In the current work, graphene oxide (GO) samples were prepared at room temperature from graphite flakes using a modified Hummer's method to produce metal-free electrocatalysts. The effect of the duration of the oxidation process on the structural, chemical and physical characteristics of the GO samples was evaluated using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), ...

Microbiology Laboratory, Animal Health Division, Central Institute for Research on Goats, Makhdoom, PO– Farah, Mathura (UP); Department of Veterinary Microbiology and Immunology, Pandit Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishvidhyalaya Ewam Go–Anusandhan Sansthan (DUVASU), Mathura (U.P.)–281001; Division of Pathology, Indian Veterinary Research Institute, Izatnagar (IVRI), Bareilly (U.P...

IN T R O D U C T IO N In the C om m onw ealth of Pennsylvania, the m anual repa ir of potholes involves an annual expend itu re exceeding $25 m illion, which is second only to snow rem oval in the m a in tenance budget. P rior to 1980, it was com m on practice for rep a ir crews to practice a “throw an d go” policy, w ith pa tch m ateria l p laced in the potholes w ithout rem oving debris or lo...

D promising reforms following the civil rights movement of the 1960s and continuing through the 1970s, the progress of black men since the early 1980s has been relatively stagnant. The black-white gaps in high school graduation, earnings, and unemployment have improved little over the past 30 years. On some indicators, black men are doing steadily worse: faced with poor employment prospects, le...

This forum builds on the discussion stimulated during an online salon in which authors participated June 25, 2020, entitled “Archaeology Time of Black Lives Matter,” and was cosponsored by Society Archaeologists (SBA), North American Theoretical Archaeology Group (TAG), Columbia Center for Archaeology. The reflected social unrest that gripped United States spring gauged history conditions leadi...