1,029 research outputs found
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An annotation-free method for evaluating privacy protection techniques in videos
While several privacy protection techniques are pre- sented in the literature, they are not complemented with an established objective evaluation method for their assess- ment and comparison. This paper proposes an annotation- free evaluation method that assesses the two key aspects of privacy protection that are privacy and utility. Unlike some existing methods, the proposed method does not rely on the use of subjective judgements and does not assume a spe- cific target type in the image data. The privacy aspect is quantified as an appearance similarity and the utility aspect is measured as a structural similarity between the original raw image data and the privacy-protected image data. We performed an extensive experimentation using six challeng- ing datasets (including two new ones) to demonstrate the effectiveness of the evaluation method by providing a per- formance comparison of four state-of-the-art privacy pro- tection techniques
Extraocular Muscle Imbalance and Outcomes of Scleral Buckling Surgery for Primary Rhegmatogenous Retinal Detachment
Objective: The objective was to study the muscle imbalance, restrictive motility in unlike gazes and the outcomes of the scleral buckling surgery for rhegmatogenous retinal detachment.
Study design: Prospective follow-up study
Settings and duration: The study was conducted at Al-Shifa Trust Eye Hospital Rawalpindi from Aug 2015 to Jan 2016.
Methodology: The patients were checked prior to surgery and two follow up visits were done afterwards. Thorough history was taken along with full orthoptic assessment and ocular motility in all four main gazes including elevation, depression, adduction and abduction. Vision, type and position of explants, site of detachment, and risk factors of detachment were also observed.
Results: A total of 48 eyes of 46 patients were taken. Mean age of the study participants was 37.16±20.37 years. Horizontal, vertical and combined deviations were observed in study population. Exo deviation was most common deviation among patients. Most reported risk factors of retinal detachment included trauma, pseudophakia, aphakia and myopia. Motility limitations of all four gazes was observed and it was found out that after buckling the squint and restriction is been increased up till two months.
Conclusion: Ocular restriction among the patients was observed over a period of 2 months and it depicted that encircling with sclera buckling elicited an increase in restrictive ocular motility from pre-operative to 1 week and 2 months after surgery
Kangaroo mother care: Opportunities and implications for rural Pakistan
Neonatal mortality comprises 40% of total under-5 mortality, globally. Kangaroo mother care (KMC) is one of the most cost-effective interventions to reduce neonatal mortality. KMC does not require highend equipment, intensive care facilities or technical knowledge. A recent meta-analysis reported that KMC may reduce neonatal mortality in preterm and low birth weight neonates up to 36%. A review of enablers and barriers of KMC suggests that KMC can be integrated in maternal health care system by giving awareness, involving family and giving ownership of the intervention to the community. If supported with minimal incentives it would reduce the cost of health care substantially, reduce patient burden on hospitals by reducing hospital stay in postnatal period. It will reduce financial burden, time strain and help eliminate social taboos regarding preterm and low birth weight neonates. Hospital and community based KMC interventions should be tested in Pakistan
Unethical Practices in Pakistani Construction Industry
Construction Industry plays a substantial role in a country’s national economy, regardless of the level of economic development. It is beyond any doubt that this sector is an important employer of a nation’s workforce as it employs between 2 to 10 percent of the total workforce in most of countries. Same is the case with Pakistani Construction Industry. The industry has never been explored and exploited to its fullest capacity. Unfortunately the industry is seriously infected with corrupt and unethical practices which lay major obstacles towards growth and productivity of the industry. This research has been undertaken with a view to find out the most occurring unethical practices in Pakistan. To achieve this objective, a survey questionnaire was designed and disseminated to the respondents. A total of 150 questionnaires were distributed, out of which total 125 responses were received, which is a good response for this study. The data was analyzed by using Statpro software. The major findings are; lack of training in ethics, corruption and bribery, bid shopping, and fraud and unfair conduct. These can be addressed by evolving codes of ethics, imparting high quality training in ethics and above all setting personal examples by the top management. Keywords: Unethical, Construction, Practices, Pakista
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PETS 2015: datasets and challenge
This paper presents the two datasets (ARENA and P5) and the challenge that form a part of the PETS 2015 workshop. The datasets consist of scenarios recorded by us- ing multiple visual and thermal sensors. The scenarios in ARENA dataset involve different staged activities around a parked vehicle in a parking lot in UK and those in P5 dataset involve different staged activities around the perimeter of a nuclear power plant in Sweden. The scenarios of each dataset are grouped into ‘Normal’, ‘Warning’ and ‘Alarm’ categories. The Challenge specifically includes tasks that account for different steps in a video understanding system: Low-Level Video Analysis (object detection and tracking), Mid-Level Video Analysis (‘atomic’ event detection) and High-Level Video Analysis (‘complex’ event detection). The evaluation methodology used for the Challenge includes well-established measures
5-[(E)-(2-Fluorobenzylidene)amino]-2-hydroxybenzoic acid
In the title compound, C14H10FNO3, the dihedral angle between the two benzene rings is 32.66 (14)°. An S(6) ring motif is formed due to an intramolecular O—H⋯O hydrogen bond between the hydroxy and carbonyl groups. In the crystal, molecules are consolidated into dimers with R
2
2(8) ring motifs by pairs of O—H⋯O hydrogen bonds
2-Hydroxy-5-[(E)-(1H-indol-3-ylmethylidene)azaniumyl]benzoate
The zwitterionic title compound, C16H12N2O3, was obtained as a result of the condensation of 5-aminosalicylic acid and 1H-indole-3-carbaldehyde. The whole molecule is roughly planar: the 4-hydroxyanilinic group and the 1H-indole-3-carbaldehyde moieties are only slightly twisted, making a dihedral angle of 7.77 (11)°, whereas, the carboxylate group makes a dihedral angle of 3.34 (45)° with the parent 4-hydroxyanilinic group. S(6) ring motifs are formed due to intramolecular O—H⋯O hydrogen bonding. In the crystal, intermolecular N—H⋯O and C—H⋯O hydrogen bonds build up pseudo-rings with R
1
2(4), R
2
1(7) and R
2
2(14) ring motifs. These pseudo-dimers are further linked by N—H⋯O hydrogen bonds into a chain extending along [101]. C—H⋯π interactions also occur, along with offset π–π interactions between the anilinic phenyl and the heterocyclic five-membered rings with a centroid–centroid distance of 3.5716 (19) Å
5-[(E)-(5-Bromo-2-hydroxybenzylidene)amino]-1,3,4-thiadiazole-2(3H)-thione
In the title molecule, C9H6BrN3OS2, the dihedral angle between the benzene ring and the five-membered ring is 5.5 (3)°. An intramolecular O—H⋯N hydrogen bond forms an S(6) ring motif. In the crystal, N—H⋯S hydrogen bonds link molecules into centrosymmetric dimers creating R
2
2(8) ring motifs. In addition, there are intermolecular S⋯S [3.430 (2) Å] contacts. The crystal used was a non-merohedral twin with a ratio of 0.113 (3):0.887 (3) for the components
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