Secondary cluster headache and numb chin syndrome as initial manifestation of high-grade B-lymphoma: a case report

Abstract Background Cluster headache is a primary condition characterized by severe headache accompanied by trigeminal autonomic signs.By definition, it is Greeting Card not attributed to underlying etiologies; however, under certain clinical characteristics, secondary etiologies must be ruled out.Case presentation We present the case of a 48-year-

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Water Flow in Soils with Heterogeneous Macropore Geometries

Heterogeneous macroporous geometries (HMGs) comprise unevenly distributed macropores with depth.A large variety of macropore distributions produce fast water flow and chemical transport that deviate from uniform flow.We analyzed the measured pressure head and outflow in column experiments with a uniform matrix (Exp.I), one central macropore (main b

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Factors affecting hand hygiene practice during the COVID-19 pandemic in the Zimbabwean population: a qualitative study

Abstract Background Practicing hand hygiene is recommended as one of the key preventive measures for reducing the transmission of COVID-19 and other infectious agents.However, it is often not practiced frequently enough or correctly by the public.We aimed to identify barriers to and facilitators of hand hygiene in the Zimbabwean population during t

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