scholarly journals CPUE comparison of traditional crayfish fyke net rigged with knotted net and alternatively knotless net

2021 ◽  
Vol 38 (1) ◽  
Author(s):  
Mehmet Cilbiz ◽  
Rahmi Uysal ◽  
Abdulkadir Yağcı ◽  
S. Oğuz Korkut ◽  
Kadir Çapkın ◽  
...  
Keyword(s):  
High Strength ◽  
Average Strength ◽  
Monthly Basis ◽  
Significant Difference ◽  
Fyke Nets

In this study, it is aimed to compare the yield and strength of the crayfish fyke rigged with knotless net with 210d/12 rope thickness with those of the traditional net material rigged with 210d/6 knotted net which is widely used in Turkey in fishing crayfish (Pontastacus leptodactylus, Eschscholtz, 1823). The study was carried out on a monthly basis between June 2017 and May 2018. In the study, a total of 300 fyke nets, equipped with 150 classical and 150 alternative nets, were used. The caught crayfishes were measured and weighted according to the fyke net they were caught in. A total of 3509 crayfish were caught, 1465 of which were caught with alternative fyke net and 2044 with traditional fyke net. Average CPUE value ranged from 10.93 (g/fyke net/day) to 281.14 (g/fyke net/day) for per fishing operation. Average CPUE value of the traditional gear was found to be 98.34 (g/fyke net/day) , while that of the alternative gear was determined as 79.46 (g/fyke net/day), and no statistically significant difference was found between average CPUE values (p>0.05). Average strength value of the traditional fyke net was determined as (± SE) 10.43 ± 0.27 kg, while that value in 210d / 12 knotless net was identified as 14.50 ± 0.91 kg (p<0.05). Although it has high strength, since the CPUE value of the alternative fyke net is lower by 19.20% compared to the traditional gear, it is believed that its use in crayfish fishing will not be profitable.

scholarly journals Correlation Between Self-Reported Resident Duty Hours and Time-Stamped Parking Data

2012 ◽  
Vol 4 (2) ◽  
pp. 254-256 ◽  
Author(s):  
Smitha R. Chadaga ◽  
Angela Keniston ◽  
Dan Casey ◽  
Richard K. Albert
Keyword(s):  
Medical Center ◽  
Daily Basis ◽  
Work Hours ◽  
Parking Garage ◽  
Monthly Basis ◽  
Web Based ◽  
Duty Hours ◽  
Resident Work ◽  
Significant Difference ◽  
Reported Data

Abstract Background Failure to comply with Accreditation Council for Graduate Medical Education-mandated resident work hour limitations can result in citations and shortened accreditation cycles. Many programs assess compliance by collecting self-reports of work hours from each resident. Objectives To examine residents' self-reported assessment of work hours recorded on a daily basis using a Web-based product with electronically recorded times collected as residents entered and exited the parking garage. Methods Study participants consisted of 62 University of Colorado Denver internal medicine residents rotating at Denver Health Medical Center on a monthly basis over a 4-month period. Self-reported data submitted by 60 residents were compared with the times these residents entered and exited from the parking garage at Denver Health Medical Center, as assessed by an electronic badge reader. Results A high level of agreement was found between these two data sets. No significant difference was found between the time-stamped parking data and self-reported Web-based data for resident work hours. Conclusions Residents accurately self-reported their work hours, using a daily Web-based duty hours log when compared to an independent, objective and blinded assessment of work hours.

Soil moisture effects on cellulose decomposition in a Mediterranean ecosystem of Attica, Greece

2009 ◽  
Vol 55 (1) ◽  
pp. 63-76 ◽  
Author(s):  
Effimia Sotiriou ◽  
Margarita Arianoutsou
Keyword(s):  
Soil Moisture ◽  
Mass Loss ◽  
Eastern Mediterranean ◽  
Irrigation Treatment ◽  
Mesh Size ◽  
Mediterranean Ecosystem ◽  
Limiting Factor ◽  
Monthly Basis ◽  
Cellulose Decomposition ◽  
Significant Difference

Water is the most critical limiting factor for decomposition processes in Mediterranean climate ecosystems. The aim of this study was to investigate the effects of increased soil moisture levels upon cellulose mass loss in an eastern Mediterranean ecosystem. We used a split plot experimental design to evaluate the effect of seasonality on the decomposition process by manipulating water availability in situ during different seasons. Nylon litterbags of mesh size 20 μm and 1 mm were filled with cellulose filter paper and placed on the plots during each season. The treatment consisted of a systematic uniform watering of the plots with 7 L/m2/week. Litterbags were randomly removed from each plot on a monthly basis. Cellulose mass loss showed differences between treatment and control plots and between seasons but was significant only in the spring. Cellulose mass loss was significantly affected by irrigation treatment, season, and their interaction, while moisture seemed to be affected only by season. There was no significant difference in cellulose mass loss due to different mesh sizes.

Assessment of Self-Adhesive Resin Composites: Nondestructive Imaging of Resin–Dentin Interfacial Adaptation and Shear Bond Strength

2015 ◽  
Vol 21 (6) ◽  
pp. 1523-1529 ◽  
Author(s):  
Patricia Makishi ◽  
Rafael R. Pacheco ◽  
Alireza Sadr ◽  
Yasushi Shimada ◽  
Yasunori Sumi ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Resin Composites ◽  
Third Molars ◽  
Average Strength ◽  
Adhesive Resin ◽  
High Brightness ◽  
Significant Difference ◽  
Nondestructive Imaging ◽  
Vertise Flow

AbstractShear bond strength (SBS) and the interfacial adaptation (IA) of self-adhesive resin (SAR) composites to dentin were evaluated. Two SARs [Vertise Flow (VTF) and Fusio Liquid Dentin (FLD)] were evaluated and compared with a conventional restorative system [adhesive: OptiBond FL and composite: Herculite Précis (OBF/HP)]. Human third molars were used for SBS testing and IA imaging (n=7) using optical coherence tomography (OCT). Flattened dentin disks were prepared and the composites were applied into molds (2.4 mm diameter) that were positioned on dentin. Samples were subjected to SBS testing and OCT analysis, which considered an increase in signal intensity at the bonded interface as evidence of internal gaps. SBS data were analyzed by one-way analysis of variance and Tukey’s test and IA data (% distribution of high brightness values) by Kruskal–Wallis and Dunn’s test (p≤0.05). No statistically significant difference in SBS was observed between VTF (13.9±3.6 MPa) and FLD (11.3±3.2 MPa), whereas OBF/HP showed higher average strength (27.3±6.1 MPa). However, there was a statistically significant difference in IA when VTF (33.3%) was compared with FLD (1.2%) and OBF/HP (1.5%). The conventional restorative system exhibited superior SBS performance compared with SARs. However, the IA of FLD to dentin had values that were not significantly different from OBF/HP.

scholarly journals Spatial and Monthly Changes in Interstitial Water Physico-Chemistry of Bodo Creek

2021 ◽  
pp. 1-8
Author(s):  
D. K. Nkeeh ◽  
A. I. Hart ◽  
E. S. Erondu ◽  
N. Zabbey
Keyword(s):  
Oxygen Demand ◽  
Aquatic Organisms ◽  
Ion Concentration ◽  
Chemical Parameters ◽  
Monthly Basis ◽  
Hydrogen Ion Concentration ◽  
Quality Of Water ◽  
Physico Chemical ◽  
Significant Difference ◽  
High Level

Water plays a key role in the survival, growth and reproduction of aquatic organisms. Therefore maintaining good quality of water physico-chemical parameters would ensure optimum productivity of aquatic fauna. The study evaluated water physical and chemical parameters (temperature, hydrogen ion concentration (pH), conductivity, dissolved oxygen (DO) and biochemical oxygen demand (BOD) of Bodo Creek. Sample was collected for 5 months (July 2020 – November 2020) at locations previously studied (before-spill baseline studies, 3 years, 5 years, and 7 years after-spill); by using the sampling methods used in previous studies. Spatially, there was no statistically significant difference in temperature (p > 0.05 = 0.997), pH (p > 0.05 = 0.496), DO (p > 0.05= 0.34) and BOD (p > 0.05 = 0.644). However, the difference in conductivity between the stations was statistically significant (p < 0.05 = 0.006). On monthly basis, there was a significant difference in temperature (p < 0.05 = 0.000) and pH (p < 0.05 = 0.005). In contrast, there was no statistically significant difference in conductivity (p > 0.05 = 0.633), DO (p > 0.05 = 0.559) and BOD (p > 0.05 = 0.75). Most of the physico-chemical parameters were not within the WHO recommended levels for the survival of aquatic lives, indicating a high level of environmental pollution in Bodo Creek. This study provides dataset for future evaluation of the water physico-chemistry of Bodo Creek.

scholarly journals Atmospheric blocking types: Frequencies and transitions

2020 ◽  
Author(s):  
Carola Detring ◽  
Annette Müller ◽  
Lisa Schielicke ◽  
Peter Névir ◽  
Henning W. Rust
Keyword(s):  
Markov Model ◽  
Northern Hemisphere ◽  
Transition Probabilities ◽  
Transition Probability ◽  
Time Step ◽  
Pressure System ◽  
Monthly Basis ◽  
Atlantic Sector ◽  
Weather Patterns ◽  
Significant Difference

Abstract. Stationary, long-lasting blocked weather patterns can lead to extreme conditions such as very high temperatures or heavy rainfall. They are defined by a persistent high pressure system in combination with one or two low pressure systems. The mechanisms for the onset of such weather patterns are still not fully understood. Using a novel method based on the kinematic vorticity number we distinguish between two blocking types, namely High-over-Low and Omega block, in previously-identified blocking periods. Our main goal of this work is to study the temporal evolution of the occurrence probability and the onset, offset, and transition probabilities of blocking on the northern hemisphere. We analyze NCEP-DOE Reanalysis 2 data over the30 year period from 1990 to 2019 in two regions: Euro-Atlantic sector (40° W–30° E) and half northern hemisphere (90° W–90° E). First, we use logistic regression to investigate the temporal development of blocking probabilities depending on years, seasons and months. We find no significant difference in blocking numbers over the 30 year period. But we find large differences in the occurrence probabilities on a monthly basis with strongest increases over the 30 year period in February and March that are compensated by a decrease in December and autumn. Second, we use a Markov model to calculate the transition probabilities for two models: One is composed of two states blocking and no blocking, and another Markov model (three states) that additionally distinguishes between the specific blocking types High-over-Low and Omega blocking as well as of the state no blocking. The description with Markov theory reduces the probability to change from one weather regime to another or to stay within the same regime to a dependency only on the previous time step. Over the 30 year period, we found the largest changes in transition probabilities in the summer season, where the transition probability to Omega blocks increase strongly, while the unblocked state becomes less probable. Hence, Omega blocks become more frequent and stable in summer at the expense of the other states. As a main result, we show that Omega blocking is more likely to occur and more persistent than the High-over-Low blocking pattern.

scholarly journals Population distribution and habitat analysis of Rufous treepie (Dendrocitta vagabunda) in Abbottabad, Pakistan

2023 ◽  
Vol 83 ◽  
Author(s):  
R. A. Khan ◽  
Z. Ullah ◽  
I. Uz Zaman ◽  
M. S. Khan ◽  
S. Mahmood ◽  
...  
Keyword(s):  
Population Distribution ◽  
Suitable Habitat ◽  
Importance Value Index ◽  
Importance Value ◽  
Monthly Basis ◽  
Point Count ◽  
Habitat Analysis ◽  
Significant Difference ◽  
Point Count Method ◽  
Order Passeriformes

Abstract The Rufous treepie (Dendrocitta vagabunda) belongs to family corvidae, order Passeriformes which includes about 100 species. The current study was conducted to gather information about the Population distribution and habitat analysis of D. vagabunda at District Abbottabad, Pakistan. The data were collected on monthly basis both morning and evening times (2018-2019). “The ‘’Point count Method” was used for population estimation and ‘’Quadrates Method” for habitat analysis of study area. The result shows an average month-wise population density of D. vagabunda was maximum at Jhangra 0.14±0.039/ha, whereas minimum at Havelian 0.11±0.022/ha. There was no significant difference (p>0.05) among monthly population densities of D. vagabunda, however, a significant difference (p<0.05) was found between morning and evening times population of the specie. The present study revealed that importance value index (IVI) of plants species at Sherwan, Bakot, Havelian, Langra and Jhangra were 59.6±12.6, 50.1±6.9, 53.4±6.3, 66.8±10 and 60.1±7.7. Likewise, the frequency of shrubs at Sherwan, Bakot, Havelian, Langra and Jhangra were 33.3±4.2, 45±9.4, 46.7±8.2, 55.6±22.2 and 37.5±8.5. Similarly, the frequency of herbs at Sherwan, Bakot, Havelian, Langra and Jhangra were 40.4±6.0, 37.5±5.6, 53.3±7.4, 48.5±5.2 and 46.9±7.4 respectively. Our results show the study area as suitable habitat for D. vagabunda.

scholarly journals Hyperkalemia in hypertensive patients undergoing regular hemodialysis during enalapril and fosinopril therapy

2006 ◽  
Vol 134 (1-2) ◽  
pp. 44-48 ◽  
Author(s):  
Nada Dimkovic ◽  
Tanja Djordjevic ◽  
Jovan Popovic ◽  
Sinisa Dimkovic ◽  
Biserka Tirmenstajn-Jankovic ◽  
...  
Keyword(s):  
Pilot Study ◽  
Serum Potassium ◽  
Antihypertensive Drugs ◽  
Hemodialysis Patients ◽  
Left Ventricular ◽  
Chronic Hemodialysis ◽  
Dialysis Adequacy ◽  
Monthly Basis ◽  
Mean Values ◽  
Significant Difference

Introduction. Hypertension is evident in 80%-85% of patients with chronic renal failure and antihypertensive therapy is needed in 25%-30% of patients. Apart from antihypertensive effect, ACEi?s decrease the left ventricular hypertrophy and mortality in dialysis patients. Even so, their use is limited due to hyperkalemia. Objective. The objective of the study was to compare the effect of fosinopril and enalapril on serum potassium level in hypertensive hemodialysis patients. Method. Prospective pilot study included 16 patients undergoing chronic hemodialysis, with mean age of 58.9?9.6 years and mean duration of hypertension 11.3?7.1 years. The effect of antihypertensive drugs of equivalent dose was followed during three periods (three months each): period 1 (therapy with enalapril), period 2 (therapy with fosinopril) and period 3 (therapy with enalapril). Dialysis conditions were constant and patients were without signs of catabolic state. Laboratory results were followed on monthly basis and mean values were compared by ANOVA-one way test. Difference between variables between periods was tested using Bonferoni method. Results. There was significant difference between mean serum potassium levels throughout three therapeutic periods (5.88?0.38 vs. 4.99?0.44 vs. 5.46?0.46mmol/l; p<0.001). Difference was evident even in the first month of fosinopril therapy. The effect can not be explained by dialysis adequacy since Kt/ V was similar throughout three treatment periods (1.18?0.24 vs. 1.25?0.21 vs. 1.25?0.14; p=ns). Systolic blood pressure was regulated even better with fosinopril than with enalapril (187.5?21.4 mmHg vs.160.0?20.0 mmHg; p=0.01) and this effect was prolonged during period 3 (160.0?26.1mmHg). Hemoglobin values mainly depended on specific anemia therapy and not on particular ACEi drug. Conclusion. Fosinopril carries less risk of hyperkalemia in hypertensive hemodialysis patients than enalapril. Although definite conclusion may be drawn after well-designed studies, the results presented in this pilot study suggest that fosinopril may be recommended for hypertensive hemodialysis patients who are at risk to develop inter-dialytic hyperkalemia.

Human Lifting Strength in Different Postures

1989 ◽  
Vol 33 (11) ◽  
pp. 745-749
Author(s):  
C. Chomcherngpat ◽  
P. Mandhani ◽  
C. Lum ◽  
C. Martin
Keyword(s):  
Laboratory Study ◽  
Standing Position ◽  
Peak Strength ◽  
Average Strength ◽  
Significant Difference ◽  
Male Subjects ◽  
Lifting Strength

A laboratory study was conducted to determine static lifting strengths on 13 males and 12 females from 18 to 28 years of age. Using the strength monitor, the average strength and peak strength were measured in four different postures: standing, sitting, lying on stomach with elbows support, and without elbow support. Five sets of data were collected at constant heights. There was a significant difference in lifting strengths between standing lifts and lying on stomach without elbow-support postures; maximum lift occurred in the standing position. It was found that there was no significant difference in lifting strengths between sitting and lying on stomach with elbows sup port. The average female strengths were found to be about 49% to 55% of male subjects in all postures.

scholarly journals The Effect of Extensor Muscle Strength on Meniscus Progression in Subjects Without Radiologic Knee Osteoarthritis -- Data From the Osteoarthritis Initiative

2021 ◽  
Author(s):  
Mingyang Li ◽  
Yong Nie ◽  
Kang Li ◽  
Yi Zeng ◽  
Yuangang Wu ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Knee Osteoarthritis ◽  
Medial Meniscus ◽  
Lateral Meniscus ◽  
High Strength ◽  
Extensor Muscle ◽  
Strength Group ◽  
Structural Progression ◽  
Significant Difference ◽  
Osteoarthritis Initiative

Abstract BackgroundHigh extensor strength decreased knee osteoarthritis symptomatic progression in female was well demonstrated. However, few studies detected a significant association between extensor strength and structural progression when joint space narrowing or cartilage loss were the indicators. The pathological change in meniscus could come earlier than that in cartilage and JSN, but no studies have specifically investigated the association between extensor strength and meniscus progression. MethodsParticipants in Osteoarthritis Initiative with both muscle strength and meniscus assessment, KL grade ≤ 1, and BMI < 30, were enrolled. In separate-sex analysis, participants were divided into the high strength group and the low strength group referring to the median baseline maximum extensor muscle strength/weight. Overall and classified meniscus progression in MRI Osteoarthritis Knee Score was compared between the two groups, at 12 months (622 knees) and 24 months (548 knees). ResultsIn females, less overall medial meniscus progression (11.1% [17/153] VS 23.2% [32/138], P=0.04), less medial meniscal medially extrusion (5.2 % [8/155] VS 12.5 % [18/144], P =0.04), and less medial meniscal anteriorly extrusion progression (0 % [0/108] VS 5.3% [6/113], P=0.03), was presented in the high strength group over 24 months. No significant difference was detected in other comparisons (in males, or in lateral meniscus, or in 12 months). Conclusion High baseline extensor strength in females was associated with a decreased risk of 24- month medial meniscus progression. High extensor strength does not only correlate with less symptomatic progression of KOA, but also with lower risk of structural progression.

scholarly journals Effectiveness of autologous lipoinjection into the hand to improve function in patients with scleroderma: pilot study

2019 ◽  
Vol 7 (8) ◽  
pp. 2883
Author(s):  
Juan Pablo Espinosa-Torres ◽  
Pedro Grajeda-López ◽  
María Del Pilar Cruz-Domínguez ◽  
Luis Rodrigo Carazo-Quiroz ◽  
Edgar Ramírez-López ◽  
...  
Keyword(s):  
Pilot Study ◽  
Rare Disease ◽  
Grip Strength ◽  
Physiological Solution ◽  
The Other ◽  
Average Strength ◽  
Functional Scale ◽  
Significant Difference ◽  
The Mean ◽  
Degree Of Severity

Background: Scleroderma is a rare disease of the tissues that is characterized for being inflammatory and developing fibrosis in the skin. Typically, this disease affects middle-aged women.Methods: A study was conducted in which 10 patients with scleroderma with involvement in the sclerotic stage were included. One of the hands was chosen randomly for treatment with fatty graft processed by Coleman technique and the other hand, physiological solution was placed. Patients were evaluated at 45 and 90 days after the procedure using the Cochin Hand Functional Scale (CHFS) questionnaire, modified Rodnan scale for the skin (mRSS), grip strength with dynamometer and measurement of fingertip to palm of hand in flexion.Results: The average of CHFS before treatment was 42.30 and 25.70 at 90 days p=0.007. The average strength in the experimental hand before treatment was 11.67 and 14.58 at 90 days p=0.007, in the control hand p=0.873. The mean finger-palm tip distance before treatment was 44.80 and from 36.00 to 90 days p=0.019, in the control hand p=0.149. There is a significant difference in the degree of severity at 90 days of the mRSS of the back of the hands p=0.011 and phalanges p=0.000 between the patients with lipoinjection and physiological solution.Conclusion: Significant improvement was observed in patients with scleroderma treated with autologous lipoinjection.

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