74 research outputs found

    Combinatorial Potential of bait matrix against subterranean termites under lab and field conditions

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    Bait matrix of different treatments were evaluated against two termite species i.e. Odontotermes obesus and Coptotermes heimi both under laboratory and field conditions. Mean wood consumption in laboratory bioassays were investigated for 2, 4 and 6 weeks with maximum consumption was noted after 4 weeks. While, field experiment was conducted for 24 there was greater consumption of the loosely bound bait matrix compared to the tightly bound matrix. However, feeding was comparatively high in combinations with attractants. Overall, treated colonies experienced a 90-95% decrease in population size after 24 weeks of baiting. The queen in the royal chamber of the mound was found dead.

    Comparison of sampling adequacy between OPD based pipelle biopsy and in- patient conventional D&C, presented with abnormal uterine bleeding

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    Objective: To determine agreement on adequacy of sample by pipelle biopsy and conventional dilatation and curettage in patients with abnormal uterine bleeding. Study design: Cross sectional studySetting and Duration of Study: Department of Obstetrics and Gyneacology, Islamic International Medical College Trust, Railway Hospital Rawalpindi. Study was carried out over a period of six months (11-07-2012 to 14-01-2013). Patients and Methods: 84 patients presented with abnormal uterine bleeding age 45 years and older, attended Gynecology department of Railway Hospital Rawalpindi. Who qualified the inclusion criteria were enrolled in this study by non-probability consecutive sampling technique. The diagnostic intervention for endometrial sampling was by pipelle device and by conventional D&C. Both procedures were performed in the OT at the same time.First the pipelle sample was taken and was labeled as “A” then conventional D&C was performed and was labeled as “B”. Both samples were sent to the pathologist, who was blinded as to the method of sample collection for histopathology assessment. Adequacy of the sample was assessed as per operational definition. A data base was made in SPSS version 17. Kappa statistics was applied to assess the agreement. Results: Out of 84 patients, 80 (98.8%) of the patients had adequate sample with Pipelle Biopsy as compared to conventional curettage and dilatation (D & C). We therefore recommend the use of pipelle biopsy as a first line tool for endometrial assessment for our setups instead of D&C. Conclusion: Our study concluded that the Pipelle biopsy is a useful and convenient method to the patients and physicians as ompared to D&C performed in the operating theatre. It is useful in obese and high-risk patients with minimum chances of perforation of uterus due to its soft flexible tip

    Management Dilemma of Concurrent Fundal Submucous Fibroid and Incomplete Uterine Septum in a Patient with Recurrent Pregnancy Loss

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    Background: We describe a patient presenting with recurrent pregnancy loss secondary to concurrent uterine factors. Case: The patient was a 31-year-old white female who presented with recurrent pregnancy loss on two occasions. The couple had a normal work-up for recurrent miscarriages except for a fundal type II submucosal fibroid on transvaginal 3D ultrasound (US) with saline infusion hysterosonogram (SIH). Laparoscopic myomectomy and repair of the myometrial defect was performed. At the conclusion of the procedure, a diagnostic hysteroscopy suggested a possible concurrent incomplete short uterine septum, which could not be corrected for fear of cutting the myomectomy sutures. The patient did not appear for follow up, which led her to have three more miscarriages and one chemical pregnancy. The presence of a short uterine septum was confirmed on SIH with 3D US. The patient underwent hysteroscopic division of the short uterine septum. Results: Postoperative SIH showed a normal uterine cavity, and currently the patient is trying to conceive. Conclusion: Coexistence of a type II submucous fibroid in the fundal region of the uterus and an incomplete uterine septum presents both a diagnostic and management challenge. Surgical management of such coexisting uterine pathology cannot be performed in a single session. (J GYNECOL SURG 29:165)Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140093/1/gyn.2012.0029.pd

    Price and Income Elasticities of Crude Oil Demand: Cross Country Analysis

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    Volatility in crude oil price is the main issue in this era. Great volatility in price of crude oil affects the demand of oil directly and indirectly in developing countries because these countries are oil importing countries especially Pakistan, India and China. Crude oil therefore contributes to and thereby influences the GDP of the country as a source of energy. It is very critical and essential for any country to explore and produce gas to improve energy shortage, for some deliberate importance of gas because natural gas is very clean, cheap and sustainable source to produce energy within a country. This study aimed to analyze the price and income elasticities of crude oil demand in developing countries time series data used from the period of 1971-2014. ADF test was used to check the stationary of variables and it is seem that all variable are not stationary at level. ARDL used for co integration and all variables of the models have long run relation with dependent and explanatory variables. Price and income elasticities of crude oil demand were measured in short and long run for developing countries and it was concluded that long run elasticities of price and income were less inelastic or some cases like China was elastic than short run elasticities of price and income of crude oil demand. It was suggested that oil importer countries should explore the alternatives of oil within a country to fulfill the domestic demand

    Comparison of post-dural puncture headache incidence among patients undergoing spinal anaesthesia for elective caesarean section by using quincke 25-G and 29-G spinal needles

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    Background: Multiple complications including hypotension, nausea, vomiting, urinary retention, transient neurological symptoms and headache have been associated with spinal anaesthesia. Importantly, post dural puncture headache (PDPH) varies with the type and size of spinal needle employed for inducing anaesthesia. Here, we aimed to compare the frequency of PDPH in patients underwent spinal anaesthesia for elective caesarean section using 25-gauge (G) and 29-G Quincke spinal needle.Methods: We designed a randomized control trial at Obstetrics and Gynecology Operation Theatres, Jinnah Hospital, Lahore. A total of 152 patients having age 30.28±8.21 years were enrolled in the study and divided into two groups each comprising of 76 patients. In group 1, spinal anaesthesia was performed using 25-G Quincke spinal needle while in group 2 spinal anaesthesia was administered employing 29-G Quincke spinal needle. A standard dose of 10.5-12.0 mg (1.4-1.6 ml) of 0.75% bupivacaine is infiltrated in subarachnoid space at lumber region L3-L4 or L4-L5 following aseptic measures. The patients were evaluated for PDPH during the follow up period.Results: The previous history of PDPH was observed in 20.39% patients. The comparative study showed that the PDPH was observed in 12 (15.7%) patients in group 1 while the group 2 revealed PDPH in only 2 (2.6%) patients.Conclusions: Thus 29-G spinal needle can be regarded as a better option to reduce PDPH in patients subjected to spinal anaesthesia for elective cesarean in contrast to the use of 25-G Quincke spinal needle

    A Comprehensive Survey on the Cooperation of Fog Computing Paradigm-Based IoT Applications: Layered Architecture, Real-Time Security Issues, and Solutions

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    The Internet of Things (IoT) can enable seamless communication between millions of billions of objects. As IoT applications continue to grow, they face several challenges, including high latency, limited processing and storage capacity, and network failures. To address these stated challenges, the fog computing paradigm has been introduced, purpose is to integrate the cloud computing paradigm with IoT to bring the cloud resources closer to the IoT devices. Thus, it extends the computing, storage, and networking facilities toward the edge of the network. However, data processing and storage occur at the IoT devices themselves in the fog-based IoT network, eliminating the need to transmit the data to the cloud. Further, it also provides a faster response as compared to the cloud. Unfortunately, the characteristics of fog-based IoT networks arise traditional real-time security challenges, which may increase severe concern to the end-users. However, this paper aims to focus on fog-based IoT communication, targeting real-time security challenges. In this paper, we examine the layered architecture of fog-based IoT networks along working of IoT applications operating within the context of the fog computing paradigm. Moreover, we highlight real-time security challenges and explore several existing solutions proposed to tackle these challenges. In the end, we investigate the research challenges that need to be addressed and explore potential future research directions that should be followed by the research community.©2023 The Authors. Published by IEEE. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/fi=vertaisarvioitu|en=peerReviewed

    Ambient-noise Free Generation of Clean Underwater Ship Engine Audios from Hydrophones using Generative Adversarial Networks

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    Generative adversarial networks (GANs) have been extensively used in image domain showing promising results in generating and learning data distributions in the absence of clean data. However, the audio domain, specially underwater acoustics are not yet fully explored in reporting the efficiency and applicability of GANs. We propose an audio GAN framework called ambient noise-free GAN (AN-GAN) to address the underwater acoustic signal denoising problem by removing the background ambient noise. The proposed AN-GAN can learn a clean audio generation with improved signal-to-noise ratio (SNR) given only the noisy samples from the underwater audio dataset. The simulated and real-time data collected from online available source ShipsEar, is used for the analysis and validation purpose. The comparative analysis shows an average percentage improvement of proposed AN-GAN with GAN-based and conventional statistical underwater denoising methods as 6.27% for UWAR-GAN, 227% for Wavelet denoising, 247% for EMD and 65% for Wiener technique
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