In This Issue In This Issue Pulling on a cytokine he extracellular matrix (ECM) acts as a storage facility for tons of factors waiting to do business in the cell. Annes et al. (page 723) show that the ECM anchoring of one factor, the cytokine TGF-␤ , is essential for its activation. The anchoring may give cells something to pull against, with the pulling mediating the activation. Most TGF-␤ is ...

In This Issue In This Issue Pulling on a cytokine he extracellular matrix (ECM) acts as a storage facility for tons of factors waiting to do business in the cell. Annes et al. (page 723) show that the ECM anchoring of one factor, the cytokine TGF-␤ , is essential for its activation. The anchoring may give cells something to pull against, with the pulling mediating the activation. Most TGF-␤ is ...

A ,neural ‘nM?tUJOrk is tro.in,ed by using CL set of ~Z’lJaib nble exn.m,ples to minimize the twining error sv.ch th,nt the network pnra,meters ,fit the eznmples well. However, it is desired to min.imize the generalization error to which no direct access is possible. There are discrepa,ncies between the training error an.d the gen,eralization error due to th,e statistical fluctuation of exnmple...

2. Matesanz R, Miranda B, Felipe C: Organ procurement in Spain: Expanding the organ donor The impact of transplant coordination. Clin Transplant 8:281–286, 1994 3. Matesanz R, Miranda B, Felipe C, Naya T: Continuous improvepool: The Spanish Model ment in organ donation. Transplantation 61:1119–1121, 1996 4. International figures on organ donation and transplantation—1999, in Transplant Newslett...

The nitrification inhibitor, dicyandiamide (cyanoguanidine) (DCD), can improve fertilizer N efficiency; however, yield reductions and phytotoxicity from the use of DCD have been reported. A green­ house experiment was designed to determine the effect of DCD on growth, chlorophyll concentration and nutrient concentration of corn ( Zea mays L.), cotton ( Gossypium hirsutum L.), and grain sorghum ...

s, 1934, 8, No. 153.50. KARWOSKI, T. F., & BERTHOLD, F., JR. Psychological studies insemantics: II. Reliability of freeassociation tests. /. soc. Psychol,1945,22,87-102.51. KARWOSKI, T. F., GRAMLICH, F. W.,& ARNOTT, P. Psychological stud-iesin semantics: I. Free association reactions to words, drawings, and NATURE AND MEASUREMENT OF MEANING235 objects. J, soc. Ps...

structure. These signals typically occur in environments that contain interferers of exploitable structure. The goal This paper addresses the problem of direction finding for of this paper is to introduce a new algorithm, referred to unstructured emitters in environments that contain interas Copy-Aided Joint Maximum Likelihood (CA-JML), that ference signals with exploitable properties. The CA-J...

Leiomyomas are the common benign tumours of uterus. Surgery is the most common mode of treatment of symptomatic fibroids. With the advent of minimally invasive interventional procedures like uterine artery embolization (UAE), and focused ultrasound on MRI we got some lesser invasive techniques, although they have drawbacks regarding ovarian reserve etc for patients desiring fertility. Initially...

Sedimentary greigite (Fe3S4) can form either by “biologically controlled ” or by “biologically induced min­ eralization ” (BCM and BIM, respectively). In order to identify the origin of magnetic Fe sulfides, we studied and compared the sizes and morphologies of greigite crystals produced by a magnetotactic microorganism (previously described and referred to as the “many-celled magnetotactic pro...

resources by placing highly erodible land into perennial vegetation for 10 yr. Similar programs have been used Management practices for conversion of land supporting perennial historically in the USA to control erosion (e.g., soil vegetation to crop production are needed. Effect of haying (hayed bank program) and influence grain supplies. Programs or not hayed), cropping (annual crop with no-ti...