Variable viscosity condition in the modeling of a slider bearing

To reduce tear and wear of machinery lubrication is essential. Lubricants form a layer between two surfaces preventing direct contact and reduce friction between moving parts and hence reduce wear. In this short letter the lubrication of two slider bearings with parallel and nonparallel is studied. First, we show that bearings with parallel plates cannot support any load. For bearings with nonparallel plates we are interested on how constant and temperature dependent viscosity affects the properties of the bearings. Also, a critical temperature for which the bearings would fail due to excess in temperature is found for both latter cases. If the viscosity is constant, the critical temperature is given by an explicit formula, while for the non-constant viscosity the critical temperature can be always found from a closed form formula involving Weber functionsComment: 8 pages, 3 figure

Presenting the Absence: A Contrapuntal Reading of the Māita in Nepali Tīj Songs

Much before the arrival of Western feminism in Nepal with its vocabulary of protest and polemics, the discourse of right and fight, Nepali women have had a long complex and ambivalent genealogy of protest in the genre of Tīj songs. However, such discourses have been rendered invisible by the dominant epistemology that derives its ideological sustenance from the Eurocentric and Enlightenment paradigm of knowledge production. The collusion of native patriarchy with the dominant epistemological system can be located in the absence of any systematic engagement with the Tīj songs in the indigenous academia. Through Nepali women’s complex and highly nuanced conceptualization of the māita (the parental home) and the ghar (the house where women get married into), the paper seeks to show how Nepali women problematize not only the Western construction of the silenced native subaltern, but also the erasure of Nepali women’s voice in the construction of ‘knowledge’ by the native patriarchy

What does Nepal's recent elections reveal about patriarchy in politics?

As Nepal successfully conducted historic local and parliamentary elections in 2017, considered as the end to the decade-long transition period, there are high hopes of improved democratic governance in the new, decentralised federal set up. Sudeep Uprety notes that it is a matter of serious concern for women as only a small number of female candidates won the direct elections

Investigating Bell Inequalities for Multidimensional Relevance Judgments in Information Retrieval

Relevance judgment in Information Retrieval is influenced by multiple factors. These include not only the topicality of the documents but also other user oriented factors like trust, user interest, etc. Recent works have identified and classified these various factors into seven dimensions of relevance. In a previous work, these relevance dimensions were quantified and user's cognitive state with respect to a document was represented as a state vector in a Hilbert Space, with each relevance dimension representing a basis. It was observed that relevance dimensions are incompatible in some documents, when making a judgment. Incompatibility being a fundamental feature of Quantum Theory, this motivated us to test the Quantum nature of relevance judgments using Bell type inequalities. However, none of the Bell-type inequalities tested have shown any violation. We discuss our methodology to construct incompatible basis for documents from real world query log data, the experiments to test Bell inequalities on this dataset and possible reasons for the lack of violation

Do numbers tell the real story of gender based violence in Nepal?

A recent online survey carried out by Code for Nepal, with over thousand female respondents, presented a staggering figure: 98% women said they have experienced some form of harassment on streets. This clearly indicates an alarming situation of Gender Based Violence (GBV) in Nepal writes Sudeep Uprety

Eaf1p Is Required for Recruitment of NuA4 in Targeting TFIID to the Promoters of the Ribosomal Protein Genes for Transcriptional Initiation In Vivo.

NuA4 (nucleosome acetyltransferase of H4) promotes transcriptional initiation of TFIID (a complex of TBP and TBP-associated factors [TAFs])-dependent ribosomal protein genes involved in ribosome biogenesis. However, it is not clearly understood how NuA4 regulates the transcription of ribosomal protein genes. Here, we show that NuA4 is recruited to the promoters of ribosomal protein genes, such as RPS5, RPL2B, and RPS11B, for TFIID recruitment to initiate transcription, and the recruitment of NuA4 to these promoters is impaired in the absence of its Eaf1p component. Intriguingly, impaired NuA4 recruitment in a Δeaf1 strain depletes recruitment of TFIID (a TAF-dependent form of TBP) but not the TAF-independent form of TBP to the promoters of ribosomal protein genes. However, in the absence of NuA4, SAGA (Spt-Ada-Gcn5-acetyltransferase) is involved in targeting the TAF-independent form of TBP to the promoters of ribosomal protein genes for transcriptional initiation. Thus, NuA4 plays an important role in targeting TFIID to the promoters of ribosomal protein genes for transcriptional initiation in vivo. Such a function is mediated via its targeted histone acetyltransferase activity. In the absence of NuA4, ribosomal protein genes lose TFIID dependency and become SAGA dependent for transcriptional initiation. Collectively, these results provide significant insights into the regulation of ribosomal protein gene expression and, hence, ribosome biogenesis and functions