that several risk factors for social conflict exist in Islamic boarding schools including differences in religious views, cultural differences, and socio-economic differences among students. It is hoped that the results of this research can become a reference for education policy makers and related parties in designing effective strategies for managing and reducing the risk of social conflict in the context of Islamic education at the Al-I'tishoom Islamic Boarding School and similar institutions