scholarly journals Trace elements in the alimentary tract of Svalbard reindeer

Rangifer ◽  
1985 ◽  
Vol 5 (2) ◽  
pp. 15 ◽  
Author(s):  
Hans Staaland
Keyword(s):  
Trace Elements ◽  
Distal Part ◽  
Alimentary Tract ◽  
General Pattern ◽  
Svalbard Reindeer ◽  
Very High

<p>In the alimentary tract of Svalbard reindeer concentrations of Fe and Co were higher in winter than in summer, whereas the concentrations of Mn and Cu were equal in both seasons. Zn concentrations were higher in summer throughout the alimentary tract, but Mo were highest only in the distal part. The general pattern of absorption in the alimentary tract seems to correspond to findings in other ruminants. The very high levels of Fe and Co are emphasized.</p><p>Sporelementer i ford&oslash;yelseskanalen hos Svalbard-rein.</p><p>Abstract in Norwegian / Sammendrag: Konsentrasjonen av Fe og Co i ford&oslash;yelsessystemet hos Svalbard-rein var h&oslash;yere om vinteren enn om sommeren, mens konsentrasjonene av Mn og Cu var like vinter og sommer. Zn konsentrasjonene var h&oslash;yest om sommeren gjennom hele ford&oslash;yelsessystemet, mens Mo konsentrasjonene var h&oslash;yest i det distale avsnittet. Det generelle absorbsjonsm&oslash;nster synes &aring; stemme overens med funn fra andre dr&oslash;vtyggere. De sv&aelig;rt h&oslash;ye niv&aring;er av Fe og Co blir fremhevet.</p><p>Huippuvuorten peuran ruoansulatuskanavan ilmaisijaelementeist&aring;.</p><p>Abstract in Finnish / Yhteenveto: Huippuvuorten peuran ruoansulatuskanavassa mitattiin talvella korkeammat Fe- ja Co-pitoisuudet kuin kesalla, kun taas Mn- ja Cu-pitoisuudet olivat samanlaisia kes&aring;lla ja talvella. Zn-pitoisuudet olivat korkeimmillaan kes&aring;ll&aring; koko ruoansulatuskanavassa, kun taas Mo-pitoisuudet olivat korkeimmat kanavan distaaliosassa. Yleinen absorptiomalli nayttaa hyvin sopivan yhteen muilla m&aring;rehtijoilla tehtyjen loydosten kanssa. Tutkimuksessa korostetaan raudan ja koboltin erityisen korkeaa tasoa.</p>

scholarly journals Ability of metal trace elements accumulation by Lichens, Xanthoria parietina and Ramalina farinacea, in Megres area (Setif, Algeria)

2021 ◽  
Vol 8 (1) ◽  
pp. 91-108
Author(s):  
Belguidoum Amina ◽  
Lograda Takia ◽  
Ramdani Messaoud
Keyword(s):  
Trace Elements ◽  
General Pattern ◽  
Atomic Absorption Spectrophotometry ◽  
Absorption Spectrophotometry ◽  
Metal Trace ◽  
Xanthoria Parietina ◽  
Metal Trace Elements ◽  
Ecological Importance ◽  
Very High ◽  
Ramalina Farinacea

Abstract The accumulating ability of the atmospheric Metal Trace Elements (MTE) of two lichenic species thalli; Xanthoria parietina and Ramalina farinacea were evaluated in the region of Megres. The recorded concentrations of MTE (Fe, Cu, Mn, Cd, and Pb) were determined by atomic absorption spectrophotometry (AASF). The ability to accumulate MTE in X. parietina thalli is considerably greater than that of the fruticulous lichen R. farinacea in all stations studied. The general pattern of the elements accumulated in the thalli of the two species in decreasing order of their concentrations was Fe> Mn> Pb> Cu> Cd. The Fe values are very high in X. parietina thalli with an average of 35237.5 ± 3394.2 mg/kg dry wt. In contrast, the Pb concentrations are high, especially in the southern station of the Megres region. The results showed that X. parietina is a hyper-accumulating species of MTE, compared to R. farinacea. This work highlights the ecological importance of this species as a stable and resistant pioneer in this fragile region.

scholarly journals Contribution of Major Groups of Food Products to the Daily Intake of Selected Elements—Results from Analytical Determinations Supported by Chemometric Analysis

Nutrients ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3412
Author(s):  
Wojciech Koch ◽  
Marcin Czop ◽  
Agnieszka Nawrocka ◽  
Dariusz Wiącek
Keyword(s):  
Trace Elements ◽  
Dietary Intake ◽  
Daily Intake ◽  
Food Groups ◽  
Icp Oes ◽  
High Intake ◽  
Sodium Potassium ◽  
Milk Products ◽  
Dietary Recall ◽  
Very High

Food is a major source of minerals for humans. The main objective of this study was to determine the intake level of 10 essential macro- (Na, K, Ca, and Mg) and trace elements (Cu, Zn, Mn, Fe, Cr, and Se) with major food groups among young adults. Dietary intake of elements was evaluated using the 24-h dietary recall technique in combination with F-AAS and ICP-OES methods. A very high intake of sodium and a very low intake of calcium, combined with inappropriate sodium/potassium ratio, may be harmful to the health of the population. Dietary intake of trace elements was within the range of reference values in the subjects, with cereals being the major source of a majority of those elements, while meat (38% for Na), vegetables (25% for K), and milk products (75% for Ca) were the main contributors to the daily dietary intake of macroelements. PCA revealed several visible trends in the datasetAmong men, the intake of Zn, Cr Na and K was significantly correlated with the consumption of meat and vegetables, whereas Mg, Se, Fe and Cu with cereals and water and beverages. Among women, the intake of Mg was significantly correlated with the consumption of meat and vegetables.

scholarly journals Transfer of trace elements with low soil mobility into plants

2011 ◽  
Vol 48 (No. 2) ◽  
pp. 45-50
Author(s):  
J. Němeček ◽  
E. Podlešáková ◽  
R. Vácha
Keyword(s):  
Trace Elements ◽  
Critical Values ◽  
Anthropogenic Contamination ◽  
Critical Loading ◽  
Plant Soil ◽  
Mobile Forms ◽  
Soil Mobility ◽  
Very High

Trace elements with a low mobility and with a low transfer are Cu, As, Be, V, Cr, Hg. Copper has at low mobility an increased transfer quotient (content plant/soil). The lowest mobility and transfer show Cr and Hg. Only at the very high contents or increased mobilities of trace elements, which accompany the anthropogenic contamination, soil critical loading for crops can be attained. Because of the amount of the examined extremes, it was not possible to derive the proper critical values. Therefore we were able to assess only critical protective values. They represent minimum total contents of trace elements or their mobile forms, which eliminate risks.

Carbonized Treatment of Biological Samples for High Beam Current PIXE - its advantages and problems -

1996 ◽  
Vol 06 (01n02) ◽  
pp. 155-166 ◽  
Author(s):  
M. KOHNO ◽  
K. YOSHIDA ◽  
K. MORITANI ◽  
K. NORIZAWA ◽  
M. NAITO ◽  
...  
Keyword(s):  
Trace Elements ◽  
Biological Samples ◽  
Beam Current ◽  
High Current ◽  
Measuring Time ◽  
High Beam ◽  
Japanese Paper ◽  
High Beam Current ◽  
Heating Up ◽  
Very High

Trace elements in ancient Chinese ink, ancient Chinese paper of sutras, ancient Japanese paper of manuscripts, modem Japanese paper and some plants were analyzed by PIXE. Part of these samples were carbonized at 400°C in vacuum of several torrs. These carbonized biological samples were able to resist very high current of 2 MeV He + (500 nA/mm 2 on target) for more than 30 minutes. The observation indicates that the carbonized samples save the measuring time by using high beam current. But mercury and sulfur contained in red Chinese ink on the paper were lost through the carbonization and lead in the same sample was lost by heating up during the measurement on condition that it was irradiated by 2 MeV He + (50 nA/mm 2 to 230 nA/mm 2). A small part of iron was gradually lost on the same condition. Under 230 nA/mm 2, a small portion of calcium was lost but no portion of chromium was lost.

scholarly journals Mineral nutrition and alimentary pools in muskoxen and caribou on the Angujaartorfiup Nunaa range in West Greenland

Rangifer ◽  
1999 ◽  
Vol 19 (1) ◽  
pp. 33
Author(s):  
Hans Staaland ◽  
Carsten Riis Olesen
Keyword(s):  
Mineral Nutrition ◽  
Crude Protein ◽  
Distal Part ◽  
Alimentary Tract ◽  
Total Content ◽  
Proximal Colon ◽  
Summer Season ◽  
West Greenland ◽  
Mineral Licks ◽  
High Concentrations

<p>Minerals (Na, K, Cl, Ca, P, Mg) and crude protein concentrations as well as total contents were measured throughout the alimentary tract of muskoxen and caribou from Angujaatorfiup Nunaa range, S&oslash;ndre Str&oslash;mfjord area in West Greenland. The muskoxen had significantly higher K concentrations in the caecum and proximal colon than the caribou. Caribou collected during the summer season had the highest Mg concentrations throughout the alimentary tract. In both species water, Na, K and CI concentrations decreased through the distal part of the alimentary system whereas Ca, Mg, P and crude protein concentrations increased. The muskoxen had relatively larger mineral pools and total content in the omasum than the caribou, and the caribou relatively larger mineral pools (except K and CI) and total content in the caecum. Higher concentrations of Mg in the alimentary tract of the caribou than the muskoxen during the summer could also indicate that the caribou feed more on herbs with high concentrations of Mg. The data does also indicate that both the caribou and the muskoxen are living in an area where high intakes of minerals from both vegetation and mineral licks are possible. Based on the present study the muskoxen is apparently a typical grazer whereas the caribou is more like a concentrate selector.</p>

TRACE ELEMENTS AND SULFUR IN THE SOILS OF REFERENCE SITES OF THE VLADIMIR REGION

2021 ◽  
Author(s):  
Utkin A.A. Utkin A.A. ◽  
Keyword(s):  
Trace Elements ◽  
High Availability ◽  
Average Content ◽  
Reference Sites ◽  
Vladimir Region ◽  
Very High ◽  
Observation Period

It was determined that the studied soils had a high and very high availability of mobile boron, zinc, copper and low – molybdenum and sulfur. The average content of boron, zinc and copper increased during the observation period, and sulfur decreased.

Presumed Chemosensory Hairs in Talitrid Amphipods (Crustacea)

1974 ◽  
Vol 4 (3) ◽  
pp. 171-180 ◽  
Author(s):  
ERIK DAHL
Keyword(s):  
Body Wall ◽  
Distal Part ◽  
General Pattern ◽  
Sensory Information ◽  
The Body ◽  
Similar Function ◽  
Terminal Part ◽  
Sensory Hairs ◽  
Thin Walled ◽  
Cuticular Structures

Abstract Sensory hairs in a number of Talitrid Amphipods were studied by means of scanning electron microscopy. The general pattern is closely similar in all species although minor specific differences seem to occur. Two main morphological types of sensory hairs are present, viz (1) thin-walled hairs and (2) hairs protected by a spine from which only the distal part of the hair protrudes subterminally, giving the impression of a two-tipped spine. Some intermediate types also occur. The terminal part of both types of hair, however, is of exactly the same type with leaf-like protecting cuticular structures and a terminal pore. Therefore it is concluded that they all have at least a similar function, and a previously published analysis of antennular thin-walled hairs in two of the species makes it highly probable on morphological grounds that this function is chemosensory. Both types of hairs are widely distributed on the appendages, although the spine-hairs are more prevalent on the pereiopods, uropods, and telson. Practically every spine carries a sensory appendage and it can be concluded that a wealth of sensory information is received by them. The body wall is provided with numerous structures described in the paper, the function of which is unknown but may well be sensory.

scholarly journals Further studies on the inhibition of colonization of the chicken alimentary tract withSalmonella typhimuriumby pre–colonization with an avirulent mutant

1990 ◽  
Vol 104 (3) ◽  
pp. 427-441 ◽  
Author(s):  
A. Berchieri ◽  
P. A. Barrow
Keyword(s):  
Oral Administration ◽  
Salmonella Typhimurium ◽  
Nalidixic Acid ◽  
Alimentary Tract ◽  
Resistant Mutant ◽  
Challenge Dose ◽  
Faecal Excretion ◽  
Rough Strain ◽  
Very High ◽  
Better Than

SUMMARYOral administration to newly hatched chickens or to chicks up to 5 days of age with an avirulent, rough, spectinomycin–resistant mutant ofSalmonella typhimuriumstrain F98 inhibited the colonization of a nalidixic acid–resistant mutant of the same strain administered by the same route 1 day later. The second strain passed rapidly through the alimentary tract and persisted in the caeca of only a few chickens. Resistance to colonization did not develop until 24 h after inoculation of the first strain but was still evident if the second strain was inoculated up to 7 days later. Resistance occurred in 5 different breeds of chicken and in chickens reared on 5 different diets. Protection was evident against a very high challenge dose and could be produced by the introduction of small numbers of the first strain. Pre–colonization of chicks with the first strain of F98 reduced faecal excretion of the second strain over many weeks, whether chickens were challenged directly or by contact with other infected chickens. The rough strain F98 produced protection against only a few S.typhimuriumstrains and not against other serotypes. However, strains of S.infantisandS. heidelberg, chosen because they colonized the chicken alimentary tract better than did F98, produced inhibition of a wider range of serotypes.

The Structure and Radiographic Anatomy of the Alimentary Tract of the Tammar Wallaby, Macropus Eugenii (Marsupialia) 1. The Stomach.

1980 ◽  
Vol 28 (3) ◽  
pp. 367 ◽  
Author(s):  
KC Richardson
Keyword(s):  
Gastric Emptying ◽  
Contrast Agent ◽  
Distal Part ◽  
Alimentary Tract ◽  
Tammar Wallaby ◽  
Barium Sulphate ◽  
Macropus Eugenii ◽  
Middle Compartment ◽  
The Right

A description is given of the gross and radiographic anatomy of the stomach of Macropus eugenii. The stomach is in the form of a sigmoid tube beginning at a blind sac on the left side and ending at the caudally directed pylorus on the right side. It is haustrated over the whole length of the proximal compartment and most of the middle compartment. The distal part of the middle compartment, and the distal compartment, are not haustrated. The time, but not the pattern, of distribution and mixing with digesta of orally administered barium sulphate is shown to be different in wallabies which had been recently fed and those which had not been fed for 24 h. The contrast agent was carried from the cardia towards the caudal gastric flexure along the ventricular groove. The barium sulphate first dispersed both cranially and caudally from the ends of the groove and was subsequently mixed with digesta. Gastric emptying was difficult to determine radiographically. No radiopaque material was seen in the duodenum, and digesta were therefore assumed to have passed rapidly through into the jejunum.

scholarly journals Assessment of the usability of Tam Bo bentonite (Di Linh - Lam Dong) for peloid

2020 ◽  
Vol 42 (4) ◽  
Author(s):  
Tran Thi Man ◽  
Tran Thi Lan ◽  
Nguyen Anh Duong ◽  
Phan Luu Anh
Keyword(s):  
Trace Elements ◽  
Pathogenic Bacteria ◽  
Ph Value ◽  
Xrd Analysis ◽  
The Other ◽  
Mineral Component ◽  
Analysis Method ◽  
Icp Oes ◽  
Commercial Use ◽  
Very High

The study was carried out to assess the suitability of Tam Bo bentonite for application in peloid. By using the XRD analysis method, the results showed that the mineral component of Tam Bo bentonite was mainly smectite (montmorillonite) (55–73%), illite (10-14%), quartz (10–16%), and minor minerals such as siderite, feldspar, goethite, chlorite and kaolinite. Chemical composition of the samples analyzed by the XRF method composed of a high amount of SiO2 (51.38–55.16%) and Fe2O3 (5.31–7.97%), low content of Al2O3 (14.58–20.87%), and the other oxides with low content. The analysis result using the ICP-OES method indicated that bentonites in Tam Bo consisted of trace elements such as As, Ba, Cr, Cd, Co, Cu, La, La, Pb, Sb, Sc, V, Zn, and their content is similar to the values in peloid for the commercial use. Tam Bo bentonite has a pH value of 8.17, a very high CEC index (71 mg/100g), a plasticity index of 28%, expandability of 70%. All of the samples did not contain pathogenic bacteria. The study result confirms that Tam Bo bentonite responses to the criteria for making the peloid and similar to the peloids of Vale das Furnas (in Portugal), Calda (in Italy), Archena (in Spain).

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