Given a graph, does there exist an orientation of the edges such that the resulting directed graph is strongly connected? Robbins’ theorem [Robbins, Am. Math. Monthly, 1939] states that such an orientation exists if and only if the graph is 2-edge connected. A natural extension of this problem is the following: Suppose that the edges of the graph is partitioned into trails. Can we orient the tr...

Although many techniques have been proposed for power reduction in fieldprogrammable devices (FPDs), they are all based on conventional logic elements (LEs). In the conventional LE, the output of the combinational logic (e.g. the lookup table (LUT) in many FPGAs) is connected to the input of the storage element; while the D flip-flop (DFF) is always clocked even when it is not necessary. Such u...

Background: This study was conducted in the Penipe canton, Chimborazo province, Ecuador, Objetive: is characterizing and classifying local family agriculture production systems. Methodology: The researchers worked with a total of 1,055 families, from which they extracted sample (n=68) to conduct on geographical location, zoning, survey interview, included technical, socioeconomic, productive, e...

En Mexico, el maíz es considerado cultivo más importante, 88% sembrado de blanco, 11% amarillo y 1% color, los maíces azules o morados son ricos por sus propiedades nutrimentales al contener antocianinas caracterizándoles como especiales para consumo humano. El objetivo esta investigación fue estimar índices selección utilizando caracteres agronómicos químicos en híbridos morado sur Sonora, se ...

Cracks can be important performance indicators for determining damage processes in new and existing concrete structures. In recent years, deep convolutional neural networks (CNNs) have shown great potential automatic crack detection segmentation. However, most of the current CNNs tend to lose high-resolution details and, therefore, lead blurry object boundaries; this results poor images with co...

The motion of a particle near the RN black hole horizon is described by conformal mechanics. Models of this type have no ground state with vanishing energy. This problem was resolved in past by a redefinition of the Hamiltonian which breaks translational time invariance but gives a normalizable ground state. We show that this change of the Hamiltonian is a quantum mechanical equivalent of the c...

morphological and biochemical changes such as cell shrinkage, membrane blebbing, phosphatidylserine (PS) externalization, the potential loss of the mitochondrial membrane, poly (ADP-ribose) polymerase (PARP) cleavage, chromatin condensation and genomic DNA fragmentation. External stimulation may induce apoptosis as well as necrosis. These two types of cell death can be distinguished from each o...

Extensive epidemiological studies have established the association between exposure to early-life adversity and health status diseases in adults. Epigenetic regulation is considered as a key mediator for this phenomenon but analysis on humans sparse. The Great Chinese Famine lasting from 1958 1961 natural string of disasters offering precious opportunity elucidating underlying epigenetic mechan...