Phylogenetic and ecological factors affecting the sharing of helminths between native and introduced rodents in Central Chile

Parasitology ◽  
2018 ◽  
Vol 145 (12) ◽  
pp. 1570-1576 ◽  
Author(s):  
Carlos Landaeta-Aqueveque ◽  
María del Rosario Robles ◽  
AnaLía Henríquez ◽  
Andrea Yáñez-Meza ◽  
Juana Paola Correa ◽  
...  
Keyword(s):  
Ecological Factors ◽  
Helminth Species ◽  
Rodent Species ◽  
Host Switching ◽  
Central Chile ◽  
Factors Affecting ◽  
Geographical Dispersion ◽  
The Mean ◽  
Introduced Rodent

AbstractIn order to analyse the effect of hosts’ relationships and the helminthic load on the switching of parasites between native and introduced hosts, we sampled rodents belonging to two suborders from Central Chile. We compared the number of helminthic species shared between murids (introduced) and cricetid (native, same suborder) rodents to those shared between murids and hystricomorphs (native, different suborder), and we assessed the association between parasitic presence, abundance and geographical dispersion in source hosts to the presence and abundance in recipient hosts. Introduced rodent species shared more helminth species with cricetid rodents than with non-cricetids. Presence and abundance in recipient hosts was not associated with the prevalence and mean abundance in source hosts’ population. The mean abundance of parasites in source hosts throughout the territory and wider dispersion was positively associated with the likelihood of being shared with a recipient host. Closer relationships between native and introduced hosts and high parasitic abundance and dispersion could facilitate host switching of helminths between native and introduced rodents. This work provides the first documentation of the importance of parasitic abundance and dispersion on the switching of parasites between native and introduced hosts.

scholarly journals Ecological Factors Affecting Student Concentration in Classroom: Students' Viewpoint at Hormozgan University of Medical Sciences

2019 ◽  
Author(s):  
A Marzban ◽  
V Rahmanian ◽  
M Ayasi ◽  
S Delavari ◽  
M Barzegaran
Keyword(s):  
Standard Deviation ◽  
Environmental Factors ◽  
Ecological Factors ◽  
Cross Sectional Study ◽  
Medical Sciences ◽  
Cross Sectional ◽  
Factors Affecting ◽  
Significant Difference ◽  
The Mean ◽  
One Way Anova

Introduction: Environmental factors such as temepertature, humidity and light can affect learning environment and consecuently learning quality. This study aimed to investigate the ecological factors affecting concentration in the classroom from the viewpoints of students of Hormozgan University of Medical Sciences. Methods: This cross-sectional study was conducted on 400 students using stratified random sampling method. The data collection tool was a two-part standard two-part questionnaire of demographic characteristics and ecological factors influencing the concentration including 29 questions. Data were analyzed using SPSS24 software using central scatter indicators (frequency, frequency, mean and standard deviation), independent t-test and one-way ANOVA. Result: The mean and standard deviation of student's score on the ecological factors affecting concentration in the classroom in three areas related to the teacher, the student and the environment were 3.69 ± 1.48, 4.20 ± 1.56 and 3.10 ± 1.54. There was a significant difference between the mean scores of students' opinions about environmental factors in both sexes (P = 0.02). Conclusion: The results showed that, by planning and holding joint meetings between the professors, students and educational officials of Hormozgan University of Medical Sciences, effective steps canbe taken to improve the environmental conditions affecting concentration in the classrooms.

Exploring the Ecological Factors Affecting the Employment of People with Disabilities

2019 ◽  
Vol 3 (3) ◽  
pp. 69-93
Author(s):  
Young-soo Kim ◽  
◽  
Su-yon Kim ◽  
Won-sup Ryu ◽  
Soo-eun Park ◽  
...  
Keyword(s):  
Ecological Factors ◽  
People With Disabilities ◽  
Factors Affecting

Open-wedge high tibial osteotomy in patients with discoid lateral meniscus

2021 ◽  
Vol 29 (2) ◽  
pp. 230949902110173
Author(s):  
Hee-June Kim ◽  
Ji-Yeon Shin ◽  
Hyun-Joo Lee ◽  
Chul-Hee Jung ◽  
Kyeong-Hyeon Park ◽  
...  
Keyword(s):  
High Tibial Osteotomy ◽  
Lateral Meniscus ◽  
Lateral Compartment ◽  
Clinical Results ◽  
Discoid Lateral Meniscus ◽  
Tibial Osteotomy ◽  
Open Wedge ◽  
Factors Affecting ◽  
The Mean ◽  
Open Wedge Hto

Background: There are concerns about the progression of the lateral osteoarthritis (OA) should be taken into account when high tibial osteotomy (HTO) is performed in patients with discoid lateral meniscus (LM). This study evaluated the clinical results of HTO in patients with discoid LM and elucidated factors affecting the results. Methods: This study evaluated 32 female patients with varus deformity and medial OA. Patients with discoid LM (8 patients) or without discoid LM (24 patients) underwent open-wedge HTO. The mean age was 53.5 years and the mean follow-up period was 35 months. Clinical results, including the Hospital for Special Surgery (HSS) score, Knee Society knee score (KS) and function score (FS), were evaluated. The progression of OA in the lateral compartment was also evaluated. Finally, we evaluated the factors affecting the clinical results and OA progression in the lateral compartment. Results: Between two groups, all clinical scores were not different (p = 0.964, 0.963, and 0.559, respectively). Three of eight patients (37.5%) in the discoid group developed OA in the lateral compartment, whereas 2 of 24 patients (8.3%) in the control group developed such; however, this was not significantly different (p = 0.085). In discoid group, patients with undercorrection has higher KS relative to patients with acceptable correction (p = 0.044). Other clinical results and OA change in the lateral compartment were not affected by evaluated factors. Conclusions: Patients who underwent open-wedge HTO showed the satisfactory clinical results and lateral OA progression regardless of the presence or absence discoid LM. However, when discoid LM was present, patients with undercorrection showed higher KS in comparison with patients with acceptable correction.

scholarly journals The features of the coastal fronts in the Eastern Guangdong coastal waters during the downwelling-favorable wind period

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chaoyu Yang ◽  
Haibin Ye
Keyword(s):  
Coastal Waters ◽  
Meteorological Data ◽  
Pearson Correlation ◽  
Ocean Model ◽  
Ekman Pumping ◽  
Zonal Distribution ◽  
Factors Affecting ◽  
China Sea ◽  
Hybrid Coordinate Ocean Model ◽  
The Mean

AbstractA coastal front was detected in the eastern Guangdong (EGD) coastal waters during a downwelling-favorable wind period by using the diffuse attenuation coefficient at 490 nm (Kd(490)). Long-term satellite data, meteorological data and hydrographic data collected from 2003 to 2017 were jointly utilized to analyze the environmental factors affecting coastal fronts. The intensities of the coastal fronts were found to be associated with the downwelling intensity. The monthly mean Kd(490) anomalies in shallow coastal waters less than 25 m deep along the EGD coast and the monthly mean Ekman pumping velocities retrieved by the ERA5 dataset were negatively correlated, with a Pearson correlation of − 0.71. The fronts started in October, became weaker and gradually disappeared after January, extending southwestward from the southeastern coast of Guangdong Province to the Wanshan Archipelago in the South China Sea (SCS). The cross-frontal differences in the mean Kd(490) values could reach 3.7 m−1. Noticeable peaks were found in the meridional distribution of the mean Kd(490) values at 22.5°N and 22.2°N and in the zonal distribution of the mean Kd(490) values at 114.7°E and 114.4°E. The peaks tended to narrow as the latitude increased. The average coastal surface currents obtained from the global Hybrid Coordinate Ocean Model (HYCOM) showed that waters with high nutrient and sediment contents in the Fujian and Zhejiang coastal areas in the southern part of the East China Sea could flow into the SCS. The directions and lengths of the fronts were found to be associated with the flow advection.

The prediction of voluntary intake of grazing dairy cows

1986 ◽  
Vol 107 (1) ◽  
pp. 43-54 ◽  
Author(s):  
Lindsey Caird ◽  
W. Holmes
Keyword(s):  
Organic Matter ◽  
Measurement Techniques ◽  
Live Weight ◽  
Simple Equation ◽  
Factors Affecting ◽  
Farm Planning ◽  
Sward Height ◽  
The Mean ◽  
Major Factors ◽  
Grazing Dairy Cows

SUMMARYInformation on the total organic matter intake, concentrates supplied (C), live weight (LW), week of lactation (WL), milk yield (MY), herbage organic matter digestibility (HOMD), herbage mass, sward height (SHT) or herbage allowance (HAL) measured individually for 357 cows at one of three sites was assembled. Observed intake was compared with intakes predicted by existing intake equations and new prediction equations based on regression models or regression and least-squares constants were developed. Major factors affecting intake were MY, LW, WL, C and HAL or SHT. Although HOMD was correlated with intake, better predictions were obtained when HOMD was omitted. There were differences between sites possibly associated with differences in measurement techniques.The predictive value of some existing equations and new equations were tested against independent sets of data. A simple equation (A) based on MY and LW (Ministry of Agriculture, Fisheries and Food, 1975) gave satisfactory average predictions but the mean square prediction error (MSPE) was high. The equations of Vadiveloo & Holmes (1979) adjusted for bias gave a relatively low MSPE. The preferred new equations for grazing cattle included MY, LW, WL, C and HAL or SHT, and their MSPE were similar to or lower than for indoor equations.The discussion indicates that a simple equation (A) would give adequate predictions for farm planning. The more detailed equations illustrate the inter-relations of animal with sward conditions and concentrate allowances. Predicted intakes may deviate from actual intakes because of short-term changes in body reserves.

Factors affecting the use of space by two rodent species in Brazilian Atlantic forest

Mammalia ◽  
2004 ◽  
Vol 68 (2-3) ◽  
Author(s):  
Helena Godoy Bergallo ◽  
William E. Magnusson
Keyword(s):  
Home Range ◽  
Atlantic Forest ◽  
Rodent Species ◽  
Maximum Distance ◽  
Brazilian Atlantic Forest ◽  
Factors Affecting ◽  
Use Of Space

The main purpose of this study was to determine whether the maximum distance traveled and home range area of

Ecological factors affecting gene flow in the Brachionus plicatilis complex (Rotifera)

Oecologia ◽  
1997 ◽  
Vol 111 (3) ◽  
pp. 350-356 ◽  
Author(s):  
Africa Gómez ◽  
María José Carmona ◽  
Manuel Serra
Keyword(s):  
Gene Flow ◽  
Brachionus Plicatilis ◽  
Ecological Factors ◽  
Factors Affecting

Factors affecting changes in the intraocular pressure after phacoemulsification surgery

2020 ◽  
Vol 1 (3) ◽  
pp. 166-172
Author(s):  
Rita Dhamankar ◽  
◽  
Suhas S Haldipurkar ◽  
Tanvi Haldipurkar ◽  
Vijay Shetty ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Anterior Chamber ◽  
Axial Length ◽  
Anterior Chamber Depth ◽  
The Other ◽  
Factors Affecting ◽  
Factors Associated ◽  
Post Surgery ◽  
Unit Increase ◽  
The Mean

AIM: To assess the changes in anterior chamber parameters and examine the factors associated with changes in the intraocular pressure (IOP) in individuals who have undergone phacoemulsification surgery. METHODS: It is a longitudinal analysis of secondary clinical data collected from 105 non-glaucomatous eyes (82 patients) undergoing a cataract surgery. We studied the association between anterior chamber parameters, grade of cataract, demographics, and changes in the IOP over a period of three weeks. We also evaluated the association between the pressure-depth (PD) ratio and changes in the IOP during this time. RESULTS: The mean age (SD) of the 82 patients was 60.1±7.8y. The mean±standard deviation (SD) IOP was 15.06±3.36 mm Hg pre-operatively; it increased to 15.75±4.21 mm Hg on day one (P=0.20). In the multifactorial models, the mean IOP was -1.715 (95%CI: -2.795, -0.636) mm Hg on day 21±5 compared with the pre-operative values. The anterior chamber depth (ACD), axial length, age, sex, and grade of cataract were not significantly associated with changes in the IOP. Each unit increase in the PD ratio was associated with an increase in the mean IOP by 1.289 mm Hg (95%CI: 0.906, 1.671). After adjusting for pre-operative PD ratio, none of the other variables (ACD, axial length, temporal angle) were significantly associated with changes in mean IOP. CONCLUSION: The PD ratio was the single most important factor associated with the changes in post-operative IOP over three weeks post-surgery.

scholarly journals Analyzing the Effect of the Senior Management’s Support on the Relationship between Factors Affecting and Employees’ Performance in the Al-Zawiya University of Libya

2017 ◽  
Vol 13 (3) ◽  
pp. 42
Author(s):  
Nasreddin Ramadhan Dukhan ◽  
Norhisham Mohamad ◽  
Asbi B Ali
Keyword(s):  
Likert Scale ◽  
Factors Affecting ◽  
The Mean ◽  
Multiple Groups ◽  
Strongly Agree ◽  
The Impact ◽  
The Relationship ◽  
Variable Performance

This study aims to test the influence of the senior management’s support as a moderating variable on the relationship between the independent factors (Training, Empowerment, Motivation and Communication) and the dependent variable (Performance of Employees). (SEM-AMOS) is used to test the impact of the moderating variable. Where it is depended on the method of sampling or analysis of what is known as multiple-groups analysis. The paragraphs of the senior management’s support variable are collected and divided into two groups according to the mean of the total paragraphs. In addition, according to the relative weights given to the paragraphs of the questionnaire, using a five- point’s Likert scale: 1= strongly disagree to 5 = strongly agree. The first group consisted of the grades less than the mean and it is considered as the group which is non-supporters of the existence of support. While the second group consisted of the grades higher than the mean and considered as the group which is a supporter of the existence of support. The study found that the model of study in the presence of the support of the senior management’s is appropriate for the second group and inappropriate in light of the lack of support by the senior management’s support for the first group.

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