the purpose of this research was socioeconomicanalysis of farms using primary data in two villages of mymensingh sadar. a total of 60 farms including 20 small, 20 medium and 20 large were randomly selected for the study. socioeconomic analysis showed that indebtedness was higher in large farms than those of small and medium ones. large farms also engaged more in farm activities than others. all...

The Quadratic Knapsack Problem (QKP) calls for maximizing a quadratic objective function subject to a knapsack constraint. All coefficients are assumed to be nonnegative and all decision variables are binary. A new exact algorithm is presented, which makes use of aggressive reduction techniques to decrease the size of the instance to a manageable size. A cascade of upper bounds is used for the ...

A shuffle is a permutation and rerandomization of a set of ciphertexts. Among other things, it can be used to construct mix-nets that are used in anonymization protocols and voting schemes. While shuffling is easy, it is hard for an outsider to verify that a shuffle has been performed correctly. We suggest two efficient honest verifier zero-knowledge (HVZK) arguments for correctness of a shuffl...

We present a new meshing algorithm for the plane, Overlay Stitch Meshing (OSM), accepting as input an arbitrary Planar Straight Line Graph and producing a triangulation with all angles smaller than 170◦. The output triangulation has competitive size with any optimal size mesh having equally bounded largest angle. The competitive ratio is O(log(L/s)) where L and s are respectively the largest an...

We have investigated the computational scalability of image pyramid building needed for dissemination of very large image data. The sources of large images include high resolution microscopes and telescopes, remote sensing and airborne imaging, and high resolution scanners. The term ‘‘large’’ is understood from a user perspective which means either larger than a display size or larger than a me...

The overall purpose of the 'Statistical Points and Pitfalls' series is to help readers and researchers alike increase awareness of how to use statistics and why/how we fall into inappropriate choices or interpretations. We hope to help readers understand common misconceptions and give clear guidance on how to avoid common pitfalls by offering simple tips to improve your reporting of quantitativ...

Star-shaped triphthalocyaninehexaazatriphenylene 1 was synthesized via condensation between a new building block 1,2-diaminophthalocyanine and cyclohexanehexaone. Compound 1 represents the largest star-shaped phthalocyanine-fused hexaazatriphenylene reported so far. This largely expanded phthalocyanine shows good solubility and has a strong tendency to aggregate both in solution and on the surf...

Visual illusions tell us that size perception depends heavily upon complex contextual cues, often thought to be extracted by brain areas high in the visual hierarchy. Now, a new study shows that perceived size is reflected in activity as early as the primary visual cortex.

Defect in the ventricular septum with obstruction to right ventricular outflow tract encompass a wide anatomic, physiological and clinical spectrum. Large ventricular septal defects occur with pulmonary stenosis that varies from mild to severe to complete (pulmonary atresia). Very large VSD (size 6.4 cm, in our case) with severe PS is a rare CHD and without surgical correction only 10% patient ...