NICHE SHIFTS, HYBRIDIZATION, POLYPLOIDY AND GEOGRAPHIC PARTHENOGENESIS IN WESTERN NORTH AMERICAN HAWTHORNS (CRATAEGUS SUBG. SANGUINEAE, ROSACEAE)

Niche Shifts, Hybridization, Polyploidy and Geographic Parthenogenesis in Western North American Hawthorns (Crataegus subg. Sanguineae, Rosaceae)

We compare biogeographic and morphological parameters of two agamic complexes of western North American hawthorns so as to evaluate possible explanations of the differences in range between sexually reproducing taxa and their apomictic sister taxa.We have documented range, breeding system, morphology, leaf vascular architecture, and niche breadth i

read more

Comparison between phenotypic and PCR for detection of OXA-23 type and metallo-beta-lactamases producer Acinetobacter spp.

[english] Background: Resistance to carbapenems is developing around the world and can cause many problems for treatment of patients.Production of metallo-beta-lactamase (MBL) is one of the main mechanism for this type of resistance.So, detection of MBL-producer microorganisms can prevent the spread of this type of resistance.Materials and methods:

read more

Enhanced attractive force via torsion spring as rotatable tip structure in beam-structure electrostatic chucks

This research aims to replace ball joints of beam-structure electrostatic chucks (BSESC), which are limited BOSCH Serie 8 BIC630NB1B Warming Drawer - Black by issues such as structural friction and inconsistent operation, thus enhancing the applicability in industrial settings.Torsion springs are used as rotational degree-of-freedom (RDOF) mechanis

read more

SCIENCE AS A SUBJECT OF LEARNING IN ISLAMIC UNIVERSITY

This paper aims to searching theological impact when applied a science as a Blowers subject of learning at Agrotechnology Department in the Faculty of Sciences and Technology of State Islamic University of Bandung.The atmospheric experiment was implemented as a subject of learning.By observing the atmospheric data recorded, the plant growth measure

read more