Kibrom M. Alula, James H. Resau and Osman V. Patel
physiological differences are evidently stemming from aberrations induced at the cellular/molecular level by these g -load shifts. In addition, research has shown that changes in inertial force lead to dysregulation of the cellular proliferation and apoptosis equilibrium ( Blaber et al., 2013 ; Hauschild et al., 2014 ; Maier et al., 2015b ). Although, the myriad of physiological effects has been known for decades, remarkable increase in knowledge on the consequences of g -load shift at cellular and molecular levels utilizing model organisms holds promise to understand an
Pedro J. Llanos, Kristina Andrijauskaite, Vijay V. Duraisamy, Francisco Pastrana, Erik L. Seedhouse, Sathya Gangadharan, Leonid Bunegin and Mariel Rico
In early 2016, the Department of Applied Aviation Sciences (AAS) at the Embry-Riddle Aeronautical University (ERAU) was granted a suborbital flight opportunity to work on a Science, Technology, Engineering, and Mathematics (STEM) research project. The Spaceflight Operations team in the AAS department was already developing other suborbital payloads as part of the Arete STEM Project (ARETE) to demonstrate joint commercial spaceflight activities. The main aim of this research was to investigate the effect of microgravity on T-cells and to
L. Chen, E.A. Selimovic, M. Daunis, T.A. Bayers T, L.J. Vargas, I.T. O’Brien, C.B. McEnroe, A.E. Kozerski, A.C. Vanhoover, W.D. Gray and J.F. Caruso
. Subjects then performed IET exercises in the following order with their left leg: standing knee extension, standing hip extension, and seated calf press. Per exercise, they did three 60-s sets separated by 90-s rests. They were instructed to exert maximal effort and were verbally encouraged during sets to perform repetitions as rapidly as possible as they maintained proper form. Our exercise protocol’s rationale stems from the idea that osteogenic exercise should be nontraditional and/or nonsteady state in nature ( Mittag et al., 2015 ; Yang et al., 2015 , Yang et al
Here we report a successful preparation of nanostructured calcium silicate by wet chemical approach. The synthesized sample was characterized by various physico-chemical methods. Thermal stability was investigated using thermo-gravimetric and differential thermal analysis (TG-DTA). Structural characterization of the sample was carried out by the X-ray diffraction technique (XRD) which confirmed its single phase hexagonal structure. Transmission electron microscopy (TEM) was used to study the nanostructure of the ceramics while homogeneous grain distribution was revealed by scanning electron microscopy studies (SEM). The elemental analysis data obtained from energy dispersive X-ray spectroscopy (EDAX) were in close agreement with the starting composition used for the synthesis. Superhydrophilic nature of CaSiO3 was investigated at room temperature by sessile drop technique. Effect of porous nanosized CaSiO3 on early adhesion and proliferation of human bone marrow mesenchymal stem cells (BMMSCs) and cord blood mesenchymal stem (CBMSCs) cells was measured in vitro. MTT cytotoxicity test and cell adhesion test showed that the material had good biocompatibility and promoted cell viability and cell proliferation. It has been stated that the cell viability and proliferation are significantly affected by time and concentration of CaSiO3. These findings indicate that the CaSiO3 ceramics has good biocompatibility and that it is promising as a biomaterial.
S. Kochowski, Ł. Drewniak, K. Nitsch, R. Paszkiewicz and B. Paszkiewicz
 Cheng C. W., Apostolopoulos G., Fitzgerald E. A., J. Appl. Phys., 109 (2011), 023714. http://dx.doi.org/10.1063/1.3537915
 Engel-herbert R., Hwang Y., Stemmer S., J. Appl. Phys., 108 (2010), 124101. http://dx.doi.org/10.1063/1.3520431
 Hasegawa H., Akazawa M., Domanowska A., Adamowicz B., Appl. Surf. Sci., 25 (2010), 5698. http://dx.doi.org/10.1016/j.apsusc.2010.03.091
 Martens K., Wang W., de Keersmaecker K., Borghs G., Groeseneken G., Maes H., Micr
K. Grodecki, E. Dumiszewska, M. Romaniec and W. Strupinski
direction and the differences in length are the biggest.
In Fig. 3 typical Raman spectra of InP nanowires doped with silicon (red), tellurium (black) and undoped (blue) are presented.
SEM in-lens images of InP nanowires: (a) A - undoped, (b) B - doped with Si, (c), (d) C - doped with Te.
The Raman spectra of undoped nanowires and nanowires doped with Te have a broader TO band than in the case of nanowires doped with Si. Broadening of the TO band may stem from two different effects. In the first one [ 17 ], the effect comes from bending nanowires
surprisingly, B 0 estimated from the B-M fit at T = 700 K is enormous, comparable with the bulk modulus of diamond B 0 (diamond) = 442 GPa [ 49 ]. One can suspect that this overestimation stems mainly from the limitation of the B-M fit to the LSDA+DMFT results obtained at T = 700 K. It is important to notice at this place that the experimental value B 0 (Pr123) = 49.9 GPa was reported from ultrasonic velocity measurements of polycrystalline Pr123 [ 50 ] and the significant discrepancy between the theory and the experiment is noticeable. It was argued [ 51 ] that the results
AND APPLICATIONS (ISDA 2016), Advances in Intelligent Systems and Computing, 800-810. https://doi.org/10.1007/978-3-319-53480-0_79
Grebski, W., Grebski, M., 2016. Keeping Technical Education Aligned to the Needs and Expectations of Industry . Management Systems in Production Engineering, 2(22), 77-80, DOI: 10.12914/MSPE-01-02-2016.
Grebski, W., Cai, S., 2012. Partnership with STEM High School as a Recruiting Tool for Engineering Program . in Proc. The 10 th Latin American and Caribbean Conference for Engineering and Industry, Panama City, Panama