Experimental studies on the deposition to crops of radioactive gases released from gas-cooled reactors —II. Hydrogen sulphide-35

1997 ◽  
Vol 34 (3) ◽  
pp. 237-251 ◽  
Author(s):  
C.D. Collins ◽  
J.N.B. Bell
Keyword(s):  
Hydrogen Sulphide ◽  
Experimental Studies ◽  
Radioactive Gases

scholarly journals THE RESULTS OF EXPERIMENTAL INVESTIGATION RECYCLING MEAT AND PLANT WASTE IN THE PERIODIC OPERATION BIOREACTOR / EKSPERIMENTINIŲ TYRIMŲ REZULTATAI PERDIRBANT MĖSOS IR AUGALINĖS KILMĖS ATLIEKAS PERIODINIO VEIKIMO BIOREAKTORIUJE

2011 ◽  
Vol 3 (5) ◽  
pp. 50-57
Author(s):  
Antonas Misevičius ◽  
Pranas Baltrėnas
Keyword(s):  
Experimental Investigation ◽  
Hydrogen Sulphide ◽  
Experimental Studies ◽  
Modern World ◽  
Herbal Supplements ◽  
Average Amount ◽  
Periodic Operation ◽  
Plant Waste ◽  
Waste Mixture ◽  
Mesophilic Conditions

Waste is unwanted materials that are mainly the result of human activities and one of the sources of environmental pollution. An increase in the world’s population causes a growth in the amounts of waste in the modern world. Every year, the increasing quantities of waste are the major problems these days; therefore, calls for taking effective measures to tackle this problem could be effective tools. The article presents the results of experimental studies on using meat waste and their mixes with herbal waste. The conducted experiments observed the concentrations of methane, hydrogen sulphide and oxygen under periodic mesophilic conditions in the bioreactor. Research has shown that the use of herbal supplements with meat waste produces better results than using only meat waste. The digestion of meat wastes points to an average amount of biogas which is 0.5 m3/m3d, that of meat and herbal waste mixture (19:1) – 0.51 m3/m3d, meat and herbal waste mixture (9:1) – 0.56 m3/m3d. The content of biogas methane was 0.074 m3/m3d, 0.083 m3/m3d, 0.101 m3/m3d respectively. Santrauka Atliekos – nepageidaujamos medžiagos, kurios dažniausiai susidaro dėl žmogaus veiklos. Jos yra vienos iš aplinkos teršimo šaltinių. Šiuolaikiniame pasaulyje, didėjant žmonių skaičiui, daugiau susidaro ir atliekų. Kasmet didėjantys atliekų kiekiai yra viena iš svarbiausių šių dienų problemų, todėl jai spręsti reikia imtis efektyvių priemonių. Straipsnyje pateikiami eksperimentinių tyrimų su mėsos atliekomis ir jos mišiniais su žolinėmis atliekomis rezultatai. Eksperimentų metu stebėtos metano, sieros vandenilio ir deguonies koncentracijos, kai periodinio veikimo bioreaktorius veikė mezofiliniu režimu. Tyrimų metu nustatyta, kad naudojant žolines atliekas kaip papildą su mėsos atliekomis gaunami geresni rezultatai, nei vien tik perdirbant mėsos atliekas. Skaidant mėsos atliekas vidutinis biodujų kiekis siekė 0,5 m3/m3d, mėsos atliekų ir žolinių atliekų mišinį (19:1) – 0,51 m3/m3d, mėsos atliekų ir žolinių atliekų mišinį (9:1) – 0,56 m3/m3d. Metano kiekis biodujose siekė atitinkamai 0,074 m3/m3d, 0,083 m3/m3d, 0,101 m3/m3d.

3-D reconstruction and analysis of mammalian mitotic spindle structure

1992 ◽  
Vol 50 (1) ◽  
pp. 578-579
Author(s):  
Kent McDonald ◽  
David Mastronarde ◽  
Rubai Ding ◽  
Eileen O'Toole ◽  
J. Richard McIntosh
Keyword(s):  
Cross Sections ◽  
Mitotic Spindle ◽  
Experimental Studies ◽  
Video Camera ◽  
Three Dimensions ◽  
Mitotic Spindles ◽  
Black And White ◽  
Reconstruction Methods ◽  
Spindle Structure ◽  
Tissue Culture Line

Mammalian spindles are generally large and may contain over a thousand microtubules (MTs). For this reason they are difficult to reconstruct in three dimensions and many researchers have chosen to study the smaller and simpler spindles of lower eukaryotes. Nevertheless, the mammalian spindle is used for many experimental studies and it would be useful to know its detailed structure.We have been using serial cross sections and computer reconstruction methods to analyze MT distributions in mitotic spindles of PtK cells, a mammalian tissue culture line. Images from EM negatives are digtized on a light box by a Dage MTI video camera containing a black and white Saticon tube. The signal is digitized by a Parallax 1280 graphics device in a MicroVax III computer. Microtubules are digitized at a magnification such that each is 10-12 pixels in diameter.

Effects of Attachment Styles on the Experience of Equity in Heterosexual Couples Relationships

2003 ◽  
Vol 50 (4) ◽  
pp. 298-310 ◽  
Author(s):  
Ina Grau ◽  
Jörg Doll
Keyword(s):  
Attachment Theory ◽  
Attachment Style ◽  
Intimate Relationships ◽  
Attachment Styles ◽  
Experimental Studies ◽  
The Other ◽  
Heterosexual Couples ◽  
Secure Attachment ◽  
Dependent Variables ◽  
Equity Ratio

Abstract. Employing one correlational and two experimental studies, this paper examines the influence of attachment styles (secure, anxious, avoidant) on a person’s experience of equity in intimate relationships. While one experimental study employed a priming technique to stimulate the different attachment styles, the other involved vignettes describing fictitious characters with typical attachment styles. As the specific hypotheses about the single equity components have been developed on the basis of the attachment theory, the equity ratio itself and the four equity components (own outcome, own input, partner’s outcome, partner’s input) are analyzed as dependent variables. While partners with a secure attachment style tend to describe their relationship as equitable (i.e., they give and take extensively), partners who feel anxious about their relationship generally see themselves as being in an inequitable, disadvantaged position (i.e., they receive little from their partner). The hypothesis that avoidant partners would feel advantaged as they were less committed was only supported by the correlational study. Against expectations, the results of both experiments indicate that avoidant partners generally see themselves (or see avoidant vignettes) as being treated equitably, but that there is less emotional exchange than is the case with secure partners. Avoidant partners give and take less than secure ones.

Sign in / Sign up

Export Citation Format

Share Document