554 research outputs found

    Populations of Pear Thrips, \u3ci\u3eTaeniothrips Inconsequens\u3c/i\u3e (Thysanoptera: Thripidae) in Sugar Maple Stands in Vermont: 1989-2005

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    Development of an effective IPM strategy for pear thrips, Taeniothrips inconsequens (Uzel) (Thysanoptera: Thripidae), a pest of sugar maple, Acer saccharum Marshall, demands an understanding of their population fluctuations over time. Pear thrips populations were monitored using a standardized soil sampling method every fall from 1989 – 2005 in 14 counties of Vermont (U.S.). Data from individual sites were combined into north, central and south regions. High numbers of thrips emerged from soil sampled in 1989, 1990, 1993 and 2001, particularly in the north region (Washington, Lamoille, and Franklin counties). The central and south regions had lower pear thrips populations over all years. These results provide, for the first time, fundamental knowledge of pear thrips populations across a wide geographical area of Vermont and will assist in the design of suitable control strategies for pear thrips in the future

    Evaluation of the Practicum at College of Arts and Sciences - University of Nizwa

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    The purpose of this study was to evaluate the practicum at University of Nizwa. The study identified the necessary skills that were acquired by student-teachers attributed through the practicum. It also aimed to identify whether there were significant differences in the evaluation of practicum due to the variable of program. The instrument used in the study consisted of 66 items. The samples of the study consisted of (48) student-teachers who were enrolled in the practicum at the college of arts and science at the University of Nizwa during the academic year 2014/2015. The results revealed that the level of evaluation of practicum was high and positive in general. Flaming of teaching, classroom management, then evaluation and feedback domains were the highest

    Acute respiratory distress syndrome following a biphasic anaphylactic reaction to morphine: a case report and review of the literature

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    Background: Biphasic anaphylactic reaction is a variant of the usual and more commonly seen monophasic anaphylactic reaction. However, recently it has been observed that biphasic anaphylactic reaction may not be as uncommon as previously believed. Furthermore, serious and life-threatening complications such as acute respiratory distress syndrome (ARDS) may ensue that require prompt intervention.Case report: A 16-year-old boy is presented who was scheduled for bilateral orchidopexy under spinal anaesthesia. Anaesthesia was supplemented with i.v. midazolam 5 mg, ketamine 50 mg and morphine 5 mg. About 10 minutes after the administration of morphine, he developed an urticarial rash with mucocutaneous zones, which was promptly treated with i.v. hydrocortisone 100 mg stat.The patient was transferred to the ward after an uneventful surgery and anaesthesia. However, about six hours postoperatively he developed respiratory distress with SpO2 of 20% associated with shock with a blood pressure of 80/40 mmHg, and heart rate of 40 bpm. He was immediately resuscitated with endotracheal intubation, chest compression and i.v. adrenaline and admitted to the ICU. He was managed in the ICU with ventilatory support and inotrope and discharged to the ward after 12 days.Conclusion: A 16-year-old boy who developed a biphasic anaphylactic reaction secondary to morphine administered in the theatre was managed in the ICU and discharged to the ward after 12 days and home thereafter.Keywords: ARDS, biphasic anaphylactic reaction, morphin

    The influence of welding condition on the microstructure of WC hardfacing coating on carbon steel substrate

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    Tungsten carbide (WC) hardfacing coating technique is widely used to improve the performance of carbon steel blade exposed to acidic and abrasive conditions during production. This paper deals with the influence of welding parameters on the microstructure and carbide distribution of WC. WC hardfacing was deposited onto carbon steel by shielded metal arc welding (SMAW). Welding parameters such as welding current, number of weld layers, electrode drying and base material preheat were the focus of this work. Coating hardness, microstructure and elemental composition were analysed in detail. The effects of the welding parameters on WC hardfacing coating microstructure and hardness value were characterized by scanning electron microscope (SEM) and micro-Vickers hardness tester respectively. The larger carbide growth in overall coating region is mainly dictated by high current (200 A), increased number of weld layers (3 layers) and presence of base material preheat due to sufficient heat energy initiating carbide growth. The investigation also revealed that high current affected the growth of smaller carbide particles in matrix region significantly. Meanwhile, number of weld layers and base material preheat influences were seen during hardfacing with lower welding current. The absence of electrode drying led to uniform smaller carbide distribution in matrix region. It was found that increased number of large carbides and uniformly distributed smaller carbides in WC hardfacing deposit increased the hardness value of the coating

    Integrated approach as sustainable environment technique for managing construction waste : a review

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    The construction industry was reported as a major consumer of natural resources worldwide. Almost 60% of the natural resources consumed by this industry have caused a lot of environmental impacts on humans and the environment. Among the impacts were the disruption of human water sources, changes in the biological ecosystem and disruption of the food supply chain among biological factors. Countries around the world have enforced several laws and regulations. Apart from that, waste management technologies were formulated by government agencies and the world’s researchers were among initiatives to minimise the waste generation rate. Several technologies, such as recycling and recovery technologies were highlighted to be very efficient in minimising the waste accumulation rate. This paper discussed an integrated concept for managing construction waste in a sustainable manner. The integrated approach has adopted the reuse method, central sorting facilities, recycling facilities, thermal treatment facilities and disposal facilities. Implementations of these integrated approaches were able to save the world’s raw materials and natural energy sources as well as reducing the impacts of pollution on the environment

    PENGENDALIAN PERSEDIAAN BAHAN BAKU SINGKONG PADA INDUSTRI RUMAH TANGGA KERIPIK SINGKONG “IXXES” DI KELURAHAN KOLHUA KECAMATAN MAULAFA KOTA KUPANG

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    This research has been conducted in Home Industry “Ixxes” in Kolhua Village, Maulafa Subdistrict, Kupang City from March to April 2020. The objectives of this study are (1) To find out how the Home Industry “Ixxes” in controlling the supply of cassava raw materials, (2) To find out the optimal quantity every time you order cassava raw materials. The research location was determined deliberately on the consideration that Home Industry "Ixxes" has been operating since 2003 until now. The research method used is the case study method. The data collected in the form of primary data and secondary data. The data analyzed is data for 2020. The results of research on the “Ixxes” Home Industry are (1) How to control inventory of cassava raw materials carried out by the Home Industry uses a simple method, namely by estimating the amount of cassava raw material needed in every purchase. Where, the purchase of cassava raw materials is based on previous purchases and is usually done when the raw material supply of cassava has been used up. (2) The optimal quantity for each purchase of cassava raw material is 1,315 kg

    The Power of the Test for the Winsorized Modified Alexander-Govern Test

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    This research examined the USAge of the parametric method in comparing two or more means as independent group test, for instance, the Alexander-Govern (AG) test. The utilization of mean as the determinant for the center of distribution of variance diversity takes place in testing, and the test provides excellence in maintaining the amount of Type I error and giving immense sensitivity for a regular data. Unfortunately, it isineffective on irregular data, leading to the application of trimmed mean upon testing as the determinant for the center of distribution under irregular data for two group condition. However, as the group quantity is more than two, the estimator unsuccessfully provides excellence in maintaining the amount of Type I error. Therefore, an estimator high in effectiveness called the MOM estimator was introduced for the testing as the determinant for the center of distribution. Group quantity in a test does not affect the estimator, but it unsuccessfully providesexcellence in maintaining the amount of Type I error under intense asymmetry and unevenness. The application of Winsorized modified one-step M-estimator (WMOM) upon the Alexander-Govern testing takes place so that it can prevail against its drawbacks under irregular data in the presence of variance diversity, can eliminate the presence of the outside observation and can provide effectiveness for the testing on irregular data. Statistical Analysis Software (SAS) was used for the analysis of the tests. The results show that the AGWMOM test gave the most intense sensitivity under g = 0,5 and h = 0,5, for four group case and g = 0 and h = 0, under six group case, differing from three remaining tests and the sensitivity of the AG testing is said suffices and intense enough

    Productivity, heritability and stability analysis of a Moroccan sugar beet germplasm

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    Received: January 19th, 2021 ; Accepted: March 27th, 2021 ; Published: April 6th 2021 ; Correspondence: [email protected] testing is the second part of maternal recurrent selection scheme adopted by INRA-Morocco for the national sugar beet breeding programme. The objective of this study is sugar beet germplasm productivity, heritability and stability analysis. The studied material concern 18 half-sib families (HSF) preselected initially for their seed production potential. Trials were conducted using randomised complete blocks designs during, 2013/14, 2014/15, 2015/16, 2017/18 campaigns in two experimental fields of INRA-Morocco; Sidi Allal Tazi (34° 30' N, 6° 19' W) and Larache (35° 11’ N, 6° 09’ W). Evaluated parameters concern the vigour, root weight (RW), leaf biomass yield (LBY), and sugar content (Sc). Data analysis by comparative procedures explores different accordance degrees of HSF versus controls. Good vegetative growth was observed, 85.6% closer to the maximal indicated scale level. The RW was significantly influenced by the genotype and reached a maximum of 1.06 kg versus 1.08 kg average recorded by controls. Sugar content recorded mean was 20.97% in HSF versus 21.39% in the controls. Most of HSF revealed mean values close to Z-type variety. Estimated heritability was 0.5 for RW, 0.2 for the LBY, and 0.02 for Sc. Sugar content was influenced by the environment and explained by the AMMI model (73.6%) versus 53.9% and 44.4% for root weight and leaf biomass yield respectively. The AMMI stability values showed F11, F12, F16, and F17 families as the most performing and stable HSF. Results demonstrate the relevance of the maternal recurrent selection scheme of the on-going national breeding programme

    Clinical failure of streptokinase due to an unsuspected high titer of antistreptokinase antibody

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    Neutralization of streptokinase by an unsuspected high titer of antiStreptokinase antibody prevented activation of the fibrinolytic system and induction of a lytic state in a 62 year old man with an acute inferior myocardial infarction. There was no decrease in serum fibrinogen, minimal decrease in serum plasminogen and only a small increase in serum fibrin degradation products after in- travenous administration of 1.5 million units of streptokinase. A high titer of antiStreptokinase antibody, sufficient to neutralize 1.5 million units of streptokinase, was demonstrated by semiquantitative counterelectro-phoresis. There was no clinical evidence of coronary artery reperfusion, and coronary angiography confirmed complete occlusion of the left circumflex artery
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