Effects of ethyl alcohol on development and social behaviour in the offspring of laboratory mice

SummaryThe effects of administration to laboratory mice of 5-20% ethyl alcohol (v:v) as drinking water on megakaryocyte and platelet development were studied and compared with data on controls given tap water.In two separate experiments, mice given 5-15% ethyl alcohol (v:v) for 13 or 11 weeks showed decreases in platelet counts and platelet 35S uptake when compared to the control groups. Mice fed 5-20% alcohol for five weeks showed platelet counts, bone marrow megakaryocyte numbers and diameters that were significantly reduced to 72% (P <0.001), 45% (P <0.001), and 71% (P <0.01), respectively.The data implied that ethyl alcohol ingestion had a direct inhibitory effect on megakaryocyte and platelet development in mice, which resulted in a marked reduction in the levels of circulating platelets.

Download Full-text

Common non infectious skin conditions of laboratory mice and rats

Journal of the Hellenic Veterinary Medical Society ◽

10.12681/jhvms.15693 ◽

2018 ◽

Vol 50 (1) ◽

pp. 11

Author(s):

K. I. GOURTSAS (K.I. ΓΚΟΥΡΤΣΑΣ)

Keyword(s):

Social Behaviour ◽

Laboratory Mice ◽

The Social ◽

The World ◽

Skin Conditions ◽

Bite Wounds

Laboratory mice and rats are the most favourite animals of the researchers all over the world. Sometimes these rodents can show a number of non infectious conditions concerning their hair, skin or legs and tail. These can be alopecia, bite wounds or the shedding of their legs or tail. It is important that ordinarily there is not a pathological cause for these conditions. It is believed that the social behaviour and the enviromental conditions of the animals may play a role. Fortunately, these cases are easily encountered and so, healthy animals are ensured for every reliable research.

Download Full-text

Skill-based engagement with a rich landscape of affordances as an alternative to thinking through other minds

Behavioral and Brain Sciences ◽

10.1017/s0140525x1900284x ◽

2020 ◽

Vol 43 ◽

Author(s):

Julian Kiverstein ◽

Erik Rietveld

Keyword(s):

Social Behaviour ◽

Cultural Learning ◽

Other Minds ◽

Middle Way ◽

Internalist Account

Abstract Veissière and colleagues make a valiant attempt at reconciling an internalist account of implicit cultural learning with an externalist account that understands social behaviour in terms of its environment-involving dynamics. However, unfortunately the author's attempt to forge a middle way between internalism and externalism fails. We argue their failure stems from the overly individualistic understanding of the perception of cultural affordances they propose.

Download Full-text

The butterfly martensite nucleation in an iron and nickel alloy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100177660 ◽

1990 ◽

Vol 48 (4) ◽

pp. 906-907

Author(s):

Q.Z. Chen ◽

X.F. Wu ◽

T. Ko

Keyword(s):

Nickel Alloy ◽

Ethyl Alcohol ◽

Dislocation Structure ◽

Martensite Transformation ◽

Room Temperature ◽

The Matrix

Some butterfly martensite nuclei were observed in an Fe-27.6Ni-0.89V-0.05C alloy. The alloy was austenitized at 1200°C for 1 hour. Some samples were aged at 850° C for 40 minutes and quenched in 10% brine at room temperature. All the samples were cooled in ethyl alcohol for martensite transformation.A nucleus in an unaged specimen is shown in Fig.1. The nucleus has certain contrast different from the matrix and is shaped like one wing of a butter fly martensite. The SADP of the circled region is measured to be: da=dh, and approximate to dγ(111) and dm(110) with ∠AOB = 55° . It is similar to [011]f.c.c and b patterns in the anglez ∠AOB and the ratio ra/rb, respectively. The SADP shows that the structure of the nucleus is between f.c.c and b.c.c. The dislocation structure within the nucleus is shown in Fig.2. Their Burgers vectors and line directions are also given in it. There are many long dislocations near it without dislocations piled up as shown in Fig.3.Long dislocations are closed at one end as an envelope.

Download Full-text