► New density data for 1-hexanol are reported. ► The pressure and temperature intervals are 0.1–140MPa and 293.15–403.15K. ► 180 measured data points were fitted to a Tait-like equation. ► ...Experimental data points have been compared to Cibulka's correlation. ► The isobaric expansivity and the isothermal compressibility have been derived.
This work reports new density data (180 points) of 1-hexanol at twelve different temperatures between 293.15 and 403.15K (every 10K), and fifteen different pressures from 0.1 to 140MPa (every 10MPa). An Anton Paar vibrating tube densimeter, calibrated with an uncertainty of ±0.5kgm−3 was used to perform these measurements. The experimental density data were fitted with the Tait-like equation with low standard deviations. In addition, the isobaric thermal expansivity and the isothermal compressibility were derived from the Tait-like equation.
This work reports new density data (178 points) of 1-butanol at twelve temperatures between 293.15 and 403.15
K (every 10
K), and fifteen pressures from 0.1 up to 140
MPa (every 10
MPa). An Anton ...Paar vibrating tube densimeter, calibrated with an uncertainty of ±0.5
kg
m
−3 was used to perform these measurements. The experimental density data were fitted with the Tait-like equation with low standard deviations. In addition, the isobaric thermal expansivity and the isothermal compressibility have been derived from the Tait-like equation.
Quinoa cultivation in Chile presents an ancient and active complex of geographic, climatic, social and cultural interactions that has determined its current biodiversity in the three main growing ...zones (north, central and south). Importantly, these interactions involve the participation of farmers, whose activities are at the base of seed exchange networks due to their knowledge and in situ conservation of genetic diversity. The present study reports how a better understanding of farmers’ seed exchanges and local production practices could impact the genetic structure and diversity of quinoa at national scale in Chile. Using field interviews and characterization of 20 microsatellite genetic markers in a multi-origin set of 34 quinoa accessions representative of Chile and the South American region, the phenetic analysis of germplasm was consistent with the current classification of quinoa ecotypes present in Chile and Andean zone. This allowed the identification of five populations, which were represented by quinoa of Salares (northern Chile), Coastal/Lowlands (central and southern Chile), Highlands (Peru, Bolivia and Argentina) and Inter-Andean Valleys (Ecuador and Colombia). The highly informative quality of the markers used revealed a wide genetic diversity among main growing areas in Chile, which correlated well with natural geographical–edaphic–climatic and social–linguistic context to the expansion of quinoa biodiversity. Additionally, in addition to ancient seed exchanges, this process is still governed by the diverse agricultural practices of Andean farmers. Genetic erosion is considered an imminent risk due to small-scale farming, where the influence of increased migration of people to urban systems and export-driven changes to the agro-ecosystems may further reduce the diversity of quinoa plants in cultivation.
In this study, the effects of goat manure fertilization (2, 4, 8, and 12 Tn/ha) on the grain yield, organic compounds, and mineral composition of two quinoa varieties (CICA-17 and Regalona Baer) were ...evaluated under field conditions in Northwest Argentina. The results indicate that fertilization improved the quinoa grain yield and total protein content. Low manure doses positively affected the fatty acid (FA) profile, and significant changes were determined for the monounsaturated (MUFA) and polyunsaturated (PUFA) fatty acid contents of CICA-17 and on the saturated fatty acid (SFA) contents of R. Baer seeds. The amino acid contents were positively affected in CICA-17 and negatively in R. Baer. Soluble sugars (glucose, fructose, and sucrose), major elements (K, Si, P, Mg, Ca, and Na), minor elements (Fe, Mn, Al, Zn, and Cu), and ultratrace elements (Cr and Li) were detected and discussed in terms of their impact on human nutrition and health. Conclusively, manure addition affected some essential amino acids, the desaturase activity, the n6:n3 and SFA/UFA ratios, the atherogenic index, soluble sugars, and mineral content, and the fatty acid metabolism of each variety was differently affected, especially the C16 and C18 desaturase activity, which responded differently to various manure doses. Manure addition is a promising alternative to improve the nutritional quality and functionality of quinoa grains, but the response is not linear.
Palliative care is rarely accessible in rural sub-Saharan Africa. Partners In Health and the Malawi government established the Neno Palliative Care Program (NPCP) to provide palliative care in rural ...Neno district. We conducted a situation analysis to evaluate early NPCP outcomes and better understand palliative care needs, knowledge, and preferences.
Employing rapid evaluation methodology, we collected data from 3 sources: 1) chart review of all adult patients from the NPCP's first 9 months; 2) structured interviews with patients and caregivers; 3) semi-structured interviews with key stakeholders.
The NPCP enrolled 63 patients in its first 9 months. Frequent diagnoses were cancer (n = 50, 79%) and HIV/AIDS (n = 37 of 61, 61%). Nearly all (n = 31, 84%) patients with HIV/AIDS were on antiretroviral therapy. Providers registered 112 patient encounters, including 22 (20%) home visits. Most (n = 43, 68%) patients had documented pain at baseline, of whom 23 (53%) were treated with morphine. A majority (n = 35, 56%) had ≥1 follow-up encounter. Mean African Palliative Outcome Scale pain score decreased non-significantly between baseline and follow-up (3.0 vs. 2.7, p = 0.5) for patients with baseline pain and complete pain assessment documentation. Providers referred 48 (76%) patients for psychosocial services, including community health worker support, socioeconomic assistance, or both. We interviewed 36 patients referred to the NPCP after the chart review period. Most had cancer (n = 19, 53%) or HIV/AIDS (n = 10, 28%). Patients frequently reported needing income (n = 24, 67%) or food (n = 22, 61%). Stakeholders cited a need to make integrated palliative care widely available.
We identified a high prevalence of pain and psychosocial needs among patients with serious chronic illnesses in rural Malawi. Early NPCP results suggest that comprehensive palliative care can be provided in rural Africa by integrating disease-modifying treatment and palliative care, linking hospital, clinic, and home-based services, and providing psychosocial support that includes socioeconomic assistance.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
The Peruvian Andes are among the world’s most important centers of origin for genetic diversity of crops and plants. Quinoa (
Chenopodium quinoa
Willd.) was domesticated in the Bolivian and Peruvian ...Andean region around Lake Titicaca. In situ conservation systems for quinoa germplasm and its wild relatives can still be found in the traditional systems of Peruvian farming communities. Quinoa crop wild relatives (CWRs), like the majority of CWRs of other agricultural species, are being affected by the considerable changes in the natural landscapes of the Andes. This article analyzes the presence and distribution of seven quinoa CWRs at the agroecosystem level and considers the social and environmental Andean contexts in which they are found. A qualitative research method based on participatory mapping in six local communities of the Puno region in Peru was applied to establish the presence and distribution of the species. We present the results that were confirmed with local actors on participatory GIS maps. Based on our analyses, we conclude that conservation programs should consider both permanent native meadows and cultivated land with their fallow cycles and plot borders. The diversity of the presence of quinoa CWRs is one result of the coexistence of these two land uses.
Delluc Brigitte, Delluc Gilles, Bazile-Robert Evelyne, Galinat B., Guichard Francis, Ozanne M. Les grottes ornées de Domme (Dordogne) : La Martine, Le Mammouth et le Pigeonnier. In: Gallia ...préhistoire, tome 26, fascicule 1, 1983. pp. 7-80.
Accurate knowledge of physical and acoustical properties is of importance in many fields of science and engineering. In this work, density and speed of sound measurements of diisopropyl ether (DIPE) ...are reported. The speed of sound has been measured up to 100 MPa and in the temperature range (293.15–353.15) K by using an apparatus based on a pulse echo technique working in transmission mode, and a correlation for this property was proposed. By using a procedure which rests on the Newton-Laplace relationships, density and its derivatives were determined. To show the reliability of this method, high pressure density measurements were carried out up to 140 MPa and within the temperature interval (293.15–393.15) K with an Anton Paar densitometer.
•New speed of sound data for Diisopropyl Ether are reported.•The pressure and temperature intervals are 0.1–100 MPa and 293.15–353.15 K.•Density data have been calculated by integration of speed of sound data.•A correlation was proposed to represent density data.•Isothermal compressibility are reported.
•New speed of sound data for HFE-7500 are reported.•The pressure and temperature intervals are 0.1–100MPa and 293.15–353.15K.•Density data have been calculated by integration of speed of sound ...data.•A correlation was proposed to represent both density and speed of sound data.•Isothermal compressibility and isobaric expansion are reported.
The speed of sound of hydrofluoroether fluid HFE-7500has been measured at pressures up to 100MPa along isotherms ranging from (293.15 to 353.15)K. The measurements were carried out using a pulse echo technique operating at 3MHz. Additional high pressure density data were measured up to 140MPa with temperatures from (293.15 to 393.15)K in order to evaluate isentropic compressibility using speed of sound measurements. A correlation was then proposed to describe both density and speed of sound within their estimated uncertainties and used to evaluate the density and its derivatives.
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