Each of the heads of the motor protein myosin II is capable of supporting motion. A previous report showed that double-headed myosin generates twice the displacement of single-headed myosin (Tyska, M.J., D.E. Dupuis, W.H. Guilford, J.B. Patlak, G.S. Waller, K.M. Trybus, D.M. Warshaw, and S. Lowey. 1999. Proc. Natl. Acad. Sci. USA. 96:4402-4407). To determine the role of the second head, we expr...

Introduction: The tricuspid valve is a heterogeneous structure with great variability in its structure and has remained unexamined despite intense interest in cardioanatomy. The tricuspid valve complex is of great clinical importance in the light of progress in cardiosurgery and the development of novel operating techniques. Materials and methods: The present work was done by dissecting 42 form...

1.1 Background Since Steven Abney's 1987 MIT dissertation, The English Noun Phrase in Its Sentential Aspect, the socalled DP Hypothesis has gained acceptance in the eld of Government and Binding (GB) syntax. This hypothesis proposes that a nominal expression is headed by a determiner that takes a noun phrase as its complement. The preexisting NP Hypothesis, on the other hand, diagrams nominal e...

One direct way in which agricultural input subsidies can provide social protection to the poor is by targeting the poor with very high subsidies to ensure that they are able to access inputs. Although the Malawi Agricultural Input Subsidy Programme (MAISP) generally targets resource-poor households, the targeting guidelines also accord special consideration to vulnerable groups such as child-he...

We thank the editors of Regeneration for the opportunity to respond to the letter by Sluys and Stocchino (2017) (S&S), who take issue with our report of observations (Morokuma, Durant, & Williams, 2017) on planaria that spent several weeks aboard the International Space Station (ISS), in comparison with controls that stayed (similarly sealed) on Earth. First, we give a brief review of what we d...

nowadays, the female participation rate is known as one of the reasons of societies' development. hence, this study explores some of the effective factors such as education, marital status, age, and female-headed households on female participation probability in labor market. to achieve this goal, by using micro data of household survey in 2011, which is carried out by the statistical cent...

Abstract Hosts can manage parasitic infections using an array of tactics, which are likely to vary contingent on coevolutionary history between the host and the parasite. Here we asked whether coping ability of congeners that differ in host-parasite coevolutionary history differed in response to experimental infections with a coccidian parasite. House sparrows (Passer domesticus) and gray-heade...

During angiosperm evolution, innovations in vegetative and reproductive organs have resulted in tremendous morphological diversity, which has played a crucial role in the ecological success of flowering plants. Morindeae (Rubiaceae) display considerable diversity in growth form, inflorescence architecture, flower size, and fruit type. Lianescent habit, head inflorescence, small flower, and mult...

Under multi-headed dependency grammar, a parse is a connected DAG rather than a tree. Such formalisms can be more syntactically and semantically expressive. However, it is hard to train, test, or improve multi-headed parsers because few multi-headed corpora exist, particularly for the projective or planar case. To help fill this gap, we observe that link grammar already produces undirected plan...

The presence of close to 100% large-headed multi-tailed spermatozoa in the ejaculate has been described as a rare phenotype of male infertility with a very poor prognosis. We demonstrated previously that most cases were caused by a homozygous mutation (c.144delC) in the Aurora Kinase C gene (AURKC) leading to the absence or the production of a non-functional protein. AURKC deficiency in these p...