Scopul nostru este sprijinirea şi promovarea cercetării ştiinţifice şi facilitarea comunicării între cercetătorii români din întreaga lume.
In the paper there are presented data concerning the syntheses in cold plasma conditions of vinyl polymers. The new synthesised structures are characterized from the viewpoint of some physico-chemical properties. As a consequence of the realized structure (network) the synthesised polymers are proposed as a matrix for bioactive substances.
Read moreFT-IR spectroscopy has been employed to study compatibility, melting, and crystallization of the polyethylene adipate (PEA)/cholesteryl palmitate (CP) blends. The changes in FT-IR spectra were followed by controlled rate of heating and cooling. The bands corresponding to the crystalline structure have been assigned. The accuracy of the transition temperature determination has been improved by fitting the curve of the integral absorbance dependence
Read moreThe use of electromagnetic waves for subsurface sensing has enjoyed a lot of interest due to the three main advantages over the other types of sensors: no need of direct ground contact, the ability to detect metallic as well as non-metallic objects and the ability to make 3D imaging. Although the time domain systems are much easier to build there are some reasons to use frequency systems such as: wider dynamic range, higher mean power and, probably
Read moreBilingual edition; translation into Romanian by Cristian Bejan; introduction, chronology, notes and appendices by Dragos Mirsanu
Read moreAbstract. Chondrosarcoma is a malignant tumor that produces cartilage matrix. Occurs in the fourth to sixth decades and has a male to female ratio of 2/1. It is most common in the long bones and on the surface of the pelvis. The authors present a case of chondrosarcoma of the upper end of the femur of a 50-year-old female patient who has come in our Department of Orthopedics and Traumatology two month ago, complaining of severe and persistent pain
Read moreThe magnetic recordings preserved in calcite speleothems and the nature of their constituent magnetic minerals hold enormous potential for paleomagnetic and paleoenvironmental reconstructions. Speleothems lock in magnetization instantly, are not affected by post-depositional effects, and can be dated with high precision. The natural remanence in speleothems is carried mainly by magnetite, and the main remanence acquisition mechanism is depositional,
Read moreSleep-related breathing disorders are the most frequent medical cause of daytime sleepiness. Obstructive sleep apnea syndrome (OSAS) has been demonstrated to significantly increase safety and health risks and has been associated with a high risk for motor vehicle accidents, probably the highest of all risks due to medical conditions. Treatment of patients with obstructive sleep apnoea with continuous positive airway pressure (CPAP) is effective as
Read moreSleep-related breathing disorders are the most frequent medical cause of daytime sleepiness. Obstructive sleep apnea syndrome (OSAS) has been demonstrated to significantly increase safety and health risks and has been associated with a high risk for motor vehicle accidents, probably the highest of all risks due to medical conditions. Treatment of patients with obstructive sleep apnoea with continuous positive airway pressure (CPAP) is effective as
Read moreThe “Izvorul Bigãr” Nature Reserve is located in south-western Romania. The aim of the present paper is to describe some aspects of the flora and vegetation around Bigãr spring. The analysis of the vegetal association was done using the method of the Central-European phyto-coenological school. The vegetation around the Bigãr spring and waterfall is dominated by compact beech forests with a grassy layer frequently reduced and a soil rich in
Read moreNew magnetic composite materials, ribbon samples, with nominal compositions FexCu1-x (x = 0.2; 0.5; 0.8) were obtained by the melt spinning technique. Various information was provided via X-ray diffraction, Mössbauer and magnetic measurements. The structural aspects: phase composition, size and texture effects, have been corroborated with magnetic properties. Finally, the possibility to choose the adequate composition and the suitable processing
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