Synergistic fillers in polymer concrete : new composites

The objective of this study was to examine the effects of synergistic fillers on underwater construction, burning and mechanical properties of polymer portland cement concrete(PPCC). Fine grains of hydrous calcium sulfate, Trihydrated alumina, Calcium carbonate and fibrous unhydrous calcium sulfate were examined in PPCC. It has been observed that these synergistic filler improves the mechanical property (stress) and reduce the average time of burning of PPCC. With fixed quantity of polymer, the deterioration of PPCC in water increases by replacing the sand with above stated fillers

Initial Environmental Examination for Power Plant in Local Sugar Mill

This research presents the IEE (Initial Environmental Examination) and EIA (Environmental Impact Assessment) for sugar mills as power generation business. The study evaluates the proposed project according to the environmental assessment requirements of the Pakistan Environmental Protection Agency. The study has been conducted using standard environmental assessment methodology with the consultation of national and international environmental guidelines such as World Bank environmental and International Finance Corporation (IFC). The installation of 100 MW cogeneration thermal power plant adjacent to existing sugar mill located in district Muzaffargarh has been considered as a case study.  It has been concluded that the residual impacts of the proposed operation will be of minor significance and careful implementation of the Environmental Management Plan (EMP) will ensure that environmental impacts are managed

Skeletal Traction Followed by Plaster of Paris vs Open Reduction and Internal Fixation – Comparison of the Functional and Radiological Outcome of the Two Treatment Modalities in Schatzker Type V and VI Tibial Fractures

Objective: To compare the functional and radiological outcomes of Schatzker type V and VI tibialfractures for the two currently employed treatment modalities.Methodology: It was a quasi-experimental study conducted at Orthopedics department. Patientswere admitted through ER and OPD of Mayo hospital Lahore over a period of 1 year. Total 84 patientswere included in the study. Patients were divided into two groups. Patients in Group A weremanaged with skeletal traction for 2 weeks followed by plaster of Paris back splint applied for next 2weeks followed by plaster of Paris casting for stabilization of the fracture for another next 4 weeks.Patients in Group B were managed with ORIF by wires, screws or plates. Functional andRadiographic evaluations were performed to assess pain, range of motion weight bearing andfracture union in each follow-up visitResults: In this study functional outcome of patients was significantly better and higher in patientswho were treated with ORIF techniqueConclusion: ORIF is more effective for treating Schatzker type V and VI tibial fracture in terms offunctional and radiological outcome as that skeletal traction followed by plaster of Paris casting.Keywords: Skeletal Traction; ORIF; Schatzker type V; Schatzker type VI; Tibial Fractur

Role of danazol in management of mastalgia: a tertiary care experience from North India

Background: Mastalgia is one of the most common complains, for which women consult their general practitioner. Majority of the patients presented with fear of cancer so patient education and availability of quality radiological and pathological services are crucial in the management of patients with mastalgia. This study is aimed to assess the efficacy of danazol on cyclical and non-cyclical mastalgia.Methods: The study was conducted at Sher-I-Kashmir institute of medical sciences (SKIMS), Srinagar between January 2018 to July 2019. All the patients with mastalgia between 19 to 45 years presenting to surgical OPD were considered eligible for the study. After standard triple assessment, all our patients received 100 mg of danazol twice a day for a period of 3 months. Data was collected and analyzed.Results: All the patients with mastalgia between 19 to 45 years presenting to surgical OPD were considered eligible for the study. 72% of our patients presented with cyclic mastalgias while as 28% had non cyclic symptoms. 89.65% of patients in cyclic group had responded to cap. Danazol 100 mg twice daily and 81.81% had shown improvement in non-cyclic group. 19 of our patients had side effects due to medications.14 of our patients developed recurrence after discontinuation of medication.Conclusions: Danazol is very effective in the management of both cyclical and non-cyclical mastalgias. However, cost of the drug and side effects limits its use. Further studies are needed to examine the long-term effectiveness and sustainability of the effects after stopping the treatment

Causes and Reasons of Insect Decline and the Way Forward

There are lot of reasons and causes of insect decline. The main causes of insect decline is attributed to habitat destruction, land use changes, deforestation, intensive agriculture, urbanization, pollution, climate change, introduction of invasive insect species, application of pesticides, mass trapping of insects using pheromones and light traps, pathological problems on various insects, and introduction of exotic honey bees in new areas that compete with the native bees for resource portioning and other management techniques for pest management, and even not leaving any pest residue for predators and parasitoids for their survival. The use of chemical insecticides against target or non-target organisms is major cause for insect decline. The diseases and decline of the important pollinators is still a mistry for colony collapse disorder. To overcome the cause of insect decline, various conservation techniques to be adopted and augmentation of artificial nesting and feeding structures, use of green pesticides, maintaining the proper pest defender ratio (P:D), policies and reaching to political audience at global level and other factors already discussed in the chapter may be helpful for mitigating the insect decline and especially for the pollinators, a key insect for life

Can Different Salt Formulations Revert the Depressing Effect of Salinity on Maize by Modulating Plant Biochemical Attributes and Activating Stress Regulators through Improved N Supply?

Salinity is a major constraint in improving agricultural productivity due to its adverse impact on various physiological and biochemical attributes of plants, and its effect on reducing nitrogen (N) use efficiency due to ion toxicity. To understand the relationship between sodium chloride (NaCl) and increased N application rates, a pot study was performed in which the ammonical (NH4+) form of N was applied as urea to maize crops at different rates (control, 160, 186, 240, 267, 293, and 320 kg N ha−1) using two salinity levels (control and 10 dS m−1 NaCl). The results indicate that all biochemical and physiological attributes of the maize plant improved with increased concentration of N up to 293 kg ha−1, compared to those in the control treatment. Similarly, the optimal N concentration regulated the activities of antioxidant enzymes, i.e., catalase activity (CAT), peroxidase activity (POD), and superoxide dismutases (SOD), and also increased the N use efficiencies of the maize crop up to 293 kg N ha−1. Overall, our results show that the optimum level of N (293 kg ha−1) improved the salinity tolerance in the maize plant by activating stress coping physiological and biochemical mechanisms. This may have been due to the major role of N in the metabolic activity of plants and N assimilation enzymes activity such as nitrate reductase (NR) and nitrite reductase (NiR)

Code-mixed street address recognition and accent adaptation for voice-activated navigation services

This study presents the development of a real-time application-specific Automatic Speech Recognition (ASR) system for voice-activated navigation services. The system is designed to recognize Urdu-English code-mixed street addresses, which is challenging due to their complex nature and structure, especially in under-resourced languages such as Urdu. Two separate corpora are collected for ASR system development: Unicode Urdu consisting of general Urdu recordings of around 61.82 hours by 144 speakers and Roman Urdu-English code-mixed Addresses of around 16.89 hours by 20 speakers. The Unicode Urdu data is developed to provide acoustic models with general language understanding and code-mixed street addresses to provide code-mixing or switching coverage. The hybrid ASR system employed in this study plays a crucial role in addressing the multifaceted challenges of low-resource settings (only 16.89 hours of task-specific data), especially in the context of Urdu-English code-switching. The study compares various acoustic models, with mixed Time Delay Neural Network and Long Short-Term Memory (TDNN-LSTM) performing best with a Word Error Rate (WER), Character Error Rate (CER), and Sentence Error Rate (SER) of 4.02%, 0.8%, and 15.14% respectively, on random street addresses. In addition to testing street addresses, we performed accent-based and manual decoding testing on the developed ASR system. Results indicate the need to develop and deploy custom ASR systems for better accent adaptation and application-specific coverage. The developed ASR system is integrated into the TPL Mapsa mobile application. It is Pakistan’s first Large Vocabulary Continuous Speech Recognition (LVCSR) real-time system to provide Urdu-based voice-activated navigation services

On smart gaze based annotation of histopathology images for training of deep convolutional neural networks

Unavailability of large training datasets is a bottleneck that needs to be overcome to realize the true potential of deep learning in histopathology applications. Although slide digitization via whole slide imaging scanners has increased the speed of data acquisition, labeling of virtual slides requires a substantial time investment from pathologists. Eye gaze annotations have the potential to speed up the slide labeling process. This work explores the viability and timing comparisons of eye gaze labeling compared to conventional manual labeling for training object detectors. Challenges associated with gaze based labeling and methods to refine the coarse data annotations for subsequent object detection are also discussed. Results demonstrate that gaze tracking based labeling can save valuable pathologist time and delivers good performance when employed for training a deep object detector. Using the task of localization of Keratin Pearls in cases of oral squamous cell carcinoma as a test case, we compare the performance gap between deep object detectors trained using hand-labelled and gaze-labelled data. On average, compared to 'Bounding-box' based hand-labeling, gaze-labeling required 57.6% less time per label and compared to 'Freehand' labeling, gaze-labeling required on average 85% less time per label