Determining Alternator Reactances from Load Test Data

It is the purpose of this paper to establish equations, with some assumptions, for calculating the reactances of a synchronous generator, using load test data, and to analyze the results. For this purpose a report on power angle measurements on Unit No. 8, at Station 16, (Waukegan) of The Commonwealth Edison Company, Chicago, Illinois, was used

ગુજરાતી બાળવાર્તાક્ષેત્રે જીવરામ જોષીનું પ્રદાન

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Tribes, state, and technology adoption in arid land management, Syria:

Arid shrub-lands in Syria and elsewhere in West Asia and North Africa are widely thought degraded. Characteristic of these areas is a preponderance of unpalatable shrubs or a lack of overall ground cover with a rise in the associated risks of soil erosion. Migrating pastoralists have been the scapegoats for this condition of the range. State steppe interventions of the last forty years have reflected this with programs to supplant customary systems with structures and institutions promoting western grazing systems and technologies. Principal amongst the latter has been shrub technology, particularly Atriplex species, for use in land rehabilitation and as a fodder reserve. This paper deconstructs state steppe policy in Syria by examining the overlap and interface of government and customary legal systems as a factor in the history of shrub technology transfer in the Syrian steppe. It is argued that the link made between signs of degradation and perceived moribund customary systems is not at all causal. Indeed, customary systems are found to be adaptive and resilient, and a strong influence on steppe management and the fate of technology transfer initiatives. Furthermore, developments in rangeland ecology raise questions about claims for grazing-induced degradation and call for a reinterpretation of recent shifts in vegetation on the Syrian steppe. Given the ineffectiveness of past state interventions, and in view of renewed understanding of customary systems and rangeland ecology, decentralization and some devolution of formal management responsibility is likely to be a viable and an attractive option for policymakers.

Cu(II) & Ni(II) Complexes with Schiff Bases Derived from 2-Hydroxypropiophenone

750-75

Topographic and electronic contrast of the graphene moir\'e on Ir(111) probed by scanning tunneling microscopy and non-contact atomic force microscopy

Epitaxial graphene grown on transition metal surfaces typically exhibits a moir\'e pattern due to the lattice mismatch between graphene and the underlying metal surface. We use both scanning tunneling microscopy (STM) and atomic force microscopy (AFM) experiments to probe the electronic and topographic contrast of the graphene moir\'e on the Ir(111) surface. While STM topography is influenced by the local density of states close to the Fermi energy and the local tunneling barrier height, AFM is capable of yielding the 'true' surface topography once the background force arising from the van der Waals (vdW) interaction between the tip and the substrate is taken into account. We observe a moir\'e corrugation of 35$\pm$10 pm, where the graphene-Ir(111) distance is the smallest in the areas where the graphene honeycomb is atop the underlying iridium atoms and larger on the fcc or hcp threefold hollow sites.Comment: revised versio

Application of laparoscopy in current fertility practice

Background: The present study is carried out with the objective of establishing the role of diagnostic and operative laparoscopy as a simple, safe and accurate tool in the evaluation of infertility. The aims of current study were to study the application of laparoscopy in current fertility practice, to evaluate indications for diagnostic laparoscopy for infertility, to study findings of diagnostic laparoscopy and to study various operative procedures performed for correction of infertility.Methods: This is a prospective study of 50 women undergoing infertility workup in a private hospital from January 2011 to January 2012. All infertile women having primary or secondary infertility were included in the study. Couples having male factor infertility were excluded from the study. Data were collected and analyzed.Results: Our study is conducted in 50 cases of infertility patients out of which 74% were primary infertility and 26% were secondary infertility. Uterine factors were found in 16% of cases, tubal factors were found in 44% of cases, ovarian factors were implicated in 30% of cases out of which majority (12%) had PCOD. Among the peritoneal factors (18%) endometriosis and pelvic adhesions were found in 6% each. Inspite of thorough laparoscopic evaluation no cause (unexplained infertility) was found in 14% of cases and hence overall, the pelvic pathology was found in 86% of cases.Conclusions: Laparoscopy is the gold standard for diagnosing tubal and peritoneal disease, endometriosis, adhesions and other pelvic pathology, because no other imaging technique provides the same degree of sensitivity and specificity

Study of 50 cases of modern management of ectopic pregnancy

Background: In recent years, an increased incidence of ectopic gestation has been noted, which can be attributed to different reasons. Cases with ectopic gestation were studied and objectives were to study the incidence in various age groups, to study predisposing factors, to study different modes of clinical presentation, to study different sites of ectopic pregnancy and to study changing trends of modern management from radical surgical method to laparoscopic and medical management.Methods: A study of 50 cases of tubal ectopic pregnancy was carried out from May 2009 to June 2011 in tertiary health centre. Patients managed with following treatment modalities were selected for study. (1) Medical management (MTX), (2) Laparoscopic management: salpingostomy, salpingectomy, (3) Laparotomy management: salpingostomy, segmental resection, fimbrial expression, salpingectomy.Results: Lower abdominal pain was most common presenting symptom of ectopic pregnancy in 96% cases. The classical triad of symptoms (amenorrhea, abdominal pain and vaginal bleeding) was present in only 28% cases. PID contributed 24% cases and previous abortion contributed 28% cases indicating these two as the common risk factors. Ampulla was the commonest site for ectopic pregnancy, in 52% cases. Salpingostomy performed mainly at this site. In 6% cases ectopic pregnancy in infundibulum were treated with fimbrial expression and fimbriectomy. 22% patients were managed medically (methotraxte). These were the cases having unruptured ectopic pregnancy and ectopic mass <4 cm. Laparoscopy was done in 34% cases, in 2 cases it was converted to laparotomy. While open laparotomy was done in 40% cases.Conclusions: Ectopic pregnancy is a treatable problem. Ultrasonography plays central role in the diagnosis and management. Mode of therapy is determined by a combination of clinical symptoms, sonography findings and serum b-HCG values. Surgical management is still a cornerstone of management of ectopic pregnancy. But now scope of medical and laparoscopic management is also there. In recent years laparotomy has been replaced by laparoscopic surgery which is more conservative, minimally invasive and less time consuming which leads to quick recovery

Identification of Novel Genomic Islands in Liverpool Epidemic Strain of Pseudomonas aeruginosa Using Segmentation and Clustering

This article utilizes a recursive segmentation and cluster procedure presented as a genome-mining tool, GEMINI, to decipher genomic islands and understand their contributions to the evolution of virulence and antibiotic resistance in Pseudomonas aeruginosa

HEAVY METAL ANALYSIS OF RAW KASEESA BY INDUCTIVELY COUPLED PLASMA (ICP)

Due to global recognition of Ayurveda formulations, the herbo mineral formulations of Ayurveda are questioned because of heavy metal contents found in many studies. Kaseesa (green vitriol) chemically known as ferrous sulphate which is a well known mineral used in various formulations as haematinic and emmenagogue was studied for standardization before making one of its formulation. Raw Kaseesa was analyzed for heavy metals using sophisticated method of Inductively Coupled plasma and was found that it contained metals lead and copper outside permissible limit of pharmacopeia norms.For this study various samples were collected and evaluated by the Rasashastra experts and later by Ayurvedic Pharmacopoeial methods. After the confirm identity, the samples were selected for the Heavy Metal Analysis. Inductively Coupled Plasma (ICP) method used for this study and results found in raw Kaseesa are Copper 7.2153 ppm, Lead 1288.0 ppm and Mercury, Arsenic, Cadmium were not detected. The authors recommend further study of Kaseesa after its Shodhana and other processes to study whether such heavy metal (Cadmium, Lead, Arsenic, Mercury and copper) contents are found in the finished product

A case of telescoping of bowel during sailing

Intussusceptions as an entity is more common in children than adults in whom it is almost always secondary to some associated pathology. Moreover, the presentation is subacute or chronic in nature and all classical features of intussusceptions are rarely present together that makes the diagnosis more challenging. Here we presented a case of ileo-ileal intussusception in an adult male. Obligation of early diagnosis, initial management is unique in such cases. It also focuses on importance of availability of the imaging facilities in management of acute abdomen so as to assist in timely diagnosis as well as the definitive management of intussusceptions.