The structure of the nuclear and cytoplasmic membranes of Trichonympha, a complex flagellate, has been studied in the electron microscope. The nuclear membrane consists of two 70 A membranes, penetrated by numerous pores. Small (100 A) granules occur on the outer surface, around the rims of the pores. Granule-bearing membranes, only 30 to 40 A thick, form long, ribbon-shaped sacs, with 100 A gr...

In referring to various methods for genomic DNA extraction from different tissues, we modified the classical phenol-chloroform procedure and reaction system for use in genomic DNA extraction from pig hair sacs. With the modified the phenol-chloroform method we successfully obtained high quality genomic DNA from pig hair sacs. Genomic DNA can be extracted from sacs of one to six pig hairs with s...

Many digital databases housed on the web today are organized in ways that are problematic for systems researchers, primarily because they are prearranged for conventional, reductionistic, linear, statistically-aggregated research. To make use of such data, systems researchers need an intermediary, e-scientific framework that can translate their digital data into a “systems-oriented” format, so ...

sacs,' which are main cavities of which the walls are constituted by alveoli or air-cells. By far the greater number of the lung alveoli belong to the air-sac system, but a very appreciable number belong to the atria, and the latter act partly as air-passages to the air-sacs, and partly perform the same respiratory functions as the air-sacs themselves. The walls of the atria have the same gener...

As institutions in the Southeastern section prepare for reaffirmation of accreditation by the Southern Association of Colleges and Schools (SACS), fundamental changes have been implemented that have a significant impact on the institution and academic programs. One of the major additions is SACS core requirement 2.12 that requires an institution to prepare a Quality Enhancement Plan (QEP). The ...

Single atom catalysts (SACs) are highly desirable for the effort to maximize the efficiency of metal atom use. However, the synthesis of SACs is a major challenge that largely depends on finding an appropriate supporting substrate to achieve a well-defined and highly dispersed single atom. This work demonstrates that, based on the density functional theory (DFT) calculation, graphyne is a good ...

Human embryonic stem cells (hESCs) could potentially represent an alternative source for blood transfusion therapies and a promising tool for studying the ontogeny of hematopoiesis. When we cultured hESCs on either C3H10T1/2 or OP-9 cells to facilitate hematopoiesis, we found that exogenous administration of vascular endothelial growth factor promoted the emergence of sac-like structures, which...