L’évaluation géoécologique de l’intérêt patrimonial des sols polygonaux hérités en montagne alpine. L’exemple du Col du Noyer (Massif du Dévoluy, Hautes Alpes, France)... by Pierre Pech, Mahé Ajinca, Sylvain Abdulhak, Eric Hustache, Laurent Simon, Brigitte Talon

“…It was located in an unglaciated area during the last Quaternary ice age and suffered the effects of the severe frost. …”
Get full text

Stepwise order in protein complex assembly: approaches and emerging themes by Michael T. Brown, Michael A. McMurray

“…One aspect that is particularly understudied is assembly order, the idea that there is a stepwise order to the subunit–subunit associations that underlies the efficient assembly of the quaternary structure. Here, we integrate a review of the methodological approaches commonly used to query assembly order within a discussion of studies of the 20S proteasome core particle, septin protein complexes, and the histone octamer. …”
Get full text

Biological Reduction of Perchlorate from Spent Modified Reed Mediated by an Enriched Microbial Culture by Salem Baidas, Khaled Al-Deyain, Xiaoguang Meng, Baoyu Gao

“…The primary aim of this study was to assess the enriched microbial culture (EMC)-mediated biodegradation of perchlorate bound to spent quaternary amine-MR adsorbent. The culture was enriched to utilize perchlorate as an electron acceptor and brewer’s yeast as an electron donor. …”
Get full text

Influence of Added Cellulose Nanocrystals on the Rheology of Polymers by Rajinder Pal, Parth Deshpande, Smit Patel

“…The interactions between nanocrystals and the following polymers: anionic xanthan gum, anionic polyacrylamide, and cationic quaternary ammonium salt of hydroxyethyl cellulose, were found to be weak. …”
Get full text

Application of Induced Polarization and Resistivity to the Determination of the Location of Metalliferous Veins in the Taroucht and Tabesbaste Areas (Eastern Anti-Atlas, Morocco) by Ibrahim Dakir, Ahmed Benamara, Habiba Aassoumi, Abdessalam Ouallali, Youssef Ait Bahammou

“…It has Late Neoproterozoic to terminal, Paleozoic and Quaternary lands. In order to obtain a better recognition of the different structural contacts and to define the alignment of mineralized veins in barite and galena at the level of the study area, we used the technique of electrical tomography. …”
Get full text

Provenance of late Pleistocene loess in central and eastern Europe: isotopic evidence for dominant local sediment sources by K. Fenn, I. L. Millar, A. Bird, D. Veres, Doris Wagner

“…Abstract Loess profiles along the Danube River provide a record of long-term Quaternary dust (loess) deposition in central-eastern Europe. …”
Get full text

The three geologic regions of Puebla State, Mexico by Gilberto Silva-Romo, Claudia Cristina Mendoza-Rosales, Wendy Vanesa Morales Barrera, Yoalli Bianii Hernández-Marmolejo

“…Puebla State, Mexico, stands out with its diverse geological features, ranging from Precambrian and Paleozoic crystalline basements to the Pliocene-Quaternary major volcanoes. It is divided into three distinct regions: the northern region with its predominantly marine successions, where outcrops a volcano-sedimentary marine succession aged between 171.3 ± 0.5 Ma and 168.6 ± 0.4 Ma; the central region, part of the Trans-Mexican Volcanic Belt; and the southern region, mainly characterized by a multitude of continental units on crystalline basements.BULLETS:Geological regionalization, geological provinces, genetic-chronostratigraphic units, key successions tableGeological records contrast between the northern and southern regionsFirst report of Middle Jurassic marine volcano-sedimentary succession in the Sierra Madre Oriental Range…”
Get full text

Smaller than Small, the Unique Eocene Louse! by Martin Koziol, Torsten Wappler

“…The Tertiary volcanic field of the High Eifel (THV) lies between the two Quaternary volcanic fields of the West and East Eifel and extends far into the West Eifel. …”
Get full text

Cultural diversity shaped neolithic subsistence in the Carpathian Basin by M. L. C. Depaermentier, M. Kempf, E. Bánffy, K. W. Alt

Get full text

GIS-based modeling and analytical approaches for groundwater quality suitability for different purposes in the Egyptian Nile Valley, a case study in Wadi Qena by Hanaa A. Megahed, Abd El-Hay A. Farrag, Amira A. Mohamed, Mahmoud H. Darwish, Mohamed A. E. AbdelRahman, Heba El-Bagoury, Paola D’Antonio, Antonio Scopa, Mansour A. A. Saad

“…To achieve this goal, 17 groundwater samples were collected from the Quaternary and Nubian aquifer from the middle and southern part of the Wadi. …”
Get full text

Ecosystem Services Assessment of Geosites in the Seridó Aspiring UNESCO Geopark Area, Northeast Brazil by Matheus Silva, Kátia Mansur, Marcos Nascimento

“…It encompasses six municipalities with a notable geodiversity, ranging from the Riacian to the Quaternary. As a way of highlighting the importance of the abiotic elements of this region, an evaluation of local geosites was carried out according to a approach concerning ecosystem services. …”
Get full text

Separation of Branched Hexane Isomers on Zeolite BETA by Patrick S. Bárcia, José A.C. Silva, Alírio E. Rodrigues

“…An experimental study of the single, binary, ternary and quaternary fixed bed adsorption of hexane isomers onto zeolite BETA was performed covering the temperature range between 423 K and 523 K and partial pressures up to 0.3 bar. …”
Get full text

The Anthropocene Is More Than a Time Interval by Matthew Edgeworth, Andrew M. Bauer, Erle C. Ellis, Stanley C. Finney, Jacquelyn L. Gill, Philip L. Gibbard, Mark Maslin, Dorothy J. Merritts, Michael J. C. Walker

“…Abstract Following the recent rejection of a formal Anthropocene series/epoch by the Subcommission on Quaternary Stratigraphy (SQS) of the International Commission on Stratigraphy (ICS), and its subsequent confirmation by the International Union of Geological Sciences (IUGS), the opportunity arises to reset the definition of the Anthropocene. …”
Get full text

Orbital and suborbital temperature variability in the central Mediterranean across the Pliocene/Pleistocene transition. by Elena Zanola, Teresa Rodrigues, Sergio Bonomo, Patrizia Ferretti, Eliana Fornaciari, Agata Di Stefano, Alessandro Incarbona, Nereo Preto, Isabella Raffi, Luca Capraro

“…Although the driving mechanisms of these processes remain largely unconstrained, our study emphasizes the role of the central Mediterranean as the main reference for high-resolution paleoclimatic studies in the Neogene and the Quaternary.…”
Get full text

Advanced ellipse overlap computation based on segment area of circles by Minhye Kim, Yongkuk Kim, Giphil Cho

“…Given two ellipses of either the standard or general types, a quaternary equation can be derived for the intersection points of the two ellipses. …”
Get full text

Fonctionnement hydrologique et enjeux de société : exemples de l’aquifère crayeux de l’Ouest du Bassin de Paris by Jean-Paul Dupont

“…On the plateaus, the input karst is covered by superficial formations more (clay with flints and Quaternary loesses). Runoff produces soil erosion within small watersheds. …”
Get full text

Adsorption Mechanisms of Phenol and Methylphenols on Organoclays by Özlem Ceyhan, Hülya Güler, Raif Güler

“…Eight clay–organic complexes were synthesized by placing quaternary ammonium cations (QUATs) on to bentonite (B) and kaolinite (K) by cation exchange. …”
Get full text

Complexes of a piperazine based macrocycle as Cu-Zn SOD biomimetic: approach by constants determination by Armando Ferrer Serrano, Ilena Alica García Del Toro

“…As an approach to the Cu,Zn-SOD system, the formation of quaternary species formed between these ions, the main ligand and histidine as a secondary ligand, was verified, which could be used as mimetics of said enzyme. …”
Get full text

Tectonic movements and deformations within the Bishkek local GPS network (Northern Tien Shan) based on long-term space geodetic observations by @Kuzikov, Sergey I., Prokhorov, Oleg A.

“…A regular decrease in the northern velocity component was shown from the southern block of Paleozoic rocks on the northern slope of the Kyrgyz Ala-Too Range through the middle block of Cenozoic formations and to the northern block of Quaternary deposits in the Chu Valley. Based on the velocity vectors, fields of different types of strain rates were constructed, which indicate a concentration of increased strain values up to 1.4‧10–7 /year within the middle Cenozoic block. …”
Get full text

Research on Ethanol Coupling to Prepare C4 Olefins Based on BP Neural Network and Cluster Analysis by Sheng-Mei Zhang, Wen-Li Zhan, Han Hu, Yu-Shu Liu, Jia-Ming Zhu

“…Secondly, based on the two-dimensional visualization analysis, we cluster the different catalyst combinations; divide the influencing factors into temperature, Co/SiO2 and HAP loading ratio, Co loading, and ethanol concentration; and construct a quaternary linear regression equation that affects ethanol conversion rate and C4 olefin selectivity. …”
Get full text