scholarly journals Effect of different levels of fertilizers and forecrops on rheological properties of winter wheat

2019 ◽  
Vol 8 (1-2) ◽  
pp. 47-52
Author(s):  
Zoltán Magyar ◽  
Péter Pepó ◽  
Ernő Gyimes
Keyword(s):  
Correlation Analysis ◽  
Water Absorption ◽  
Rheological Properties ◽  
Sweet Corn ◽  
Rheological Parameters ◽  
Favourable Effect ◽  
Strong Positive Correlation ◽  
Positive Correlation ◽  
L Value ◽  
Different Levels

During our experiments in 2017/2018 crop year at Látókép Experimental Farm of University of Debrecen we studied the effect of different forecrops (sweet corn, sunflower) and increased dosages of artificial fertilizers (control, N90PK, N150PK) on rheological properties of wheat. Both levels of artificial fertilizers significantly improved valorigraphic water absorption (WA), quality number (VQN) and dough-stability (DST), moreover alveographic L and W value. Applying artificial fertilizers valorigraphic mixing-tolerance (DMT) and dough softening (DS) values were decreased significantly comparing to the control ones. Sweet corn as a forecrop had significantly favourable effect on VQN, DDT, DST, DS and DMT; promylographic ductility; alveographic L values comparing to sunflower. Fertilizing x forecrop interaction affected in a significant way the DMT and P/L value. In addition, fertilizing x cultivar interaction had significant effect on alveographic L, promylographic ductility and ratio. Using Pearson’s correlation analysis results, fertilizer dosages were in strong positive correlation with VQN and DDT; alveographic L and W. The alveographic W was in strong positive correlation with promylographic energy (r=0,842**) and DST (r=0,863**), while the L was in medium positive correlation with promylographic ductility (r=0,744**). Our results proved that, the wheat flour’s rheological parameters are significantly affected by fertilizing dose, forecrop and cultivar

scholarly journals Slaughter Results, Meat Chemical Composition and pH of Aberdinangus, Hereford and Limousin bulls

2021 ◽  
Vol 46 (341) ◽  
pp. 13-21
Author(s):  
Inga Muizniece ◽  
Daina Kairisa
Keyword(s):  
Chemical Composition ◽  
Correlation Analysis ◽  
Iron Content ◽  
Ph Value ◽  
Sustainable Use ◽  
Carcass Weight ◽  
Strong Positive Correlation ◽  
Positive Correlation ◽  
Dressing Percentage ◽  
Total Fat

Abstract Beef production must combine the interests of both producers and consumers, taking into account the sustainable use of environmental resources. The aim of the study was to analyze and compare the slaughter results, meet chemical composition and pH value of three beef breeds – Aberdinangus (AA), Hereford (HF) and Limousin (LI) bulls. The bulls were fattened on Latvian and Lithuanian farms, mainly using grass forage. The breed and age of bulls before slaughter significantly affected all slaughter results, except for fat class. From the meat chemical composition traits, the bull breed and age before slaughter had a significant effect only on the protein content. LI bulls showed the highest carcass weight 301.1±6.8 kg (p<0.05), dressing percentage 58.2±1.1% (p<0.05) and conformation score 3.56±0.18 points. The best fattened carcasses were obtained from AA bulls - 2.43±0.20 points. Muscle samples of musculus longissimus (M. longissimus) bulls of LI breed showed higher content of moisture (72.0±1.0%), protein (23.0±0.2%), ash (1.1±0.0%) and cholesterol (56.7±6.6 mg 100 g−1). AA breed bulls showed higher total fat (6.6±1.2%) and iron content (13.1±0.6 mg). The highest pH was observed in the meat obtained from AA bulls – 6.0±0.1, LI and HF breed bulls showed pH 5.8±0.0 and 5.8±0.1 respectively. Correlation analysis showed a significant, strong positive correlation between cold carcass weight and dressing percentage for AA and LI bulls, r=0.90 and r=0.88, respectively. For LI breed bulls, a strong positive correlation was also found between the cold carcass weight and the conformation score (r=0.98, p<0.01).

scholarly journals Pattern and Sweep Visual Evoked Potential in the Objective Determination of Visual Acuity

2018 ◽  
Author(s):  
Mualla Hamurcu
Keyword(s):  
Visual Acuity ◽  
Correlation Analysis ◽  
Visual Evoked Potential ◽  
Evoked Potential ◽  
Strong Positive Correlation ◽  
Positive Correlation ◽  
Weak Positive Correlation ◽  
Snellen Chart ◽  
Sweep Visual Evoked Potential ◽  
Visual Evoked

Abstract Background: To investigate the effects of pattern visual evoked potential (pVEP) and sweep visual evoked potential (sVEP) on the accurate visual acuity (VA) measurement in adults. Methods: Medical files of 282 eyes of 141 patients who underwent VA measurement in our electrophysiology laboratory and did not undergo simulation were retrospectively analyzed. The VA was measured using the Snellen chart. Only those with a VA of higher than 1/10 on the Snellen chart were included in the study. The VA was assessed and reported by the pVEP (VA-pVEP) and sVEP test (VA-sVEP). The correlation analysis was performed using the Pearson correlation analysis. Results: Of 141 patients, 92 were males and 49 were females with a mean age of 37.7±18.4 years. There was a strong positive correlation between the VA values obtained from both eyes by pVEP (VA-pVEP) (r=0.858, p<0.001). There was a weak positive correlation (r=0.267, p<0.001) between the VA measured by the Snellen chart and the VA measured by the sVEP (VA-sVEP). A weak positive correlation was found for the VA-pVEP and VA-sVEP (r=0.313, p<0.001). Conclusions: For the measurement of the degree of the VA, it seems reasonable to use pVEP initially, while sVEP should be used in cases with short attention span and those who are non-cooperative and in infants.

scholarly journals Correlation between Beliefs on Translation and the Use of It as an English Learning Strategy

2020 ◽  
Vol 1 (02) ◽  
pp. 196-209
Author(s):  
Mega Fariziah Nur Humairoh ◽  
Febrina Rizky Agustina
Keyword(s):  
Correlation Analysis ◽  
Undergraduate Students ◽  
Learning Strategy ◽  
T Test ◽  
Correlational Study ◽  
English Learning ◽  
Strong Positive Correlation ◽  
Positive Correlation ◽  
Significant Difference ◽  
Efl Students

This current study focuses its investigation on the correlation between students’ beliefs about the use of translation as an English learning strategy and the strategic use of translation in learning English by EFL students in Indonesia. This current study is aimed 1) to investigate the correlation between students’ beliefs and the use of translation as a learning strategy 2) to examine the developmental of the use of translation as a learning strategy across different year of study. One hundred seventeen undergraduate students, consisting 67 freshmen and 50 sophomores participated in this correlational study. The data were collected by frequency of an Indonesian Version of the Inventory for Beliefs about Translation for beliefs measurement and the Inventory for Translation as a Learning Strategy. Correlation and t-test were employed in the study.  Correlation analysis reveals that a strong positive correlation between students’ beliefs about translation and their use of translation as learning strategy. T-test finds the significant difference in the use of translation as learning strategy between freshman and sophomore learner.

scholarly journals Evaluating the Flour Properties under Different Levels of Particle Size Distribution and Fine Bran Content

2021 ◽  
Vol 4 (2) ◽  
pp. 147
Author(s):  
Zeyad A. Ahmed ◽  
Abeer S. Alhendi ◽  
Mohammed S. Hussein ◽  
Shaimaa A. Abed ◽  
Rana T. Alsallami
Keyword(s):  
Particle Size ◽  
Moisture Content ◽  
Particle Size Distribution ◽  
Water Absorption ◽  
Rheological Properties ◽  
Extraction Rate ◽  
Rheological Characteristics ◽  
Wheat Grains ◽  
Flour Properties ◽  
Different Levels

The main objective of this study was to determine the changes in the rheological characteristics of the flour produced by the industry mill Buhler AG 600 ton/day through adding big particles of flour, semolina, and fine bran (FB) to the produced flour. The study was conducted on mixed wheat grains (80% Iraqi wheat and 20% American Red wheat). After changing the directions of some pipes in the milling section, the flours were tested, and the effect of having bigger particles in the product was measured. The results showed that the flour extraction rate, moisture content, ash, and protein were increased as the flour particle size was increased. Farinograph results explained a clear effect of big particles and fine bran on increasing the water absorption, however, the dough stability was decreased mostly insignificantly. Extensiograph results showed that there was no big difference between the control flour and other produced flour. Therefore, the changes of the mill pipes could increase the flour extraction rate and reduce the pressure on the mill rolls without significant differences in the rheological properties of the produced flour.

scholarly journals The Role of Salt Form and Concentration on the Rheological Properties of Bakery Products

2016 ◽  
Vol 10 (1) ◽  
pp. 64-70
Author(s):  
Zoltán Győri ◽  
Péter Sipos
Keyword(s):  
Sodium Chloride ◽  
Rheological Properties ◽  
Sensory Analysis ◽  
Rheological Parameters ◽  
Inorganic Salts ◽  
Favourable Effect ◽  
Bakery Products ◽  
Salt Form ◽  
Salt Forms

The effect of different salt forms and concentrations were evaluated on the rheological properties of dough made from wheat and rye flours. Our aim was to investigate that how does the sodium chloride change the properties of gluten network and therefore the structure of bakery products and what effects can be experienced when it is substituted by other organic and inorganic salts. Different rheological tests were used to monitor the effects on dough (Farinograph, Alveograph and Extensigraph tests) and on the end-product (texture analysis, sensory analysis). It was found that all the salt forms significantly influenced the rheological parameters of dough and not the sodium chloride addition had the most favourable effect in every case.

scholarly journals Involvement of older people in employment in Latvia

2020 ◽  
Author(s):  
Janis Kudins ◽  
Keyword(s):  
Regression Analysis ◽  
Correlation Analysis ◽  
Older People ◽  
Labour Market ◽  
Strong Positive Correlation ◽  
Data Correlation ◽  
Employment Level ◽  
Positive Correlation

Demographic transformation and increase of older people in Europe have encouraged discussions regarding how economics could help older people to grow old in a dignified way and be active in labour market. In Latvia the term older people is usually applied to pensioners. In this research the author analysed the number of pensioners in Latvia from 2012 till 2018, as well as change of pensioners’ employment level in population aged 45 and over. This research showed that 63.1 % of pensioners (45 years old and over) in Latvia were employed in 2018. Compared to 2012 the amount of employed pensioners in 2018 has increased by 10.2 %. Regression analysis between employed pensioners and average pension in Latvia from 2004 till 2018 shows a statistically significant linear interrelationship (R2 = 0,723) but the data correlation analysis shows a strong positive correlation (r = 0,850).

scholarly journals Effect of Combination of Salt and pH on Functional Properties of Frozen-Thawed Egg Yolk

Agriculture ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 257
Author(s):  
Karina Ilona Hidas ◽  
Ildikó Csilla Nyulas-Zeke ◽  
Anna Visy ◽  
László Baranyai ◽  
Lien Phuong Le Nguyen ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Citric Acid ◽  
Rheological Properties ◽  
Functional Properties ◽  
Apparent Viscosity ◽  
Frozen Storage ◽  
Egg Yolk ◽  
Emulsifying Properties ◽  
L Value ◽  
Different Levels

Egg yolk undergoes an irreversible gelation process at temperatures below −6 °C, which greatly impairs its application and increases its apparent viscosity. This work was aimed to investigate the effect of salt and pH in preventing the gelation of frozen-thawed egg yolk. Before freezing, 5% of salt was added into the pasteurized liquid egg yolk, then pH was adjusted to different levels (5.7, 6.0 and 6.3) with citric acid. After that, the yolk was stored at −18 °C for four weeks. Rheological and thermal properties of the fresh and frozen-thawed egg yolk were measured. In addition, the colour, turbidity and emulsifying properties were also determined. The results showed that pH of all samples increased during frozen storage, but at different rates. The combination of 5% of salt and pH at 6.0 and 6.3 could prevent the gelation, resulting in rheological properties more like the fresh liquid egg yolk. In addition, emulsifying properties also obtained better results for treated yolk. Moreover, L* value of treated egg yolk was higher before freezing and became lower after storage compared to control. The results of this work found that the combination of 5% of salt and adjusted pH could prevent the gelation of frozen-thawed liquid yolk.

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.

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.

Sign in / Sign up

Export Citation Format

Share Document