scholarly journals EXPLORATION OF ORNAMENTAL FLORAS IN THE CAMPUS OF S.T. HINDU COLLEGE, NAGERCOIL, KANYAKIMARI DISTRICT, TAMILNADU, INDIA

2016 ◽  
Vol 3 (1) ◽  
pp. 59-64
Author(s):  
Mary Kensa V ◽  
Sahaya Anthony Xavier G ◽  
Asha A ◽  
Brintha B ◽  
Pechiammal M ◽  
...  
Keyword(s):  
Everyday Life ◽  
Public Spaces ◽  
Taxonomic Identification ◽  
Floristic Diversity ◽  
Floristic Survey ◽  
Observation Method ◽  
Almost All ◽  
Wild Progenitors

Most of the present day flowers have come from the wild progenitors, a few of which still exist in natural habitat.Ornamental flowers are highly promising and unutilized resources having tremendous and prover economic importance.Ornamental plants accompany people, since their birth to death and they coexist with almost all happy events in life such birthday celebrations, weddings, carrier progress etc. In addition, they form our best partners in our everyday life in our flats, offices, different public spaces, parks, gardens and elsewhere.An extensive floristic survey was conducted during the year 2015. Taxonomic identification, photographic documentation and ornamental characterization of each species with potential for use on floral art were recorded. The methodology used is based on observation method for the determination of flora. All the specimens collected were identified with the help of recent literature.The field expeditions of study area gave interesting results concerning floristic diversity.

Compositional, microbiological, biochemical, volatile profile and sensory characterization of four Italian semi-hard goats' cheeses

2007 ◽  
Vol 74 (4) ◽  
pp. 468-477 ◽  
Author(s):  
Raffaella Di Cagno ◽  
R Evan Miracle ◽  
Maria De Angelis ◽  
Fabio Minervini ◽  
Carlo G Rizzello ◽  
...  
Keyword(s):  
Principal Component ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Volatile Profile ◽  
Mean Values ◽  
Trained Panel ◽  
Steam Distillation Extraction ◽  
Almost All

Four semi-hard Italian goats' milk cheeses, Flor di Capra (FC), Caprino di Cavalese (CC), Caprino di Valsassina (CV) and Capritilla (C), were compared for compositional, microbiological, biochemical, volatile profile and sensory characteristics. Mean values for the gross composition in part differed between cheeses. At the end of ripening, cheeses contained 7·98−8·51 log10 cfu/g of non-starter lactic acid bacteria. Lactobacillus paracasei, Lb. casei and Lb. plantarum were dominant in almost all cheeses. As shown by the Principal Component Analysis of RP-FPLC data for the pH 4·6-soluble fractions and by the determination of free amino acids, secondary proteolysis of CC and CV mainly differed from the other two cheeses. A total of 72 volatile components were identified by steam distillation-extraction followed by gas chromatography-mass spectrometry. Free fatty acids and esters qualitatively and quantitatively differentiated the profile of CV and CC, respectively. The lowest concentrations of volatile components characterized FC. Descriptive sensory analysis using 17 flavour attributes was carried out by a trained panel. Different flavour attributes distinguished the four goats' cheeses and relationships were found with volatile components, biochemical characteristics and technology.

Validation study of canine serum cortisol measurement with the Immulite 2000 Xpi cortisol immunoassay

2021 ◽  
pp. 104063872110292
Author(s):  
Jérémie Korchia ◽  
Kathleen P. Freeman
Keyword(s):  
Dynamic Testing ◽  
Total Error ◽  
Serum Cortisol ◽  
Cortisol Concentration ◽  
Canine Serum ◽  
Almost All ◽  
Serum Cortisol Concentration ◽  
Interpretation Of Results

We report the results of validation of canine serum cortisol determination with the Immulite 2000 Xpi cortisol immunoassay (Siemens), with characterization of precision (CV), accuracy (spiking-recovery [SR] bias), and observed total error (TEo = bias + 2CV) across the reportable range, specifically at the most common interpretation thresholds for dynamic testing. Imprecision increased at increasing rate with decreasing serum cortisol concentration and bias was low, resulting in increasing TEo with decreasing serum cortisol concentration. Inter-laboratory comparison study allowed for determination of range-based bias (RB) and average bias (AB). At 38.6 and 552 nmol/L (1.4 and 20 μg/dL), between-run CV was 10% and 7.5%, respectively, and TEo ~30% and ~20%, respectively (TEo remained similar regardless of the considered bias: SR, RB, or AB). These analytical performance parameters should be considered in the interpretation of results and for future expert consensus discussions to determine recommendations for allowable total error (TEa). Importantly, the commonly used thresholds for interpretation of results were determined ~40 y ago with different methods of measurements and computation, hence updating is desirable. Quality control material (QCM) had between-run imprecision of 4% for QCM1 and 7% for QCM2; the bias was minimal for both levels. Acceptable QC rules are heavily dependent on the desired TEa for the QCM system (TEaQCM), itself limited by the desired clinical TEa. At low TEaQCM (20–33%), almost no rules were acceptable, whereas at high TEaQCM (50%), almost all rules were acceptable; further investigation is needed to determine which TEaQCM can be guaranteed by simple QC rules.

scholarly journals Reaction of unsaturated uronic acid residues with mercuric salts. Cleavage of the hyaluronic acid disaccharide 2-acetamido-2-deoxy-3-O-(β-d-gluco-4-enepyranosyluronic acid)-d-glucose

1987 ◽  
Vol 245 (3) ◽  
pp. 795-804 ◽  
Author(s):  
U Ludwigs ◽  
A Elgavish ◽  
J D Esko ◽  
E Meezan ◽  
L Rodén
Keyword(s):  
Hyaluronic Acid ◽  
Connective Tissue ◽  
Uronic Acid ◽  
Glucuronic Acid ◽  
Reaction Products ◽  
Acid Moiety ◽  
Analytical Work ◽  
Almost All

Degradation of connective-tissue polysaccharides with bacterial or fungal eliminases and subsequent characterization of the reaction products are now part of standard methodology for the analysis of these compounds. However, the scope of preparative and analytical work based on the use of eliminases has been limited by the lack of procedures for specific removal of the unsaturated uronic acid residues generated in the eliminase reactions. In the present investigation, we have shown that these residues are cleaved by mercuric salts under mild conditions that are not likely to affect other structures in an oligo- or poly-saccharide molecule. Thus the disaccharide generated from hyaluronic acid by digestion with chondroitinase AC or ABC was cleaved into a keto acid and free N-acetylglucosamine within 10 min at room temperature upon exposure to 14 mM-mercuric acetate at pH 5. The reaction of the disaccharide with mercuric salts was used for ready determination of the distribution of radioactivity between the glucuronic acid and N-acetylglucosamine moieties in radioactive hyaluronic acid that had been synthesized by IMR-90 fibroblasts from 3H-labelled monosaccharides. When the precursor was [3H]galactose, over 95% of the incorporated radioactivity was found in the glucuronic acid moiety. In contrast, cells grown in the presence of [3H]glucosamine synthesized a polysaccharide in which almost all of the label was located in the N-acetylglucosamine units. It is apparent from these experiments that the reaction of unsaturated uronic acid residues with mercuric salts provides a new tool with potential for many applications in the study of the structure and metabolism of connective-tissue polysaccharides.

scholarly journals Aspectos florísticos e síndromes de dispersão das espécies arbóreas do Morro de Santo Antão, Santa Maria-RS

2000 ◽  
Vol 22 (22) ◽  
pp. 145 ◽  
Author(s):  
Luis Fernando Alberti ◽  
José Augusto Nunes Hirt ◽  
Décio Brasil Flores Machado Junior ◽  
Maurício Steckel ◽  
Cleandro Stevão Tombini ◽  
...  
Keyword(s):  
Tree Species ◽  
Floristic Composition ◽  
Deciduous Forests ◽  
Field Observations ◽  
Taxonomic Identification ◽  
Floristic Diversity ◽  
Rio Grande Do Sul ◽  
Seed Dispersion ◽  
Santa Maria

The Santo Antão Hill located at Caturrita Village in the county of Santa Maria is an expressive tourist place in the region and also a rich forest in terms of botanic species from the lower montane Seasonal Deciduous Forests of the Serra Geral. Rio Grande do Sul. The objectives of the study were to get information about the floristic composition and seed dispersion syndromes of tree species. The floristic characterization of the Santo Antão hill forest was made with detailed taxonomic identification of the species found there. The seed dispersion was studied by field observations and bibliographical reviews using the categories and concepts proposed by Van Der Pl]l, Howe & Westley and Fisher & Chapman and used by NASCIMENTO & LONGHI (1996). There were 51 tree species classified in 47 genera and 28 families. indicating a relevant floristic diversity. Leguminosae. Myrtaceae. Sapindaceae and Moraceae were the most frequent families. Among the specles, Sorocea bomplandii (cincho). Cupania vernalis (camboatá- vermelho), Actinostemon concolor (Iaranjeira-do-mato), Schinus molle (aroeira-mansa), Nectandra megapotamica (canela-preta), were the most conspicuous. 69% of the studied species presented zoochoric dispersion, which is in agreement with severals authors that put this syndrome as one of the most important in the dissemination of tree species, as well as in the balance between the flora and fauna in the ecosystem.

Characterization of Impressed Current Technique to Model Corrosion of Reinforcement in Concrete

2020 ◽  
Vol 11 (1) ◽  
pp. 93-99
Author(s):  
Abu Zakir Morshed ◽  
Sheikh Shakib ◽  
Tanzim Jahin
Keyword(s):  
Immersion Time ◽  
Chloride Content ◽  
Engineering Science ◽  
Coastal Regions ◽  
Faraday’S Law ◽  
Current Technique ◽  
Corrosion Cell ◽  
Impressed Current

Corrosion of reinforcement is an important durability concern for the structures exposed to coastal regions. Since corrosion of reinforcement involves long periods of time, impressed current technique is usually used to accelerate the corrosion of reinforcement in laboratories. Characterization of impressed current technique was the main focus of this research,which involved determination of optimum chloride content and minimum immersion time of specimens for which the application of Faraday’s law could be efficient. To obtain optimum chloride content, the electrolytes in the corrosion cell were prepared similar to that of concrete pore solutions. Concrete prisms of 200 mm by 200 mm by 300 mm were used to determine the minimum immersion time for saturation. It was found that the optimum chloride content was 35 gm/L and the minimum immersion time for saturation was 140 hours. Accounting the results, a modified expression based on Faraday’s law was proposed to calculate weight loss due to corrosion. Journal of Engineering Science 11(1), 2020, 93-99

The Determination of Sense via Deleuze and Blanchot: Paradoxes of the Habitual, the Immemorial, and the Eternal Return

2008 ◽  
Vol 2 (2) ◽  
pp. 155-177 ◽  
Author(s):  
Eugene Brently Young
Keyword(s):  
Eternal Return

Eternal return is the paradox that accounts for the interplay between difference and repetition, a dynamic at the heart of Deleuze's philosophy, and Blanchot's approach to this paradox, even and especially through what it elides, further illuminates it. Deleuze draws on Blanchot's characterisations of difference, forgetting, and the unlivable to depict the ‘sense’ produced via eternal return, which, for Blanchot, is where repetition implicates or ‘carries’ pure difference. However, for Deleuze, difference and the unlivable are also developed by the living repetition or ‘contraction’ of habit, which results in his distinctive characterization of ‘force’, ‘levity’, and sense in eternal return.

A Thorough Theoretical Exploration of Intriguing Characteristics of Cyclo[18]carbon: Geometry, Bonding Nature, Aromaticity, Weak Interaction, Reactivity, Excited States, Vibrations, Molecular Dynamics and Various Molecular Properties

2019 ◽  
Author(s):  
Tian Lu ◽  
Qinxue Chen ◽  
Zeyu Liu
Keyword(s):  
Molecular Dynamics ◽  
Excited States ◽  
Electronic Excitation ◽  
Ring Structure ◽  
Molecular Properties ◽  
Molecular Vibration ◽  
Full Characterization ◽  
Long Time ◽  
Almost All

Although cyclo[18]carbon has been theoretically and experimentally investigated since long time ago, only very recently it was prepared and directly observed by means of STM/AFM in condensed phase (Kaiser et al., <i>Science</i>, <b>365</b>, 1299 (2019)). The unique ring structure and dual 18-center π delocalization feature bring a variety of unusual characteristics and properties to the cyclo[18]carbon, which are quite worth to be explored. In this work, we present an extremely comprehensive and detailed investigation on almost all aspects of the cyclo[18]carbon, including (1) Geometric characteristics (2) Bonding nature (3) Electron delocalization and aromaticity (4) Intermolecular interaction (5) Reactivity (6) Electronic excitation and UV/Vis spectrum (7) Molecular vibration and IR/Raman spectrum (8) Molecular dynamics (9) Response to external field (10) Electron ionization, affinity and accompanied process (11) Various molecular properties. We believe that our full characterization of the cyclo[18]carbon will greatly deepen researchers' understanding of this system, and thereby help them to utilize it in practice and design its various valuable derivatives.

A Thorough Theoretical Exploration of Intriguing Characteristics of Cyclo[18]carbon: Geometry, Bonding Nature, Aromaticity, Weak Interaction, Reactivity, Excited States, Vibrations, Molecular Dynamics and Various Molecular Properties

2019 ◽  
Author(s):  
Tian Lu ◽  
Qinxue Chen ◽  
Zeyu Liu
Keyword(s):  
Molecular Dynamics ◽  
Excited States ◽  
Electronic Excitation ◽  
Ring Structure ◽  
Molecular Properties ◽  
Molecular Vibration ◽  
Full Characterization ◽  
Long Time ◽  
Almost All

Although cyclo[18]carbon has been theoretically and experimentally investigated since long time ago, only very recently it was prepared and directly observed by means of STM/AFM in condensed phase (Kaiser et al., <i>Science</i>, <b>365</b>, 1299 (2019)). The unique ring structure and dual 18-center π delocalization feature bring a variety of unusual characteristics and properties to the cyclo[18]carbon, which are quite worth to be explored. In this work, we present an extremely comprehensive and detailed investigation on almost all aspects of the cyclo[18]carbon, including (1) Geometric characteristics (2) Bonding nature (3) Electron delocalization and aromaticity (4) Intermolecular interaction (5) Reactivity (6) Electronic excitation and UV/Vis spectrum (7) Molecular vibration and IR/Raman spectrum (8) Molecular dynamics (9) Response to external field (10) Electron ionization, affinity and accompanied process (11) Various molecular properties. We believe that our full characterization of the cyclo[18]carbon will greatly deepen researchers' understanding of this system, and thereby help them to utilize it in practice and design its various valuable derivatives.

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