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What Do Seedlings Like? The Relationship between Seedling Richness and Abundance with Abiotic Factors

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Agricultural Sciences 2023年第6期14卷 767-774页

作者： johnatan Jair de Paula Marchiori Vinicius de Souza Oliveira Eduarda Carriço Ana Clara Bayer Bernabé Anderson Mathias Holtz Ronilda lana Aguiar Ana Beatriz Mamedes Piffer Gilcéa Teixeira Fontana Boone Ricardo Amaro de Sales Lusiane de Sousa Ferreira Department of Environmental Sciences/Phytotechnics Department Federal University Rural of Rio de Janeiro-Seropédica Rio de Janeiro Brazil Center for Agricultural Sciences and Engineering Federal University of Espírito Santo Alegre Espírito Santo Brazil Laboratory of Entomology and Acarology Federal Institute of Espírito Santo Campus Itapina Colatina Espírito Santo Brazil Agriculture Department State University Paulista “Júlio de Mesquita Filho” Botucatu S&#227o Paulo Brazil

Natural regeneration is the interaction of natural processes to restore the forest ecosystem. Its dynamics are influenced by the intensity and extent of a series of abiotic and biotic factors, which may be intrinsic or extrinsic. Knowing the importance of establishing natural regeneration within forest ecosystems, this work aimed to evaluate whether litter depth and trail distance influenced seedling abundance and richness in a forest fragment undergoing natural restoration. The hypothesis tested in this research was that abiotic factors influence the natural regeneration of this forest since they are factors that are directly linked to seed germination and seedling establishment. 30 plots of 1 m2 were randomly analyzed within the forest located on the brown trail. A millimeter ruler was used to diagnose the litter depth and a measuring tape to measure the distance from the plot to the edge. In each plot the seedlings were morpho-specified and each morphospecies had the number of individuals counted. Linear regression tests were performed to assess the relationships between species richness and trail distance and litter depth. The same was done for species abundance. All results showed that there is no relationship pattern between any of the variables. Other factors also influence the regeneration of a forest, such as luminosity and seed bank. Furthermore, litter depth is related to the successional stage of the forest. It was concluded that the abiotic factors tested do not influence the regeneration of the study area.

关键词： Abiotic Factors Natural Regeneration Forest Ecosystem

Photobiomodulation therapy for osteoarthritis: Mechanisms of action

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World journal of Translational Medicine 2022年第3期10卷 29-42页

作者： Fábio Pericinoto Giolo Gabriel Silva Santos Victor Fontes Pacheco Stephany Cares Huber Kaue Franco Malange Bruno Lima Rodrigues Fernanda Bassora Tomas Mosaner Gabriel Azzini Lucas Leite Ribeiro Carlos Amilcar Parada joséFábio Santos Duarte lana Department of Physical Therapy Brazilian Institute of Regenerative MedicineIndaiatuba 13334-170Brazil Biomedical Science Brazilian Institute of Regenerative MedicineIndaiatuba 13334-170Brazil Department of Orthopedics Brazilian Institute of Regenerative MedicineIndaiatuba 13334-170Brazil Neurobiology of Pain and Regenerative Medicine The University of CampinasCampinas 13083-862Brazil Department of Hematology The University of CampinasCampinas 13083-878Brazil

Photobiomodulation(PBM)is a non-invasive therapeutic modality with demonstrated effects in many fields related to regenerative *** the field of orthopedics,in particular,PBM at various wavelengths has demonstrated the capacity to trigger multiple biological effects associated with protective mechanisms in musculoskeletal *** articles cited in this review show that devices operating close to or within the near infrared range at low intensities can provoke responses which favor the shift in the predominant catabolic microenvironment typically seen in degenerative joint diseases,especially osteoarthritis(OA).These responses include proliferation,differentiation and expression of proteins associated with stable cell ***,PBM can also modulate oxidative stress,inflammation and pain by exerting regulatory effects on immune cells and blocking the transmission of pain through sensory neuron fibers,without adverse ***,these effects are essential in order to control the progression of OA,which is in part attributed to exacerbated inflammation and degradative enzymatic reactions which gradually contribute to the destruction of joint *** may offer medical experts ease of application,financial viability,efficacy and lack of serious adverse ***,it may prove to be a suitable ally in the management of mild to moderate degrees of *** review explores and discusses the principal biological mechanisms of PBM and how the produced effects may contribute to the amelioration of osteoarthritic *** was reviewed using PubMed and Google Scholar in order to find studies describing the mechanisms of *** investigation included a combination of nomenclature such as:“photobiomodulation”,“phototherapy”,“laser therapy”,“PBM”,“osteoarthritis”,low level light therapy”,“inflammation”and“cartilage”.We considered only articles written in English,with access to the full text.

关键词： Photobiomodulation Low-level laser therapy Osteoarthritis Inflammation Regenerative medicine

μ-氧-双[meso-四(对烷氧基苯基)卟啉合铝(III)]的合成、表征和液晶性能研究

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有机化学 2007年第6期27卷 778-782页

作者：刘捷频赵鸿斌徐勇军曹华陈科胡羽许兰兰湘潭大学化学学院湘潭411105 东莞理工学院化学生物工程系东莞523808

合成了一系列未见文献报道的μ-氧-双[meso-四(对烷氧基苯基)卟啉合铝(Ⅲ)]配合物.用UV-vis,1H NMR,IR,MS和元素分析对各个化合物的结构进行了表征和确认,发现在该系列配合物中两个卟啉分子通过Al—O—Al键形成二聚体.用差示扫描量热仪(... 详细信息

合成了一系列未见文献报道的μ-氧-双[meso-四(对烷氧基苯基)卟啉合铝(Ⅲ)]配合物.用UV-vis,1H NMR,IR,MS和元素分析对各个化合物的结构进行了表征和确认,发现在该系列配合物中两个卟啉分子通过Al—O—Al键形成二聚体.用差示扫描量热仪(DSC)和偏光显微镜(PM)研究了其液晶性,发现其中九个配合物具有液晶性,多为升温单变液晶,有一至两个中介相,有确定的相转变温度、热焓和相变区间.考察了取代基、金属离子和配合物的空间结构对液晶性能的影响.

关键词：卟啉铝配合物合成表征液晶性

Prevalence and Associated Factors of Back Pain among Medical Students in Sudan

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Health 2022年第9期14卷 931-938页

作者： Shahda Shms Eldeen Khlf Alla Ahmed Ragda Kabashy Mohammed Bahar lana Alsiddig Mohamed Ahmed Aisha Ali Elameen Abbas Eiman Siddig Abd Elhadi Ahmed Ruba Jabir Abdallah Seedahmed Shahd Yousif Hajomer Abdelgader Arwa Ahmed Alhussain Ahmed Khalid Elfadil Ibrahim Husein Faculty of Medicine Omdurman Islamic University Omdurman Sudan Department of Orthopaedics and Traumatology Omdurman Islamic University Omdurman Sudan

Background: Back pain affects old and young adults, and it is a common complain among medical students. Objective: To estimate the prevalence of back pain and associated factors among medical students in Sudan. Method: An observational multi-universal cross-sectional study was conducted from December 2021 to February 2022, involving 433 medical students selected by simple random sampling. Data were collected by electronic Google Form questionnaire designed to assess demographic features, back pain characteristics, and triggering factors. Data analysis was done by statistical package for social sciences. Result: The prevalence of back pain among medical students in Sudan is 69.3%, with a statistically insignificant difference between preclinical and clinical students (p value: 0.378), and between male and female students (p value: 0.826). The lower back is the commonest site of pain (75%). The majority of the students experience moderate pain (53.9%). They did not use medications (81%). Sitting for long hours is the most common trigger (87.9%) and the pain did not interfere with the daily activities (71%). Conclusion: Back pain is a common complain among medical students in Sudan. Medical schools should raise the awareness of the students about back pain.

关键词： Back Pain Medical Students Medical School Sudan

Each Epiphyte on Its Branch: A Comparative Study between Different Phorophytes

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Agricultural Sciences 2023年第5期14卷 636-644页

作者： johnatan Jair De Paula Marchiori Vinicius De Souza Oliveira Eduarda Carriço Ana Clara Bayer Bernabé Anderson Mathias Holtz Ronilda lana Aguiar Ana Beatriz Mamedes Piffer Gilcéa Teixeira Fontana Boone Lusiane De Sousa Ferreira Bruna De Oliveira Magnani Federal University Rural of Rio de Janeiro Seropédica Brazil Center for Agricultural Sciences and Engineering Federal University of Espírito Santo Alegre Brazil Federal Institute of Espírito Santo Campus Itapina Colatina Brazil State University Paulista “Júlio de Mesquita Filho” Botucatu Brazil

Epiphytes are plants that use the mechanical support provided by a host tree, called phorophytes, without emitting haustorial structures. Constituting an important component of the flora, playing an important role in the maintenance of ecosystems, such as water and nutrient cycling, in addition to providing resources, sometimes unique, such as food and shelter, for the canopy fauna. However, the epiphytic flora may show high beta diversity, even when compared with different phorophytes, possibly as a response to the dendromorphological characteristics of the phorophyte. Thus, this work aims to: 1) compare whether the species richness of epiphytes differs in trees with different morphological characteristics, and 2) compare species composition among three tree species. For this, 10 individuals of three tree species were selected: Guaria guidonia, Ficus sp., and Roystonea oleracea. In each individual, the number of species (richness) of vascular epiphytes was recorded and obtained from the species composition. To test differences in richness values between the three trees, we used analysis of variance (ANOVA) followed by Tukey’s test. To understand whether the epiphyte community formed separate groups according to the tree species used, we used the available non-metric multidimensional scaling method (NMDS). Thirty-four species of epiphytes were found in the 30 phorophytes surveyed. The three tree species showed significantly different richness, with the highest found in Guarea guidonea and the lowest in Roystonea oleraceae. The NMDS showed that epiphytes group the three tree species into distinct groups, although Ficus sp individuals present a transitional community between the two other species. Thus, the results suggest that the differences in the richness and composition of the epiphytic flora of the different phorophytes are influenced by their distinct morphological characteristics.

关键词： Atlantic Forest Ecological Reserve Tree Species

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狗其实比我们想象的聪明

黄金时代 2002年第10期 61-61页

作者： lana

新的研究表明，狗实际上比我们大多数人估计的聪明多了。美国加利福尼亚戴维斯大学的科学家坚信：狗不仅能够计数，还能够通过自己吠声的声调和速度清楚传达信息。“以前的动物行为研究者往往认为，狗发出吠声只是为了引起人类或者它的... 详细信息

新的研究表明，狗实际上比我们大多数人估计的聪明多了。美国加利福尼亚戴维斯大学的科学家坚信：狗不仅能够计数，还能够通过自己吠声的声调和速度清楚传达信息。“以前的动物行为研究者往往认为，狗发出吠声只是为了引起人类或者它的同类的注意。现在新的研究证明，狗类用它?（共1页)

关键词：《新科学》

针对性护理对ICU呼吸机相关性肺炎发生率及临床护理满意度的影响

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中国医药科学 2019年第20期9卷 142-144页

作者：程拉娜许一帆广东省阳江市人民医院

目的探讨针对性护理对ICU呼吸机相关性肺炎发生率及临床护理满意度的影响。方法选取2017年8月~2018年8月我院ICU患者60例,随机分为两组:一组常规性护理组(30例),一组针对性护理组(30例),统计分析两组患者的肺功能、呼吸机相关性肺炎发... 详细信息

目的探讨针对性护理对ICU呼吸机相关性肺炎发生率及临床护理满意度的影响。方法选取2017年8月~2018年8月我院ICU患者60例,随机分为两组:一组常规性护理组(30例),一组针对性护理组(30例),统计分析两组患者的肺功能、呼吸机相关性肺炎发生情况、机械通气时间、入住ICU时间、总住院时间、临床护理满意度。结果和治疗前相比,两组患者治疗后的FEV1、FEV1/FVC均显著升高(P<0.05);治疗后和常规性护理组相比,针对性护理组患者的FEV1、FEV1/FVC均显著升高(P<0.05)。针对性护理组患者的呼吸机相关性肺炎发生率10.0%(3/30)显著低于常规性护理组33.3%(10/30),差异有统计学意义(P<0.05),机械通气时间、入住ICU时间、总住院时间均显著短于常规性护理组(P<0.05),临床护理满意度评分显著高于常规性护理组(P<0.05)。结论针对性护理较常规性护理更能有效降低ICU呼吸机相关性肺炎发生率,提升临床护理满意度。

关键词：针对性护理 ICU 呼吸机相关性肺炎临床护理满意度

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BX与赛场3的激情碰撞

大众电脑 2002年第9期 113-113页

作者： lana

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显示器简单故障处理

大众电脑 2002年第8期 111-111页

作者： lana