Rage Abubuwan Guraguwa don Ganin Ƙananan Yanayi
Mutanen da ba su da hasara mai saurin mita ba za su iya jin sauti ba a cikin ƙananan ƙananan, kamar su sauti kamar haruffa s, h da f. Wannan zai sa ya fi wuyar fahimtar magana.
A kan audiogram , ƙwararrun suna daga ƙananan zuwa ƙananan maɗaukaki. Ma'anar babban mita ya bambanta. Wasu masana sunyi la'akari da 2000 Hertz (2kHz) don zama babban mita.
Hakanan mai girma ya wuce 2000 Hertz zuwa 8000 Hertz. (1000 Hz an dauke su a tsakiyar mita.)
Bayani
Wani asarar murya mai tsawo zai shafar ikon mutum don fahimtar magana. Wannan yana faruwa ne saboda masu amfani (s, h, f) sune sauti masu yawan mita waɗanda suka kasance daga 1,500 zuwa 6,000 Hertz. Rashin ji a cikin waɗannan ƙananan na nufin cewa waɗannan sauti sunfi ƙarfin ganewa. Ga yara, wannan yana iya haifar da tasiri a kan ilimin su saboda rashin iya fahimtar magana a cikin aji.
Risk Level
A kokarin gano yawancin mutane suna da irin wannan lalacewar ji , masu bincike sun kwatanta bayanai daga Nazarin Nazarin Lafiya ta Gargajiya na 1959-1962 zuwa bayanai daga binciken Nazarin Lafiya na Nutrition na Nutritional da Gina Gida ta 1999-2004. Yin amfani da bincike na lissafi, sun gano cewa tsofaffi a cikin kwanan nan kwanan nan ya fi jin dadi idan aka kwatanta da manya a cikin binciken tsofaffi.
A cikin nazarin matasa, masu bincike sun kwatanta bayanan da aka gano daga binciken binciken nazarin lafiyar lafiyar na uku (NHANES) na 1988 zuwa 1994, zuwa bayanai daga binciken binciken NHANES 2005-2006.
Dukan mahalarta sun kasance shekaru 12 zuwa 19.
Masu binciken sun gano cewa daga shekarar 2005 zuwa 2006, raguwa ta kasa da kasa ya kasance mafi yawanci kuma yawancin lalata sauraron ya fi yawa a tsakanin matasa fiye da idan aka kwatanta da matasa masu karatu a karshen shekarun 1980 da farkon 90s. (Masu bincike sun nuna mita mita 3000 zuwa 8000 Hertz.) Rashin yawan asarar murya mai tsawo shine kawai kashi 12.8 cikin dari na farko; amma daga 2005 zuwa 2006, kashi 16.4 cikin 100 ne.
Wannan bincike ya kasance "mafi girma" daga masu bincike.
A cikin binciken su, masu binciken basu sami bambanci a matakan da suka shafi tashe-tashen hankula a tsakanin binciken biyu ba amma sun nuna cewa matasa suna nuna rashin amincewa da rashin fahimtar matsayinsu na rikici. Sabili da haka, tsalle a cikin mummunar sauraron mota a tsakanin matasa zai iya zama alamar ƙara karuwa a ɗakin murya, yana haifar da asarar muryar motsa jiki .
Dalilin
Batu ba shine kawai dalilin rashin asarar ji ba. Akwai dalilai masu yawa. Hanyoyi sun haɗa da tsufa (cututtuka), jinsin kwayoyin halitta, maganin kwayoyi (irin su maganin cututtuka), da cututtuka da kuma cututtuka. Akwai kuma abubuwan da ake zargi da cutar irin su ciwon sukari.
Rigakafin
Akwai hanyoyi don hana hasara mai karɓa na mita mai tsawo. Mutane da ke damuwa game da hadarin sunyi la'akari da hanyoyi daban-daban na kare kariya, irin su earplugs.
Gudanarwa
Masu sauraro zasu iya ɗaukar sauti masu ƙarfin maɗaukaki kuma ƙananan su. Akwai hanyoyi guda biyu don yin wannan. Hanya na farko, wanda ake kira karfin motsa jiki, yana ɗaukar ƙarfin hawan ƙarfin haɗari kuma yana motsa su zuwa ƙananan mita, wanda zai haifar da haɗuwa da sauti (motsawa) da sauti marar sauƙi.
Hanya ta dabam, wanda ake kira jujjuya ta mita, tana amfani da ragowar matsawa a kan sauti mai tsayi don rage shi, amma baya motsa shi, saboda haka guje wa haɗuwa da ƙananan ƙananan. Idan ka gaskanta kana fuskantar lalacewa na ji irin wannan, ganin mai jin murji ne mai mahimmanci.
Jiyya
Ana iya gudanar da asarar sauti mai tsawo ta amfani da kayan ji da kuma kwaskwarima . Ko shakka, ƙwarewar ilmantarwa da ƙwarewar rubutu za ta iya taimakawa.
Sources:
Ambasadawa suna sauraron ko sun fi kyau a yau da aka kwatanta da shekaru 40 na karni: matsayi na sauraren jinƙai a cikin ƙididdigar balagagge balagar Amurka, 1959-1962 da 1999-2004. Kunni da Ji. Disamba 2010 - Ƙari na 31 - Fitowa 6 - shafi na 725-734
Dalili na Ƙarfafawa: Sauran Lafiya. Cibiyoyin Kula da Cututtuka da Cututtuka. http://www.cdc.gov/ncbddd/dd/hi2.htm
Glista, Danielle MSc; Susan Scollie, PhD; Melissa Polonenko, MCISc; da Yakubu Sulkers, BA. Haɗuwa da Ayyuka a Yara tare da Ƙunƙirar Yanayin Ƙaddanci. Sauran Watsawa. Nuwamba 2009.
Shargorodsky, Josef, Sharon G. Curhan, Gary C. Curhan, Roland Eavey. Canja a cikin Yanayin Harshen Sanyakon Sauro a Matasan Amurka JAMA. 2010; 304 (7): 772-778.
Simpson, A. Ayyukan ƙaddamarwa don ƙayyadaddadden hasara mai yawa: wani review.Trends in Amplification. 2009 Yuni; 13 (2): 87-106.