scholarly journals 4-year-old girl • limited movement & diffuse pain in both arms • pronated hands • Dx?

2020 ◽  
Vol 69 (7) ◽  
Author(s):  
Anderson
Keyword(s):  
1998 ◽  
Vol 38 (7) ◽  
pp. 73-79 ◽  
Author(s):  
Hooi-Ling Lee ◽  
Donald DeAngelis ◽  
Hock-Lye Koh

This paper discusses the spatial distribution patterns of the various species of the Unionid mussels as functions of their respective life-cycle characteristics. Computer simulations identify two life-cycle characteristics as major factors governing the abundance of a species, namely the movement range of their fish hosts and the success rate of the parasitic larval glochidia in finding fish hosts. Core mussels species have fish hosts with large movement range to disperse the parasitic larval glochidia to achieve high levels of abundance. Species associated with fish host of limited movement range require high success rate of finding fish host to achieve at least an intermediate level of abundance. Species with low success rate of finding fish hosts coupled with fish hosts having limited movement range exhibit satellite species characteristics, namely rare in numbers and sparse in distributions.


Weed Science ◽  
1971 ◽  
Vol 19 (4) ◽  
pp. 363-369 ◽  
Author(s):  
R. H. Strang ◽  
R. L. Rogers

The technique of microradioautography was used to study the absorption and translocation ofa,a,a-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (trifluralin) by cotton (Gossypium hirsutumL., var. Coker 201) and soybean (Glycine max(L.) Merr., var. Lee). Radioactivity from14C-trifluralin was retained primarily on the surfaces of the roots of cotton and soybean. This was apparently due to a tenacious adsorption or binding of the radioactivity to the epidermis and cuticle. Entrance of radioactivity into the roots of these species was greatly facilitated by breaks in the epidermis, such as might occur from seedling diseases or mechanical damage. Within the roots, radioactivity was noted in the walls of the xylem vessels and cortical cells. Little movement out of the soybean roots was observed, but limited movement of radioactivity into the leaves of cotton, apparently via the metaxylem, was noted. Radioactivity accumulated in the protoxylem of the cotton stem where many elements appeared to be plugged. Results of this study indicate that care should be used in interpreting data from studies where loss of radioactivity from nutrient media is used as a criterion of herbicide absorption, and where gross radio autography is used as an indicator of herbicide translocation.


2020 ◽  
Vol 34 (6) ◽  
pp. 801-806
Author(s):  
Kshitij Khatri ◽  
Nathan S. Boyd

AbstractMetam potassium (metam-K) is a soil fumigant used commonly in Florida at the end of the tomato and pepper production season. The fumigant essentially cleans a field by killing the established weeds and crops after harvest. The goal of this project was to determine the optimal rate of metam-K for the effective termination of tomato, pepper, and established weeds such as purple nutsedge, goosegrass, and dogfennel. Tomato, pepper, and purple nutsedge at bed center were effectively terminated with the metam-K rate of 65 kg ha−1. Optimal rates required for the termination of goosegrass and dogfennel were 91 and 156 kg ha−1, respectively. In contrast, metam-K at 500 to 680 kg ha−1 was required to terminate purple nutsedge on bed edges. The reduced efficacy of metam-K at bed edge might be related to the limited movement of metam-K in soil.


1996 ◽  
Vol 44 (6) ◽  
pp. 599 ◽  
Author(s):  
AD Loch ◽  
MP Zalucki

The spatial pattern of outbreaks of pink wax scale, Ceroplastes rubens Maskell, within and among umbrella trees, Schefflera actinophylla (Endl.), in southeastern Queensland was investigated. Pink wax scale was common on S. actinophylla, with approximately 84% of trees positive for scale and 14% of bees recording outbreak densities exceeding 0.4 adults per leaflet. Highly aggregated distributions of C. rubens occur within and among umbrella trees. Clumped distributions within trees appear to result from variable birth and death rates and limited movement of first instar crawlers. The patchy distribution of pink wax scale among trees is probably a consequence of variation in dispersal success of scale, host and environmental suitability for establishment and rates of biological control. Pink wax scale was more prevalent on trees in roadside positions and in exposed situations, indicating that such trees are more suitable and/or susceptible to scale colonisation.


2019 ◽  
Vol 20 (2) ◽  
pp. 72-78
Author(s):  
Tulay Cevik Saldiran ◽  
Ozlem Yilmaz

2002 ◽  
Vol 51 (2) ◽  
pp. 127-133 ◽  
Author(s):  
R. Gioria ◽  
L. M. Espinha ◽  
J. A. M. Rezende ◽  
J. O. Gaspar ◽  
E. W. Kitajima

1973 ◽  
Vol 53 (4) ◽  
pp. 465-472 ◽  
Author(s):  
D. M. WILSON ◽  
P. C. OLOFFS

Residues from high-purity chlordane (Velsicol HCS-3260) were determined in British Columbia soils for 16 mo following applications in June 1971 at two rates of 5.6 and 11.2 kg active ingredients (a.i.)/ha. Residues from a cool, moist location declined rapidly during the 1st mo following application, with greater percentage loss from the lower application rate. From the 2nd mo until 16 mo after application, decay rates were linear with time. Although 225 cm rain fell during this period, less than 2% of the total residues reached the 15–23-cm horizon. Calculated half-lives were 4 and 11 mo, respectively. Residues from a semiarid location were more persistent and did not decline rapidly within the 1st mo after application. Possible reasons for these differences are discussed. Leaching experiments with five different soil types in the laboratory confirmed the limited movement of chlordane observed in field soil.


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