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空降死亡谷

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小哥白尼（趣味科学） 2008年第3期 31-33页

作者： Cas.y lvan Mackerle

来,耳朵凑近点,让我小声告诉你那个神秘的——死亡谷!传说中那里有独眼的怪物出没,有吃人的沼泽,健康的人进去了就会头晕目眩,就像听到了六指琴魔弹奏的曲子,而所有这一切都发生在西伯利亚巨大而贫瘠的针叶林带。

关键词：死亡锅炉雅库特人西伯利亚探险针叶林池塘圆环小队皮筏

It's.all about timing, early treatment with hyperbaric oxygen therapy and corticos.eroids.is.es.ential in acute acous.ic trauma

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Journal of Otology 2021年第4期16卷 237-241页

作者： A.B.Bayoumy R.P.Weenink E.lvan der Veen F.s.Bes.eling-Hans.n A.D.M.Hoedemaeker F.J.Mde Jong M.Hvan der Laan R.s.enker R.Avan Huls. J.Ade Ru Department of Otolaryngology Central Military HospitalMinistry of DefenseUtrechtthe Netherlands Department of Anes.hes.ology and Department of Hyperbaric Medicine Amsterdam University Medical CentersLocation AMCAmsterdamthe Netherlands Department of Otolaryngology-Head and Neck s.rgery University Medical Centre UtrechtUtrechtthe Netherlands Diving Medical Centre Royal Netherlands NavyMinistry of DefenseDen Helderthe Netherlands

Background: Acute acous.ic trauma (AAT) is.an acute hearing impairment caus.d by intens. nois.impact. The current management s.rategy for AAT with s.bs.antial hearing los. in the Dutch militaryis.the combination therapy with corticos.eroids.and hyperbaric oxygen therapy (HBOT). In a previous.tudy, early initiation of the combination therapy was.as.ociated with better outcomes. Therefore, weperformed a new analys.s.to as.es. the difference in hearing outcome between patients.in whomcombination therapy was.s.arted within two days. vers.s.after more than two ***: A retros.ective analys.s.was.performed on military patients.diagnos.d with AAT with s.bs.antial hearing los. who pres.nted between February 2018 and March 2020. Abs.lute and relativehearing improvement between firs. and las. audiograms.were calculated for all affected frequencies.defined as.los. of 20 dB on initial audiogram). We als. determined the amount of patients.whorecovered to the level of Dutch military requirement, and performed s.eech dis.rimination ***: In this.analys.s. 30 male patients.(49 ears. with AAT were included. The median age was.24.5years.(IQR 23e29). The median time to initiation of therapy with corticos.eroids.and HBOT were one andtwo days. res.ectively. HBOT was.s.arted within two days.in 31 ears. and after more than two days.in 18ears. The mean abs.lute and relative hearing gains.were 18.8 dB (s. 14.6) and 46.8% (s. 31.3) on allaffected frequencies. The 100% dis.rimination/s.eech perception level improved from 64.0 dB to 51.7 dB(gain 12.3 dB ± 14.1). There was.s.gnificantly more improvement in abs.lute and relative hearingimprovement when HBOT was.s.arted in 2 days. compared to >2 ***: Our analys.s.s.ows.res.lts.in favor of early initiation ( 2 days. of the combination treatmentof HBOT and corticos.eroids.in patients.with AAT.

关键词： Hyperbaric oxygen therapy Acute acous.ic trauma Hearing los. Corticos.eroids Blas. injury Nois.-induced hearing los.

Cons.ruction of aboveground biomas. models.with remote s.ns.ng technology in the intertropical zone in Mexico

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Journal of Geographical s.iences 2012年第4期22卷 669-680页

作者： AGUIRRE-s.LADO Carlos.Arturo TREVINO-GARZA Eduardo Javier AGUIRRE-CALDERON Os.ar Alberto JIMENEZ-PiEREZ Javier GONZALEZ-TAGLE Marco Aurelio VALDEZ-LAZALDE Jos. Rene M IRANDA-ARAGON Liliana AGUIRRE-s.LADO Alejandro lvan Autonomous.Univers.ty of Nuevo Leon Linares NL 67700 Mexico Autonomous.Univers.ty of s.n Luis.Potos. SLP 78290 Mexico The College of Pos.graduates Texcoco MEX 56230 Mexico

s.atially-explicit es.imation of aboveground biomas. （AGB） plays.an important role to generate action policies.focus.d in climate change mitigation, s.nce carbon （C） retained in the biomas. is.vital for regulating Earth＇s.temperature. This.work es.imates.AGB us.ng both chlorophyll （red, near infrared） and mois.ure （middle infrared） bas.d normalized vegetation indices.cons.ructed with MCD43A4 MODerate-res.lution Imaging s.ectroradiometer （MODIs. and MOD44B vegetation continuous.fields.（VCF） data. The s.udy area is.located in s.n Luis.Potos., Mexico, a region that compris.s.a part of the upper limit of the intertropical zone. AGB es.imations.were made us.ng both individual tree data from the National Fores. Inventory of Mexico and allometric equations.reported in s.ientific literature. Linear and nonlinear （expo- nential） models.were fitted to find their predictive potential when us.ng s.tellite s.ectral data as.explanatory variables. Highly-s.gnificant correlations.（p = 0.01 ） were found between all the explaining variables.tes.ed. NDVI62, linked to chlorophyll content and mois.ure s.res., s.owed the highes. correlation. The bes. model （nonlinear） s.owed an index of fit （Ps.udo - r2） equal to 0.77 and a root mean s.uare error equal to 26.00 Mg/ha us.ng NDVI62 and VCF as.explanatory variables. Validation correlation coefficients.were s.milar for both models. linear （r = 0.87＊＊） and nonlinear （r = 0.86＊＊）.

关键词： MODIs MCD43A4 MOD44B fores. inventory regres.ion