Singlet Ground State and Magnetization Plateaus in Ba3_3Mn2_2O8_8

Magnetic susceptibility and the magnetization process have been measured in \green polycrystal. In this compound, the magnetic manganese ion exists as Mn$^{5+}$ in a tetrahedral environment, and thus the magnetic interaction can be described by an S=1 Heisenberg model. The ground state was found to be a spin singlet with an excitation gap $\Delta/k_{\rm B}=11.2$ K. Magnetization plateaus were observed at zero and at half of the saturation magnetization. These results indicate that the present system can be represented by a coupled antiferromagnetic dimer model.Comment: 4 pages, 4 figures, jpsj styl

A Cilia-inspired Closed-loop Sensor-actuator Array

© 2018, Jilin University. Cilia are finger-like cell-surface organelles that are used by certain varieties of aquatic unicellular organisms for motility, sensing and object manipulation. Initiated by internal generators and external mechanical and chemical stimuli, coordinated undulations of cilia lead to the motion of a fluid surrounding the organism. This motion transports micro-particles towards an oral cavity and provides motile force. Inspired by the emergent properties of cilia possessed by the pond organism P. caudatum, we propose a novel smart surface with closed-loop control using sensor-actuators pairings that can manipulate objects. Each vibrating motor actuator is controlled by a localised microcontroller which utilises proximity sensor information to initiate actuation. The circuit boards are designed to be plug-and-play and are infinitely up-scalable and reconfigurable. The smart surface is capable of moving objects at a speed of 7.2 millimetres per second in forward or reverse direction. Further development of this platform will include more anatomically similar biomimetic cilia and control

Performance limits of the three MEMS inertial energy generator transduction types

Accepted versio

POSSIBILITY OF REPLACEMENT OF SODIUM CHLORIDE BY POTASSIUM CHLORIDE IN COOKED SAUSAGES- SENSORY CHARACTERISTICS AND HEALTH

**Original scientific paper, presented at 2 nd International Congress on Animal Husbandry “ Ne

Conduct treatment of juvenile slipped epiphyses

IMSP SCMC ”V. Igantenco”, Chișinău, Republic of Moldova, Al VIII-lea Congres Naţional de Ortopedie și Traumatologie cu participare internaţională 12-14 octombrie 2016Introduction: mostly occurs in young adulthood. The disease occurs with frequency of 4-5 cases per 100 000 inhabitants, and patients with juvenile slipped epiphyses (JE) represent 0.5-5% of children with orthopedic pathology. The ratio of boys and girls - 3:2. Bilateral involvement is described in 20% of patients. Discussions: JE was described for the first time in 1572. Due to the relative rarity of the disease, many physicians are not aware of the existence of it. Until now the vast majority of children with JE were getting treatment lately. JE etiology is still far from being fully disclosed. The factors are well established: hormonal disorders, genetic predisposition, as well as hard exercises and micro traumas. Endocrine-orthopedic symptom of the disease is the breaking the correlation between sex hormones and growth hormones. Those two groups of hormones play an important role in the development and delayed puberty of the epiphyseal plates. According to some authors the obesity, anteversion on proximal femoral and bones immaturity are the causes of JE. The disease pathogenesis is a slow displacement of proximal femoral epiphysis down and dorsal. With JE the head of the femur remains acetabular fossa, so both femoral neck and femur lose contact with him. This balance is rotating around its longitudinal axis, "flips" to exterior and positions member in the position of external rotation. The clinic is pretty typical and severe form of the disease. The diagnosis is based on anamnesis, clinical examination, orthopedic, X-ray, CT and MRI. Depending on the clinical data, 3 forms of JE are determined: acute, chronic and acute form of the background chronic evolution. R-study must be carried out in two projections: anteroposterior and lateral after Lowenstein - to perform radiometric survey of Klein line. The aim is to obtain treatment of epiphysiodesis: I stage is skeletal traction which ends up with surgery. Conclusions: mandatory consultation at ortoped-pediatric doctor if there are disorders in children walking, pain in the limbs. Benefit of the treatment is directly proportional to the time when the disease was diagnosed. Support of the affected limb is excluded up to 6 months from diagnosis