5,986 research outputs found
Social Metadata for Libraries, Archives and Museums. Part 3: Recommendations and Readings
No full textRecommendations on social metadata features most relevant to libraries, archives, and museums and an annotated reading list of the literature the research group consulted during our research. We believe it is riskier to do nothing and become irrelevant to our user communities than to start using social media features
Synthesis And Characterization Of Low Bandgap Nanocrystalline T-Zirconia [TA418.9.N35 N692 2007 f rb].
No full textSerbuk nanohablur t-ZrO2 disintesis melalui kaedah kimia untuk mencari kemungkinan jika dop elektronik akan meningkatkan konduktiviti elektronik oksida. Y3+
ditambah sebagai penstabil untuk mengekalkan fasa t-ZrO2 manakala Nb5+ dimasukkan untuk dop elektronik.
Nanocrystal t-ZrO2 powders were synthesized through a chemical route to seek a possibility if electronic doping would improve the electronics conductivity of the oxide.
Y3+ was added as a stabilizer to retain tetragonal phase ZrO2 whereas Nb5+ was added for electronics doping
Risk factors for new-onset low back disability among Japanese workers: results from the Culture and Psychosocial Influences on Disability (CUPID) study in Crete
No full textMethods As a part of the international CUPID study, we followed up 955 workers (651 men; mean age 37.0 years), who at baseline had been free from LBP for ?1 year. At baseline, information was collected about demographic variables, musculoskeletal pain at different anatomical sites, occupational physical activities, and psychosocial risk factors. Subsequent occurrence of LBP and associated disability was ascertained by a follow-up questionnaire after 1 year. LBD was defined as LBP interfering with work or leading to sick-leave. Associations between risk factors and incident LBD were assessed by logistic regression. Results 6.1% of the workers developed LBD during the follow- up period. History of LBP, occupational physical activities (e.g., climbing up or down more than 30 flights of stairs per day, bending and twisting for ?4 h per day), frequent and severe neck or shoulder discomfort, inadequate breaks at work, and ?60 h of work per week were statistically significant risk factors of new-onset LBD. Conclusions The observed associations with long working hours and frequent and severe neck or shoulder discomfort (which is a common somatising symptom in the Japanese) indicate a role of psychosocial as well as physical risk factors in the development of LBD
Cytokine-induced Src homology 2 protein (CIS) promotes T cell receptor-mediated proliferation and prolongs survival of activated T cells
No full textCopyright @ 2000 The Rockefeller University Press. This article is shared under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/3.0/ and http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode.Members of the suppressor of cytokine signaling (SOCS) family were discovered as negative regulators of cytokine signaling by inhibition of the Janus kinase–signal transducer and activator of transcription (Jak-STAT) pathway. Among them, cytokine-induced Src homology 2 (SH2) protein (CIS) was found to inhibit the interleukin 3– and erythropietin-mediated STAT5 signaling pathway. However, involvement of SOCS proteins in other signaling pathways is still unknown. This study shows that the expression of CIS is selectively induced in T cells after T cell receptor (TCR) stimulation. In transgenic mice, with selective expression of CIS in CD4 T cells, elevated CIS strongly promotes TCR-mediated proliferation and cytokine production in vitro, and superantigen-induced T cell activation in vivo. Forced expression of CIS also prolongs survival of CD4 T cells after TCR activation. Molecular events immediately downstream from the TCR are not changed in CIS-expressing CD4 T cells, but activation of mitogen-activated protein (MAP) kinase pathways by TCR stimulation is significantly enhanced. Together with the increased MAP kinase activation, a direct interaction of CIS and protein kinase Cθ was also demonstrated. These results suggest that CIS is one of the important regulators of TCR-mediated T cell activation. The functions of CIS, enhancing TCR signaling and inhibiting cytokine signaling, may be important in the regulation of immune response and homeostasis.The Swedish Medical Council, the Foundation for Strategic Research
(SSF) and the Medical faculty at Lund University
Full-Stack End-to-End mmWave Simulations Using 3GPP and NYUSIM Channel Model in ns-3
No full textAccurate channel modeling and simulation tools are vital for studying sub-THz and millimeter (mmWave) wideband communication system performance. To accurately design future high data rate, low latency wireless modems, the entire protocol stack must be appropriately modeled to understand how the physical layer impacts the end-to-end performance experienced by the end user. This paper presents a full stack end-to-end performance analysis in ns-3 using drop-based NYU channel model (NYUSIM) and 3GPP statistical channel model (SCM) in scenarios, namely urban microcell (UMi), urban macrocell (UMa), rural macrocell (RMa), and indoor hotspot (InH) at 28 GHz with 100 MHz bandwidth. Video data is transmitted at 50 Mbps using User Datagram Protocol (UDP), and we observe that the RMa channel is benign in non-line of sight (NLOS) for NYUSIM and 3GPP SCM as it exhibits no packet drops and yields maximum throughput (48.1 Mbps) and latency of ∼ 20 ms. In NLOS, for NYUSIM, the UMa and RMa channels are similar in terms of throughput and packet drops, and the latency in UMi and InH scenarios is 10 times and 25 times higher respectively compared to UMa. Our results indicate that mmWave bands can support data rates of 50 Mbps with negligible packet drops and latency below 150 ms in all scenarios using NYUSIM
DS_10.1177_0022034520913250 – Supplemental material for Effects of Sulfonylureas on Periodontopathic Bacteria-Induced Inflammation
No full textSupplemental material, DS_10.1177_0022034520913250 for Effects of Sulfonylureas on Periodontopathic Bacteria-Induced Inflammation by Y. Kawahara, T. Kaneko, Y. Yoshinaga, Y. Arita, K. Nakamura, C. Koga, A. Yoshimura and R. Sakagami in Journal of Dental Research</p
(Page 290) Composition of a manganese deposit sample from the Todoroki Mine, Japan
No full textThe Todoroki Mine is situated about 25 kilometers to the south-east of Ginzan railway station in Siribesi Province, Hokkaido. The author analysed an interesting specimen of black manganese-ore which had a fractured surface which looked like that of a broken piece of wood. This new manganese mineral was studied in its form, physical properties and chemical composition. The author later named this mineral form as "todorokite"
Ns-3 Implementation of Sub-Terahertz and Millimeter Wave Drop-based NYU Channel Model (NYUSIM)
No full textThe next generation of wireless networks will use sub-THz frequencies alongside mmWave frequencies to enable multi-Gbps and low latency applications. To enable different verticals and use cases, engineers must take a holistic approach to build, analyze, and study different parts of the network and the interplay among the lower and higher layers of the protocol stack. It is of paramount importance to accurately characterize the radio propagation in diverse scenarios such as urban microcell (UMi), urban macrocell (UMa), rural macrocell (RMa), indoor hotspot (InH), and indoor factory (InF) for a wide range of frequencies. The 3GPP statistical channel model (SCM) is oversimplified and restricted to the frequency range of 0.5-100 GHz. Thus, to overcome these limitations, this paper presents a detailed implementation of the drop-based NYU channel model (NYUSIM) for the frequency range of 0.5–150 GHz for the UMi, UMa, RMa, InH, and InF scenarios. NYUSIM allows researchers to design and evaluate new algorithms and protocols for future sub-THz wireless networks in ns-3
DS_10.1177_0022034520901731 – Supplemental material for Functional Analysis of PTH1R Variants Found in Primary Failure of Eruption
No full textSupplemental material, DS_10.1177_0022034520901731 for Functional Analysis of PTH1R Variants Found in Primary Failure of Eruption by E. Izumida, T. Suzawa, Y. Miyamoto, A. Yamada, M. Otsu, T. Saito, T. Yamaguchi, K. Nishimura, M. Ohtaka, M. Nakanishi, K. Yoshimura, K. Sasa, R. Takimoto, R. Uyama, T. Shirota, K. Maki and R. Kamijo in Journal of Dental Research</p
Supplemental Material, MTX_Table#6-S - Modulation of methotrexate-induced intestinal mucosal injury by dietary factors
No full textSupplemental Material, MTX_Table#6-S for Modulation of methotrexate-induced intestinal mucosal injury by dietary factors by T Higuchi, M Yoshimura, S Oka, K Tanaka, T Naito, S Yuhara, E Warabi, S Mizuno, M Ono, S Takahashi, S Tohma, N Tsuchiya and H Furukawa in Human & Experimental Toxicology</p
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