Articoli di riviste: "Trace elements"

1

Strachan, Stephanie. "Trace elements". Current Anaesthesia & Critical Care 21, n. 1 (febbraio 2010): 44–48. http://dx.doi.org/10.1016/j.cacc.2009.08.004.

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Lehrman, Sally. "Trace Elements". Scientific American 294, n. 6 (giugno 2006): 16–18. http://dx.doi.org/10.1038/scientificamerican0606-16.

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Grupe, Gisela, e Klaus Dörner. "Trace elements in excavated human hair". Zeitschrift für Morphologie und Anthropologie 77, n. 3 (3 maggio 1989): 297–308. http://dx.doi.org/10.1127/zma/77/1989/297.

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4

Barandier, C., e J. de Leiris. "Antioxidant trace elements". Pathophysiology 5 (giugno 1998): 16. http://dx.doi.org/10.1016/s0928-4680(98)80337-4.

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5

Hayes, Michelle. "Trace elements – Commentary". Current Anaesthesia & Critical Care 21, n. 1 (febbraio 2010): 49. http://dx.doi.org/10.1016/j.cacc.2009.08.005.

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6

Dykyy, Anastasiya. "MINERALS AND TRACE ELEMENTS IN CYSTIC FIBROSIS". Trace Elements in Medicine (Moscow) 16, n. 1 (2015): 3–10. http://dx.doi.org/10.19112/2413-6174-2015-16-1-3-10.

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7

Okazaki, Masayuki. "APATITES WITH TRACE ELEMENTS". Phosphorus Research Bulletin 17 (2004): 1–8. http://dx.doi.org/10.3363/prb1992.17.0_1.

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8

Doner, Harvey E. "Trace Elements in Soils". Crop Science 42, n. 4 (luglio 2002): 1389. http://dx.doi.org/10.2135/cropsci2002.1389a.

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9

Shah, H. A. "Trace Elements in Nutrition". Pediatrics in Review 16, n. 9 (1 settembre 1995): 352. http://dx.doi.org/10.1542/pir.16-9-352.

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Shah, Heena A. "Trace Elements in Nutrition". Pediatrics In Review 16, n. 9 (1 settembre 1995): 352. http://dx.doi.org/10.1542/pir.16.9.352.

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Trace elements other than iron only recently have gained importance in infant nutrition. Zinc and copper are two of the most essential trace elements. Zinc is a constituent of more than 100 metalloenzymes and plays an important role in growth, reproduction, tissue repair, and cellular immunity. Copper is a component of several metalloenzymes and is required for oxidative metabolism. Nutritional deficiencies of zinc now are recognized as being fairly prevalent throughout the world. Symptomatic zinc deficiency among infants can be attributed to several factors. It can be secondary to low zinc concentration in breast milk, low stores (as in prematurity), malabsorption (as in acrodermatitis enteropathica), or absence or inadequate amount in parenteral nutrition.

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11

Elízaga, V. I., E. Frizell e A. Sola. "Trace Elements in Perinatology". Journal of Obstetrics and Gynaecology 7, sup1 (gennaio 1986): S3. http://dx.doi.org/10.3109/01443618609089344.

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12

POPESCU, Elena, e Ana Maria Alexandra STANESCU. "Trace Elements and Cancer". Medicina Moderna - Modern Medicine 26, n. 4 (30 dicembre 2019): 169–75. http://dx.doi.org/10.31689/rmm.2019.26.4.169.

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13

Hosokawa, S., A. Oyamaguchi e O. Yoshida. "Trace Elements and Plasmapheresis". International Journal of Artificial Organs 14, n. 4 (aprile 1991): 242–45. http://dx.doi.org/10.1177/039139889101400408.

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14

O'Dell, Boyd L. "Bioavailability of Trace Elements". Nutrition Reviews 42, n. 9 (27 aprile 2009): 301–8. http://dx.doi.org/10.1111/j.1753-4887.1984.tb02370.x.

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15

NOMIYAMA, KAZUO, e HIROKO NOMIYAMA. "TRACE ELEMENTS IN MEDICINE". International Journal of PIXE 02, n. 03 (gennaio 1992): 189–96. http://dx.doi.org/10.1142/s012908359200018x.

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1) ZINC: In 1963, Prasad found that dwarfism in Egypt was caused by zinc deficiency. Since then, many clinical pictures involving zinc deficiency have been reported on, such as alopecia (baldness), intestinal acrodermatitis (dermatitis of the extremities), alcohol-induced anencephalic children, and depressed immune response. 2) COPPER: Wilson’s disease is characterized by hepato-cerebral degeneration, which is caused by the deposition of copper in the liver and the cerebrum. Chelete therapy has been applied to remove the copper from the organs in order to treat Wilson’s disease. However, during the last several years zinc or manganese has also been applied to remove copper. The therapy mechanism is based on the interaction of copper to zinc and manganese. Zinc and copper deficiency is also an important topic in medical elementology. 3) MERCURY: Sir Isaac Newton was well known to be distrustful of others in his last years. The clinical picture was characterized by severe neuropathy, which was caused by heavy exposure to mercury during his long scholarly life. Children sometimes break thermometer in their mouth. Does metallic mercury in the thermometer induce mercury intoxication ? The answer is no. Intestinal absorption of metallic mercury is quite low, and thus ingested mercury rarely induces intoxication. The mercury is simply excreted through the feces within a day or two. One should attempt to wash the mercury out from the stomach with water. However, do not treat the child with laxatives, as they can increase the intestinal absorption of mercury, resulting in intoxication. 4) METHYLMERCURY: Severe neuropathy was endemic among fishermen and their families in a particular area of Kyushu Island, Japan. They were found to have eaten a great amount of fish, which were contaminated with organic mercury emitted from a fertilizer producing plant. The disease was later named as Minamata disease. The total number of recognized patients has amounted to 3,000 people, to date. 5) CADMIUM: Cadmium deficiency was recently found to depress the development of baby animals by Anke. This finding suggests that cadmium is not only a harmful element but also an essential element. Itai-Itai disease is characterized as osteomalacia, which is followed by severe renal tubular damage. Patients were comprised largely of elderly women who lived in the Jintsu river basin over a long period, and ingested excess cadmium emitted from a mine, which contaminated the local rice and drinking water. Long-term monkey experiments could not demonstrate osteomalacia by cadmium, however, epidemiological and experimental studies showed that an age-related increase in blood pressure is accelerated by cadmium at low doses, but depressed by cadmium at high doses. 6) LEAD: Lead is a very useful element, but a very harmful element as well. Lead has a potent hematopoietic effect on adults, and also negative psycho-neurological effects on babies. Soil pollution from lead has been discussed in relation to depressed intelligence among children living in U. S. slums. Sometimes residents in rural areas are shot with lead slugs by mistake. Do does lead slugs cause lead intoxication? Usually not. Medication is necessary only when lead slugs injure blood vessels or neurons. Most lead slugs do not induce lead intoxication because the lead slugs are soon covered with granular tissues. 7) CHROMIUM: Chromium is one of the essential trace elements, and is related to glucose tolerance and transmission velocity of peripheral nerves. Adverse effects of excessive chromium are chromium ulcers, perforation of the nasal septum, and lung cancer. 8) ARSENIC: Neutron activation analysis revealed excess amounts of arsenic in the hair of Napoleon. It was then suspected that he was killed with arsenic. Concerning the cause of his death, it was shown that grapes were disinfected with arsenic in those days, and that Napoleon might have consumed excess arsenic from drinking wine. However, the cause of his death remains unsolved. On the other hand, arsenic was used to promote health in Austria. Huge doses of arsenic, lethal for ordinary people, were administered to Austrian youths to assist them in Alpinc hiking. Japanese, especially residents in seashore areas, eat sizable amounts of sea weeds, which contain a huge amount of arsenic. Do they suffer from arsenic intoxication? The answer is no. The chemical form of arsenic in sea weeds is methyl-arsenic, the detoxicated chemical form, which does not revert to the active chemical form of arsenic.

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16

Gault, M. H., L. Longerich e H. Longerich. "Trace Elements and Hemodialysis". Nephron 58, n. 4 (1991): 498–99. http://dx.doi.org/10.1159/000186494.

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17

Mäkelä, A. L., M. Arola, T. T: Salmi, H. Hyörä, K. Vuorinen, T. Bergman e V. N$auntö. "Trace Elements and Plasmapheresis". Acta Paediatrica 75, n. 5 (settembre 1986): 864–65. http://dx.doi.org/10.1111/j.1651-2227.1986.tb10304.x.

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18

Bergomi, Margherita, Giovanni Pellacani, Marco Vinceti, Stefania Bassissi, Carlotta Malagoli, Dorothea Alber, Sabina Sieri, Luciano Vescovi, Stefania Seidenari e Roberto Vivoli. "Trace elements and melanoma". Journal of Trace Elements in Medicine and Biology 19, n. 1 (settembre 2005): 69–73. http://dx.doi.org/10.1016/j.jtemb.2005.06.002.

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19

Hamilton-Taylor, John. "Determination of trace elements". Environmental Pollution 91, n. 3 (1996): 406. http://dx.doi.org/10.1016/s0269-7491(96)90003-2.

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20

Hill, Steve J. "Determination of trace elements". TrAC Trends in Analytical Chemistry 15, n. 2 (febbraio 1996): VI—VII. http://dx.doi.org/10.1016/s0165-9936(96)90029-1.

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21

Yülek, Fatma, Hasan Basri Çakmak, Şaban Şimşek, Utku Serkant e Şebnem Kösebalaban. "Trace elements and blepharıtıs". Contact Lens and Anterior Eye 32, n. 3 (giugno 2009): 120–22. http://dx.doi.org/10.1016/j.clae.2008.10.007.

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22

Zumkley, H. "Trace elements in medicine". Fresenius' Zeitschrift für analytische Chemie 327, n. 1 (gennaio 1987): 6. http://dx.doi.org/10.1007/bf00474512.

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23

Fairweather-Tait, Susan J. "Bioavailability of trace elements". Food Chemistry 43, n. 3 (gennaio 1992): 213–17. http://dx.doi.org/10.1016/0308-8146(92)90176-3.

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24

Cloke, M. "Trace elements in coal". Fuel 70, n. 7 (luglio 1991): 901. http://dx.doi.org/10.1016/0016-2361(91)90204-n.

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25

Dinsmore, W. W., Dorothy McMaster, M. E. Callender, K. D. Buchanan e A. H. G. Love. "Trace elements and alcohol". Science of The Total Environment 42, n. 1-2 (marzo 1985): 109–19. http://dx.doi.org/10.1016/0048-9697(85)90011-7.

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26

Howard, Alan G. "Determination of trace elements". Journal of Electroanalytical Chemistry 393, n. 1-2 (agosto 1995): 141. http://dx.doi.org/10.1016/0022-0728(95)90281-3.

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27

Filler, Guido, e Sarah Felder. "Trace elements in dialysis". Pediatric Nephrology 29, n. 8 (16 agosto 2013): 1329–35. http://dx.doi.org/10.1007/s00467-013-2585-6.

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28

Goodarzi, F. "Trace elements in coal". International Journal of Coal Geology 20, n. 1-2 (febbraio 1992): 179–80. http://dx.doi.org/10.1016/0166-5162(92)90010-t.

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29

Koudrine, A. V. "Trace Elements and Apoptosis". Journal of Trace Elements in Medicine and Biology 12, n. 2 (luglio 1998): 65–76. http://dx.doi.org/10.1016/s0946-672x(98)80028-x.

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30

Tamás, Ferenc D., e János Abonyi. "Trace elements in clinker". Cement and Concrete Research 32, n. 8 (agosto 2002): 1319–23. http://dx.doi.org/10.1016/s0008-8846(02)00794-9.

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31

Tamás, Ferenc D., János Abonyi, János Borszéki e Pál Halmos. "Trace elements in clinker". Cement and Concrete Research 32, n. 8 (agosto 2002): 1325–30. http://dx.doi.org/10.1016/s0008-8846(02)00797-4.

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32

Halls, D. J. "Determination of Trace Elements". Analytica Chimica Acta 313, n. 3 (settembre 1995): 259. http://dx.doi.org/10.1016/0003-2670(95)90095-0.

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33

Demerdash, Hala Mourad. "Obesity and Trace Elements". Obesity Research - Open Journal 2, n. 3 (19 novembre 2015): 98–100. http://dx.doi.org/10.17140/oroj-2-115.

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34

Khramova, E. P., K. P. Koutzenogij, G. A. Kovalskaya e O. V. Chankina. "Trace Elements in DifferentPentaphylloidesfruticosaEcotypes". Journal of Trace and Microprobe Techniques 21, n. 1 (2 gennaio 2003): 133–45. http://dx.doi.org/10.1081/tma-120017905.

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35

Campos, Valquiria. "Trace Elements in Pesticides". Communications in Soil Science and Plant Analysis 34, n. 9-10 (maggio 2003): 1261–68. http://dx.doi.org/10.1081/css-120020442.

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36

Tack, Filip M. G. "Trace Elements in Potato". Potato Research 57, n. 3-4 (dicembre 2014): 311–25. http://dx.doi.org/10.1007/s11540-014-9268-y.

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37

Contiero, Eva, e Marcella Folin. "Trace elements nutritional status". Biological Trace Element Research 40, n. 2 (giugno 1994): 151–60. http://dx.doi.org/10.1007/bf02950788.

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38

Wedepohl, K. Hans. "Trace Elements in Coal". Geochimica et Cosmochimica Acta 55, n. 3 (marzo 1991): 927–28. http://dx.doi.org/10.1016/0016-7037(91)90357-b.

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39

Diplock, AT. "Micronutrients and trace elements". Cancer Letters 39 (marzo 1988): S12. http://dx.doi.org/10.1016/0304-3835(88)90131-0.

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40

Davidson, R., e L. Clarke. "Trace elements in coal". Fuel and Energy Abstracts 37, n. 3 (maggio 1996): 230. http://dx.doi.org/10.1016/0140-6701(96)89248-4.

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41

Finkelman, Robert B. "Trace elements in coal". Biological Trace Element Research 67, n. 3 (marzo 1999): 197–204. http://dx.doi.org/10.1007/bf02784420.

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42

Cornelis, R., F. Borguet e J. De Kimpe. "Trace elements in medicine". Analytica Chimica Acta 283, n. 1 (novembre 1993): 183–89. http://dx.doi.org/10.1016/0003-2670(93)85221-5.

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43

Thomas, Adrian G. "Vitamins and trace elements". Current Paediatrics 2, n. 3 (settembre 1992): 172–74. http://dx.doi.org/10.1016/0957-5839(92)90259-t.

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44

Hadrzynski, Christian. "Diabetes and trace elements". Journal of Trace Elements in Experimental Medicine 12, n. 4 (1999): 367–74. http://dx.doi.org/10.1002/(sici)1520-670x(1999)12:4<367::aid-jtra10>3.0.co;2-p.

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45

Marr, I. L. "Determination of trace elements". Talanta 42, n. 12 (dicembre 1995): 2090. http://dx.doi.org/10.1016/0039-9140(95)90041-1.

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46

Zulfi, Zulfi, Joko Suryana e Achmad Munir. "A Decoupling Technique for Beamforming Antenna Arrays Using Simple Guard Trace Structures". Journal of ICT Research and Applications 17, n. 3 (31 dicembre 2023): 356–72. http://dx.doi.org/10.5614/itbj.ict.res.appl.2023.17.3.5.

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Abstract (sommario):

This paper discusses decoupling techniques for suppressing electromagnetic coupling between elements of beamforming antenna arrays. Guard trace structures, which are commonly used for crosstalk reduction on printed circuit board technology, are proposed to be inserted between the array elements for coupling reduction. Two types of guard trace structures, i.e., straight guard traces and serpentine guard traces, were explored, and the effect of using via holes on both types of guard traces was studied. For this purpose, two-element antenna arrays with guard trace structures inserted between array elements were designed and simulated. The simulation results showed that a straight guard trace with vias (straight GTV) and a serpentine guard trace without vias (serpentine GT) could effectively reduce EM coupling between elements of array antennas. To verify the simulation results, prototypes of antenna arrays with straight GTV and serpentine GT were realized and measured. The measurement results showed coupling reductions of 5 dB and 6.4 dB could be achieved when straight GTV and serpentine GT are inserted between two array elements separated by edge-to-edge distances of 4 mm and 9.05 mm, respectively. Therefore, the proposed decoupling technique is suitable for beamforming antenna arrays with a very close distance between array elements.

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47

Koreňovská, M., e O. Poláčeková. "Trace elements content in virgin sunflower oil production". Czech Journal of Food Sciences 18, No. 2 (1 gennaio 2000): 61–65. http://dx.doi.org/10.17221/8311-cjfs.

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Trace elements content Cd, As, Hg, Pb, Ni, Cr, Fe, Cu, Zn, Co and Mn in the single steps of virgin sunflower oil production were studied. It was determined that mercury is cumulated in sunflower kernel and passes into oil. Chromium is concentrated in sunflower hulls and therefore is not passing into oil. Nickel, iron, copper, cobalt, manganese remained in pressed sunflower meal. Only their decreased content was found in oil because mechanical purifying (separation and filtration) minimized their content. We determined the levels of selected trace elements in sunflower virgin oils produced in Slovakia in 1995 and 1996. Methods of atomic absorption spectrometry using graphite furnace and flame were used.

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48

Jākobsone, Ida, Ināra Kantāne, Sanita Zute, Inga Jansone e Vadims Bartkevičs. "Macro-Elements and Trace Elements in Cereal Grains Cultivated in Latvia". Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 69, n. 4 (1 settembre 2015): 152–57. http://dx.doi.org/10.1515/prolas-2015-0022.

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AbstractCereal-based foods have great importance in the compensation of micro- and trace element deficiency, because 50% of the foods produced worldwide are made up of cereal grains. The aim of the research was to determine the concentration of macro-elements and trace elements in different cereals cultivated in Latvia. Various cereals were used in the research: rye (n = 45), barley (n = 54), spring wheat (n = 27), winter wheat (n = 53), triticale (n = 45) and oats (n = 42). Thirteen macro- and trace elements (Cd, Pb, Ni, Cr, Al, Cu, K, Na, Mn, Fe, Zn, Mg, Ca) were determined in cereal grain samples (n = 266). Macro-elements and trace elements varied significantly (p < 0.01 or p < 0.001). The highest concentrations of macro- and trace elements were found in oats and the lowest in rye. The obtained data will expand the opportunity for food and nutrition scientists to evaluate content of the examined elements in grain products, and dietary consumption (bioavailability) of the examined macro-elements and trace elements.

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49

Lorand, Jean-Pierre, e Ambre Luguet. "Chalcophile and Siderophile Elements in Mantle Rocks: Trace Elements Controlled By Trace Minerals". Reviews in Mineralogy and Geochemistry 81, n. 1 (14 dicembre 2015): 441–88. http://dx.doi.org/10.2138/rmg.2016.81.08.

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50

Staaland, Hans. "Trace elements in the alimentary tract of Svalbard reindeer". Rangifer 5, n. 2 (1 maggio 1985): 15. http://dx.doi.org/10.7557/2.5.2.543.

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Abstract (sommario):

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.Sporelementer i fordøyelseskanalen hos Svalbard-rein.Abstract in Norwegian / Sammendrag: Konsentrasjonen av Fe og Co i fordøyelsessystemet hos Svalbard-rein var høyere om vinteren enn om sommeren, mens konsentrasjonene av Mn og Cu var like vinter og sommer. Zn konsentrasjonene var høyest om sommeren gjennom hele fordøyelsessystemet, mens Mo konsentrasjonene var høyest i det distale avsnittet. Det generelle absorbsjonsmønster synes å stemme overens med funn fra andre drøvtyggere. De svært høye nivåer av Fe og Co blir fremhevet.Huippuvuorten peuran ruoansulatuskanavan ilmaisijaelementeistå.Abstract in Finnish / Yhteenveto: Huippuvuorten peuran ruoansulatuskanavassa mitattiin talvella korkeammat Fe- ja Co-pitoisuudet kuin kesalla, kun taas Mn- ja Cu-pitoisuudet olivat samanlaisia kesålla ja talvella. Zn-pitoisuudet olivat korkeimmillaan kesållå koko ruoansulatuskanavassa, kun taas Mo-pitoisuudet olivat korkeimmat kanavan distaaliosassa. Yleinen absorptiomalli nayttaa hyvin sopivan yhteen muilla mårehtijoilla tehtyjen loydosten kanssa. Tutkimuksessa korostetaan raudan ja koboltin erityisen korkeaa tasoa.

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Articoli di riviste sul tema "Trace elements"

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