110 research outputs found

    فلسطین : تاریخی تناظر میں تحقیقی جائزہ : Palestine: A Research Review in Historical Perspective

    Get PDF
    The ongoing strife between Israel and Palestine has woven a grim narrative of suffering and loss for over seven decades. For 75 years, the blood of Palestinians is being shed with great cruelty. Each day, the Palestinian people endure unimaginable hardships, facing forced migration and enduring the constant threat of losing their homes, their businesses, and the very essence of their identity. Their children, the hope for a brighter future, are subjected to unspeakable horrors, leaving scars that may never heal. Amidst this turmoil, the world remains a silent spectator, turning a blind eye to the egregious violations of human rights in Palestine. Governments falter in their responsibility to address this humanitarian crisis, leaving the fate of an entire populace hanging in the balance. Therefore, it is the need of the hour that the historical status of Palestine

    Biological control of strawberry diseases by Aureobasidium pullulans and sugar beet extract under field conditions

    Get PDF
    Grey mould (caused by Botrytis cinerea) is the most important pathogen underlying high fungicide dependence in strawberry fields. Reliable biocontrol agents (BCAs) with improved efficiency are needed to replace fungicides. The yeast-like beneficial fungus Aureobasidium pullulans (AP-SLU6) has previously exhibited great potential to combat grey mould in greenhouse environments. Here we report results from a two-year full-factorial field trial in a conventional strawberry field, in which we tested two different concentrations of A. pullulans (10(7) CFU/ml and 10(6) CFU/ml) and sugar beet extract (SBE). The results showed that all the field treatments reduced grey mould severity postharvest and increased shelf life of the harvested fruit in both years. The best effect was achieved using the highest conidial concentration of A. pullulans, which also resulted in 53% higher fruit production compared to the control treatment at the end of the season, indicating a plant-growth promoting effect of the BCA. These results reveal that spray applications of these novel BCAs contribute to reliable biocontrol of grey mould, leading to improvement of the shelf life of strawberry sales boxes. These findings suggest that A. pullulans and SBE can contribute to a shift from chemical fungicides to sustainable methods without compromising cropping security

    Are underprivileged and less empowered women deprived of respectful maternity care: Inequities in childbirth experiences in public health facilities in Pakistan

    Get PDF
    Background: Attainment of healthcare in respectful and dignified manner is a fundamental right for every woman regardless of the individual status. However, social exclusion, poor psychosocial support, and demeaning care during childbirth at health facilities are common worldwide, particularly in low- and middle-income countries. We concurrently examined how women with varying socio-demographic characteristics are treated during childbirth, the effect of women\u27s empowerment on mistreatment, and health services factors that contribute to mistreatment in secondary-level public health facilities in Pakistan.Methods: A cross-sectional survey was conducted during August-November 2016 among 783 women who gave birth in six secondary-care public health facilities across four contiguous districts of southern Sindh. Women were recruited in health facilities and later interviewed at home within 42 days of postpartum using a WHO\u27s framework-guided 43-item structured questionnaire. Means, standard deviation, and average were used to describe characteristics of the participants. Multivariable linear regression was applied using Stata 15.1.Results: Women experiencing at least one violation of their right to care by hospital staff during intrapartum care included: ineffective communication (100%); lack of supportive care (99.7%); loss of autonomy (97.5%); failure of meeting professional clinical standards (84.4%); lack of resources (76.3%); verbal abuse (15.2%); physical abuse (14.8%); and discrimination (3.2%). Risk factors of all three dimensions showed significant association with mistreatment: socio-demographic: primigravida and poorer were more mistreated; health services: lesser-education on birth preparedness and postnatal care leads to higher mistreatment; and in terms of women\u27s empowerment: women who were emotionally and physically abused by family, and those with lack of social support and lesser involvement in joint household decision making with husbands are more likely to be mistreated as compared to their counterparts. The magnitude of relationship between all significant risk factors and mistreatment, in the form of β coefficients, ranged from 0.2 to 5.5 with p-values less than 0.05.Conclusion: There are glaring inequalities in terms of the way women are treated during childbirth in public health facilities. Measures of socio-demographic, health services, and women\u27s empowerment showed a significant independent association with mistreatment during childbirth. At the health system level, there is a need for urgent solutions for more inclusive care to ensure that all women are treated with compassion and dignity, complemented by psychosocial support for those who are emotionally disturbed and lack social support

    A featureless approach for object detection and tracking in dynamic environments

    Get PDF
    One of the challenging problems in mobile robotics is mapping a dynamic environment for navigating robots. In order to disambiguate multiple moving obstacles, state-of-art techniques often solve some form of dynamic SLAM (Simultaneous Localization and Mapping) problem. Unfortunately, their higher computational complexity press the need for simpler and more efficient approaches suitable for real-time embedded systems. In this paper, we present a ROS-based efficient algorithm for constructing dynamic maps, which exploits the spatial-temporal locality for detecting and tracking moving objects without relying on prior knowledge of their geometrical features. A two-prong contribution of this work is as follows: first, an efficient scheme for decoding sensory data into an estimated time-varying object boundary that ultimately decides its orientation and trajectory based on the iteratively updated robot Field of View (FoV); second, lower time-complexity of updating the dynamic environment through manipulating spatial-temporal locality available in the object motion profile. Unlike existing approaches, the snapshots of the environment remain constant in the number of moving objects. We validate the efficacy of our algorithm on both V-Rep simulations and real-life experiments with a wide array of dynamic environments. We show that the algorithm accurately detects and tracks objects with a high probability as long as sensor noise is low and the speed of moving objects remains within acceptable limits

    Review of Contemporary Energy Harvesting Techniques and Their Feasibility in Wireless Geophones

    Full text link
    Energy harvesting converts ambient energy to electrical energy providing numerous opportunities to realize wireless sensors. Seismic exploration is a prime avenue to benefit from it as energy harvesting equipped geophones would relieve the burden of cables which account for the biggest chunk of exploration cost and equipment weight. Since numerous energies are abundantly available in seismic fields, these can be harvested to power up geophones. However, due to the random and intermittent nature of the harvested energy, it is important that geophones must be equipped to tap from several energy sources for a stable operation. It may involve some initial installation cost but in the long run, it is cost-effective and beneficial as the sources for energy harvesting are available naturally. Extensive research has been carried out in recent years to harvest energies from various sources. However, there has not been a thorough investigation of utilizing these developments in the seismic context. In this survey, a comprehensive literature review is provided on the research progress in energy harvesting methods suitable for direct adaptation in geophones. Specifically, the focus is on small form factor energy harvesting circuits and systems capable of harvesting energy from wind, sun, vibrations, temperature difference, and radio frequencies. Furthermore, case studies are presented to assess the suitability of the studied energy harvesting methods. Finally, a design of energy harvesting equipped geophone is also proposed

    Internal mammary artery flow in different racial groups of Pakistan

    Get PDF
    Objective: To find out any differences in free flow of internal mammary artery among different ethnic groups.Methods: This observational, cross-sectional study was conducted at the Civil Hospital, Karachi, from January 2013 to December 2015, and comprised patients who underwent coronary artery bypass grafting. The participants were divided into 5 groups, i.e. Sindhi, Muslim migrants from India, Punjabi, Pathan and Balochi patients. Free flow of internal mammary artery was measured immediately after harvesting within a syringe, and its flow was measured in 30 seconds. SPSS 18 was used for data analysis.Results: Of the 158 patients, 44(27.8%) were Sindhi, 33(20.9%) Punjabi, 8(5%) Baloch, 21(13.3%) Pathan and 52(32.9%) were migrants. The overall mean age was 52±8 years and the mean flow was 11.6±9.6ml per 30 seconds. The flow was 9.3±6 ml, 10±8ml, 13±11ml, 17±14ml and 15±13 ml in 30 seconds among migrants, Sindhi, Punjabi, Pathan and Baloch patients, respectively, with significant higher flow in Pathan patients compared to Sindhi and migrant patients (pConclusions: Internal mammary artery flow was higher in Pathan and Baloch patients and low in migrants and Sindhis

    Needle stick injuries among health care workers of public sector tertiary care hospitals of Karachi

    Get PDF
    OBJECTIVE: To estimate the frequency of needle stick injuries (NSI) among health care workers (nurses, student nurses and paramedical staff) in public hospitals of Karachi.STUDY DESIGN: Cross sectional, observational.PLACE AND DURATION OF STUDY: This study was conducted in three public tertiary care hospitals of Karachi, from November 2007 to January 2008.METHODOLOGY: Data was collected by structured interview-based questionnaires in Urdu and English language. Questionnaire was designed to obtain information regarding demography, work experience, hepatitis vaccination status, and occurrence of needle stick injuries with associated factors. Needle stick injury that occurred in the previous month was the defined outcome. Data was entered in Epi Data and analyzed in SPSS version 15.RESULTS: A total of 417 health care workers participated in the study. Mean age of the participants was 24+/-11 years. Estimated proportion of participants with history of at least one time NSI was found in 66%. Around 13% (n=54) had one or more NSI in the previous one month at work and half of them were affected by non-sterile needle. None of them sought medical care. Almost 90% of them were not wearing gloves or taking any other protective measures at the time of injury.CONCLUSION: There can be serious consequences of needle stick injuries in public hospitals as large proportion of injuries involve non-sterile used needles and health care workers do not take appropriate measures of protection
    corecore