Research Roundup Research Roundup for example, two nearby cells can somehow tell which one is closer to the equator (middle) of the eye, and specify the R3 (equatorial) and R4 (polar) fates, accordingly. " This is one of the great puzzles of PCP, " says Simon. " The cells are reading the gradient rather than the absolute values, and sensing the smallest differences. " For that process to have a...

Aim The flora of northern Mesoamerica conventionally has been thought to be derived from taxa that emigrated from South America, but this view has recently been challenged as too simple. The dominance of limestone substrata in much of northern Mesoamerica, and its rarity in the rest of the continental Neotropics, may be one cause of the complexity of northern Mesoamerican floristics. Furthermor...

Walkway floors have a significant effect on cattle locomotion and claw health, as well as on animal behaviour and general cattle house hygiene; and affected both animals’ welfare and dairy farmers’ profit. There are several qualities floors should fulfil, which contemporary walkway floors do not completely do. From an animal point of view, the most favourable of present passageway floorings in ...

OBJECTIVE To determine the effectiveness of using sticky traps and the NS1 dengue antigen kit for the surveillance of Aedes mosquitoes for dengue control. METHODS Apartments were selected in a dengue-endemic area, and sticky traps were set to capture adult Aedes mosquitoes. NS1 dengue antigen kit was used to detect dengue antigen in mosquitoes, and positive mosquitoes were serotyped using rea...

BACKGROUND An adequate dance floor is said to prevent injuries. On the basis of scientific research, numerous recommendations regarding an adequate dance floor have been developed. Up to the present, however, studies have still been lacking into how far these recommendations have already been implemented in theatres with regular dance productions and/or in-house dance ensembles. The aim of this...

or perhaps a decade, Suc1 was the hardy little protein that featured in almost every cell cycle paper. But it was used only as a reagent—its binding to cyclindependent kinases (such as Cdc2 or Cdc28) yielded nearly pure MPF. Then the budding yeast version, called Cks1, was found to be essential for growth. Now, May Morris, Steven Reed, and colleagues (The Scripps Research Institute, La Jolla, C...

Fingers lay fibers n page 553, Canty et al. show how cells use finger-like projections to lay down parallel arrays of collagen fibers that are many times the lengths of the cells. Parallel arrays of long collagen fibers give tendons their resistance and tensile properties. Thousands of collagen molecules self-assemble into fibers, but the fibers need instruction from their environment for align...

Developing an autonomous intelligent vacuuming robot for household floors is not an easy task. The function of an autonomous vacuuming robot can be simply stated as to autonomously vacuum household floors while interacting appropriately with things one normally expects to find on floor such as furnitures, pets, trash, etc. However, underlying this simple job description are its numerous tough j...

This paper evaluates competing sets of microfoundations on firms’ price-setting behaviour widely used in monetary economics. The contribution of this project is twofold. The first contribution is to use as inflation driver a relevant measure of marginal cost from wage microdata. To that end, I calculate the User Cost of Labor as in Basu and House (2016) for the first time in a different dataset...

Despite regular disinfection and decontamination of the hospital floors and surfaces, resistant pathogens from the hospital surfaces and their transmission to humans have been reported recently. The resistance of pathogens to the disinfectant agents or failed disinfection techniques have put the routine floor and non-critical surface disinfection done in hospitals into question with regard to t...