New data on minerals of the hidalgoite-philipsbornite series from the Guatomo mine near Tham Thalu, Yala Province (Thailand)

2021 ◽  
Vol 29 (2) ◽  
pp. 270-274
Author(s):  
Martin Števko ◽  
Zdeněk Dolníček
Keyword(s):  
Chemical Composition ◽  
Green Light ◽  
Chemical Zoning ◽  
Yellowish Green ◽  
Altered Granite ◽  
Three Samples ◽  
Oscillatory Chemical ◽  
Hexagonal Crystals ◽  
Light Green

The chemical composition of three samples of minerals of the hidalgoite-philipsbornite series from the central part of the Guatomo mine pit was studied in detail by EMPA-WDS. They form yellowish-green, light green to pale blue microcrystalline crusts or hollow pseudomorphs after prismatic hexagonal crystals of mimetite in fractures of strongly altered granite or quartz. All studied samples show relatively strong, irregular to oscillatory chemical zoning in BSE, caused by S versus As substitution on T-site. Most of the zones are corresponding to hidalgoite, with only minor, outer zones represented by S-rich philipsbornite. Besides of dominant contents of Pb, Al, As and S also minor amounts of K (up to 0.11 apfu), Na (up to 0.05 apfu), Cu (up to 0.22 apfu), Fe (up to 0.09 apfu) and P (up to 0.04 apfu) were detected in studied samples.

scholarly journals An unusually coloured individual of the common spadefoot toad Pelobates fuscus (Laurenti, 1768)

2021 ◽  
Vol 63 (2) ◽  
pp. 137-140
Author(s):  
Piotr Paweł KAZIMIRSKI ◽  
Keyword(s):  
Predator Avoidance ◽  
Green Light ◽  
Ecological Effects ◽  
Yellowish Green ◽  
Anuran Species ◽  
Spadefoot Toad ◽  
Pelobates Fuscus ◽  
The Common ◽  
Light Green ◽  
Olive Green

The background colouration of the spadefoot toad Pelobates fuscus, an anuran species found in Europe is typically light grey/yellow grey/light olive-green. However, an atypical specimen, whose background was brightly coloured yellowish green (light green/lime/yellow coloured), with darker small spots distributed through dorsal parts and four main spots slightly shaped was observed in Poland (Great Poland, Mościejewo village), near to two ponds. The ecological effects of green coloured individual can be adaptively important, through its similarity to the vegetation (predator avoidance).

Red Light, Green Light: Making Sense of the Organizational Context for Issue Selling

2002 ◽  
Vol 13 (4) ◽  
pp. 355-369 ◽  
Author(s):  
Jane E. Dutton ◽  
Susan J. Ashford ◽  
Katherine A. Lawrence ◽  
Kathi Miner-Rubino
Keyword(s):  
Organizational Context ◽  
Red Light ◽  
Green Light ◽  
Making Sense ◽  
Issue Selling ◽  
Light Green

Red Light, Green Light

2021 ◽  
pp. 135-137
Author(s):  
Laurie E. Westphal
Keyword(s):  
Red Light ◽  
Green Light ◽  
Light Green

Saponite, Corrensite and Chlorite-Saponite Mixed-Layers in the Sancerre-Couy Deep Drill-Hole (France)

Clay Minerals ◽  
1994 ◽  
Vol 29 (1) ◽  
pp. 47-61 ◽  
Author(s):  
D. Beaufort ◽  
A. Meunier
Keyword(s):  
Chemical Composition ◽  
Drill Hole ◽  
X Ray Diffraction ◽  
Parental Relationships ◽  
Clay Deposits ◽  
Fe Content ◽  
Three Samples ◽  
Structural Formulae ◽  
Layer Mineral ◽  
Mixed Layers

AbstractThe clay deposits in fractures of the metamorphic basement under the Paris Basin sedimentary formations at Sancerre-Couy (France) are composed of trioctahedral species which are exceptionally well crystallized. Three samples were chosen in order to study the chemical composition of 100% expandable saponite, 50% expandable corrensite and 10% expandable chlorite-saponite mixed-layer mineral C90–S10 Two sets of microchemical analyses were performed in order to determine the variations of the composition on large and small numbers of particles. X-ray diffraction (XRD) and Mössbauer spectrometry were performed on purified samples.The mathematical decomposition of Si, Al and Mg histograms established from microanalyses of a large number of crystals of saponite, corrensite and C90–S10 evidences bimodal populations. The total Fe content of the three species is unimodal whatever the chemical composition of the surrounding rock and the Fe2+/Fe3+ ratio. The structural formulae established from a large number of microanalyses of a few particles show that there are no parental relationships between saponite, corrensite and C90–S10. The expandable layer of corrensite is characterized by a high charge. It is proposed that the tetrahedral sheets adjacent to the brucitic sheet and the exchangeable interlayer in a 2 : 1 unit are identical in corrensite.

Assessing the effect of ingredients variability on the composition of the final complete feed for swine

2019 ◽  
Vol 99 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Lluís Fabà ◽  
David Solà-Oriol ◽  
Aitor Balfagon ◽  
Jaume Coma ◽  
Josep Gasa
Keyword(s):  
Chemical Composition ◽  
Crude Protein ◽  
Near Infrared ◽  
Chemical Components ◽  
Small Scale ◽  
Diet Formulation ◽  
Three Samples ◽  
Ingredient Composition ◽  
Fattening Pigs ◽  
Theoretical Procedure

To characterize the variability of 11 feed ingredients and their impact on the final feed, 728 ingredient samples were collected during 5 months in a feed-plant and were analyzed by near-infrared spectrophotometry (NIRS). Six diets for fattening pigs and gestating sows were formulated using regional information of ingredient chemical composition (reference): LIM, limited; EU, common European; and MULT, multi-ingredient; respectively, including 5, 7, and 10 ingredients. The formulas were replicated 15 times using actual chemical composition (NIRS) from three samples per ingredient and month. This theoretical procedure was validated through small-scale manufacturing 30 LIM-diets, which samples were proximal (PA) and NIRS analyzed for dry matter and crude protein (CP) contents. Those mixtures were also PA analyzed. The ingredients showed coefficient of variation (CV %) higher for crude fiber (CF) (2.6%–18.3%) than CP (2.0%–9.3%). Comparing all diets for all chemical components, variability was reduced when including more ingredients from 0.5%–5.5% to 0.3%–2.6% CV. In most cases, the actual chemical composition of the diets underestimated their reference formula (1.3%–10.8%, CP and CF). A deviation from the targeted diet occurs if variability is not regarded. Therefore, a proper method to predict ingredient composition and nutritional value before use may increase the accuracy of diet formulation between 2% and 10%.

Neobartsia matuy (Orobanchaceae), a new species from the Colombian Andes

Phytotaxa ◽  
2019 ◽  
Vol 424 (2) ◽  
pp. 87-96
Author(s):  
MARIA DEL PILAR MALAGON ◽  
HUMBERTO MENDOZA-CIFUENTES ◽  
SOFIA GÓMEZ-PARRA ◽  
SIMON URIBE-CONVERS
Keyword(s):  
New Species ◽  
Sea Level ◽  
Related Species ◽  
Corolla Tube ◽  
Glandular Hairs ◽  
Yellowish Green ◽  
Colombian Andes ◽  
Floral Bracts ◽  
Light Green ◽  
A New Species

A new species of Neobartsia endemic to the eastern Andes of Colombia is described, illustrated, and compared with related species. This species belongs to section Orthocarpiflorae and morphologically it is characterized by having floral bracts light green with glandular hairs, corolla yellowish green, the galea cucullate, longer than the lip, retrorsely glandular-puberulous, the lip three-lobed, glabrous and the corolla tube decurved. Currently, it is only known from two localities in the Colombian department of Boyacá, where it grows in the páramo ecosystem between 3528 and 3639 meters above sea level on rocky soil with grassy vegetation.

scholarly journals Hygienic indicators and chemical composition of Prgica cheese produced from raw and pasteurised milks

2013 ◽  
Vol 31 (No. 3) ◽  
pp. 217-221
Author(s):  
K. Valkaj ◽  
S. Kalit ◽  
M.T. Kalit ◽  
W.L. Wendorff
Keyword(s):  
Chemical Composition ◽  
Microbiological Quality ◽  
Raw Milk ◽  
Red Pepper ◽  
Aspergillus Ochraceus ◽  
Family Farms ◽  
Three Samples ◽  
Candida Famata ◽  
Two Samples ◽  
Red Peppers

The hygienic indicators and chemical composition of Prgica cheese produced from raw and pasteurised milks as well as the microbiological quality of dry red pepper used in the cheese production were investigated.. Prgica cheeses and originally packed dry red peppers were collected from five family farms and five vacuum-packed Prgica cheese samples were purchased from the supermarkets. Significantly lower fat (P < 0.01), protein, and total solids contents (P < 0.0001) of artisanal Prgica cheese in comparison to Prgica cheese purchased from the supermarkets were detected. Two samples of cheese produced on family farms and three samples purchased from the supermarkets had high numbers of yeasts and moulds. The yeasts Mucor sp. and Candida famata, and moulds Aspergillus niger and Aspergillus ochraceus, were detected in dry red pepper. The results showed that there was potential yeast and mould contamination among the Prgica cheeses produced from raw milk, as well as Prgica cheeses purchased from the supermarkets, produced from pasteurised milk under controlled conditions, also contained high numbers of yeasts and moulds probably due to contamination by dry red pepper used in their production.  

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