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In this paper, we show that in the best-known version of the blocks world (and several related versions), planning is difficult, in the sense that finding an optimal plan is NP-hard. However, the NP-hardness is not due to deleted-condition interactions, but instead due to a situation which we call a deadlock. For problems that do not contain deadlocks,(More)
Although blocks-world planning is well-known, its complexity has not previously been analyzed, and different planning researchers have expressed connicting opinions about its diiculty. In this paper, we present the following results: 1. Finding optimal plans in a well-known formulationof the blocks-world planning domain is NP-hard, even if the goal state is(More)
BACKGROUND Iron deficiency anemia is the most common form of anemia in India. Hemoglobin A1c (HbA1c) is used in diabetic patients as an index of glycemic control reflecting glucose levels of the previous 3 months. Like blood sugar levels, HbA1c levels are also affected by the presence of variant hemoglobins, hemolytic anemias, nutritional anemias, uremia,(More)
The complex relationships between organizational practices have been the focus of information technology business value (ITBV) research in recent years. There appears to be a discernible trend toward a more nuanced view in which the effects of information technology (IT), various organizational practices and their relationships are systematically(More)
A retrospective analysis of 108 cases of primary germ cell tumours of testis seen over a 6 year period at Institute Rotary Cancer Hospital of All India Institute of Medical Sciences, New Delhi is presented. There were 45 (42%) cases of seminoma and 63 (48%) of non-seminomatous germ cell tumours (NSGCT). The median age at presentation was 35 and 30 years(More)
In this paper, a neural network model is proposed which can be used for designing any monopole antenna whose element is square shaped and required to exhibit a wide band characteristics. All the antennas designed using this model shows a wideband response between 4.5 GHz - 5 GHz. This model is prepared using Feed Forward Back Propagation Algorithm. The(More)
Background. Tuberculosis of the liver without active pulmonary or miliary tuberculosis is considered as an uncommon diagnosis. The aim of the present study was to determine the etiological role of tuberculosis in adult patients presenting with features of liver abscess. Methods. A total of 40 patients with liver abscess were included in the study. The liver(More)
BACKGROUND & OBJECTIVES Flow cytometry is an important tool to diagnose acute leukaemia. Attempts are being made to find the minimal number of antibodies for correctly diagnosing acute leukaemia subtypes. The present study was designed to evaluate the analysis of side scatter (SSC) versus CD45 flow dot plot to distinguish acute myeloid leukaemia (AML) from(More)
We present the case of an 18-year-old male patient admitted with complaints of fever and rapid weight loss since 3 months. Patient had multiple umbilicated papular to nodular lesions over chin and forehead region. Complete blood count revealed bicytopenia. An excisional biopsy of the skin lesions had revealed cutaneous histoplasmosis. On further(More)