This experiment investigated the accuracy with which the location of a probe tip relative to the tympanic membrane can be estimated by means of standing waves. The ear canal length of each ear of six adult subjects was measured with a probe tube using a tactile method. A 6-kHz warble tone was then generated, and the position of the standing wave notch in the ear canal was determined using a pro...

The level of the attenuation is strongly affected by the amount of leakage. The leakage through an earplug is traditionally divided into three parts; sound propagation between the earplug and the ear canal wall, vibration of the earplug and sound propagation through the material. The last leakage path is usually much less efficient than the two others. Simple models of these leakage paths can b...

soil salinity poses considerable and increasing problems for agriculture, and is receiving much attention from plant breeders. the identification of genes whose expression enables plants to adapt to and/or tolerate salt stress is essential for breeding programs, but little is known about the genetic mechanisms of traits in saline conditions. the data obtained from 75 families produced by crossi...

Characterization of Black Bengal bucks and does was performed in this study. A total of 50 goats of different aged were studied. The experiment was performed in Black Bengal bucks and does at 1 day and at 3, 6, 9 and 12 months of age for measuring different parameters such as body length, heart girth, wither height, hip height, fore and hind leg length, head length and width, head length and wi...

Purpose: To develop Brazilian Portuguese Dichotic Sentence List Test, check its applicability and propose an application protocol for auditory processing assessment. Methods: The lists of sentences were taken from the original material, analyzed in detailed and adapted to form the new test. To compose pairs of sentences with as much of the same duration as possible, the duration of each sentenc...

Background . Lodging resistance of winter rye is associated with morphological features the stem. Searching for source material to breed non-lodging high-yielding cultivars requires studying varietal phenotypic diversity according characters stem that affect lodging and productivity ear. Materials methods Experiments were carried out in 2017–2020 at Federal Agricultural Research Center North-Ea...

Place based frequency discrimination (tonotopy) is a fundamental property of the coiled mammalian cochlea. Sound vibrations mechanically conducted to the hearing organ manifest themselves into slow moving waves that travel along the length of the organ, also referred to as traveling waves. These traveling waves form the basis of the tonotopic frequency representation in the inner ear of mammals...

Mutation breeding has evolved as an efficient tool for creating novel variability. Induced mutagenesis is the method of treating base material only once, whereas recurrent involves subjecting first generation (M1) to another dose mutagen extensive spectrum genetic variations in population. Path coefficient analysis induced and irradiated population measures strength relationship between yield a...

Soil salinity poses considerable and increasing problems for agriculture, and is receiving much attention from plant breeders. The identification of genes whose expression enables plants to adapt to and/or tolerate salt stress is essential for breeding programs, but little is known about the genetic mechanisms of traits in saline conditions. The data obtained from 75 families produced by crossi...