Marketing strategy implementation and value proposition in the mindsets of multinational company subsidiaries.

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Marketing strategy implementation and value proposition in the mindsets of multinational company subsidiaries.

El objetivo que oriento la presente investigación fue establecer el nivel de desempeño directivo en el Instituto de Educación Superior Tecnológico Público “Alto Mayo”, Moyobamba, 2018. Entonces, se realizó un estudio de tipo no experimental, con enfoque cuantitativo a nivel descriptivo, con una muestra no probabilística, seleccionada de manera intencional o por conveniencia, conformada por 72 integrantes de la comunidad educativa; a quienes se aplicó un cuestionario para recabar información sobre el desempeño del director. Los resultados reflejan que el desempeño del director en promedio es calificado por el 40% de apreciaciones como bueno y un 36% considera que es aceptable; es decir, según la opinión de los estudiantes, personal administrativo y docente, el director tiene capacidad técnica deficiente (50%), establece buenas relaciones humanas internas y externas (63%) y presenta un aceptable manejo organizacional (47%). Por tanto, se concluye que, el desempeño directivo en el Instituto de Educación Superior Tecnológico Público “Alto Mayo” provincia de Moyobamba, región San Martín – 2018; es calificado como bueno, según el 40% de apreciaciones del personal docente, administrativo y estudiantes; es decir, el desempeño del director es predominantemente bueno y regular reflejada en su capacidad técnica, las relaciones humanas y el manejo organizacional

Advances in the field of bone conduction hearing implants

The number of marketed bone-conduction hearing implants (BCHIs) has been steadily growing, with multiple percutaneous devices and transcutaneous devices now available. However, studies assessing efficacy often have small sample sizes and employ different assessment methodologies. Thus, there is a paucity of evidence to guide clinicians to the most appropriate device for each patient. This paper outlines audiological guidelines for the latest devices, as well as research from the most up-to-date clinical trials. We also outline the evidence base for some potentially contentious issues in the field of bone conduction, including bilateral fitting of BCHIs in those with bilateral conductive hearing loss as well as the use of BCHIs in single-sided deafness (SSD). Bilateral fitting of BCHIs have been found to significantly increase the hearing thresholds in quiet and improve sound localization, but to give limited benefits in background noise. Studies conducted via multiple assessment questionnaires have found strong evidence of subjective benefits for the use of BCHIs in SSD. However, there is little objective evidence of benefit for SSD patients from sound localization and speech in noise tests

Speech intelligibility prediction in reverberation: Towards an integrated model of speech transmission, spatial unmasking, and binaural de-reverberation

Room acoustic indicators of intelligibility have focused on the effects of temporal smearing of speech by reverberation and masking by diffuse ambient noise. In the presence of a discrete noise source, these indicators neglect the binaural listener's ability to separate target speech from noise. Lavandier and Culling [(2010). J. Acoust. Soc. Am. 127, 387–399] proposed a model that incorporates this ability but neglects the temporal smearing of speech, so that predictions hold for near-field targets. An extended model based on useful-to-detrimental (U/D) ratios is presented here that accounts for temporal smearing, spatial unmasking, and binaural de-reverberation in reverberant environments. The influence of the model parameters was tested by comparing the model predictions with speech reception thresholds measured in three experiments from the literature. Accurate predictions were obtained by adjusting the parameters to each room. Room-independent parameters did not lead to similar performances, suggesting that a single U/D model cannot be generalized to any room. Despite this limitation, the model framework allows to propose a unified interpretation of spatial unmasking, temporal smearing, and binaural de-reverberation. I. INTROD

Reverberation limits the release from informational masking obtained in the harmonic and binaural domains

A difference in fundamental frequency (ΔF0) and a difference in spatial location (ΔSL) are two cues known to provide masking releases when multiple speakers talk at once in a room. Situations were examined in which reverberation should have no effect on the mechanisms underlying the release from energetic masking produced by these two cues. Speech reception thresholds using both unpredictable target sentences and the coordinate response measure followed a similar pattern. Both ΔF0s and ΔSLs provided masking releases in the presence of non-speech maskers (matched in excitation pattern and temporal envelope to speech maskers) which, as intended, were robust to reverberation. Larger masking releases were obtained for speech maskers, but critically, they were affected by reverberation. The results suggest that reverberation either limits the amount of informational masking there is to begin with, or affects its release by ΔF0s or ΔSLs