scholarly journals Effect of Orange and Cinnamon Oil on the Occurrence and Harmfulness of Thrips tabaci Lind on Onion – Preliminary Results

2016 ◽  
Vol 19 (s1) ◽  
pp. 13-14
Author(s):  
Maria Pobożniak ◽  
Dominika Grabowska ◽  
Marta Olczyk
Keyword(s):  
Research Work ◽  
Thrips Tabaci ◽  
Cinnamomum Zeylanicum ◽  
Cinnamon Oil ◽  
Orange Oil ◽  
Preliminary Results ◽  
The Mean

Abstract The aim of the present research work was to investigate the effect of orange and cinnamon oil on the occurrence and harmfulness of Thrips tabaci Lind on onion. In 2014, the nonchemical treatment was made with Prev-B2 (the concentration of 0.4%), which contains: 4.2% of orange oil, 2.1% of boron and product Canol 70% p/p exstract of Cinnamomum zeylanicum. In 2015, only Prev-B2 product was used. The standard sprayer was used and the treatments were done: twice in 2014 and three times in 2015. The thrips were collected directly from the leaves, using standard sweeping nets. The plants were examined to find the leave damages caused by feeding thrips. In 2014, Thrips tabaci was recorded from 11 June to 19 August, whereas in 2015 from 24 June to 4 August. Over two years of observations, the highest number of thrips was collected from onion growing on control plots (not treated with any preparation). Also, the mean percentage of areas damaged on the onion leaves was significantly higher on control plots than on plots treated with cinnamon oil in 2014 and orange oil in 2015.

scholarly journals Responses of the Black Bengal goat (Capra hircus) to PMSG and surgical embryo recovery within MOET technique

1970 ◽  
Vol 4 (2) ◽  
pp. 107-115 ◽  
Author(s):  
MO Faruk ◽  
FY Bari ◽  
M Shamsuddin ◽  
MGS Alam ◽  
MF Islam
Keyword(s):  
Dose Rate ◽  
Research Work ◽  
Capra Hircus ◽  
Corpora Lutea ◽  
Embryo Recovery ◽  
The Mean ◽  
One Year ◽  
Natural Service ◽  
Mean Time ◽  
Black Bengal Goat

The aim of the present study was to determine the responses of Black Bengal Goat following synchronization with alfaprostol, superovulation with PMSG and embryo collection with surgical procedure. This research work was carried out at the Department of Surgery and Obstetrics, Bangladesh Agricultural University (BAU) during the period from January to December 2001. Three Flushing schedules have been carried out in one-year time consisting of 5 donor and 4 recipients in Flush I, 2 donors and 4 recipients in Flush II, and 4 donors and 3 recipients in Flush III. The donors as well as the recipients were synchronized with Gabbrostim® (Alfaprostol, VETEM, Italy) at the dose rate of 2-mg equivalent to 1ml/goat. Among 11 donors only 6 donors responded following first injection, but all donor responded with second and third injection of Gabbrostim®. The mean time of onset of oestrus and duration of oestrus in donor were 29.9 ± 9.20h, 50.0 ± 5.94h, 47.8 ± 4.05h and 20.9 ±5.10h, 27.9 ± 1.19h, 29.4 ± 1.36h respectively. Among 11 recipient does, only 6 responded following first injection of Gabbrostim, while that of second injection was 9. The mean time of onset of oestrus and duration of oestrus were 28.6 ± 9.69h, 40.1 ± 8.95h and 17.1 ± 5.05h, 22.5 ± 3.45h respectively. All 9 recipients responded in third injection and the mean time of onset of oestrus and duration of oestrus were 39.9 ± 5.06h and 27.4 ± 1.32h respectively. In all flushing schedules, superovulation was performed using PMSG (Folligon®, Intervet International B.V, Holland) at the dose rate of 900 IU, 800 IU and 700 IU respectively. Both natural service and AI was performed to fertilise the ovum after onset of oestrus. The superovulatory response was determined by counting the number of corpora lutea (CL) during collection of embryos. The percent of superovulatory donor goats were 100, 50 and 25% respectively. The mean number of ovulation was 13.6 ±3.6, 10.5 ± 8.5 and 3.5 ± 3.2 respectively. The embryos were collected surgically by using 50 ml Phosphate buffer saline (PBS). The embryos were counted and graded under stereomicroscope. The embryo collection rates varied from 0-100%. The recovered embryos were of 100% fertile. The total number of embryos recovered was 4, 8 and 8 with the percent of recovery 6, 38 and 61.5% respectively. In Flush I among 4 recovered embryos, 3 were Grade 1 morula and the rest embryo was Grade 2 late morula. In Flush II among 8 recovered embryos, 7 were Grade 2 early morula and rest embryo was Grade 2 late morula. In Flush III among 8 recovered embryos, 5 were Grade 2 morula and rests 3 were Grade 2 late morula. Key words: Black Bengal goat, PMSG, embryo, MOET DOI = 10.3329/bjvm.v4i2.1293 Bangl. J. Vet. Med. (2006). 4 (2): 107-115

scholarly journals Modelling and characterisation of geometric errors on 5-axis machine-tool

2019 ◽  
Vol 20 (6) ◽  
pp. 605
Author(s):  
Fabien Viprey ◽  
Hichem Nouira ◽  
Sylvain Lavernhe ◽  
Christophe Tournier
Keyword(s):  
Machine Tool ◽  
Research Work ◽  
Metrological Traceability ◽  
Measurement Procedure ◽  
Geometric Errors ◽  
Volumetric Error ◽  
Identification Procedure ◽  
Time Drift ◽  
The Mean ◽  
Structural Loop

This research work deals with the geometric modelling of 5-axis machine tool based on a standardised parameterisation of geometric errors with the aim to decrease the volumetric error in the workspace. The identification of the model’s parameters is based on the development of a new standard thermo-invariant material namely the Multi-Feature Bar. Thanks to its calibration and a European intercomparison, it now provides a direct metrological traceability to the SI metre for dimensional measurement on machine tool in a hostile environment. The identification of three intrinsic parameters of this standard, coupled with a measurement procedure ensures a complete and traceable identification of motion errors of linear axes. An identification procedure of location and orientation errors of axes is proposed by probing a datum sphere in the workspace and minimising the time drift of the structural loop and the effects of the previously identified motion errors. Finally, the developed model partially identified, allows the characterisation of 95% of the measured volumetric error. Therefore, the mean volumetric error not characterised by the model only amounts to 8 μm.

scholarly journals Tomographic retrievals of ozone with the OMPS Limb Profiler: algorithm description and preliminary results

2018 ◽  
Vol 11 (4) ◽  
pp. 2375-2393 ◽  
Author(s):  
Daniel J. Zawada ◽  
Landon A. Rieger ◽  
Adam E. Bourassa ◽  
Douglas A. Degenstein
Keyword(s):  
Polar Vortex ◽  
Retrieval Algorithm ◽  
Vertical Profiles ◽  
Two Dimensional ◽  
One Dimensional ◽  
Preliminary Results ◽  
Horizontal Gradients ◽  
The Mean ◽  
The One

Abstract. Measurements of limb-scattered sunlight from the Ozone Mapping and Profiler Suite Limb Profiler (OMPS-LP) can be used to obtain vertical profiles of ozone in the stratosphere. In this paper we describe a two-dimensional, or tomographic, retrieval algorithm for OMPS-LP where variations are retrieved simultaneously in altitude and the along-orbital-track dimension. The algorithm has been applied to measurements from the center slit for the full OMPS-LP mission to create the publicly available University of Saskatchewan (USask) OMPS-LP 2D v1.0.2 dataset. Tropical ozone anomalies are compared with measurements from the Microwave Limb Sounder (MLS), where differences are less than 5 % of the mean ozone value for the majority of the stratosphere. Examples of near-coincident measurements with MLS are also shown, and agreement at the 5 % level is observed for the majority of the stratosphere. Both simulated retrievals and coincident comparisons with MLS are shown at the edge of the polar vortex, comparing the results to a traditional one-dimensional retrieval. The one-dimensional retrieval is shown to consistently overestimate the amount of ozone in areas of large horizontal gradients relative to both MLS and the two-dimensional retrieval.

Evaluation of the Anti-Factor Xa Chromogenic Assay for Measuring Rivaroxaban Plasma Concentrations Using Calibrators and Controls

Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 3330-3330 ◽  
Author(s):  
Meyer Michel Samama ◽  
Genevieve Contant ◽  
Theodore E Spiro ◽  
Elisabeth Perzborn ◽  
Céline Guinet ◽  
...  
Keyword(s):  
Human Plasma ◽  
Calibration Curve ◽  
Plasma Concentrations ◽  
Control Sample ◽  
Factor Xa ◽  
Alternative Methods ◽  
Preliminary Results ◽  
Chromogenic Assay ◽  
Wide Range ◽  
The Mean

Abstract Abstract 3330 Background: Rivaroxaban is an oral, direct Factor Xa inhibitor in an advanced stage of clinical development for the prevention and treatment of thromboembolic disorders. It inhibits Factor Xa activity without requiring cofactors (such as antithrombin) and has been found to have predictable pharmacokinetics and pharmacodynamics in humans. Routine coagulation monitoring is not required, but a quantitative determination of rivaroxaban concentrations might be useful in some cases, such as severe overdose or to measure compliance. Although the prothrombin time assay may be of assistance for the assessment of peak rivaroxaban plasma concentrations using calibrators and controls as previously shown, alternative methods such as the anti-Factor Xa chromogenic assays may allow the measurement of a wider rivaroxaban plasma concentration range. Methods: A multicenter study was initiated to evaluate the suitability of the anti-Factor Xa chromogenic assay for the measurement of rivaroxaban plasma concentrations (ng/mL) using rivaroxaban calibrators and controls, and to assess the inter-laboratory precision of the measurement. A total of 25 centers were provided with sets of rivaroxaban calibrators (0, 41, 209, and 422 ng/mL) and a set of rivaroxaban pooled human plasma controls (20, 199, and 662 ng/mL). The concentrations of the human plasma controls were unknown to the participating laboratories. The evaluation was carried out over 2 consecutive weeks (10 days) by each laboratory using its own anti-Factor Xa reagents as well as 1 provided centrally (modified STA® Rotachrom, Diagnostica Stago, Asnières-sur-Seine, France). A calibration curve was produced each day and the day-to-day precision was evaluated by testing in duplicate 3 human plasma controls. The plasma control sample was diluted (1:3 dilution) and re-tested if the measured level was above the highest concentration of the calibration curve. Results: Preliminary results from 8 centers showed that the mean rivaroxaban concentrations obtained were 21, 199, 549, and 708 ng/mL when using the modified STA Rotachrom method, or 19, 200, 556, and 676 ng/mL when using the local anti-Factor Xa reagents for the human plasma controls (19, 160, and 643 [undiluted and diluted samples] ng/mL, respectively). The mean coefficients of variation were 17.7%, 4.6%, 1.9%, and 8.9%, respectively, when using the modified STA Rotachrom method, or 33.7%, 4.7%, 2.2%, and 7.7%, respectively, when using the local anti-Factor Xa reagents. Conclusions: The preliminary results of this multicenter field trial suggest that the anti-Factor Xa chromogenic method, using rivaroxaban calibrators and controls, is suitable for measuring a wide range of rivaroxaban plasma concentrations. Disclosures: Samama: Bayer Healthcare: Consultancy. Spiro:Bayer Healthcare Pharmaceuticals Inc.: Employment. Perzborn:Bayer Schering Pharma AG: Employment.

Investigation and Application of High Performance Concretes

2010 ◽  
Vol 659 ◽  
pp. 517-521
Author(s):  
Viktória Sugár ◽  
Márton Takács ◽  
Vilmos Ovári
Keyword(s):  
Bulk Density ◽  
High Performance ◽  
Research Work ◽  
Hardened Concrete ◽  
Self Compacting Concrete ◽  
Concrete Technology ◽  
Normal Concrete ◽  
Air Content ◽  
The Mean

Recent research work of the authors is dealing with preparing, investigation and application of high performance concretes (HPC) produced by the mean of results of modern concrete technology. These special types of concrete have one or more outstanding properties conversely the normal concrete. This article is focusing on the results of the experiments regarding self compacting concrete (SCC). During the investigation, effects of the fine-graded fraction was studied, which is indispensable component of the SCC. The effects of bulk density, consistency, air content, compressive strenght were analysed on fresh and hardened concrete.

QUADRATIC HEDGING FOR THE BATES MODEL

2007 ◽  
Vol 10 (05) ◽  
pp. 873-885 ◽  
Author(s):  
FRIEDRICH HUBALEK ◽  
CARLO SGARRA
Keyword(s):  
Option Pricing ◽  
Explicit Expression ◽  
Martingale Measure ◽  
Risk Minimization ◽  
Hedging Strategy ◽  
Preliminary Results ◽  
Quadratic Hedging ◽  
The Mean ◽  
Mean Variance ◽  
Martingale Case

In the present paper we give some preliminary results for option pricing and hedging in the framework of the Bates model based on quadratic risk minimization. We provide an explicit expression of the mean-variance hedging strategy in the martingale case and study the Minimal Martingale measure in the general case.

scholarly journals Off-Label Prescription of Hydroxycarbamide (Hydroxyurea, HU) for Severe Anemia: Preliminary Results from European Non-Interventional, Multicentric, Prospective Escort-HU Study

Blood ◽  
2017 ◽  
Vol 130 (Suppl_1) ◽  
pp. 758-758
Author(s):  
Mariane De Montalembert ◽  
Gylna Loko ◽  
Jerome Clouzeau ◽  
Valentine Brousse ◽  
Frederic Galacteros ◽  
...  
Keyword(s):  
Board Of Directors ◽  
Research Funding ◽  
Expert Panel ◽  
Safety Data ◽  
Incidence Rates ◽  
Cell Disease ◽  
Advisory Committees ◽  
Off Label ◽  
Preliminary Results ◽  
The Mean

Abstract HU is licensed in Europe in the prevention of recurrent painful vaso-occlusive crises (VOC) including acute chest syndromes in adults, adolescents and children older than 2 years with sickle-cell disease (SCD). However, based on US and European expert panel recommendations (Yawn 2014, Habibi 2015) and results from placebo-controlled clinical trials, HU could be useful in SCD patients with severe anemia without VOC since it has been demonstrated to increase total Hb level (Wang 2011) and to decrease the need for blood transfusion. We hereby present preliminary results on effectiveness and safety data related to the prescription of HU for anemia from ESCORT-HU (European Sickle Cell Disease COhoRT - HydroxyUrea), a multicentric, prospective, non-interventional European study designed to collect long-term safety data on HU in SCD population. Between January 2009 and June 2017, 1841 patients were enrolled from 63 centers in France, Germany, Greece and Italy, amongst which 126 patients (6.8%) were started on HU for anemia from 34 centers. Of these 126, 96 were HU-naive. These HU-naive patients treated for anemia ('anemic' subpopulation) were selected for analysis to evaluate effectiveness and safety of HU in this indication and compared with data in HU-naive patients treated for other SCD indications. Demographic data and Hb genotypes are displayed in Table 1. The mean age, distribution of gender, Hb genotype and the mean HU dose at initiation were comparable in the 'anemic' subpopulation and the 'non-anemic' HU-naive cohort. Not surprisingly, mean Hb level at initiation was markedly lower in the 'anemic' subpopulation (7.07 ± 0.88 g/dl) than in the 'non-anemic' HU-naive cohort (8.71 ± 1.51 g/dl), with a lower proportion of patients with history of VOC and SCD-related hospitalization prior to HU initiation. The mean HU dose after 6 months was comparable in both groups (15.6 ± 3.83 mg/kg/day and 15.4 ± 4.11 mg/kg/day, respectively). Variation of blood parameters are displayed in Table 2. Similarly to what has been observed previously, a dramatic rise in Hb concentration (> 2 g/dl) was observed. This increase was comparable in absolute value to the increase observed in non-anemic patients. An increase in HbF was observed in the "anemic" subpopulation, with a near 2-fold increase in %HbF, markedly in children. Changes in reticulocyte counts were inconclusive due to small number of patients in the dataset. Safety of HU in the population of patients treated for anemia was evaluated by comparing incidence rates of non-SCD related adverse events (AEs) in HU-naive patients treated for anemia with the 'non-anemic' HU-naive ESCORT-HU subpopulation (Table 3). With mean follow-up periods of 18.3 months in 'anemic' subpopulation and 34.2 months in 'non-anemic' HU-naive cohort, preliminary results showed no striking difference in the incidence rate of reported AEs (total and serious) between the two populations (112.5% vs 139.8%, respectively for incidence rate of total AEs), and in the distribution of AEs by System Organ Class (SOC), at least in SOC where the number of adverse events was large enough to allow for comparison between the groups. Similarly, when focusing on AE causally related to HU (as judged by the investigators), the most frequently reported toxicity in the 'anemic' population was myelosuppression (anemia, neutropenia thrombocytopenia, pancytopenia reported in 4 children, one event each), as in the 'non-anemic' HU-naive cohort, with comparable incidence rates. In conclusion, even though HU is not licensed in Europe in severe chronic anemia, European and US expert panel guidelines recommend treatment with HU in this indication. Data from ESCORT-HU observational study on a subset of SCD patients treated off label in this indication confirmed total Hb level increase while the safety profile of HU in this subpopulation did not differ significantly from the 'non-anemic' HU-naive population. Disclosures De Montalembert: Novartis: Consultancy, Honoraria, Research Funding; Addmedica: Consultancy, Honoraria, Research Funding. Brousse: Add Medica: Membership on an entity's Board of Directors or advisory committees. Galacteros: Addmedica: Membership on an entity's Board of Directors or advisory committees.

scholarly journals Tomographic retrievals of ozone with the OMPS Limb Profiler: algorithm description and preliminary results

2017 ◽  
Author(s):  
Daniel J. Zawada ◽  
Landon A. Rieger ◽  
Adam E. Bourassa ◽  
Douglas A. Degenstein
Keyword(s):  
Polar Vortex ◽  
Retrieval Algorithm ◽  
Vertical Profiles ◽  
Two Dimensional ◽  
One Dimensional ◽  
Preliminary Results ◽  
Horizontal Gradients ◽  
The Mean ◽  
The One

Abstract. Measurements of limb scattered sunlight from the Ozone Mapping and Profiler Suite Limb Profiler (OMPS-LP) can be used to obtain vertical profiles of ozone in the stratosphere. In this paper we describe a two-dimensional, or tomographic, retrieval algorithm for OMPS-LP where variations are retrieved simultaneously in altitude and the along orbital track dimension. The algorithm has been applied to measurements from the center slit for the full OMPS-LP mission to create the publicly available USask OMPS-LP 2D v1.0.2 dataset. Tropical ozone anomalies are compared with measurements from the Microwave Limb Sounder (MLS) where differences are less than 5 % of the mean ozone value for the majority of the stratosphere. Examples of near coincident measurements with MLS are also shown, and agreement at the 5 % level is observed for the majority of the stratosphere. Both simulated retrievals and coincident comparisons with MLS are shown at the edge of the polar vortex, comparing the results to a traditional one-dimensional retrieval. The one-dimensional retrieval is shown to consistently overestimate the amount of ozone in areas of large horizontal gradients relative to both MLS and the two-dimensional retrieval.

scholarly journals Clinicohistopathological study of astrocytomas along with Ki-67 proliferative index

2018 ◽  
Vol 6 (2) ◽  
pp. 665 ◽  
Author(s):  
Basumitra Das ◽  
Kurimella Vamsya Raj ◽  
Bhagyalakshmi Atla
Keyword(s):  
Histological Grade ◽  
Research Work ◽  
Low Grade ◽  
Proliferative Index ◽  
Ki 67 ◽  
Biologic Marker ◽  
Grade Ii ◽  
The Mean ◽  
The Difference ◽  
Grade Iii

Background: Astrocytomas form the largest group of gliomas (>75%) and diffusely infiltrating    accounting for more than 60% of all the primary brain tumors. The ki67 proliferative index is a potent biologic marker that estimates the growth of neoplasms quantitatively and thus will aid in identifying the prognosis for patients with neoplasms.  The aim of the research work was to study various histopathological and clinical features of Astrocytomas in detail, to evaluate Ki-67 proliferative index in patients of Astrocytomas and to compare the results of Immunohistochemistry with histological grade of Astrocytomas.Methods: A   total   number   of    40 cases of   Astrocytomas were included in the study.  Ki-67 immunostaining was done on all cases and compared with WHO histological grading of astrocytomas.Results: The mean Ki‑67 LI in Grade I astrocytomas was 4.66, range 4-5 ,  in Grade II astrocytomas mean was 8.07, range 5-12 ,in Grade III astrocytomas mean was 13.5 , range 8-20,  in Grade IV astrocytomas mean was 22.93, range 15-50. There was a highly significant correlation between the histopathological grade of astrocytomas and Ki-67 LI (p<0.05).Conclusions: The monoclonal antibody Ki-67 has proven its prognostic and diagnostic power in astrocytic tumors. Ki-67 LI is the simplest and the most reliable method for evaluating cell proliferation. Ki-67 LI increased with histological grade and the difference between low grade (I and II astrocytomas) and high grade (grade III and IV) is significant. In the present study Ki-67 LI is not dependent on factors like age and sex and is solely dependent on histological grade.

scholarly journals TL 18241 - Preliminary results of the correction of metatarsus adductus associated with severe hallux valgus

2019 ◽  
Vol 13 (Supl 1) ◽  
pp. 113S
Author(s):  
Nacime Salomão Barbachan Mansur ◽  
Lucas Furtado da Fonseca ◽  
Leonardo Fernandez Maringolo ◽  
Eduardo Souza Maciel ◽  
Danilo Oliveira ◽  
...  
Keyword(s):  
Hallux Valgus ◽  
Correction Angle ◽  
Preliminary Results ◽  
First Metatarsal ◽  
Angle Measurements ◽  
Metatarsal Bones ◽  
Valgus Angle ◽  
Before And After ◽  
The Mean ◽  
Severe Hallux Valgus

Objective: To evaluate the preliminary results of angular corrections from a series of cases of surgical treatment of severe hallux valgus associated with metatarsal adduction. Methods: Data were retrospectively collected from the medical records and pre- and postoperative radiographs of patients undergoing Lapidus arthrodesis combined with lateral rotation osteotomy at the bases of the second and third metatarsals. The following angle measurements were performed before and after surgery: hallux valgus angle, intermetatarsal angle, and the degree of adduction of metatarsal bones (measured using Sgarlato’s and Engel’s angles). The mean follow-up period was 18 months (16-24 months). Results: The mean hallux valgus correction angle was 31° (19-53°), and the mean intermetatarsal correction angle was 5.771° (2-9°). Regarding forefoot adduction, the mean correction angle measured was 15.57° (12-21°) when the Sgarlato technique was used and 15.71° (10-22°) when the Engel technique was used. All measured angles decreased significantly in the postoperative evaluation. Conclusion: Rotational osteotomy at the bases of the second and third metatarsals was effective for correcting metatarsal adduction, allowing the alignment of the first metatarsal and therefore the correction of the deformity.

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