Vorzugstemperatur und Vorzugsluftfeuchtigkeit der beiden Schabenarten Periplaneta Americana und Blaberus trapezoideus (Insecta: Blattaria)

Zusammenfassung Von adulten M?nnchen der beiden SchabenartenPeriplaneta americana undBlaberus trapezoideus wurden gleichzeitig Vorzugstemperatur und Vorzugsluftfeuchtigkeit ermittelt. Für beide Arten konnten in ihren Vorzugstemperaturen gewisse Akklimatisationserscheinungen festgestellt werden. BeiP. americana steigt die Vorzugstemperatur von 26°–29° nach einem einmonatigen Aufenthalt bei 20° auf etwa 29°–30° nach einerer Exposition bei 35° an.B. trapezoideus hat eine um etwa 3° niedrigere Vorzugstemperatur. Nach einem Aufenthalt bei 20° betr?gt sie etwa 23°–26°. Sie steigt auf etwa 26° nach einer Exposition bei 32° an.P. americana bevorzugt stets ein trockenes Milieu (geboten wurden 18% r.L.),B. trapezoideus such h?here Luftfeuchtigkeit auf (45%–93% r.L.) und meidet trockenes Milieu. Ein Gewichtsverlust von 15%–18% veranla?tP. americana eine um 1°–3° niedrigere Vorzugstemperatur, aber vor allem eine sehr hohe Luftfeuchte aufzusuchen. Ein Gewichtsverlust von 20%–25% des K?rpergewichtes hat keinen Einflu? auf die Vorzugstemperatur vonB. trapezoideus; jedoch halten sich die Tiere nur ebenfalls l?nger in sehr hoher Luftfeuchte auf.

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Summary The combined temperature and humidity preferences were investigated in adult males ofPeriplaneta americana andBlaberus trapezoideus. Both species show an acclimatization effect. After spending one acclimatization at 20°B. trapezoideus preferred 23°–26°, after spending one month at 32° the preference was about 26°.P. americana prefers the lowest available humidity (18%).B. trapezoideus avoids dry air and is equally distributed in the steps provided of 45%–93% r.h. After desiccation to 15%–18% of the total body weight,P. americana prefers a temperature 1°–3° lower than that before desiccation, but in this case most of all it prefers a very high humidity. Desiccation has no influence on the temperature preference ofB. trapezoideus, but the animal spends more time in very high humidities.

     

Gc subtypes: demonstration using isoelectric focusing. Study of population and formal genetics

Gc-subtypes were determined by isoelectric focusing and immunfixation on samples from 492 unrelated blood donors from Berlin. The frequency of the three genes was found to be GcIF = 0.1270, GcIS = 0.6006, Gc2 = 0.2724. Analysis of 78 parents with 190 children did not show deviations from the expected mode of inheritance. Investigation of the adults from paternity cases and of their children on the other hand obtained similar results. No rare alleles were observed.     

Local complexity and central bureaucracy in Finnish health care planning

The 1972 Primary Health Care Act in Finland has generally been considered very successful. In many respects this may be true. From an administrative point of view, however, this act has not worked satisfactorily. Data are given on the bureaucratic inertia introduced by the new planning system mandated by the act, and some general criticism is offered of the claims of success made by public health officials.     

Why Are they Silent?

A frustrating feature in the Chinese higher educational landscape is the ubiquitous and appalling lack of student responsiveness in the classroom. Most of the explanations that have been provided for the causes of the unilateralism in the classroom discourse of Chinese higher education have placed under scrutiny various factors, from personal traits of students, such as shyness, to Confucianism. All these explanations attribute this unilateralism to, if not blame it on, the same external factor: the cultural specificity of Chinese college student. Whereas it is right to narrow the search for the causes down to the domain of culture, it does not really make much sense to simply single out parts of the Chinese culture for explanations. Instead of dwelling on specific components of the Chinese culture, the present article proposes drawing the attention to a certain functional mechanism within the culture: self-construal, which is also manifested in other cultures. It argues that the students’ minimum discourse performance in Chinese university classrooms can be understood as a result of their semi-conscious act of internal modeling, which entails confirming and reinforcing their identities based on evaluations of the situation and conforming to certain social norms that are prevalent in school. The self-construal in Chinese university classrooms perfectly reflects a kind of power imbalance between the teacher and students, which has a profound shaping force upon the students in their modeling of self-identity in regard to that of the teacher and is not conducive to students’ overall development, as it inhibits critical thinking and real academic innovation.     

When doctors shape policy: The impact of self‐regulation on governing human biotechnology

This paper investigates the development and adoption of governance modes in the field of human biotechnology. As the field of human biotechnology is relatively new, voluntary professional self‐regulation constituted the initial governing mode. In the meantime, with the exception of Ireland, all Western European countries have moved toward greater state intervention. Nevertheless, they have done so in contrasting ways and the resulting governance modes for assisted reproductive technology and embryonic stem‐cell research vary greatly. Instead of imposing their steering capacity in a “top‐down” fashion, governments have taken pre‐existing self‐regulatory arrangements in the field into account and built up governance mechanisms in conjunction with private actors and pre‐existing modes of private governance. Our analysis demonstrates that the form and content of the initial self‐regulation explain why the self‐steering capacity of the medical profession was largely or at least partially preserved through hybrid governance systems in Britain and Germany, while in France the self‐regulation was entirely replaced by governmental intervention.     

Shifting Logics: The Discourses of Turkish Political Elites on EU Accession

Abstract

The article compares the EU accession discourses, during the 2002, 2007 and 2011 elections, of Turkey’s governing Justice and Development Party (AKP) with those of the two main opposition parties, the Republican People’s Party (CHP) and the Nationalist Action Party (MHP), tracking the continuities and shifts in their discourses. In the light of Habermas’s distinction between pragmatic, ethical and moral justifications, the discourses are analysed on the basis of three explanatory logics – interests, rights and identity – by means of a theoretically guided qualitative content analysis of the election manifestos of these three political parties. These logics, emerging and shifting in line with periodical dynamics, have been instrumental to varying degrees in the discourses of Turkey’s political elites.     

Can I stay a BIT longer? The effect of bilateral investment treaties on political survival

Bilateral Investment Treaties (BITs) have proliferated throughout the international system. While ostensibly commercial in purpose, do BITs have domestic political ramifications? I argue that BITs affect a leader’s tenure through their effect on the property rights environment in developing countries. BITs, by segmenting a country’s property rights environment for foreign and domestic firms, reduce the incentive for foreign firms to lobby for property rights protections in the host country thus leading to a stagnating domestic property rights environment. In autocracies, a stagnating domestic property rights regime benefits domestic business elites who can continue to stymie small and medium enterprises (SMEs). The political benefits of BITs, however, decrease as a country becomes more democratic. Using a dataset of developing country leaders over the period 1965-2011, I find support for my hypothesis that BITs are associated with a decreased hazard of losing office and that the effect diminishes with higher levels of democracy. My results highlight the consequences of the legalization of global investment on the domestic political economy.