The Haemolysis of Human Erythrocytes in Relation to the Lattice Structure of Water

1. An investigation has been made of the haemolysis of human erythrocytes in hypotonic solutions of malonamide and other organic substances. 2. It has been found that the Arrhenius equation adequately describes the effect of temperature on all the haemolytic systems Investigated. 3. Electrolytes do not inhibit malonamide haemolysis to the same degree,when present in osmotically equivalent concentrations. 4. Non-penetrating non-electrolytes do not inhibit malonamide haemolysis to the same degree,when present in osmotically equivalent concentrations. 5. Interpretation of the terms of the Arrhenius equation with respect to the haemolytic process, the effects of electrolytes and the effects of non-electrolytes, have led to the conclusion that the lattice structure of water is of prime importance in haemolysis. 6. The inhibition due to ions depends on their size and the magnitude of the electrostatic effect which they exert on the water lattice. 7. The inhibition due to non-penetrating non electrolytes depends on their great strengthening action on the water lattice. 8. Of the organic substances investigated, those that penetrate slowly are likely to strengthen the water lattice, while those that penetrate rapidly are unlikely to strengthen the water lattice

Magnetic x-ray scattering study of GdCo2Ge2 and NdCo2Ge2

In order to determine the interactions responsible for magnetic ordering in RCo2Ge2 compounds, where R is a rare earth element, it is necessary to obtain an accurate measurement of the wave vector and orientation of the moments. Resonant and nonresonant x-ray scattering experiments were performed in order to determine the magnetic structure of single crystal compounds of GdCo2Ge2 and NdC02Ge2. Both compounds order antiferromagnetically with a wave vector along the c-direction. GdCo2Ge2 orders in an incommensurate state characterized by a propagation wave vector [Tau] = (0 0 [Tau subscript z]). The value of [Tau subscript z] is temperature dependent and approaches 0.932(±0.002) r.l.u. below T[Subscript N]= 32.9 K. A peak corresponding to 3[Tau subscript z] was also observed at T= 6K. By comparison with theoretical cross sections, a Q dependent measurement indicates that the moments are aligned perpendicular to the c-axis. Susceptibility measurements on NdCo2Ge2 indicate that two transitions may occur at low temperature. An incommensurate structure was found with a wave vector (0 0 [Tau subscript z]) and [Tau subscript z]= 0.7420(±0.0003) r.l.u. An extensive search was carried out for a second transition, but no second phase was detected

Ursinus College Bulletin Vol. 16, No. 16, May 15, 1900

A digitized copy of the May 15, 1900 Ursinus College Bulletin.https://digitalcommons.ursinus.edu/ucbulletin/1178/thumbnail.jp

Playing the odds in clinical decision making: lessons from berry aneurysms undetected by magnetic resonance angiography

No description supplie

Physical-Continuum Limit of the Nucleon Gluon Parton Distribution from Lattice QCD

We present the key results from the first study of the $x$-dependent nucleon gluon distribution from lattice QCD extrapolated to the physical-continuum limit. We use ensembles with $2+1+1$ flavors of highly improved staggered quarks (HISQ) generated by the MILC Collaboration with clover fermions for the valence action on three different lattice spacings and three different pion masses. We took up to $O(10^6)$ measurements of two-point correlators, obtaining good signal at boost momenta up to 3~GeV. We extrapolated the reduced pseudo-ITD matrix elements to the physical-continuum limit before extracting $xg(x)/\langle x \rangle_g$. Then using the gluon momentum fraction $\langle x \rangle_g$ calculated on the same configurations, we determine the unpolarized nucleon gluon PDF $xg(x)$ and compare results with other lattice and selected global fits.Comment: 10 pages, 3 figures, DIS2023 conference proceedings, based on full paper: arXiv:2210.0998

Intergenerational Transfers And Estate Planning: The Iowa Experience

Both state and federal governmental agencies impose taxes upon the transfer of property or wealth at death or as gifts during lifetime. Transfer taxation is justified on at least four grounds: to restrict a person\u27s right to dispose of property at death or during life, to restrict the acquisition of wealth by way of bequests, to achieve a more equal distribution of wealth, and to tax property accumulations that have escaped taxation as income

BESST: A Miniature, Modular Radiometer

A new radiometer assembly has been developed that incorporates modular design principles in order to provide flexibility and versatility. The assembly, shown in Figure 1, is made up of six modules plus a central cubical frame. A small thermal imaging detector is used to determine the temperature of remote objects. To improve the accuracy of the temperature reading, frequent calibration is required. The detector must view known temperature targets before viewing the remote object. Calibration is achieved by using a motorized fold mirror to select the desired scene the detector views. The motor steps the fold mirror through several positions, which allows the detector to view the calibration targets or the remote object. The details, features, and benefits of the radiometer are described in this paper

A review of the Namaqua gecko, Pachydactylus namaquensis (Reptilia: Gekkonidae) from southern Africa, with the description of two new species

An analysis of morphological and allozyme variation in the Namaqua gecko, Pachydactylus namaquensis from southern Africa is presented. Three separately evolving lineages, well defined by morphology and allozyme variation, are identified. The isolated southern population, occurring on the southern escarpment and Cape Fold Mountains surrounding the western Little Karoo, is named P. kladamderma sp. nov., and is characterized by a slit-like ear opening, low number of granules bordering the mental (3-6) and mental and adjacent infralabials (513), the frequent (79%) occurence of the supralabial entering the nostril, and its drab brown base colouration. A northern population, occurring in southern Namibia and the Richtersveld is named P. haackei sp. nov., and is characterized by its more rounded or squared ear opening; high number of granules bordering the mental and adjacent infralabials (11-19), the general exclusion of the supralabial from the nostril (only 3.7% entry), and brighter, lighter colouration. It is further differentiated from P. kladaroderma on the basis of fixed differences at 11 allozyme loci. Both new species differ from P. namaquensis,  which is mainly restricted to Little Namaqualand, but is sympatric with P. haackei in the Lower Orange River region, by their more heterogenous dorsal scalation, smaller cloacal spurs, lack of spine-like tubercles on the lateral surfaces of the tail, and more fragile skin. The type locality of P. namaquensis is restricted to ‘the vicinity of Springbok, Little Namaqualand, Northern Cape Province, South Africa’