Determination of leaf sampling techniques to assess the nutritional status of Barbados cherry (Malpighia emarginataD.C.)

Fruits ◽  
2002 ◽  
Vol 57 (3) ◽  
pp. 161-171 ◽  
Author(s):  
José Francisco Teixeira do Amaral ◽  
Claudio Horst Bruckner ◽  
Herminia Emilia Prieto Martinez ◽  
Cosme Damiao Cruz ◽  
Cleiton Lacerda Godoy ◽  
...  
Keyword(s):  
Nutritional Status ◽  
Sampling Techniques ◽  
Leaf Sampling

Sampling, Preservation and Counting of Samples II: Zooplankton

2017 ◽  
Author(s):  
Peter H. Wiebe ◽  
Ann Bucklin ◽  
Mark Benfield
Keyword(s):  
Genetic Analysis ◽  
High Speed ◽  
Morphological Analysis ◽  
Taxonomic Composition ◽  
Sampling Techniques ◽  
Sample Analysis ◽  
Sample Preservation ◽  
The Past ◽  
Plankton Collection

This chapter reviews traditional and new zooplankton sampling techniques, sample preservation, and sample analysis, and provides the sources where in-depth discussion of these topics is addressed. The net systems that have been developed over the past 100+ years, many of which are still in use today, can be categorized into eight groups: non-opening/closing nets, simple opening/closing nets, high-speed samplers, neuston samplers, planktobenthos plankton nets, closing cod-end samplers, multiple net systems, and moored plankton collection systems. Methods of sample preservation include preservation for sample enumeration and taxonomic morphological analysis, and preservation of samples for genetic analysis. Methods of analysis of zooplankton samples include determination of biomass, taxonomic composition, and size by traditional methods; and genetic analysis of zooplankton samples.

ANALISIS POLA DAYA TARIK WISATA BERDASARKAN POTENSI SUMBERDAYA (SUPPLY) SEBAGAI ASET DAN DAYA TARIK DI DAERAH ISTIMEWA YOGYAKARTA

2020 ◽  
Vol 14 (01) ◽  
pp. 13-22
Author(s):  
Sri Wahyuni
Keyword(s):  
Qualitative Research ◽  
Research Methods ◽  
Qualitative Research Methods ◽  
Data Sources ◽  
Sampling Techniques ◽  
Tourist Attraction ◽  
Tourist Attractions ◽  
Tourist Destinations ◽  
Special Region

The purpose of this research is to study and to analyze the pattern of tourist destinations to determine the excellence of attractions in each district in the Special Region of Yogyakarta, as a tourist attraction. This research uses qualitative research methods with sampling techniques using positive sampling. Data sources used are informants, tourist attractions, and documents. Determination of the advantages of a tourist attraction in a regency and even in the Special Region of Yogyakarta aims to increase the selling power or visitors of a tourist attraction and become an icon or mascot in the regency or region in Yogyakarta Special Region. From the results of the discussion, it was concluded that the most preeminent in the Yogyakarta Special Region was Tourism, Beach and Temple Villages. Keywords: Tourist Patterns, Tourist Attraction, Tourist Asset, Potential Resources

scholarly journals Relative chlorophyll contents in the evaluation of the nutritional status of nitrogen from xaraes palisade grass and determination of critical nitrogen sufficiency index

2015 ◽  
Vol 37 (2) ◽  
pp. 109
Author(s):  
Joao Paulo Ramos Costa ◽  
Gregory de Paula Caputti ◽  
Leandro Galzerano ◽  
Wilton Ladeira da Silva ◽  
Ana Cláudia Ruggieri ◽  
...  
Keyword(s):  
Nutritional Status ◽  
Chlorophyll Contents

scholarly journals Efficiency of portable chlorophyll meters in assessing the nutritional status of wheat plants

2015 ◽  
Vol 19 (12) ◽  
pp. 1148-1151 ◽  
Author(s):  
Alessana F. Schlichting ◽  
Edna M. Bonfim-Silva ◽  
Matheus de C. Silva ◽  
William Pietro-Souza ◽  
Tonny J. A. da Silva ◽  
...  
Keyword(s):  
Nutritional Status ◽  
Chlorophyll Content ◽  
Direct Determination ◽  
Probability Level ◽  
Indirect Determination ◽  
N Concentration ◽  
Randomized Design ◽  
Chlorophyll Index ◽  
Completely Randomized Design

ABSTRACT The objective of this study was to verify the efficiency of two portable chlorophyll meters (Minolta SPAD® 502 and Falker ClorofiLOG® 1030) in assessing the nutritional status of wheat plants, correlating the indices from the devices and the direct determination of chlorophyll content with the concentration of nitrogen (N) in the plant. The experiment was conducted in a greenhouse, in pots with 5 dm3 of Oxisol, in a completely randomized design, with six N doses (0, 80, 160, 240, 320 and 400 mg dm-3) and five replicates. At 47 days after emergence, the readings of SPAD and Falker indices and the quantification of chlorophyll content and N concentration in wheat plants were performed, as well as analysis of variance and correlation test, both at 0.05 probability level. The chlorophyll meters Minolta SPAD® 502 and Falker ClorofiLOG® 1030 do not differ with respect to the indirect determination of chlorophyll in wheat plants. The Falker chlorophyll index was statistically equal to the chlorophyll content. Indirect chlorophyll indices and chlorophyll content showed a high correlation with the N concentration in the plant.

scholarly journals Neck Circumference Measurement in Determination of Nutritional Status and Some Nutrition Related Diseases

2021 ◽  
Vol 11 (1) ◽  
pp. 100-110
Author(s):  
Hatice Merve Bayram ◽  
Zehra Margot Celik ◽  
Fatma Esra Güneş
Keyword(s):  
Nutritional Status ◽  
Neck Circumference

Copper Artifact Analysis with the X-Ray Spectrometer

1962 ◽  
Vol 28 (2) ◽  
pp. 234-238 ◽  
Author(s):  
Edward J. Olsen
Keyword(s):  
Pilot Study ◽  
Raw Materials ◽  
Sampling Techniques ◽  
Great Lakes Region ◽  
Analytical Instrument ◽  
X Ray ◽  
Artifact Analysis ◽  
Inherent Error ◽  
European Trade

AbstractThe X-ray spectrometer method as an archaeological tool is discussed with special reference to its limitations as a chemical analytical instrument. Qualitative results are presented for six North American copper samples, one European trade brass, and nine artifacts from the Great Lakes region. From this pilot study it is concluded that the most fruitful results in the problem of the determination of provenance of copper artifacts will be obtained from semi-quantitative optical spectographic analyses of carefully collected artifacts and raw materials. The largest inherent error in this problem is that of meaningful sampling techniques. The only recourse is to treat such chemical data statistically and determine the probabilities that given specimens came from the various possible sources.

scholarly journals The Role of Women in Income Production and Intra-household Allocation of Resources as a Determinant of Child Nutrition and Health

1988 ◽  
Vol 10 (3) ◽  
pp. 1-9 ◽  
Author(s):  
Lynn Bennett
Keyword(s):  
Nutritional Status ◽  
Land Tenure ◽  
Child Nutrition ◽  
Interdisciplinary Approach ◽  
Household Decision ◽  
Adequate Representation ◽  
Women's Role ◽  
Key Steps ◽  
Household Allocation

This article presents a theoretical framework for answering the question, Does women's income-producing work result in an improvement or a deterioration in the health and nutritional status of their children? The author maintains that the literature has not provided clear evidence that the children of working mothers have lower nutritional status than those of mothers who do not work outside the home. She notes that previous studies have not controlled either for the family's income level or for other important variables, such as the presence of an employed male and land tenure status. Bennett argues that one of the key steps in understanding women's role in the determination of child health and nutritional status “may be a careful investigation of the process of resource allocation within the household. “ She opposes the use of a single joint-utility function as an adequate representation of household decision-making dynamics. Her recommendations include conducting investigations from an interdisciplinary approach, including economics, health, nutrition, and anthropology, and she presents a framework for these investigations.

Routine Determination of Carbaryl in Dipping Fluids and Deposits on Cattle Hair

1966 ◽  
Vol 49 (5) ◽  
pp. 986-989
Author(s):  
J H P Dingle
Keyword(s):  
Cow Dung ◽  
Sampling Techniques ◽  
Background Interference ◽  
Large Numbers

Abstract Sampling techniques and an ultraviolet method, capable of handling large numbers of samples, have been developed for carbaryl in dipping fluids and cattle hair deposits. The absorbance (280 mμ) of dip samples is measured after suitable dilution with ethanol; a correction is made for the presence of 1-naphthol, but background interference from dip dirt, clay, cow dung, etc. is negligible at the dilutions used. The amount of carbaryl deposited on cattle hair dipping is estimated similarly after extraction with ethanol. The accuracy of the dip analysis and the effect of hair grease on the analysis of hair deposits are discussed.

Investigation of indigestible markers in dogs

2009 ◽  
Vol 2009 ◽  
pp. 67-67
Author(s):  
I Singh ◽  
W Hendriks ◽  
L Tucker ◽  
D G Thomas
Keyword(s):  
Titanium Dioxide ◽  
Chromium Oxide ◽  
Feed Intake ◽  
Sampling Techniques ◽  
Grab Sampling ◽  
Common Marker ◽  
High Nutrient

Digestibility trials enable researchers to determine the amount of nutrients an animal absorbs and utilises from feed. There are a number of methods available, with the most common being the measurement of total feed intake and total collection of faeces. However, in situations where it is not practical to conduct a total collection trial, indigestible markers are used in conjunction with grab-sampling or sub-sampling techniques. To date, the most common marker used in dog studies has been chromium oxide (Cr2O3; Hill et al., 1996), with little data available on the suitability of other markers such as titanium dioxide (TiO2). A major problem in using Cr2O3 as an indigestible marker is poor repeatability and agreement between laboratories in the determination of Cr2O3. This has led to variable results due to incomplete and inconsistent recovery in excreta (Sales and Janssens, 2003). However work on other species comparing the use of TiO2 and Cr2O3, has demonstrated that TiO2 was a more accurate marker (Jagger et al., 1992). This study was performed to determine the digestibility of two diets, a low (LN) and a high nutrient (HN) diet using TiO2 or Cr2O3 as indigestible markers. The two different quality diets were used to investigate if digestibility affected marker recovery.

STUDIES OF PHLORIDZIN IN MALUS

1959 ◽  
Vol 37 (7) ◽  
pp. 901-910 ◽  
Author(s):  
A. Hutchinson ◽  
C. D. Taper ◽  
G. H. N. Towers
Keyword(s):  
Nutritional Status ◽  
Quantitative Determination ◽  
Carbohydrate Metabolism ◽  
Alkaline Hydrolysis ◽  
Young Seedling ◽  
Leaf Disks

The phloridzin content of dormant terminal twigs of Malus rootstock clones was not related to the vigor imparted to the scions. In young seedling trees it varied with the nutritional status of the plant; an acute deficiency of nitrogen, sulphur, or calcium resulted in a significant increase in phloridzin accumulation. Phloridzin is synthesized readily in the leaf from C14O2 in the light and appears to be stable once formed. Phenylalanine-C14 and tyrosine-C14, when fed to leaf disks, are incorporated into the C6–C3 moiety of phloridzin which includes ring B. Tyrosine is not as effective as phenylalanine. Acetate-C14 is incorporated into ring A. Phloroglucinol is not involved in the synthesis of phloridzin. A method for the quantitative determination of phloridzin is described, also a semimicro method for its alkaline hydrolysis. The large amounts of radioactive D-glucitol formed from a wide variety of precursor compounds indicate a central role for it in the carbohydrate metabolism of Malus.

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