Minimum Cost Arborescences

In this paper, we analyze the cost allocation problem when a group of agents or nodes have to be connected to a source, and where the cost matrix describing the cost of connecting each pair of agents is not necessarily symmetric, thus extending the well-studied problem of minimum cost spanning tree games, where the costs are assumed to be symmetric. The focus is on rules which satisfy axioms representing incentive and fairness properties. We show that while some results are similar, there are also signifcant differences between the frameworks corresponding to symmetric and asymmetric cost matrices.directed networks ; cost allocation ; core stability ; continuity ; cost monotonicity

Minimum cost arborescences

In this paper, we analyze the cost allocation problem when a group of agents or nodes have to be connected to a source, and where the cost matrix describing the cost of connecting each pair of agents is not necessarily symmetric, thus extending the well-studied problem of minimum cost spanning tree games, where the costs are assumed to be symmetric. The focus is on rules which satisfy axioms representing incentive and fairness properties. We show that while some results are similar, there are also signilcant dikerences between the frameworks corresponding to symmetric and asymmetric cost matrices.directed networks, cost allocation, core stability, continuity, cost monotonicity

Simulation in Military Training: Recent Developments

Training is considered to be one of the key factors in achieving military goal. Growing concernover the increasing training costs, time, risk of life and paucity of training ranges has forced peopleto adopt newer technologies like computer simulation models, simulators and computer wargamesin military training. With the advancement of computer and communication technologies along withthe advent of other newer technologies, these tools have emerged effective and also havesignificantly less operational cost. It is also becoming possible to integrate simulators, simulationand live exercise through networking, resulting into an effective training tool. This paper highlightsthe advancement of simulation technology in military training and also highlights its applications inIndia

Probabilistic Analysis of Anti-ship Missile Defence Effectiveness

Effective missile defence systems are primary requirement for naval ships to counter lethal anti-ship cruise missile attacks in today’s naval warfare scenario. Anti-ship ballistic missiles would further add worry to ship missile defence. The paper discusses a probabilistic analysis of missile defence system effectiveness by considering a simple scenario of a single ship defence with multiple interceptors against a single non-maneuvering missile attack. The ship’s interceptor hard kill lethality is taken as the measures of effectiveness in the analysis. The paper discusses effect of different firing policies, multi-sensor and layered defence to achieve maximum ship survivability.Defence Science Journal, 2014, 64(2), pp. 123-129. DOI: http://dx.doi.org/10.14429/dsj.64.353

Minimum cost arborescences

In this paper, we analyze the cost allocation problem when a group of agents or nodes have to be connected to a source, and where the cost matrix describing the cost of connecting each pair of agents is not necessarily symmetric, thus extending the well-studied problem of minimum cost spanning tree games, where the costs are assumed to be symmetric. The focus is on rules which satisfy axioms representing incentive and fairness properties. We show that while some results are similar, there are also signifcant differences between the frameworks corresponding to symmetric and asymmetric cost matrices

Fuzzy Decision Aid for Technology Evaluation

Fuzzy set theory offers a possibility of handling the data and information involving thesubjective characteristics of human nature in decision-making process, which is mostly true inthe real-world. This paper presents a fuzzy decision theory method to evaluate the potential ofproject proposals submitted for final approval of corporate decision makers in any research anddevelopment organisation

Nonlinearity of Competition-Stability Nexus: Evidence from Bangladesh

Financial deregulation since the 1980s has been stimulating fierce competition among banks and influencing financial stability across the world. In pace with this, Bangladesh’s banking industry is also experiencing intense competition since it is composed of many banks. Te empirical evidence on competition and stability widely debate to date, perhaps for not considering the potential nonlinearity. Therefore, our study aims to explore the nonlinear impact of competition on the financial stability of Bangladeshi banks over 2010-2017. For achieving this objective, we compute the Boone indicator and Z-score using bank-level data to measure competition and stability, respectively, and examine the nonlinear dynamics of competition-stability nexus employing threshold analysis in a panel setup. Our findings confirm that the competition-stability relationship is nonlinear and implies that financial stability is more substantial (weaker) in a less (more) competitive market. Our results bear specific policy implications

Comparison of clinical outcomes in clomiphene citrate resistant infertile polycystic ovarian syndrome women after treatment with laparoscopic ovarian drilling (LOD) versus gonadotropins

Background: Infertility is the inability of a sexually active, non-contracepting couple to achieve pregnancy in one year. Objective of present study was to compare the clinical outcome of laparoscopic ovarian drilling with gonadotropin ovulation induction in patients with clomiphene resistant Polycystic Ovarian Syndrome.Methods: Present study was a comparative interventional study conducted at the Institute of Obstetrics and Gynaecology, Sir Ganga Ram Hospital, New Delhi for a period of one and a half year. We enrolled 40 clomiphene citrate resistant infertile PCOS women who were undergoing treatment for infertility, after taking written informed consent. The women were randomly divided into two equal groups: one for LOD (laparoscopic ovarian drilling) (group A) and other for gonadotropins (group B).Results: Out of 20, 16 women (80%) in group A ovulated with clomiphene citrate and 18 women (90%) ovulated in group B. Pregnancy was the second major outcome and 4 women (20%) in group A with clomiphene citrate got pregnant and 9 women (45%) got pregnant in group B.Conclusions: Out of 20, 16 women (80%) in group A ovulated with clomiphene citrate and 18 women (90%) ovulated in group B. Pregnancy was the second major outcome and 4 women (20%) in group A with clomiphene citrate got pregnant and 9 women (45%) got pregnant in group B. The treatment option can be selected and tailored according to the individual needs and desires of the patient