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Articles 3031 - 3060 of 5745
Full-Text Articles in Entire DC Network
Threats To A Sustainable Future: Water Accumulation And Conflict In Latin America, Rutgerd Boelens, Mourik Bueno De Mesquita, Antonio R Gaybo, Francisco Peña
Threats To A Sustainable Future: Water Accumulation And Conflict In Latin America, Rutgerd Boelens, Mourik Bueno De Mesquita, Antonio R Gaybo, Francisco Peña
Sustainable Development Law & Policy
No abstract provided.
Liquid Challenges: Contested Water In Central Asia, Christine Bichsel
Liquid Challenges: Contested Water In Central Asia, Christine Bichsel
Sustainable Development Law & Policy
No abstract provided.
High-Value Natural Resources: A Blessing Or A Curse For Peace?, Päivi Lujala, Siri Aas Rustad
High-Value Natural Resources: A Blessing Or A Curse For Peace?, Päivi Lujala, Siri Aas Rustad
Sustainable Development Law & Policy
No abstract provided.
Natural Resources Conflict In The Democratic Republic Of The Congo: A Question Of Governance?, Clementine Burnley
Natural Resources Conflict In The Democratic Republic Of The Congo: A Question Of Governance?, Clementine Burnley
Sustainable Development Law & Policy
No abstract provided.
Bankrupting Peace Spoilers: What Role For Un Peacekeepers?, Philippe Le Billon
Bankrupting Peace Spoilers: What Role For Un Peacekeepers?, Philippe Le Billon
Sustainable Development Law & Policy
No abstract provided.
Volume 12 Issue 1, Sustainable Development Law & Policy
Volume 12 Issue 1, Sustainable Development Law & Policy
Sustainable Development Law & Policy
No abstract provided.
New Data On The Western Transylvanides Along The Ampoi Valley (Southern Apuseni Mts., Romania), Erika Suciu-Krausz, Ramona BăLc, Florin Borbei
New Data On The Western Transylvanides Along The Ampoi Valley (Southern Apuseni Mts., Romania), Erika Suciu-Krausz, Ramona BăLc, Florin Borbei
Studia UBB Geologia
In order to clarify some of the issues regarding the mineralogical content and the source area of the Cretaceous deposits from Ampoi Valley basin (Southern Apuseni Mountains) fourteen lithologic logs were drawn from the Ampoi Valley both side tributaries (Slatinii, Ruzi, Vâltori, Valea lui Paul, Feneş, Călineasa, Fierului Brook, Bobului, Satului, Tăuţi, Galaţi, Presaca Ampoiului, Valea Mică and Valea Mare brooks). The main sedimentary rock types were identified (conglomerates, wacke and lithic sandstones, clays, and marls). The sandstones were classified according to the ternary diagrams. Their petrographic features revealed both a magmatic and a metamorphic source area for them.
A Novel Morphological Type Of Siderite In The Jamesonite Paragenesis From Herja (Maramures County, Romania), Virgil Ghiurcă, Dana Pop
A Novel Morphological Type Of Siderite In The Jamesonite Paragenesis From Herja (Maramures County, Romania), Virgil Ghiurcă, Dana Pop
Studia UBB Geologia
The loose jamesonite felted masses found in several vein-type Miocene ore deposits in Romania, at Herja in particular, host a very rich and peculiar mineral assemblage. This study concerns a novel morphological type of loose siderite crystals identified in this paragenesis. Additional to their macroscopic and microscopic investigation, powder X-ray diffraction (XRPD) analysis was carried out. Based on XRPD patterns, some pseudoxehagonal prisms, up to 10 mm in size, black to dark brown in color, with rugged surfaces and microscopic mosaic-like structures, were proved to be siderite. The described morphological type of siderite represents a novelty for Herja ore deposits, …
The Metamorphic Basement Of Romanian Carpathians: A Discussion Of K-Ar And 40Ar/39Ar Ages, Carol Strutinski, Adrian Pus̡Te, Rodica Stan
The Metamorphic Basement Of Romanian Carpathians: A Discussion Of K-Ar And 40Ar/39Ar Ages, Carol Strutinski, Adrian Pus̡Te, Rodica Stan
Studia UBB Geologia
More than 600 radiometric K-Ar ages on rocks from the metamorphic basement of the Romanian Carpathians are statistically treated and discussed. The data suggest that the most pervasive Alpine rejuvenation occurred in a belt of about 100-120 km width, within which crystalline rocks were intensely reworked, undergoing a metamorphic remobilisation of Barrovian type before Middle – Late Cretaceous. This Eo-Alpine metamorphic belt outcrops on the flanks of the Mureş Zone, i.e., in the Rodna massif to the NE, and in the Northern Apuseni to the west. Away from it, ages get progressively older and outline a broad Variscan metamorphic province. …
The Impact Of Human Activities In The Gutaiului Mountains, Romania, Angelica Feurdean, Ciprian Astalos
The Impact Of Human Activities In The Gutaiului Mountains, Romania, Angelica Feurdean, Ciprian Astalos
Studia UBB Geologia
The examination of pollen and charcoal from the Gutâiului Mountains in northwestern Romania and the archaeological evidence from surroundings provides some information on how past human activities have changed the vegetation in this region. The first evidence of potential human influence upon the woodlands is manifested by fire clearance recorded at approximately 7900 cal. yr BP coinciding with the Early Neolithic. The charcoal peaks at ca. 5750, 3300, 2700, 1500, 1000 cal. yr BP, and during the last 300 years are associated with episodes of decline of main woodland constituents (Ulmus, Tilia, Fraxinus, and Corylus), and the expansion of fire-precursors …
The Olenekian Carbonates Of The Bucovinian Nappe (The Central Sector Of The Haghimas Syncline, Eastern Carpathians). Lithology And Microfacies, Daniela Alexandra Popescu, Liviu Gheorghe Popescu
The Olenekian Carbonates Of The Bucovinian Nappe (The Central Sector Of The Haghimas Syncline, Eastern Carpathians). Lithology And Microfacies, Daniela Alexandra Popescu, Liviu Gheorghe Popescu
Studia UBB Geologia
Early Triassic carbonate outcrops were studied in the central sector of the Hăghimaş Syncline with regard to stratigraphy, microfacies and facies interpretation.This is the first microfacies study of these deposits. Early Triassic carbonates in the Hăghimaş Syncline are represented by two stratified successions: limestones and dolomites. The limestones overlie very rarely the detritic basal deposits (Induan) which marks the beginning of the alpine transgression. The stratified dolomites underlie frequently the Early Anisian massive dolomites. The contact between the stratified limestones and stratified dolomites is only exposed on Calu brook outcrop (the western flank of the Hăghimaş Syncline). The age of …
The Post-Late Pontian Paleogeographic Evolution Of The South Harghita Mountains Area And The Adjacent Basins, Attila László
The Post-Late Pontian Paleogeographic Evolution Of The South Harghita Mountains Area And The Adjacent Basins, Attila László
Studia UBB Geologia
The paper concerns the stages of evolution of the South Harghita area and of the adjacent mountainous basins. The focus is set on specific geological events and on their consequences upon the paleogeographical modeling. Based on field observations and on previous studies, the Pliocene-Pleistocene geological events from the Baraolt and Lower Ciuc basins, the Tuşnad – Malnaş Channel and Sfântu Gheorghe gulf were synchronised with those from the South Harghita volcanic area.
Tracking Lateglacial And Early Holocene Environmental Change: A Palaeolimnological Study Of Sediment At Preluca Tiganului, Nw Romania, Angelica Feurdean
Tracking Lateglacial And Early Holocene Environmental Change: A Palaeolimnological Study Of Sediment At Preluca Tiganului, Nw Romania, Angelica Feurdean
Studia UBB Geologia
Palaeoecological, palaeohydrological, and paleoenvironmental reconstruction of the Late Glacial and the early Holocene have been performed from sediment accumulated in a small former crater lake, in the GutâI Mountains, NW Romania. Pollen, lithology, mineral magnetic, and loss-on-ignition analyses in conjunction to radiocarbon dating have been use for this purpose. The data indicates that during the Late Glacial period, vegetation dynamics were likely driven by climatic fluctuations. The climate events during the Late Glacial are well mirrored in local vegetation assemblage development, and past lake level fluctuations. These climatic events recorded in south-eastern Europe, are well correlated with the climate events …
Buffalo, Bush Meat, And The Zoonotic Threat Of Brucellosis In Botswana, Kathleen Anne Alexander, Jason Kenna Blackburn, Mark Eric Vandewalle, Risa Pesapane, Eddie Kekgonne Baipoledi, Phil H. Elzer
Buffalo, Bush Meat, And The Zoonotic Threat Of Brucellosis In Botswana, Kathleen Anne Alexander, Jason Kenna Blackburn, Mark Eric Vandewalle, Risa Pesapane, Eddie Kekgonne Baipoledi, Phil H. Elzer
Faculty Publications
Background: Brucellosis is a zoonotic disease of global importance infecting humans, domestic animals, and wildlife. Little is known about the epidemiology and persistence of brucellosis in wildlife in Southern Africa, particularly in Botswana. Methods: Archived wildlife samples from Botswana (1995-2000) were screened with the Rose Bengal Test (RBT) and fluorescence polarization assay (FPA) and included the African buffalo (247), bushbuck (1), eland (5), elephant (25), gemsbok (1), giraffe (9), hartebeest (12), impala (171), kudu (27), red lechwe (10), reedbuck (1), rhino (2), springbok (5), steenbok (2), warthog (24), waterbuck (1), wildebeest (33), honey badger (1), lion (43), and zebra (21). …
Minutes From The March 8, 2012 Meeting Of The University Of Montana Faculty, University Of Montana--Missoula. Faculty
Minutes From The March 8, 2012 Meeting Of The University Of Montana Faculty, University Of Montana--Missoula. Faculty
University of Montana Faculty Senate Meeting Minutes
Meeting minutes from the March 8, 2012 meeting of the University of Montana faculty.
Beholden To The Bear: The Political Economy Of European Natural Gas Trade With Russia, Jessica Miltenberger
Beholden To The Bear: The Political Economy Of European Natural Gas Trade With Russia, Jessica Miltenberger
Claremont-UC Undergraduate Research Conference on the European Union
No abstract provided.
Territorialization Of The European Union: Differences In Integration, Neha Jaganathan
Territorialization Of The European Union: Differences In Integration, Neha Jaganathan
Claremont-UC Undergraduate Research Conference on the European Union
No abstract provided.
Nato Expansion During The Cold War And After, Evan Jaroff
Nato Expansion During The Cold War And After, Evan Jaroff
Claremont-UC Undergraduate Research Conference on the European Union
No abstract provided.
Lower Cretaceous Limestones From The Northern Part Of Padurea Craiului (Osoiu Hill And Subpiatra Sections): Biostratigraphy And Preliminary Data On Microbial Structures, Hyam Daoud, Ioan I. Bucur, Emanoil SăSăRan, Ioan Cociuba
Lower Cretaceous Limestones From The Northern Part Of Padurea Craiului (Osoiu Hill And Subpiatra Sections): Biostratigraphy And Preliminary Data On Microbial Structures, Hyam Daoud, Ioan I. Bucur, Emanoil SăSăRan, Ioan Cociuba
Studia UBB Geologia
Two sections have been measured within the Lower Cretaceous deposits from the northern part of Pădurea Craiului: Osoiu Hill section and Subpiatră section. Thin sections representing more than 180 samples allowed us to present some results on the biostratigraphy, facies succession and the role of microbial structures in the genesis of these limestones. The Osoiu Hill section is dominated by fenestral limestones formed in the intertidal or in the shallow subtidal zone. Their formation is dominantly related to microbial mats. Based on foraminiferal assemblages we attribute a Lower Barremian age to these limestones. The succession in the Subpiatra section is …
Microfacies Of The Triassic Limestones In The Piatra Soimului Klippe (Transylvanian Nappes Rarau Syncline, Eastern Carpathians, Romania), Daniela Popescu, Liviu Popescu
Microfacies Of The Triassic Limestones In The Piatra Soimului Klippe (Transylvanian Nappes Rarau Syncline, Eastern Carpathians, Romania), Daniela Popescu, Liviu Popescu
Studia UBB Geologia
The Piatra Şoimului klippe belongs to the allochtonous sedimentary succession of the Transylvanian Nappes in the Rarău Syncline. It is situated on the western flank of the syncline over the Callovian – Oxfordian jaspers. The identified micropaleotologic association consists of dasycladales, foraminifera, sphynctozoa, echinoderms, etc. which indicate Pelsonian–Norian age. The microfacies of these limestones demonstrate the origin of Piatra Şoimului klippe from a previously carbonate platform situated to the west of the Bucovinian sedimentary domain. The correlation between the allochemic and ortochemic components described in the numerous microfacies types proves that the Triassic sedimentation took place in an internal platform …
Secondary Sulfates Found In An Old Adit From Rosia Montana, Romania, Bogdan P. Onac, Daniel Vereș, Joe Kearns, Mirona Chirienco, Adrian Minuț, Radu Breban
Secondary Sulfates Found In An Old Adit From Rosia Montana, Romania, Bogdan P. Onac, Daniel Vereș, Joe Kearns, Mirona Chirienco, Adrian Minuț, Radu Breban
Studia UBB Geologia
Recent investigation on several secondary minerals formed in old mining galleries in the Cârnic district (Roşia Montană, Romania) enabled us to characterize ten minerals. Out of these ten identified minerals, the discovery of jokokuite is the first reported occurrence in the Carpathians. A second mineral identified as apjohnite represents a new occurrence in Romania. Along with these two rare minerals, some other species of the halotrichite group (pickeringite, halotrichite, apjohnite, and dietrichite), iron sulfates, and K-Al sulfates were identified. Minerals were identified using light microscopy, X-ray diffraction, infrared, and scanning electron microscopy with energy dispersive spectroscopy. The chemical composition of …
The Identification Of The Valach Cycle – Important Achievement Of Romanian Geological Research School, Mircea Țicleanu, Nicolae Țicleanu, Paul Constantin, Simon Pauliuc, Florian Marinescu
The Identification Of The Valach Cycle – Important Achievement Of Romanian Geological Research School, Mircea Țicleanu, Nicolae Țicleanu, Paul Constantin, Simon Pauliuc, Florian Marinescu
Studia UBB Geologia
The paper summarises the main consequences resulting from the identification of a new climatic cycle. The new cycle, referred to as "The Valach Cycle" (nom. nov., Prague, 1998), has a period of about 4.1 m.y., and its warming and cooling phases can be traced for a period of minimum 86 m.y., up to Santonian (inclusive). More exactly, the paper suggests that this new cycle can be a direct consequence of pulsation of the Solar system – a newly identified cosmic movement to which we refer to as the "Valach pulsation". This paper also refers to the previous research studies in …
A Revision Of The Rona Member, Vlad A. Codrea, Emanoil SăSăRan
A Revision Of The Rona Member, Vlad A. Codrea, Emanoil SăSăRan
Studia UBB Geologia
Lacustrine deposits occurring in the Jibou Formation (Late Maastrichtian – Lutetian) were mentioned in the Rona village area since the first half of the 19th century. Hungarian and Romanian geologists also carried out several researches in the last century, referring to the so-call “Rona Limestone” or “Rona Member”. In the last years, new outcrops resulted as a consequence of works made for the Botanical Garden at Jibou, adding details concerning mainly the base of the lacustrine succession. The new geological section from Jibou Botanical Garden should complete the old stratotype of the "Rona Limestone”, as a hypostratotype.
Preliminary Data On The Mineralogy Of Limestone And Skarn-Hosted Caves From Baita (Bihor County, Romania), Bogdan P. Onac, Paul Damm
Preliminary Data On The Mineralogy Of Limestone And Skarn-Hosted Caves From Baita (Bihor County, Romania), Bogdan P. Onac, Paul Damm
Studia UBB Geologia
This paper presents the mineralization of five medium-size limestone-caves and eleven skarn-hosted caves from the upper part of Cri¿ul B¾ißei River (Bihor Mountains). Apart from berlinite – AlPO4, the other minerals reported from the limestone caves are common carbonates, phosphates or oxy-hydroxides. In turn, the skarn-hosted caves contain a diversity of minerals, including wittichenite, luzonite, natrolite, norsethite, rosasite, glaukosphaerite, aurichalcite, azurite, malachite and chalcanthite. Five of these minerals have never before been identified in a cave environment and moreover, three are new occurrences in Romania. Some of these minerals are hydrothermal in origin, whereas alteration and/or hydration of primary hydrothermal …
Fossil Plants From Romanian Deposits Of Bacles, Dolj District, Romania, Nicolae Țicleanu, Petre Enciu, Ion PăTruțoiu, Valentin Paraschiv
Fossil Plants From Romanian Deposits Of Bacles, Dolj District, Romania, Nicolae Țicleanu, Petre Enciu, Ion PăTruțoiu, Valentin Paraschiv
Studia UBB Geologia
From the Middle Romanian lacustrine deposits of the Oltenia province, the authors describe the youngest fossil flora known until now in Oltenia. The inventory of the fossil flora includes the following taxa: Taxodium dubium, ?Platanus platanifolia, Ulmus laevis, Quercus roburoides, Q. cf. muehlenbergii, Carya serraefolia, Acer cf. tricuspidatum and Salix sp. In the Bâcleş fossil flora, Glyptostrobus europaeus, which is a thermophilous and shows a high frequency in all Oltenia area till the XV-th coal seam, is absent. Consequently, having in view the high frequency of Taxodium dubium, which indicate temperate climate conditions, the other consider that the fossil flora …
Late Quaternary Palaeoclimate Reconstruction Based On Clay Minerals Assemblage From Preluca Tiganului (Gutai Mountains, Romania), Lucreția Ghergari, Bogdan P. Onac
Late Quaternary Palaeoclimate Reconstruction Based On Clay Minerals Assemblage From Preluca Tiganului (Gutai Mountains, Romania), Lucreția Ghergari, Bogdan P. Onac
Studia UBB Geologia
Several core samples were extracted from the overgrown crater lake of Preluca Tiganului, NW Romania. The overall lithology and the mineral assemblages (mostly clay) described from different levels within these cores, suggest three main periods having humid or dry conditions. Based on these findings, palaeoclimate conditions can be reconstructed the over the time period spanning 15,000 to 13,500 cal. years BP.
Carbon Reduction Projects And The Concept Of Additionality, Brian Joseph Mcfarland
Carbon Reduction Projects And The Concept Of Additionality, Brian Joseph Mcfarland
Sustainable Development Law & Policy
No abstract provided.
The Fierce Green Fire: Vol. 2 Issue 18, Wofford College Environmental Studies Program
The Fierce Green Fire: Vol. 2 Issue 18, Wofford College Environmental Studies Program
The Fierce Green Fire
No abstract provided.
Analyzing The 2011 Naep Results: Where Does Arkansas Stand Now?, Misty Newcomb, Gary Ritter
Analyzing The 2011 Naep Results: Where Does Arkansas Stand Now?, Misty Newcomb, Gary Ritter
Arkansas Education Reports
State education policymakers in Arkansas, and in all states around the country, take great interest in the state assessment scores published each year and are pleased when they are able to present positive results. This has certainly been the case in Arkansas with the annual publication of the results of student performance on the state Benchmark exams. While the state exams provide useful information that allow policymakers to compare schools and districts within Arkansas, they do not allow policymakers to assess the performance of Arkansas students relative to other students in the nation.