Upper airway unidirectional breathing, nose in and mouth out, is used by panting dogs to facilitate heat removal via water evaporation from the respiratory system. Why some humans instinctively employ the same breathing pattern during respiratory distress is still open to question. We hypothesized that 1) humans unconsciously perform unidirectional breathing because it improves breathing effici...

A partir de la teoría del desarrollo económico, en este artículo se analiza propuesta “circulación dual” nuevo modelo económico chino, sugerido para formulación XIV Plan Desarrollo Económico y Social 2021-2025. El trabajo realiza desde una doble perspectiva: retrospectiva que es revisión statu quo evolución económica china hace 40 años; prospectiva, cómo guerra comercial con Estados Unidos Covi...

Lasioglossum is a large genus of halictid bees with high species diversity in morphologically rather cryptic groups. With more than 1900 described species, the taxonomy complex and largely unresolved many regions. For practical reasons, systematic reviews are restricted scope either geographically or to particular In this study we focus on subgenus Dialictus from Yucatán Peninsula Mexico. previ...

background: volatile organic compounds (vocs), including carcinogens and toxic compounds, are produced in petrochemical industries. we undertook this study in order to study workers’ respiratory exposure to different voc concentrations and compare the results with the urinary levels of its metabolites and study the correlation between them in petrochemical industries. materials and methods: exp...

Our study set out to determine the acoustic markedness and potential communicative function of two types of silent pauses that differ in terms of speakers‘ breathing behaviour: (1) pauses with sustained breathing (breathing pauses), and (2) pauses with breath-holds (non-breathing pauses). Our first hypothesis postulates the existence of an articulatory reset in case of a breathing pause and an ...

This study was designed to test whether awareness of the measurement of breathing influences the breathing pattern in healthy subjects under routine laboratory conditions. Seventy four subjects (40 females and 34 males), aged 21-63 yrs, were studied under three different conditions whilst their breathing was being recorded for 5 min by means of inductance plethysmography (Respitrace): 1) subjec...

El propósito en este artículo es mostrar que, a pesar del juicio lapidario de algunos estudiosos las últimas décadas respecto interés filosófico bizantino Miguel Éfeso, posible encontrar aspectos relevantes sus lecturas e interpretaciones Aristóteles. Argumentaré que el comentario al De motu animalium merece ser tratado seriamente. En la medida veces emplea un modelo conceptual estoico para exp...

Recent editorials in BMJ by a number of authors has motivated me to publish the results of research into babies’ breathing that myself and the late Leif Karlsson (a Swedish biomedical electronics engineer living in Australia) conducted with Cotwatch breathing monitor, developed by Leif at my suggestion in 1985/86. Leif died in 1994 and the Cotwatch breathing monitor died with him: I had it deli...