Telepsychiatry (consultation carried out through 2-way interactive television) has been the object of a number of trials in the past twenty years, but to our knowledge there is no previous control study which compares CCTV and face-to-face interviews. Various aspects of the interviews carried out on CCTV were rated on a 5-point scale in questionnaires filled out by: (a) patients; (b) consultees and; (c) consultants. No significant difference was elicited with control interviews in respect to patients' diagnosis, age and sex. CCTV interview ratings by consultee and consultant were rated only slightly below those of the control group. Such findings should encourage a broader application of interactive CCTV, particularly as a complement to live consultations in distant areas.
Integrated weed management encourages long-term planning and targeted use of cultural strategies coherently combined at the cropping system scale. The transition towards such systems is challenged by a belief of lower productivity and higher weed pressure. Here, we hypothesize that diversifying the crop sequence and its associated weed management tools allow long-term agronomic sustainability (low herbicide use, efficient weed control, and high productivity). Four 6year rotations with different constraints (S2: transition from reduced tillage to no-till, chemical weeding; S3: chemical weeding; S4: typical integrated weed management system; S5: mechanical weeding) were compared to a reference (S1: 3-year rotation, systematic ploughing, chemical weeding) in terms of herbicide use, weed management, and productivity over the 2000-2017 period. Weed density was measured before and after weeding. Crop and weed biomass were sampled at crop flowering. Compared to S1, herbicide use was reduced by 46, 65, and 99% in S3, S4, and S5 respectively. Herbicide use in S2 was maintained at the same level as S1 (− 9%), due to increased weed pressure and dependence to glyphosate for weed control during the fallow period of the no-till phase. Weed biomass was low across all cropping systems (0 to 5 g of dry matter m −2) but weed dynamics were stable over the 17 years in S1 and S4 only. Compared to S1, productivity at the cropping system scale was reduced by 22% in S2 and by 33% in S3. These differences were mainly attributed to a higher proportion of crops with low intrinsic productivity in S2 and S3. Through S4's multiperformance, we show for the first time that low herbicide use, long-term weed management, and high crop productivity can be reconciled in grain-based cropping systems provided that a diversified crop rotation integrating a diverse suite of tactics (herbicides included) is implemented.
This article extends the discussion of McDonald (2005) concerning the use of shadowing as a research technique for studying actions in organizational contexts. It addresses McDonald's observation that the few studies that refer to this technique do not make any attempt to discuss their methodological choices or their epistemological standpoints. In this paper, we intend to contribute to this emerging debate in two ways. First, we explore and discuss some contrasting applications of shadowing in the organizational literature in order to render explicit the researcher's ontological and epistemological standpoints. Second, we present our own application of shadowing starting with the redefinition of organization as a plenum of agencies (Cooren, 2006) that emerges from communication (Taylor & Van Every, 2000). Considering these theoretical grounds we propose, inspired by Latour's (2005) motto "follow the actors," to shadow the hybrid character actions. This implies, from a methodological point of view: 1) documenting the flows that compose these actions, over the course of which a set of objects are mobilized in series of interactions, (2) applying an equivalent analytical strategy to whatever actor we are studying, and (3) grasping both the material and discursive dimension of communication as action.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.