Does Size Matter? An Investigation of Collaborative Information Technology Adoption by US Firms

We explore the adoption pattern of seven IT innovations to support taskoriented collaboration between group members working asynchronously or synchronously and the impact of two size-related variables, organization size and the size of the internal IT function, on the adoption of these seven IT innovations. IT adoption is viewed as a transition from the state of non-adoption to adoption (adoption status) and then to the extent of accessibility of the IT to organizational end-users (adoption level). Analysis of data collected from one hundred and eighteen U.S. organizations suggests that adoption patterns of the seven IT clusters vary considerably and that size (organization and IT function) is associated with the aggregate adoption status of the ITs investigated. Larger organizations with larger IT functions had adopted more of the ITs than their smaller counterparts. However, when exploring effects of size-related variables on adoption status of individual IT clusters, our findings suggest that size is associated with adoption of only those IT clusters that may require large resource infusions for acquisition, are fairly complex to use, and require substantial technical support. Size was not found to be associated with the adoption level of the majority of individual IT clusters. However, interestingly, at the aggregate level, our results suggest that once adopted, the IT clusters had higher adoption level in smaller organizations than their larger counterparts. Implications of these findings are discussed along with some directions for practice and research

A microlensing measurement of dark matter fractions in three lensing galaxies

Direct measurements of dark matter distributions in galaxies are currently only possible through the use of gravitational lensing observations. Combinations of lens modelling and stellar velocity dispersion measurements provide the best constraints on dark matter distributions in individual galaxies, however they can be quite complex. In this paper, we use observations and simulations of gravitational microlensing to measure the smooth (dark) matter mass fraction at the position of lensed images in three lens galaxies: MG 0414+0534, SDSS J0924+0219 and Q2237+0305. The first two systems consist of early-type lens galaxies, and both display a flux ratio anomaly in their close image pair. Anomalies such as these suggest a high smooth matter percentage is likely, and indeed we prefer ~50 per cent smooth matter in MG 0414+0534, and ~80 per cent in SDSS J0924+0219 at the projected locations of the lensed images. Q2237+0305 differs somewhat in that its lensed images lie in the central kiloparsec of the barred spiral lens galaxy, where we expect stars to dominate the mass distribution. In this system, we find a smooth matter percentage that is consistent with zero.Comment: 7 pages, 4 figures. Accepted for publication in Ap

Results of the Cooperative Uniform Soybean Tests, 1947 Part I. North Central States

United States Department of Agriculture, Agricultural Research Administration; Bureau of Plant Industry, Soils, and Agricultural Engineering, Division of Forage Crops and Diseases Cooperating with State Agricultural Experiment Station

Results of the Cooperative Uniform Soybean Tests, 1948 Part I. North Central States

United States Department of Agriculture, Agricultural Research Administration; Bureau of Plant Industry, Soils, and Agricultural Engineering, Division of Forage Crops and Diseases Cooperating with State Agricultural Experiment Station

Results of the Cooperative Uniform Soybean Tests, 1946 Part I. North Central States

United States Department of Agriculture, Agricultural Research Administration; Bureau of Plant Industry, Soils, and Agricultural Engineering, Division of Forage Crops and Diseases Cooperating with State Agricultural Experiment Station

Results of the Cooperative Uniform Soybean Tests, 1945. Part I. North Central States

United States Department of Agriculture Agricultural Research Administration Bureau of Plant Industry, Soils, and Agricultural Engineering, Division of Forage Crops and Diseases Cooperating with State Agricultural Experiment Station

Results of the Cooperative Uniform Soybean Tests Part I. North Central States 1949

United States Department of Agriculture, Agricultural Research Administration; Bureau of Plant Industry, Soils, and Agricultural Engineering, Division of Forage Crops and Diseases Cooperating with State Agricultural Experiment Station

Synthesis, Characterisation, and Preliminary In Vitro Studies of Vanadium(IV) Complexes with a Schiff Base and Thiosemicarbazones as Mixed Ligands

[VO(sal‐L‐tryp)(H2O)] (1, sal‐L‐tryp = N‐salicylidene‐L‐tryptophanate) was used as a precursor to produce the new complexes [VO(sal‐L‐tryp)(MeATSC)]·1.5C2H5OH [2, MeATSC = 9‐Anthraldehyde‐N(4)‐methylthiosemicarbazone], [VO(sal‐L‐tryp)(N‐ethhymethohcarbthio)]·H2O [3, N‐ethhymethohcarbthio = (E)‐N‐ethyl‐2‐(4‐hydroxy‐3‐methoxybenzylidene)hydrazinecarbothioamide] and [VO(sal‐L‐tryp)(acetylethTSC)]·C2H5OH {4, acetylethTSC = (E)‐N‐ethyl‐2‐[1‐(thiazol‐2‐yl)ethylidene]hydrazinecarbothioamide} by reaction with the respective thiosemicarbazone. The chemical and structural properties of these ligands and complexes were characterised by elemental analysis, ESI‐MS, FTIR, UV/Vis, ESR and 1H and 13C NMR spectroscopy and X‐ray crystallography. Dimethyl sulfoxide (DMSO) and [D6]DMSO solutions of 1–4 were oxidised in air to produce vanadium(V) species, which were verified by ESI‐MS and 51V NMR spectroscopy. The anticancer properties of 2–4 were examined with three colon cancer cell lines, HTC‐116, Caco‐2 and HT‐29, and noncancerous colonic myofibroblasts, CCD18‐Co. Compounds 2–3 exhibited less inhibitory effects in the CCD‐18Co cells, which indicates a possible cytotoxic selectivity towards colon cancer cells. In general, compounds that exhibit antiproliferative activity to cancer cells but do not affect noncancerous cells may have a potential in chemotherapy

Group Support Systems: experiments with an online system and implications for same-time/different places working

This is the author accepted manuscript. The final version is available from Springer via the DOI in this recordWe present an analysis of the Group Explorer Group Support System (GSS) from the perspective of its implementation as technology that can support same-time/different-places group workshops. The purpose of the chapter is to report on our experiences with using a same-time/different places GSS, introduce issues that arise from these experiences, and discuss future prospects. The chapter commences by reviewing our current understanding of GSS and how they support the use of distributed Problem Structuring Methods (PSMs) in both single organization and multi-organization settings. The configuration and use of a cloud-based online version of the GSS is presented that highlights some of the key technological, organisational and facilitation issues involved in supporting distributed PSM workshops. The future development of such online GSS is discussed with a particular focus on two emerging research questions; the future role of the facilitator in online GSS, and the commonalities between online GSS and social media platforms as different-times/different-places group working, such as crowdsourcing, become prevalent in the context of increasing globalisation and the ongoing decentralisation of work environments.Engineering and Physical Sciences Research Council (EPSRC)Natural Environment Research Council (NERC)European Union FP7European Union Horizon 202