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| Registros recuperados: 43 | |
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| Silva,Paulo Sérgio Lima e; Silva,Kathia Maria Barbosa e; Lôbo,Raimundo Nonato Braga; Silva,Paulo Igor Barbosa e. |
| Measuring plant height (y) and canopy diameter (x) in trees may not be an easy task, but stem diameter (z) can be more easily evaluated. This work's objective was two-fold: evaluate the growth of species adapted to the Brazilian Semi-Arid Region in the first two years of age, and obtain linear equations to estimate y and x from z, in those species. A random block design with four replications was employed. The values for x, z, and y were measured biannually from October/2003 to March/2005. Prosopis juliflora and Mimosa caesalpiniaefolia showed the highest stem diameter and plant height values, respectively, and both showed the highest canopy diameter. In the equations to estimate plant height from the stem diameter the value of the coefficient of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caatinga; Canopy diameter; Plant height; Regression analysis; Stem diameter. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062007000400018 |
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| YENICE,HAYATI. |
| Abstract: Drillability is influenced by many factors, including machine parameters and rock properties. The main machine parameters for drilling include rotational speed, thrust force, torque and flush pressure. The specific rock characteristics that affect penetration rate comprise uniaxial compressive strength (UCS), tensile strength, Young’s modulus, hardness and brittleness. In this study, drilling rate index (DRI) is attempted to predict based on UCS and Brazilian tensile strength (BTS) of rocks. Simple and multiple regression analyses have been carried out to determine the best measure of the relation between DRI and two geomechanical properties. The DRI value is strongly related to the uniaxial compressive strength and indirect tensile strength.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Drillability; Uniaxial compressive strength; Tensile strength; Regression analysis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500906 |
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| Soto,Alonso; Solari,Lely; Agapito,Juan; Acuna-Villaorduna,Carlos; Lambert,Marie-Laurence; Gotuzzo,Eduardo; Stuyft,Patrick Van der. |
| This study developed a clinical score based on clinical and radiographic data for the diagnosis of smear-negative pulmonary tuberculosis (SNPT). SNPT was defined as a positive culture in Ogawa in a patient with two negative sputum smears. Data from patients admitted to the emergency ward with respiratory symptoms and negative acid-fast bacilli (AFB) smears was analyzed by means of logistic regression to develop the predictive score.Two hundred and sixty two patients were included. Twenty patients had SNPT. The variables included in the final model were hemoptysis, weight loss, age > 45 years old, productive cough, upper-lobe infiltrate, and miliary infiltrate. With those, a score was constructed. The score values ranged from -2 to 6. The area under the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tuberculosis; Pulmonary; Regression analysis; Scoring methods. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000200006 |
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| Nawaz,Haq; Shad,Muhammad Aslam; Rehman,Najiha; Andaleeb,Hina; Ullah,Najeeb. |
| The effect of solvent polarity on extraction yield and antioxidant properties of phytochemical compounds in bean seeds was studied. Seed flour of three varieties of bean was extracted in a series of organic solvents with increasing polarity (n-hexane, petroleum ether, chloroform, ethyl acetate, ethanol, acetone and water). Preliminary screening of phytochemicals showed the presence of tannins, flavonoids, cardiac glycosides, anthocyanins, terpenoids, carotenoids, ascorbic acid and reducing compounds in all extracts. One way analysis of variance (ANOVA) of results showed that extraction yield, phytochemical content and antioxidant properties were significantly influenced (p<0.05) by the polarity of extracting solvents. The regression analysis of data... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beans seeds/antioxidant properties; Phaseolus vulgaris/phytochemical composition; Regression analysis; Solvent polarity. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100501 |
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| AKIN,Ahmet Cumhur; CEVGER,Yavuz. |
| Abstract White cheese, kashar cheese, yogurt, and ayran are among the most common products produced by the dairy industry in Turkey. The present study determined the production cost of 1 kg of these packaged products as well as the financial implications on their distribution and the total cost. The study also estimated the cost factors affecting the profitability of the products by identifying the cost differences between production regions and scales, using a mean regression model for each product. The study used the data collected through a survey involving 15 dairy plants of three different sizes located in five different regions and involved in raw milk production. The study found a 2-year average capacity utilization rate of the businesses to be... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dairy industry; Economic; Cost; Husbandry; Regression analysis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000300781 |
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| Fragoso,Rosimeri de Oliveira; Stuepp,Carlos André; Rickli,Helena Cristina; Zuffellato-Ribas,Katia Christina; Koehler,Henrique Soares. |
| ABSTRACT: Prunus serrulata is a species widely used in the ornamentation and its economic importance is mainly due to the time of its flowering. The objective was to assess the feasibility of cutting technique for propagating P. serrulata , using stem cuttings from current-year shoots, and to estimate the maximum efficiency concentration of auxin indole butyric acid (IBA), in the promotion of rooting. Collection of plant material took place in late spring. Cuttings were made with about 8±1cm length and two leaves reduced to 50% of its original surface. Twenty one IBA concentrations have been assessed (0, 250, 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000, 3250, 3500, 3750, 4000, 4250, 4500, 4750 e 5000mg L-1), applied in base of cuttings,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Current-year shoots; Cutting technique; Ornamental species; Prunus serrulata; Regression analysis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000100203 |
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| COSTA NETO, G. M. F.; DUARTE, J. B.; CASTRO, A. P. de; HEINEMANN, A. B.. |
| A identificação dos fatores causais da interação genótipo x ambiente (GE) e a quantificação destes sobre a variação residual, não explicada pelos efeitos principais, são elementos-chave para o entendimento da adaptação fenotípica. Nos programas de melhoramento há a necessidade da tomada de decisões, como selecionar as linhagens nos ensaios multiambientais (MET). Métodos analíticos vinculados a protocolos de ambientipagem (caracterização ambiental) possibilitam inferências úteis à tomada de decisão, como a identificação de fatores ambientais e genotípicos determinantes da interação GE, a adaptabilidade e a estabilidade contempladas em função de fatores climáticos, edáficos e bióticos, a localização geográfica e o manejo cultural, a perspectiva de avaliação... |
| Tipo: Folhetos |
Palavras-chave: Regressão analítica; Interação genótipo x ambiente; Interação Genética; Genótipo; Sistema de Informação Geográfica; Condição Ambiental; Genotype-environment interaction; Regression analysis; Geographic information systems. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124389 |
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| Loisy, Fabienne; Atmar, R; Le Saux, Jean-claude; Cohen, J; Caprais, Marie-paule; Pommepuy, Monique; Le Guyader, Soizick. |
| Rotavirus virus-like particles (VLPs) and MS2 bacteriophages were bioaccumulated in bivalve mollusks to evaluate viral persistence in shellfish during depuration and relaying under natural conditions. Using this nonpathogenic surrogate virus, we were able to demonstrate that about 1 log(10) of VLPs was depurated after 1 week in warm seawater (22 degrees C). Phage MS2 was depurated more rapidly (about 2 log(10) in 1 week) than were VLPs, as determined using a single-compartment model and linear regression analysis. After being relayed in the estuary under the influence of the tides, VLPs were detected in oysters for up to 82 days following seeding with high levels of VLPs (concentration range between 10(10) and 10(9) particles per g of pancreatic tissue)... |
| Tipo: Text |
Palavras-chave: Seawater; Viral diseases; Bioaccumulation; Depuration; Contamination; Model; Pancreas; Regression analysis; Shellfish; Phages; Virus. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-1233.pdf |
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| Ilayperuma,Isurani. |
| Dimensional relationship between body segments and stature has been the focus of scientists for many years. All such studies were based on the fact that body segments exhibit consistent ratios relative to the stature and these ratios are linked to age, gender and race. Racial characters are best defined in the skull. Therefore, prediction of stature from cranial remains is vital in establishing the identity of an unknown individual. Despite its significance, little is known concerning the cranial dimensions in Sri Lankans. Hence, this study was designed to investigate the relationship and to propose a gender and age specific linear regression model between the cranial dimensions and height of an individual. A total of 400 subjects with an age span of 20-23... |
| Tipo: Journal article |
Palavras-chave: Cranial dimensions; Stature; Regression analysis; Sri Lanka. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400024 |
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| Rexhepi,Agron M; Brestovci,Behlul. |
| Morphometry is a non-invasive method important to assess the size, proportions, and composition of the human body. Because the prediction is an important subject in almost all life sciences, the aim of this research was to find out the cephalofacial variables that may predict the body height. Three cephalofacial variables and the body height were measured on 288 adult male subjects of the Kosovo Albanian population, aged 1835 years old. Using the procedures of regressive analysis we found that cephalofacial variables: head height, head circumferences, face height, significantly may predict body height, and in this way we derived the specific regression equation for estimation of the body height, based on these cephalofacial variables. The predicted body... |
| Tipo: Journal article |
Palavras-chave: Morphometry; Cephalofacial variables; Stature; Regression analysis. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000300055 |
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| Ilayperuma,I. |
| Cranial capacity exerts a close correlation with the volume of the brain. A large body of evidence shows a clear racial variation in cranial dimensions. Therefore detailed knowledge of the population specific data on biometric features of the cranial cavity is important in the study and comparison of the crania of populations from different racial backgrounds, assessing growth and development of an individual and in the diagnosis of any abnormalities of cranial size and shape. Despite its significance, little is known concerning the cranial capacity in Sri Lankans. Hence, the present study was undertaken to establish the cranial capacity in an adult Sri Lankan population. A total of 210 subjects with an age span of 20-23 years were included in the study.... |
| Tipo: Journal article |
Palavras-chave: Cranial capacity; Linear dimensions; Regression analysis; Sri Lanka. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200029 |
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| KAYANO, Mitsunori; KATAOKA, Tomoko; 茅野, 光範. |
| Multiple logistic regression was applied to milk yield and composition data for 632 records of healthy cows and 61 records of ketotic cows in Hokkaido, Japan. The purpose was to diagnose ketosis based on milk yield and composition, simultaneously. The cows were divided into two groups: (1) multiparous, including 314 healthy cows and 45 ketotic cows and (2) primiparous, including 318 healthy cows and 16 ketotic cows, since nutritional status, milk yield and composition are affected by parity. Multiple logistic regression was applied to these groups separately. For multiparous cows, milk yield (kg/day/cow) and protein-to-fat (P/F) ratio in milk were significant factors (P<0.05) for the diagnosis of ketosis. For primiparous cows, lactose content (%), solid... |
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Palavras-chave: Herd test; Metabolic disorder; Perinatal disease; P/F ratio; Regression analysis. |
| Ano: 2015 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4221 |
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| Registros recuperados: 43 | |
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