scholarly journals The Effect of Consuming a Liquid Diet vs a Solid Diet 24-hr Preexperimental Trials on Adherence in Athletes

2019 ◽  
Vol 29 (5) ◽  
pp. 493-497
Author(s):  
Alaaddine El-Chab ◽  
Charlie Simpson ◽  
Helen Lightowler
Keyword(s):  
Dietary Intake ◽  
Coefficient Of Variation ◽  
Liquid Diet ◽  
Strong Positive Correlation ◽  
Effective Technique ◽  
Positive Correlation ◽  
Solid Diet ◽  
Lower Variability ◽  
The Cost ◽  
Standardization Technique

Discrepancies in energy and macronutrient intakes between tests are apparent even when a solid prepackaged diet (Sdiet) is used to standardize dietary intake for preexperimental trials. It is unknown whether a liquid prepackaged diet (Ldiet) leads to improved adherence, resulting in lower variability in energy and macronutrient intakes. This study assesses the ability of athletes to replicate a diet when an Ldiet or Sdiet was used as a dietary standardization technique. In a cross-over design, 30 athletes were randomly assigned to either Sdiet or Ldiet. Each diet was consumed for two nonconsecutive days. Participants were instructed to consume all the meals provided and to return any leftovers. The coefficient of variation (CV) was calculated for each nutrient for the two methods and reported as the average CV. The Bland–Altman plots show that differences between Days 1 and 2 in energy and macronutrient intakes for both diets were close to zero, with the exception of some outliers. The %CV for Sdiet was higher than Ldiet (5% and 3% for energy, 5% and 3% for carbohydrate, 5% and 2% for protein, and 5% and 3% for fat, respectively). There was a strong positive correlation for energy and all macronutrients between Days 1 and 2 for both methods (r > .80; p < .05). Ldiet is an effective technique to standardize diet preexperimental trials and could be used as an alternative to Sdiet. Furthermore, Ldiet may lead to additional improvements in the compliance of participants to the diet and also decrease the cost and time of preparation.

scholarly journals P1106DETERMINANTS OF SERUM POTASSIUM IN HEMODIALYSIS PATIENTS. DOES JUST ONE COUNT?

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Giuseppe Sileno ◽  
Silvia Brazzo ◽  
Paola Baiardi ◽  
Massimo Torreggiani ◽  
Vittoria Esposito ◽  
...  
Keyword(s):  
Dietary Intake ◽  
Serum Potassium ◽  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Strong Positive Correlation ◽  
Serum Bicarbonate ◽  
Positive Correlation ◽  
Arterial Blood ◽  
Spearman Test

Abstract Background and Aims Potassium (K) is mostly an intracellular ion, with a complex homeostasis that is deeply modified in ESRD patients undergoing hemodialysis (HD). Several factors (diet, insulin, acid-base balance, aldosterone, etc) may contribute to determine the level of serum extracellular K, but it is not clear which factor contributes the most. We aimed to evaluate the importance of several factors in inducing hyperkalemia in HD patients. Methods Chronic tri-weekly HD patients were evaluated. Patients on diuretics or on potassium binders were excluded. For every patient we recorded age, sex, Kt/V and we measured the post-HD kalemia on the day before the long interHD interval. On the day after the long interHD interval we evaluated: pre-HD K, glucose, creatinine, aldosterone, LDH, CPK, arterial blood gases, ECG, overhydration by bioelectrical impedance analysis, body weight increase after the long interHD interval and daily urinary output. K amount introduced by diet was calculated by a dietitian from each patient’s daily food diary. Treatment with ARB, ACE-inhibitors, beta-blockers, insulin or heparin was recorded. Data are presented as mean±SD for each variable analyzed. Correlations between the serum K values and change in serum K (delta K) and the other patient medical data were determined through the two-tailed Pearson’s test or Spearman test according to data distribution. Results We enrolled 56 patients (male 53.6%), aged 72±13, with a mean Kt/V 1.44±0.25. Mean post-HD kalemia was 3.65±0.4 mmol/L, mean pre-HD kalemia was 5.23±0.72 mmol/L, with a mean delta 1.58±0.64 mmol/L. Medium pH was 7.37±0.01, with serum bicarbonate 20.15±4.0 mmol/L. Overhydration estimated by bioelectrical impedance analysis was 2.3±0.6 L, while mean daily intake of K was 1697.13±711.13 mg. We found a strong positive correlation between delta K and pre-HD kalemia (r=0.79, p&lt;0.0001). Surprisingly, a positive correlation was found between delta K and serum bicarbonate (r=0.27, p=0.04), while no correlations were present between delta K, mean pre-HD kalemia and dietary intake of K (p=ns). No difference in delta K was found between anuric and not anuric patients. No other statistically significant differences were found. Conclusion Potassium homeostasis is markedly altered in ESRD and several factors contribute to determine the serum K values. In this study we found that delta potassium correlates to pre-HD kalemia. We did not study the temporal kinetic of K increase, but it is reasonable to infer that a significant post-HD rebound may contribute to increase kalemia, as dietary intake of K was not found to correlate to delta K or to serum K after the long interdialytic interval. The positive correlation between delta K and serum bicarbonate is unexpected and difficult to explain. However, since we did not measure serum bicarbonate post-HD, we may speculate that patients with high delta K and serum bicarbonate might have even higher levels of bicarbonate after HD. In conclusion, our study shows that none of the examined factors prevales in determining high serum potassium in HD patients.

scholarly journals Genetic Evaluation and Correlation Analysis Among Various Quantitative Traits in Maize Single-Cross Hybrids Under Diverse Environments

2021 ◽  
Vol 13 (5) ◽  
pp. 104
Author(s):  
Fortunate Makore ◽  
Cosmos Magorokosho ◽  
Shorai Dari ◽  
Edmore Gasura ◽  
Upenyu Mazarura ◽  
...  
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Coefficient Of Variation ◽  
Strong Positive Correlation ◽  
Genetic Advance ◽  
Positive Correlation ◽  
Grain Moisture ◽  
High Heritability ◽  
Ear Height ◽  
Positive Direct

Genetic variation abundance, high genetic advance coupled with high heritability estimates presents the most suitable condition for selection. Ninety-five hybrids generated from elite and new inbred lines crossed using half diallel mating design were evaluated under diverse environments. The objectives were to estimate genetic variances, heritability of traits and genetic advance and to determine correlations of grain yield and its component characters in maize hybrids. Analysis of variance revealed significant differences among genotypes for all traits studied except for ear rots. Estimates of phenotypic coefficient of variation were slightly higher than genotypic coefficient of variation for all traits suggesting low influence of environment in the expression of these traits. High heritability and genetic estimates were recorded for grain yield (79%; 30.27%), plant height (85%; 102.42%) and ear height (86%; 117.15%) whilst high heritability and low genetic advance were observed for anthesis date (87%; 5.8%), texture (75%; 8%) and ear position (71%; 0.23%). Correlation between environments using grain yield data revealed existence of a very strong positive correlation between CIMMYT2 and RARS2 suggesting that the sites have the same discriminating effect. Correlation among traits revealed that grain yield had significant (P &lt; 0.05) positive correlation with plant height and ear height. Similarly, plant height had significant and positive correlation with ear height while ear position was positively correlated to ear height. Path analysis showed that plant height, ears per plant and ear position had positive direct effects on grain, while anthesis date, ear height, ear position, grain moisture content at harvest and texture indirectly influenced grain yield. These characters&rsquo; contribution to grain yield is important and the strong association with grain yield implied that these can be used as secondary traits to indirectly select for grain yield performance in this set of germplasm across all the environments.

The Strong Positive Correlation between Factor VII Clotting Activity Using Bovine Thromboplastin and the Activated Factor VII Level

1995 ◽  
Vol 73 (03) ◽  
pp. 429-434 ◽  
Author(s):  
Kazuomi Kario ◽  
Takefumi Matsuo ◽  
Reiko Asada ◽  
Toshiyuki Sakata ◽  
Hisao Kato ◽  
...  
Keyword(s):  
Risk Factor ◽  
Bovine Brain ◽  
Factor Vii ◽  
Rabbit Brain ◽  
Strong Positive Correlation ◽  
Chromogenic Substrate ◽  
Moderate Correlation ◽  
Positive Correlation ◽  
Activated Factor Vii

SummaryWe compared factor VII clotting activity (FVIIc) assays using different thromboplastins to determine which is the most sensitive for activated FVII (FVIIa) or for FVII antigen (FVIIag). FVIIc levels were measured using thromboplastins derived from bovine brain (FVIIc Bov), human placenta (FVIIc Hum), and rabbit brain (FVIIc Rab). FVIIa levels were measured by fluorogenic assays using human soluble tissue factor (rsTF) or bovine rsTF. We also measured FVII activity by an amidolytic assay (FVIIc:am Hum) using human thromboplastin and a chromogenic substrate for thrombin. FVIIag levels were determined by ELISA. In the FVIIa assay, the reaction time obtained from using bovine rsTF was shorter than that with human rsTF, suggesting that the interaction of plasma FVIIa with bovine rsTF was stronger than with human rsTF. The plasma FVIIa levels measured using human rsTF and bovine rsTF were almost the same (r=0.947, p<0.0001). Among the three FVIIc assays, FVIIc Bov had the strongest positive correlation with the plasma FVIIa level (r=0.886, p<0.000l), but had no correlation with FVIIag. An increase of 1 ng/ml in the plasma FVIIa level yielded a 27.9% increase of FVIIc Bov. Plasma FVIIc Hum and FVIIc:am Hum showed moderate correlations with both FVIIa (r=0.520, p<0.02 and r=0.569, p<0.01, respectively) and FVIIag (r=0.438, p<0.05 and r=0.468, p<0.05, respectively). FVIIc Rab had the lowest correlation with FVIIa (r=0.367, p<0.1), but had a moderate correlation with FVIIag (r=0.436, p<0.05). After in vitro cold activation, FVIIc Bov levels increased the most and FVIIc:am levels showed the least change. These findings indicate that consideration of the thromboplastin used for assay is necessary when assessing the clinical significance of FVII activity as a cardiovascular risk factor.

Design and development of manually operated gladiolus planter

2018 ◽  
Vol 5 (01) ◽  
Author(s):  
TAPAN K. KHURA ◽  
H. L. KUSHWAHA ◽  
SATISH D LANDE ◽  
PKSAHOO . ◽  
INDRA L . KUSHWAHA
Keyword(s):  
Coefficient Of Variation ◽  
Field Capacity ◽  
Power Source ◽  
Forward Speed ◽  
Cereal Crop ◽  
Maximum Coefficient ◽  
Coefficient Of Uniformity ◽  
The Mean ◽  
The Cost ◽  
Immense Potential

Floriculture is an age-old farming activity in India having immense potential for generating selfemployment and income to farmers. However, the cost of cultivation of flower is high as compared to cereal crop. Level of mechanization for different field operations is one but foremost reason for the higher cost of cultivation. As most of the Indian farmers are marginal and small, a need for manually operated gladiolus planter was felt. The geometric properties of gladiolus corm were determined for designing the seed metering system and seed hopper of the planter. The planter was evaluated in the field when pulled by two persons as a power source and guided by a person. The coefficient of variation and highest deviation from the mean spacing was observed as 12.93% and 2.65cm respectively. The maximum coefficient of uniformity of 90.59% was observed for a nominal corm spacing of 15cm at 0.56 kmh-1 forward speed. An average MISS percentage was observed as 2.65 and 2.25 for nominal corm spacing of 15 and 20 cm. The multiple index was zero for two levels corm spacing and forward speed of operation. The QFI was found in the range of 97.2 and 97.9 percent. The average field capacity of the planter was observed as 0.02 hah-1.The average draft requirement of the planter was found as 821 ± 50.3 N.

scholarly journals Microsatellite Variation and Recombination Rate in the Human Genome

Genetics ◽  
2000 ◽  
Vol 156 (3) ◽  
pp. 1285-1298 ◽  
Author(s):  
Bret A Payseur ◽  
Michael W Nachman
Keyword(s):  
Recombination Rate ◽  
Microsatellite Polymorphism ◽  
Published Data ◽  
Strong Positive Correlation ◽  
Background Selection ◽  
Recombination Rates ◽  
Microsatellite Variation ◽  
Positive Correlation ◽  
Genome Recombination ◽  
Neutral Mutations

Abstract Background (purifying) selection on deleterious mutations is expected to remove linked neutral mutations from a population, resulting in a positive correlation between recombination rate and levels of neutral genetic variation, even for markers with high mutation rates. We tested this prediction of the background selection model by comparing recombination rate and levels of microsatellite polymorphism in humans. Published data for 28 unrelated Europeans were used to estimate microsatellite polymorphism (number of alleles, heterozygosity, and variance in allele size) for loci throughout the genome. Recombination rates were estimated from comparisons of genetic and physical maps. First, we analyzed 61 loci from chromosome 22, using the complete sequence of this chromosome to provide exact physical locations. These 61 microsatellites showed no correlation between levels of variation and recombination rate. We then used radiation-hybrid and cytogenetic maps to calculate recombination rates throughout the genome. Recombination rates varied by more than one order of magnitude, and most chromosomes showed significant suppression of recombination near the centromere. Genome-wide analyses provided no evidence for a strong positive correlation between recombination rate and polymorphism, although analyses of loci with at least 20 repeats suggested a weak positive correlation. Comparisons of microsatellites in lowest-recombination and highest-recombination regions also revealed no difference in levels of polymorphism. Together, these results indicate that background selection is not a major determinant of microsatellite variation in humans.

scholarly journals Changes in Antioxidative, Oxidoreductive and Detoxification Enzymes during Development of Aphids and Temperature Increase

Antioxidants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1181
Author(s):  
Roma Durak ◽  
Jan Dampc ◽  
Monika Kula-Maximenko ◽  
Mateusz Mołoń ◽  
Tomasz Durak
Keyword(s):  
Antioxidant Enzymes ◽  
Enzymatic Activity ◽  
Antioxidant Enzyme ◽  
Temperature Increase ◽  
Enzyme System ◽  
Life Cycles ◽  
Detoxification Enzymes ◽  
Strong Positive Correlation ◽  
Positive Correlation ◽  
Antioxidant Enzyme System

Temperature, being the main factor that has an influence on insects, causes changes in their development, reproduction, winter survival, life cycles, migration timing, and population dynamics. The effects of stress caused by a temperature increase on insects may depend on many factors, such as the frequency, amplitude, duration of the stress, sex, or the developmental stage of the insect. The aim of the study was to determine the differences in the enzymatic activity of nymphs and adult aphids Aphis pomi, Macrosiphum rosae and Cinara cupressi, and changes in their response to a temperature increase from 20 to 28 °C. The activity of enzymatic markers (superoxide dismutase (SOD), catalase (CAT), glutathione S-transferase (GST), β-glucosidase, polyphenol oxidase (PPO) and peroxidase (POD)) in aphid tissues was analysed for three constant temperatures. The results of our research showed that the enzymatic activity of aphids (measured as the activity of antioxidant, detoxifying and oxidoreductive enzymes) was mainly determined by the type of morph. We observed a strong positive correlation between the activity of the detoxifying and oxidoreductive enzymes and aphids’ development, and a negative correlation between the activity of the antioxidant enzymes and aphids’ development. Moreover, the study showed that an increase in temperature caused changes in enzyme activity (especially SOD, CAT and β-glucosidase), which was highest at 28 °C, in both nymphs and adults. Additionally, a strong positive correlation between metabolic activity (heat flow measured by microcalorimeter) and longevity was observed, which confirmed the relationship between these characteristics of aphids. The antioxidant enzyme system is more efficient in aphid nymphs, and during aphid development the activity of antioxidant enzymes decreases. The antioxidant enzyme system in aphids appears to deliver effective protection for nymphs and adults under stressful conditions, such as high temperatures.

scholarly journals Vitamin D Status Among Children aged 2 months to 13 years-a Hospital Based Study

2018 ◽  
Vol 3 (1) ◽  
pp. 381-384
Author(s):  
Hem Sagar Rimal ◽  
Shripad J Walavalkar
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Urban Area ◽  
Serum Calcium ◽  
Winter Season ◽  
College Teaching ◽  
Vitamin D Insufficiency ◽  
P Value ◽  
Strong Positive Correlation ◽  
Positive Correlation

Introduction: Vitamin D is an important micronutrient having crucial role in calcium and phosphate homeostasis but there is emerging evidence to suggest its role in prevention of infectious, inflammatory and neoplastic diseases. The vitamin D insufficiency/deficiency is a widely recognized problem among children in developed as well as developing countries.Objective: To find out the prevalence of vitamin D deficiency/insufficiency among children aged 2 months to 13 yrs and its correlation with serum calcium, phosphate and demographic factors.Methodology: Prospective, cross sectional, hospital based study conducted at Birat Medical College Teaching Hospital for a period of one year among children presented to pediatric OPD in whom pediatrician had a suspicion of Vitamin D Insufficiency /Deficiency. Venous blood Samples were taken for the estimation of 25(OH) Vitamin D, Calcium and Phosphate. Statistical analysis was done using SPSS software version 16. Results Among 174 children aged 2 months to 13 years, the prevalence of vitamin D insufficiency at the cutoff of <30ng/ml was 82.75% where as no cases of vitamin D deficiency was noted at cut off level of < 10 ng/ml. Children residing in urban area, samples taken in the winter season had higher prevalence of vitamin D insufficiency (p value <0.05). Serum calcium and phosphate level were found positively correlated with Vitamin D level (p<.05). However the relationship was very strong between Vitamin D and Calcium (r=0.402, p-value <0.001) and weak positive correlation was noted with phosphate(r=0.155, p value <0.05).Conclusion: There is very high prevalence of Vitamin D insufficiency among children. The vitamin D insufficiency was significantly higher in winter season as compared to summer. Children living in the urban area are more prone to Vitamin D insufficiency. Moderately strong positive correlation was observed between Vitamin D level and calcium but weak correlation existed with phosphate. BJHS 2018;3(1)5 : 381-384

scholarly journals Spatial Variation of the Relationship between PM2.5Concentrations and Meteorological Parameters in China

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
Gang Lin ◽  
Jingying Fu ◽  
Dong Jiang ◽  
Jianhua Wang ◽  
Qiao Wang ◽  
...  
Keyword(s):  
Negative Correlation ◽  
Meteorological Parameters ◽  
Semiarid Region ◽  
Strong Positive Correlation ◽  
Annual Average ◽  
Strong Negative Correlation ◽  
Positive Correlation ◽  
Humid Region ◽  
The Relationship ◽  
Warm Temperate

Epidemiological studies around the world have reported that fine particulate matter (PM2.5) is closely associated with human health. The distribution of PM2.5concentrations is influenced by multiple geographic and socioeconomic factors. Using a remote-sensing-derived PM2.5dataset, this paper explores the relationship between PM2.5concentrations and meteorological parameters and their spatial variance in China for the period 2001–2010. The spatial variations of the relationships between the annual average PM2.5, the annual average precipitation (AAP), and the annual average temperature (AAT) were evaluated using the Geographically Weighted Regression (GWR) model. The results indicated that PM2.5had a strong and stable correlation with meteorological parameters. In particular, PM2.5had a negative correlation with precipitation and a positive correlation with temperature. In addition, the relationship between the variables changed over space, and the strong negative correlation between PM2.5and the AAP mainly appeared in the warm temperate semihumid region and northern subtropical humid region in 2001 and 2010, with some localized differences. The strong positive correlation between the PM2.5and the AAT mainly occurred in the mid-temperate semiarid region, the humid, semihumid, and semiarid warm temperate regions, and the northern subtropical humid region in 2001 and 2010.

Relationship amongst ResearchGate altmetric indicators and Scopus bibliometric indicators

2015 ◽  
Vol 116 (9/10) ◽  
pp. 564-577 ◽  
Author(s):  
RISHABH SHRIVASTAVA ◽  
Preeti Mahajan
Keyword(s):  
Sample Size ◽  
Correlation Coefficients ◽  
Strong Positive Correlation ◽  
Bibliometric Indicators ◽  
Pearson’S Correlation ◽  
Content Type ◽  
Positive Correlation ◽  
Pearson's Correlation ◽  
Different Characteristics ◽  
The Relationship

Purpose – The purpose of this paper is twofold. First, the study aims to investigate the relationship between the altmetric indicators from ResearchGate (RG) and the bibliometric indicators from the Scopus database. Second, the study seeks to examine the relationship amongst the RG altmetric indicators themselves. RG is a rich source of altmetric indicators such as Citations, RGScore, Impact Points, Profile Views, Publication Views, etc. Design/methodology/approach – For establishing whether RG metrics showed the same results as the established sources of metrics, Pearson’s correlation coefficients were calculated between the metrics provided by RG and the metrics obtained from Scopus. Pearson’s correlation coefficients were also calculated for the metrics provided by RG. The data were collected by visiting the profile pages of all the members who had an account in RG under the Department of Physics, Panjab University, Chandigarh (India). Findings – The study showed that most of the RG metrics showed strong positive correlation with the Scopus metrics, except for RGScore (RG) and Citations (Scopus), which showed moderate positive correlation. It was also found that the RG metrics showed moderate to strong positive correlation amongst each other. Research limitations/implications – The limitation of this study is that more and more scientists and researchers may join RG in the future, therefore the data may change. The study focuses on the members who had an account in RG under the Department of Physics, Panjab University, Chandigarh (India). Perhaps further studies can be conducted by increasing the sample size and by taking a different sample size having different characteristics. Originality/value – Being an emerging field, not much has been conducted in the area of altmetrics. Very few studies have been conducted on the reach of academic social networks like RG and their validity as sources of altmetric indicators like RGScore, Impact Points, etc. The findings offer insights to the question whether RG can be used as an alternative to traditional sources of bibliometric indicators, especially with reference to a rapidly developing country such as India.

scholarly journals Characterization of Black Carbon and Its Correlations with VOCs in the Northern Region of Hangzhou Bay in Shanghai, China

Atmosphere ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 870
Author(s):  
Fangfang Wang ◽  
Jialuo Xu ◽  
Yinzhi Huang ◽  
Guangli Xiu
Keyword(s):  
Global Warming ◽  
Black Carbon ◽  
Northern Region ◽  
Hangzhou Bay ◽  
Industrial Park ◽  
Strong Positive Correlation ◽  
Incomplete Combustion ◽  
Positive Correlation ◽  
Industrial Parks ◽  
Haze Pollution

Ozone and PM2.5 (all particulate matter with diameter of 2.5 µm or smaller) are currently two disturbing environmental issues in most cities of China. Black carbon (BC), mainly from incomplete combustion, is one of the most important components of PM2.5 because it can absorb light and contribute to haze pollution and global warming. Meanwhile, volatile organic compounds (VOCs) have become a major air pollutant due to their association with haze, ozone (O3), global warming and human health by direct or indirect processes. In this study, one year-long observation campaign of BC, VOCs and other conventional air pollutants was conducted in the Northern Region of the Hangzhou Bay (NRHB) in Shanghai, China. The results indicated that higher concentration of BC mainly occurred in the autumn and winter, especially in December. In December, higher BC concentrations were found when the air mass came from northwest where there is an important local freeway, or southwest where some adjacent southwest chemical industrial parks are located. Different from the characteristics of BC in urban areas reported by previous studies, the diurnal variation of BC exhibited three peaks, two of which coincided with the morning and evening rush hours which are related to the heavy diesel traffic from a nearby freeway, and the third peak was often found late at night, around 2 am, which might be associated with abnormal emissions from an industrial park or marine traffic in the ocean waterway. BC had weakly negative correlation with O3 and NO, and a strongly positive correlation with PM2.5, SO2, NO2 and NOx, which implies that some incomplete combustion sources might occur in the nearby regions. With regard to VOCs, BC had a strong positive correlation with alkane, alkenes, alkynes, aromatic and non-sulfur VOCs, particularly with aromatic organic matter. Unlike the stronger correlation with aromatics in the morning rush hours, a stronger correlation between BC and alkenes and alkynes during the evening rush hour was observed. The relationships between BC and VOCs, particularly with some specific VOCs species related to the neighboring chemical industrial park, demonstrated that the contribution of the surrounding chemical industrial parks to BC should not be neglected.

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