Terms Of Increase In Area Research Articles

Value of an expanded range of lesions on contrast-enhanced ultrasound for the diagnosis of hypervascular breast masses.

Breast cancer lesions show an expanded range on contrast-enhanced ultrasound (CEUS). Here, we quantitatively analyze this index to explore its effective cutoff value for distinguishing benign and malignant lesions and the corresponding diagnostic performance and investigate its role in prognostic assessment of malignant lesions. Consecutive patients who underwent CEUS for breast lesions during the period from September 2017 to June 2019 were included. Original CEUS images were selected, displayed in dual-frame mode, and measured when enhancement of the lesion reached its peak. The longitudinal diameter, transverse diameter, and area of the lesion on the two-dimensional images and the corresponding postenhancement images were measured to calculate six indicators: longitudinal diameter increment, transverse diameter increment, area increment, percent increase in longitudinal diameter, percent increase in transverse diameter, and percent increase in area increment. With postoperative pathology as the gold standard, the cutoff values for distinguishing benign and malignant lesions and the correlations of these indicators with pathological subtypes and pathological grades were evaluated. Malignant lesions showed a more significantly expanded range after enhancement compared to benign lesions, especially in terms of area increase. When the cutoff value of the area increment was set at 0.47 cm2 for distinguishing between benign and malignant lesions, the area under the curve (AUC) was 0.945, and the sensitivity, specificity, accuracy, positive predictive value, and negative predictive value were 90.1%, 91.5%, 90.9%, 87.2%, and 93.5%, respectively. The pathologically measured maximum diameter of malignant masses correlated with the percent increase in transverse diameter, area increment, and percent increase in area increment. The longitudinal diameter increment in the luminal A group was significantly smaller than that in the human epidermal growth factor receptor 2 (HER2)+ group. The percent increase in transverse diameter was helpful for predicting the pathological grade of malignant masses. When the cutoff value of the percent increase in transverse diameter was set at 10.84% for pathological grading, the AUC was 0.623, and the sensitivity was 90.8%. Indicators related to the expanded lesion range on CEUS are helpful in differential diagnosis of benign and malignant lesions and in prognostic assessment of pathological grades.

Industrial Agroforestry—A Sustainable Value Chain Innovation through a Consortium Approach

Agroforestry has been practicedtraditionally in India in the form of subsistence farming, but is being increasingly recognized from the economic point of view, in addition to its positive contribution to the wood-based industrial sector, which has recent origin. Low forest cover, poor productivity and legal restrictions coupled with an increasing demand for wood and wood products due to increasing population, industries and associated policy changes have ushered in a total mismatch between demand and supply. This has attracted increasing attention towards agroforestry. The National Forest Policy of India 1988 has directed all wood-based industries to generate their own raw material resources by linking farmers and extending technology and market support. However, these directives were not taken seriously, and consequently, the achievements that should have taken place in industrial agroforestry and plantation establishment are dismally modest for want of suitable institutional mechanism to resolve the research gaps that exist in the entire Production to Consumption System (PCS). Against this backdrop, Tamil Nadu Agricultural University (TNAU) has pioneered research by creating a value chain in industrial agroforestry which was initially demonstrated in 200 ha of farmlands through technological, organizational and marketing interventions. Incorporationof high yielding short rotation (HYSR) clones, precision silviculture technology, adoption of multifunctional agroforestry and value addition technology are the major technological interventions that attracted more farmers towards agroforestry development. Conceptualization and successful practice of the contract tree farming model, particularly the quadripartite contract farming model, ensured institutional linkage among the value chain players and facilitated technology transfer, assured buy back, price support system and also institutional credit and insurance. The provision of a market support system for a wide range of pulp wood, plywood, timber, and match wood exerted a significant influence among tree-growing farmers. In order to sustain these value chain innovations and interventions, an institutional mechanism, namely the Consortium of Industrial Agroforestry (CIAF), was established in 2015, which linked all value chain players and aided in resolving the issues in the entire production to consumption system (PCS) of agroforestry on a sustainable basis. Over the years, these innovative interventions have had a significant impact in terms of area increase, productivity and profitability improvement coupled with safeguarding the social and environmental concerns of agroforestry farmers from a holistic perspective. The Consortium-based Value Chain on Industrial Agroforestry model has a very good replication potential not only within India, but also elsewhere across the global landscape.

Trends in Fish Production and Marine Fish Products Export from India

Fish farming can play a vital role in the economic upliftment of the rural masses especially farmers. Keeping the importance of fish farming into consideration the present study was undertaken to investigate the growth in fish production in India and Punjab along with peeping into the export trends of marine fish production from India. In order to fulfil the objectives of the study, secondary data on fish production and export scenario were obtained from various sources for India and Punjab. The results of the study brought out that the total fish production in India had increased at a growth rate of 4.29 per cent per annum from 1980–81 to 2013–14. Growth in inland fish production was higher as compared to marine fish production during the same period. Also, the quantity of inland fish production had overtaken the marine fish production during the last three decades. The relative share of marine fish export to total marine fish production had increased during 1980–81 to 2013–14. As far as fish production in Punjab was concerned, the growth in area and production from fish farming had increased at the rate of 7.63 per cent and 9.88 per cent per annum, respectively during the period 1990–91 to 2013–14. It was inferred that increase in area and fish production could be attributed to subsidy provided by the government on various components of fish farming for its promotion which was reflected in terms of increase in area under fish farming in the state. The study brought out some specific policy issues such as; the government should provide higher subsidy to fish farmers particularly for inland fish production to further augment the fish production in the country as a whole and the demand of fish in the market could be increased if people are made aware about the nutritional importance of fishes through electronic and print media.

Impacts of Farmers’ Participation in Upscaling Technologies on Mungbean (<i>Vigna radiata</i> L.) Production in the South-Western Region of Bangladesh

The study evaluated the farmers’ participatory methods of upscaling technologies for increasing mungbean production in the south-western region of Bangladesh. It was a descriptive survey study and data were collected by interviewing 120 sample farmers in DFID-Mungbean Project areas in Bangladesh. The participatory methods trailed in the project were farmers seed exchange program, demonstrations trials, agricultural training and workshops on mungbean production. However, farmers to farmers seed exchange program was identified as the most effective method. During the project phase, the farmers selected and adopted their preferred mungbean varieties, developed and practiced appropriate land preparation techniques along with improved post-harvest operations. Farmers’ participation in technology generation and upscaling resulted in increasing area and production of the mungbean many fold during 2004 to 2008. The average yield of mungbean was 1370 kg/ha and almost all framers obtained yields more than that of the national average of 705 kg/ha. Agricultural training, farm size and extension contact accounted for 83% of the total variation in upscaling technology and 90% of the variation in yield of mungbean. The extent of upscaling technology in terms of increase in area and yield of mungbean were associated with various participatory methods practiced by the farmers in the study area. The Agriculturists 2014; 12(2) 39-47

Energy Conservation for Dynamical Black Holes

An energy conservation law is described, expressing the increase in mass-energy of a general black hole in terms of the energy densities of the infalling matter and gravitational radiation. This first law of black-hole dynamics describes how a black hole grows and is regular in the limit where it ceases to grow. An effective gravitational-radiation energy tensor is obtained, providing measures of both ingoing and outgoing, transverse and longitudinal gravitational radiation on and near a black hole. Corresponding energy-tensor forms of the first law involve a preferred time vector which plays the role of a stationary Killing vector. Identifying an energy flux, vanishing if and only if the horizon is null, allows a division into energy supply and work terms. The energy supply can be expressed in terms of area increase and a newly defined surface gravity, yielding a Gibbs-like equation.

Energy and entropy conservation for dynamical black holes

The Ashtekar-Krishnan energy-balance law for dynamical horizons, expressing the increase in mass-energy of a general black hole in terms of the infalling matter and gravitational radiation, is expressed in terms of general trapping horizons, allowing the inclusion of null (isolated) horizons as well as spatial (dynamical) horizons. This first law of black-hole dynamics is given in differential and integral forms, regular in the null limit. An effective gravitational-radiation energy tensor is obtained, providing measures of both ingoing and outgoing, transverse and longitudinal gravitational radiation on and near a black hole. Corresponding energy-tensor forms of the first law involve a preferred time vector which plays the role for dynamical black holes which the stationary Killing vector plays for stationary black holes. Identifying an energy flux, vanishing if and only if the horizon is null, allows a division into energy-supply and work terms, as in the first law of thermodynamics. The energy supply can be expressed in terms of area increase and a newly defined surface gravity, yielding a Gibbs-like equation, with a similar form to the so-called first law for stationary black holes. A Clausius-like relation suggests a definition of geometric entropy flux. Taking entropy as $\mathrm{\text{area}}/4$ for dynamical black holes, it is shown that geometric entropy is conserved: The entropy of the black hole equals the geometric entropy supplied by the infalling matter and gravitational radiation. The area or entropy of a dynamical horizon increases by the so-called second law, not because entropy is produced, but because black holes classically are perfect absorbers.

DAY AND NIGHT KINETICS OF GROWTH RATE IN GREEN, BROWN, AND RED SEAWEEDS1

ABSTRACTGrowth rates in terms of area increase per 30 min were measured in flat thalli of several seaweed, species by means of computer‐assisted image analysis, at 12 h light per day and a photon fluence rate of 20 μmol · m‐2· s−1. Light fields included white fluorescent, imitated underwater, blue, green, and red light. In the green alga Ulva pseudocurvata Koeman et Hoek, blue light caused an immediate reduction of thallus area and growth rate after the onset of light, whereas green light and red light resulted in an initial peak in growth rate followed by inhibition 60 min after the onset of light. More growth was observed in darkness than in blue light in U. pseudocurvata. All brown and red algae tested, with Laminaria saccharina (L.) Lamour. and Palmaria palmata Stackh. as the main investigated species, grew faster during the day than during the night, irrespective of light quality during the main light phase. The upper intertidal red alga Porphyra umbilicalis (L.) J. Ag. achieved most of its thallus expansion per 24 h during the first 3 h of the light phase, with maximum growth rates of 2–3% increase in area per hour. Maximal growth rates were 0.7% for juvenile laminarian sporophytes and were lower than this in Palmaria palmata and other perennial red algae. The temporary growth inhibition by light in Ulva pseudocurvata suggests photomorphogenetic events, similar to the kinetics of stem elongation in higher plant seedlings after blue or red light pulses in darkness.