in this paper, the concept of k-regular fuzzy matrix as a general- ization of regular matrix is introduced and some basic properties of a k-regular fuzzy matrix are derived. this leads to the characterization of a matrix for which the regularity index and the index are identical. further the relation between regular, k-regular and regularity of powers of fuzzy matrices are dis- cussed.

Injury to the acetabular growth plate is rare. Accordingly, data on the incidence in the literature are controverse. Other difficulties include the clear definition of a pediatric acetabular injury. The modified classification according to Salter-Harris described by Bucholz is used in immature patients. The majority of these injuries can be treated conservatively. In severely displaced injuries...

The title compound, [Fe(C(5)H(5))(C(30)H(32)O(7)P)], which is an inter-mediate in the synthesis of (R(p))-2-(diphenyl-phos-phino)ferrocene-1-carboxylic acid, crystallizes in the common chiral space group P2(1)2(1)2(1). In general, the mol-ecular geometry is very similar to that of the corresponding 2,1'-bis-(diphenyl-phosphino) congener. The ferrocene unit assumes a regular geometry with the pr...

A young patient suffering from schizophrenia had intense headaches and photophobia which were induced by intra-ocular injections of mercury. The clinical diagnosis was established once foreign bodies were visualized on regular X-rays of the patients skull. The mercury intoxication in combination with the secondary irreversible lesions to the eyes necessitated a bilateral enucleation and the use...

In this paper, we report on the magnetic properties of isolated nanoparticles and interacting nanochains formed by the self-assembly of Ni nanoparticles. The magnetic properties were studied using superconducting quantum interference device (SQUID) magnetometry and magnetic force microscopy (MFM). We demonstrate that single-domain Ni nanoparticles spontaneously form one-dimensional (1D) chains ...

A 32 year old female presented with a history of 2 miscarriages at 6 weeks of pregnancy followed by 10 years of infertility. A bilateral wedge resection for polycystic ovaries had been carried out 8 years ago and had resulted in regular periods. A post-surgical laparoscopy revealed a blocked left tube and a tortuous right tube with multiple adhesions, which were partially freed. An unsuccessful...

A complete partition of a graph is a partition of the vertex set such that any two classes are connected by an edge. We consider the problem of finding a complete partition maximizing the number of classes. This relates to clustering into the greatest number of groups so as to minimize the diameter (inter-cluster connectivity) without concern for the intra-cluster topology. We give a randomized...

We measured individual temporalchanges in-y-glutamyltransferase activity in serum afterfourconsecutive ethanolchallengesineach ofeightapparentlyhealthy volunteers. Each challengeconsistedofingesting 0.759 ofethanolperkilogramofbody weight on two evenings, followed by fivedaysofabstention duringwhich the activity was assessed at regular intervals. A nine-day abstention periodprecededthestudy, an...

mologist told me that his eye department, in a rural part of his country, had recently lost its non-governmental organisation (NGO) support. As a result, he had not performed any cataract operations for several weeks, because the hospital had not ordered the necessary intra-ocular lenses (IOLs). This seemed a very unfortunate state of affairs – but also something others could learn from. We hav...

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 cerebral amyloid angiopathy (caa) is the most common cause of lobar intracerebral hemorrhage. repeated bleeding may be presented with vascular dementia. we have reported a 68-year-old normotensive demented patient with probable caa presented with hemiparesia, headache and vomiting. according to the experience of this case,...