Hemisphere-like

The other possible form for hn is that Hn decreases with increasing N tending to a finite limit as A oo. This form will be seen later to arise from contributions to fis from end effects, e.g., hemispherical-like ends on rod-shaped micelles, and hemicylindrical-like ends at the extremities of planar aggregates. 

Egg-shaped or spherical capsules can be formed by the assembly of two halves or hemispheres. Like then-covalent carcerand and hemicarcerand counterparts, self-assembled capsules are of interest for drug delivery and as containers for stabilizing reactive intermediates and for inducing selectivity in reactions. Capsules have been... 

Yu, C.L., Zhou, W.Q., Yang, K. Rong, G. Hydrothermal synthesis of hemisphere-like F-doped anatase Ti02 with visible light photocatalytic activity. J. Mater. Set. 45 21 (2010), pp. 5756-5761. 

The fruits of the Tasmanian tree are practically identical in shape with those of Eucalyptus dwes Sch., and not hemispherical like those of the mainland Eucalyptus amygdalma. 

Flard spherocylinders (cylinders witli hemispherical end caps) were studied using computer simulations [118]. In addition to a nematic phase, such particles also display a smectic-A phase, in which tire particles are arranged in liquid-like layers. To observe tliis transition, ratlier monodisperse particles are needed. The smectic-A phase was indeed observed in suspensions of TMV particles [17]. 

Pitting had two distinct causes. Sulfate reducers had formed the large hemispherical pits. The more undercut pits were formed during a low-pH excursion involving mineral acid after the sulfate-reducing bacteria became inactive. It is likely the low-pH excursion deepened preexisting sulfate-reducer pits, causing final perforation. 

Regarding a historical perspective on carbon nanotubes, very small diameter (less than 10 nm) carbon filaments were observed in the 1970 s through synthesis of vapor grown carbon fibers prepared by the decomposition of benzene at 1100°C in the presence of Fe catalyst particles of 10 nm diameter [11, 12]. However, no detailed systematic studies of such very thin filaments were reported in these early years, and it was not until lijima s observation of carbon nanotubes by high resolution transmission electron microscopy (HRTEM) that the carbon nanotube field was seriously launched. A direct stimulus to the systematic study of carbon filaments of very small diameters came from the discovery of fullerenes by Kroto, Smalley, and coworkers [1], The realization that the terminations of the carbon nanotubes were fullerene-like caps or hemispheres explained why the smallest diameter carbon nanotube observed would be the same as the diameter of the Ceo molecule, though theoretical predictions suggest that nanotubes arc more stable than fullerenes of the same radius [13]. The lijima observation heralded the entry of many scientists into the field of carbon nanotubes, stimulated especially by the un-... 

The blast originating from a hemispherical fuel-air charge is more like a gas explosion blast in wave amplitude, shape, and duration. Unlike TNT blast, blast effects from gas explosions are not determined by a charge weight or size only. In addition, an initial blast strength of the blast must be specified. The initial strength of a gas-explosion blast is variable and depends on intensity of the combustion process in the gas explosion in question. 

Many clinicians are concerned about the use of DC for dominant hemisphere strokes, but Kastrau et al. found in a retrospective review of 14 dominant hemisphere stroke patients with aphasia that significant improvement (13/14 patients) was achieved in these preselected younger patients who underwent early poststroke DC. In contrast, a retrospective study by Foerch et al. found that older patients fared quite poorly in terms of functional outcome and quality of life, especially in those with severe neurological deficit at admission. These results were replicated by Curry et al., who also found that younger patients also were more likely to require reoperations for continued herniation. Uhl et al. ° found no prognostic value to the side of infarction in their analysis of 188 patients who underwent DC for massive hemispheric infarction. 

ANSWER We used it in the 20 mg/kg twice a day for a 4-day regimen with MDMA, and then corrected for molecular weight and used an equimolar dose of MBDB, sacrificed the animals 2 weeks later, and then measured. We used basically HPLC and used serotonin and 5-HIAA from one hemisphere and then measured tritiated pyroxetine from the other hemisphere. And we got something like 60 percent depletion of serotonin, and the pyroxetine binding site decreased by about 60 percent. With MBDB it was decreased by about 40 percent. It was a clear and significant decrease, but not quite to the extent that we had. But we have not looked at tryptophan hydroxylase. 

Brain metastasis is the most common neurologic complication seen in patients with cancer. Approximately 170,000 patients develop brain metastases in the United States each year.20 Many malignancies are frequently associated with brain metastases (Table 96-7). While melanoma is the tumor type most likely to metastasize to the brain, brain metastases owing to lung and breast cancers are seen more often because they are among the most common cancers. In addition, brain metastasis may be diagnosed at the same time as the primary malignancy in around 20% of cases.22 Around 80% of brain metastases occur in the cerebral hemispheres, 15% in the cerebellum, and 5% in the brain stem. 

The behavior of a rotating sphere or hemisphere in an otherwise undisturbed fluid is like a centrifugal fan. It causes an inflow of the fluid along the axis of rotation toward the spherical surface as shown in Fig. 1(a). Near the surface, the fluid flows in a spirallike motion towards the equator as shown in Fig. 1(b) and (c). On a rotating sphere, two identical flow streams develop on the opposite hemispheres. The two streams interact with each other at the equator, where they form a thin swirling jet toward the bulk fluid. The Reynolds number for the rotating sphere or hemisphere is defined as ... 

Textbooks on neuroscience often describe the location and function of hundreds of individual brain regions (see references above). However, for current purposes these will be kept to a minimum (Figure 2.1). Anatomically, the brain can be subdivided into the forebrain containing the telencephalon and diencephalon, the midbrain or mesencephalon and the hindbrain (metencephalon and myelencephalon). The telencephalon includes the left and right cerebral hemispheres encompassed by the cerebral cortex (neocortex). Cortex is a translation of the word bark and is so-called because its surface, made up of numerous sulci (grooves or invaginations) and gyri (raised areas), is on the outer surface of the brain like the bark of a tree. Each hemisphere is divided into four lobes, named from the front (rostral) to back (caudal) of the brain frontal, temporal, parietal and occipital. 

Studies show that the Zr-bearing bulky ligand is exclusively located in the bottom hemisphere with respect to the plane of the (Z)-enolate. The aldehyde molecule coordinates with the Zr atom and approaches from the same side, adopting a chair-like transition state. This leads to the formation of erythro-aldols (Scheme 3-9 and 23). For lithium enolate, the attack of alkyl or acyl halides in alkylation or acylation occurs directly on the top face of the enolate. 

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