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Leaf thickness and elevation explain naturalized alien species richness in a tropical mountain forest: A case study from Mount Gede-Pangrango National Park,Indonesia

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Journal of Mountain Science 2021年第7期18卷 1837-1846页

作者： Decky Indrawan JUNAEDI Imawan wahyu hidayat Muhammad EFENDI Zaenal MUTAQIEN Musyarofah ZUHRI Taufikurrahman NASUTION Fitri KURNIAWATI Muhammad Imam SURYA Lily ISMAINI Aisyah HANDAYANI Andes Hamuraby ROZAK Cibodas Botanic Gardens Research Center for Plant Conservation and Botanic Gardens-Indonesian Institute of Sciences(LIPI)Jl.Kebun Raya CibodasCipanas CianjurWest Java 43253Indonesia

Exotic plant invasion is one of the major causes of species *** many contexts,mountainous forests are the last refuge for native *** are several inventory studies conducted in mountainous and tropical forests in ***,there are no studies yet on the factors that explain the abundance and richness of surveyed naturalized alien *** study investigated whether the number of individuals and abundanceweighted species richness(AWR) of naturalized alien plant species in the hiking-trail of Mount GedePangrango National Park(MGPNP) forest area correlated with leaf traits(specific leaf area(SLA) and leaf thickness) and environmental factors(elevation,slope,and normalized difference vegetation index(NDVI)).We showed that leaf thickness and habitat elevation explained the AWR variations of naturalized alien *** did not detect any important effect of leaf traits and environmental factors on the number of individuals per exotic species per *** influence of leaf thickness and habitat elevation indicates the important role of both biotic and abiotic factors on exotic species to develop a high species richness and become an invasive species in the tropical mountain forest ecosystem.

关键词： Invasive species Hiking trail Cibodas Biosphere Reserve Invasion ecology SLA

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Mud Volcano: Revealing the Stratigraphy of Kendeng Basin, Indonesia

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Open Journal of Yangtze Oil and Gas 2022年第1期7卷 48-64页

作者： Ardian Novianto Sutanto Suharsono Carolus Prasetyadi wahyu hidayat Geological Engineering Department UPN “Veteran” Yogyakarta Indonesia Geophysics Engineering Department UPN “Veteran” Yogyakarta Indonesia

The Kendeng Basin, the major depocenter of the East Java Basin, has been filled with deep-sea clastic volcanic deposits since the Middle Tertiary, which developed into volcanic deposits in the Quaternary. With thick Quaternary volcanic deposits covering almost the entire basin, outcrops are only found in the north, forming a fold-thrust belt structure. The oldest known stratigraphic unit is the early Miocene Pelang Formation, which was deposited in the lower to the upper bathyal zone. Rocks older than the Pelang Formation have not been identified in this basin either from outcrops or drill-hole data. However, the geochemical analysis of oil seepage proves to be different because the oil source rock in Kendeng Basin was interpreted to be of older lithology than the Pelang Formation, indicating a potentially older stratigraphic unit in the Kendeng Basin that has not been revealed to date. Mud volcanoes transported rock material from the Kendeng Basin to the surface, uncovering the stratigraphy that has been an enigma. The material in question includes Nummulites limestones, conglomerates, and quartz sandstones. Paleontological analysis results on rock fragments indicate that they belong to the Middle Eocene age, so they are older than the Pelang Formation. Mud volcano also carried younger limestones to the surface identified as Miocene Age (equivalent with the Pelang Formation), which were deposited in a middle neritic environment, so they provided information that shallow areas possibly formed a horst-graben structure during the Miocene in the Kendeng Basin. The appearance of Eocene and Miocene rock fragments can be used to complement the stratigraphy and it also provides a potentially new concept of source-reservoir rock in the Kendeng Basin.

关键词： Mud Volcano Stratigraphy of Kendeng Basin Eosen Sediment

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Neuropathy optic glaucomatosa induced by systemic hypertension through activation endothelin-1 signaling pathway in central retinal artery in rats

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International Journal of Ophthalmology(English edition) 2016年第11期9卷 1568-1577页

作者： Seskoati Prayitnaningsih hidayat Sujuti Maksum Effendi Aulia Abdullah Nanda wahyu Anandita Febriani Yohana Nur Permatasari Mohamad Aris Widodo Department of Ophthalmology Faculty of MedicineBrawijaya University Pharmacology Laboratory Faculty of MedicineBrawijaya University

AIM： To evaluate effect of hypertension on retinal ganglion cell（RGC） apoptosis, intraocular pressure（IOP）,and the activation of endothelin-1（ET-1） signaling pathway in central retinal artery（CRA） in ***： The experimental study was performed on20 male Sprague Dawley rats that were divided into control group, and hypertension groups. The hypertension was induced by subcutaneous deoxycorticoacetate（DOCA）10 mg/kg twice a week and administered 0.9% Na Cl solution daily for 2, 6, and 10 wk. Blood pressure（BP） was measured using animal BP analyzer. IOP was measured by handheld tonometry. Retinal tissue preparations by paraffin blocks were made after enucleation. The expression of ET-1, e NOS, ET-1 receptor A（ETRA）, ET-1receptor B（ETRB）, and phosphorylated myosin light chain kinase（MLCK）, and caldesmon（Ca D） in CRA and RGC apoptosis were evaluated through immunofluorescent staining method then observed using laser scanning confocal microscopy. RESULTS： BP significantly increased in all of the hypertension groups compared to control（P =0.001）.Peak IOP elevation（7.78±4.14 mm Hg） and RGC apoptosis（576.15±33.28 Au） occurred on 2wk of hypertension. ET-1expression（1238.6±55.1 Au） and e NOS expression（2814.2±70.7 Au） were found highest in 2wk of hypertension,although the ratio of ET-1/e NOS decreased since *** peak expression in 10 wk of hypertension（1219.4 ±6.3 Au）, while ETRBsignificantly increased only in 2 weeks group（1069.2 ±9.6 Au）. The highest MLCK expression（1190.09±58.32 Au）, Ca D（1670.28±18.36 Au）were also found in 2wk of ***： Hypertension effects to activation of ET-1 signaling pathway significantly in CRA, elevation of IOP, and RGC apoptosis. The highest value was achieved at 2wk, which is the development phase of hypertension.

关键词： hypertension central retinal artery endothelin- 1 signaling pathway rats

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