based on thorough documentation and of continuing use in medical libraries is a list of early American journals conveniently grouped under state-names; amongst them is a title curiously unnoticed in Austin'sEarly American Medical Imprints, that of the first medical journal published in the United States about 1790, a translation from the French (Journal of the practice of medicine .. . in the m...

We have typed 275 men from five populations in Algeria, Tunisia, and Egypt with a set of 119 binary markers and 15 microsatellites from the Y chromosome, and we have analyzed the results together with published data from Moroccan populations. North African Y-chromosomal diversity is geographically structured and fits the pattern expected under an isolation-by-distance model. Autocorrelation ana...

Thermogravimetry-coupled with differential scanning calorimetry, quadrupole mass spectrometry, and Fourier-transform infrared spectroscopy (TG-DSC-QMS-FTIR)-was applied to monitor the thermal stability (in an N2 pyrolytic atmosphere) and chemical properties of natural polymers, fulvic (FA) and humic acids (HA), isolated from chemically different soils. Three temperature ranges, R1, 40-220°C; R2...

This work provides insights into the relationship between pyrolysis products distribution and structural features of xylose-based hemicelluloses. Three hemicelluloses differing in composition, molecular weight, chain branching origin were selected, structurally characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis nuclear magnetic resonance then used as feedstocks...

Laser-induced graphitization leads to screen printed highly oriented pyrolytic graphite electrodes.

Fast pyrolysis is an efficient technique for thermal degradation of lignin to bio-oils containing bio-phenols for the synthesis of adhesives, resins, and polymers. Lignin has a complex structure, and hence a large number of pyrolytic components are generated during the pyrolysis process. The composition of the pyrolytic products depends on the type of lignin, temperature, types of catalyst, and...