scholarly journals Reanalysis of the Atmospheric Radiocarbon Calibration Record from Lake Suigetsu, Japan

Radiocarbon ◽  
2020 ◽  
Vol 62 (4) ◽  
pp. 989-999 ◽  
Author(s):  
Christopher Bronk Ramsey ◽  
Timothy J Heaton ◽  
Gordon Schlolaut ◽  
Richard A Staff ◽  
Charlotte L Bryant ◽  
...  
Keyword(s):  
Microscopic Analysis ◽  
Plant Macrofossils ◽  
Time Range ◽  
Precision Data ◽  
New Information ◽  
Different Types ◽  
High Precision Data ◽  
Varve Counting ◽  
Insight Into ◽  
Radiocarbon Calibration

ABSTRACTTerrestrial plant macrofossils from the sedimentary record of Lake Suigetsu, Japan, provide the only quasi-continuous direct atmospheric record of radiocarbon (14C) covering the last 50 ka cal BP (Bronk Ramsey et al. 2012). Since then, new high precision data have become available on U-Th dated speleothems from Hulu Cave China, covering the same time range (Cheng et al. 2018). In addition, an updated varve-based chronology has also been published for the 2006 core from Lake Suigetsu (SG06) based on extended microscopic analysis of the sediments and improved algorithms for interpolation (Schlolaut et al. 2018). Here we reanalyze the radiocarbon dataset from Suigetsu based on the new varve counting information and the constraints imposed by the speleothem data. This enables the new information on the calendar age scale of the Suigetsu dataset to be used in the construction of the consensus IntCal calibration curve. Comparison of the speleothem and plant macrofossil records provides insight into the mechanisms underlying the incorporation of carbon into different types of record and the relative strengths of different types of archive for calibration purposes.

Small rodent communities (Muridae) in Gabonese savannas: species diversity and biogeographical affinities

Mammalia ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Jean-François Mboumba ◽  
Maxime R. Hervé ◽  
Véronique Guyot ◽  
Frederic Ysnel
Keyword(s):  
Ecological Factors ◽  
Abundant Species ◽  
Small Rodent ◽  
Small Rodents ◽  
South West ◽  
New Information ◽  
Different Types ◽  
Mus Minutoides ◽  
Insight Into ◽  
Coastal Basin

Abstract The study contributes to the knowledge of species composition and biogeographical affinities of savannas rodent in Gabon. Unlike small rodents in Gabonese forests, there is little data on the diversity of small rodents in Gabonese savannas. The diversity and distribution of rodent murid communities was studied in four different types of savanna in Gabon: Coastal Basin (South-West), Lopé/Okanda (in the Center), Batéké Plateaux (Southeastern) and Ngougnié/ N’yanga (in the South). A total of 428 individuals representing six species were captured over 11,920 trap nights. Trap success was highly variable (2.2–6.9 %). The most abundant species were Mus minutoides (69%) followed by Lemniscomys striatus (21.5%). Indices of species richness varied from 2 to 5 and diversity (Shannon and Weaver) was low in the four savannas with the highest value at Ngougnié/N’yanga (H′ = 1.2). Species distributions show that Gabonese savanna small rodents conform to four distribution types, with one species known from Zambesian savannas exhibiting austral affinities (Pelomys campanae: occurs in three southern savannas). This new information provides important insight into the biogeography of small rodents at a local and regional level. Moreover, the correspondence analysis highlighted an influence of local ecological factors on population abundance.

The participation of Palestinian-Israeli politicians in public and commercial television and radio in Israel as capability

2021 ◽  
pp. 174804852199056
Author(s):  
Baruch Shomron ◽  
Amit Schejter
Keyword(s):  
Capabilities Approach ◽  
Media Representations ◽  
Community Members ◽  
Commercial Television ◽  
Radio Stations ◽  
Modes Of Representation ◽  
Current Affairs ◽  
Different Types ◽  
The Media ◽  
Insight Into

This study examines how media representations of Palestinian-Israeli politicians, can help community members realize their capabilities. The study’s database is comprised of 1,207 interviews conducted with Palestinian-Israeli politicians on news and current affairs programs on the three national television channels and the two national radio stations in Israel, for 24 months (2016-2017). We identified and analyzed the differences in the modes of representation between national and local Palestinian-Israeli politicians and between Palestinian-Israeli parliament members in the Joint List and Palestinian-Israeli parliament members in Zionist parties, all through the capabilities prism. In this study, we demonstrated how different types of Palestinian-Israeli politicians may potentially affect the realization of different political functions and capabilities. Analyzing political representations in the media through the theoretical framework of the ‘capabilities approach’ contributes to a more comprehensive insight into the roles the media can play promoting people’s wellbeing and human rights, relative to traditional media theories.

Double, triple or quadruple hits? Exploring the impact of cybercrime on victims in the Netherlands

2021 ◽  
pp. 026975802110106
Author(s):  
Raoul Notté ◽  
E.R. Leukfeldt ◽  
Marijke Malsch
Keyword(s):  
Public Opinion ◽  
Literature Review ◽  
The Netherlands ◽  
Public Discourse ◽  
Moral Judgments ◽  
Victim Blaming ◽  
High Prevalence ◽  
Different Types ◽  
The Impact ◽  
Insight Into

This article explores the impact of online crime victimisation. A literature review and 41 interviews – 19 with victims and 22 with experts – were carried out to gain insight into this. The interviews show that most impacts of online offences correspond to the impacts of traditional offline offences. There are also differences with offline crime victimisation. Several forms of impact seem to be specific to victims of online crime: the substantial scale and visibility of victimhood, victimisation that does not stop in time, the interwovenness of online and offline, and victim blaming. Victims suffer from double, triple or even quadruple hits; it is the accumulation of different types of impact, enforced by the limitlessness in time and space, which makes online crime victimisation so extremely invasive. Furthermore, the characteristics of online crime victimisation greatly complicate the fight against and prevention of online crime. Finally, the high prevalence of cybercrime victimisation combined with the severe impact of these crimes seems contradictory with public opinion – and associated moral judgments – on victims. Further research into the dominant public discourse on victimisation and how this affects the functioning of the police and victim support would be valuable.

EFFECT OF PERACETIC ACID OXIDATION ON N-CONTAINING COMPONENTS OF HUMIC MATERIALS

1980 ◽  
Vol 60 (3) ◽  
pp. 541-548 ◽  
Author(s):  
M. SCHNITZER ◽  
D. A. HINDLE
Keyword(s):  
Amino Acid ◽  
Peracetic Acid ◽  
Amino Sugar ◽  
Chemical Oxidation ◽  
Acid Oxidation ◽  
Mild Oxidation ◽  
Total N ◽  
Different Types ◽  
Humic Materials ◽  
Insight Into

Three humic and one fulvic acid were degraded by mild chemical oxidation with peracetic acid, with special emphasis on the effects of this type of oxidation on N-containing components. The different types of N that were considered were NH4+-N, amino acid-N, amino sugar-N, NO2−-N + NO3−-N, and by difference from total N, "unknown" N. The behaviour toward mild chemical oxidation of all four preparations was essentially similar: there were decreases in mino acid-N, amino sugar-N and "unknown" N, increases in NH4+-N, NO2−-N + NO3−-N with one material, and in N-gases. The "unknown" N was not inert. Between 16.6 and 59.1% of the latter appeared to be converted, as a result of mild chemical oxidation, to NH3 and N-gases which were expelled from the systems. The results presented provide an insight into what happens to N-containing humic components as a result of mild oxidation.

An Insight into the Polymeric Nanoparticles Applications in Diabetes Diagnosis and Treatment

2021 ◽  
Vol 21 ◽  
Author(s):  
Parisa Dehghani ◽  
Monireh Esameili Rad ◽  
Atefeh Zarepour ◽  
Ponnurengam Malliappan Sivakumar ◽  
Ali Zarrabi
Keyword(s):  
Polymeric Nanoparticles ◽  
Synthetic Polymers ◽  
Diagnostic Methods ◽  
Diagnosis And Treatment ◽  
Diabetes Diagnosis ◽  
Transport Mechanisms ◽  
Different Types ◽  
Treatment And Diagnosis ◽  
Insight Into

: Diabetes mellitus (DM) is a type of chronic metabolic disease that has affected millions of people worldwide and is known with a defect in the amount of insulin secretion, insulin functions, or both. This deficiency leads to an increase in the amounts of glucose, which could be accompanied by long-term damages to other organs such as eyes, kidneys, heart, and nervous system. Thus, introducing an appropriate approach for diagnosis and treatment of different types of DM is the aim of several researches. By the emergence of nanotechnology and its application in medicine, new approaches were presented for these purposes. The object of this review article is to introduce different types of polymeric nanoparticles (PNPs), as one of the most important classes of nanoparticles, for diabetic management. To achieve this goal, at first, some of the conventional therapeutic and diagnostic methods of DM will be reviewed. Then, different types of PNPs, in two forms of natural and synthetic polymers with different properties, as a new method for DM treatment and diagnosis will be introduced. In the next section, the transport mechanisms of these types of nano-carriers across the epithelium, via paracellular and transcellular pathways will be explained. Finally, the clinical use of PNPs in the treatment and diagnosis of DM will be summarized. Based on the results of this literature review, PNPs could be considered one of the most promising methods for DM management.

scholarly journals Discourse Intonation and Information Structure: An Empirical Study of Existential There Constructions in Non-native Spontaneous Speech

2016 ◽  
Vol 8 (2) ◽  
pp. 139-153
Author(s):  
Judit Nagy
Keyword(s):  
Language Learners ◽  
Information Structure ◽  
Sentence Type ◽  
Spontaneous Speech ◽  
New Information ◽  
Different Types ◽  
Discourse Intonation ◽  
Problematic Area ◽  
Accented English ◽  
The Given

Abstract The management of given and new information is one of the key components of accomplishing coherence in oral discourse, which is claimed to be a problematic area for language learners (Celce-Murcia, Dörnyei, and Thurrell 1995: 14). Research on discourse intonation proposes that instead of the given/new dichotomy, givenness should be viewed as a continuum, with different types of accessibility (Baumann & Grice 2006). Moreover, Prince (1992) previously categorized information structure into Hearer-old/Hearer-new and Discourse-old/Discourse-new information. There is consensus on the fact that focus or prominence associated with new information is marked with nuclear pitch accent, and its main acoustic cue, fundamental frequency (f0) (Ward & Birner 2001: 120). Non-native intonation has been reported to display numerous differences in f0 range and patterns compared to native speech (Wennerstrom 1994; Baker 2010). This study is an attempt to address the issue of marking information structure in existential there sentences by means of f0 in non-native spontaneous speech. Data originates from task-based interactions in the Wildcat Corpus of Native- and Foreign-Accented English (Van Engen et al. 2010). This paper examines two issues: (1) information structure in relation to the notions of givenness and different types of accessibility (Baumann & Grice 2006) and to Prince’s (1992) multidimensional taxonomy and (2) the use of f0 peaks to mark the prominence of new information. Several differences were measured among native speakers regarding the use of f0, sentence type, and complexity.

Cooperative quizzes in the anatomy and physiology laboratory: a description and evaluation.

1996 ◽  
Vol 271 (6) ◽  
pp. S48 ◽  
Author(s):  
M S Jensen
Keyword(s):  
Cooperative Learning ◽  
Instructional Strategy ◽  
Anatomy And Physiology ◽  
New Information ◽  
Short Period ◽  
Different Types ◽  
Common Strategy ◽  
Physiology Laboratory ◽  
Types Of Instruction ◽  
Common Laboratory

Physiology educators read journals, such as this one, to gather ideas about curriculum and instruction. Most articles focus on curriculum (i.e., what is taught), but this paper will focus on instruction (i.e., how curriculum is implemented). Just as there are different types of curricula, there are different types of instruction. The most common strategy is lecture. Lectures are extremely efficient for delivering large amounts of information in a short period of time. A common laboratory strategy is discovery or inquiry-based learning (i.e., giving students tools, cognitive and physical, to deduce new information via investigations). A third instructional strategy is the use of cooperative learning. Proper conditions are required for each instructional strategy, and problems arise when the wrong combinations are put together. This paper will describe how a cooperative learning environment can be created in the anatomy and physiology laboratory through the use of cooperative quizzes. It will include a brief introduction to the pedagogical theory behind cooperative learning and an evaluation of the effectiveness of quizzes compared with more traditional methods.

scholarly journals Deep learning-aided high-precision data detection for massive MU-MIMO systems

2021 ◽  
Vol 336 ◽  
pp. 04007
Author(s):  
Sen Yang ◽  
Zerun Li ◽  
Jinhui Wei ◽  
Zuocheng Xing
Keyword(s):  
Mimo Systems ◽  
Detection Algorithm ◽  
Iterative Detection ◽  
Data Detection ◽  
Wireless System ◽  
Precision Data ◽  
Efficient Detection ◽  
High Precision Data ◽  
Complexity Cost ◽  
Iteration Parameters

The data detector for future wireless system needs to achieve high throughput and low bit error rate (BER) with low computational complexity. In this paper, we propose a deep neural networks (DNNs) learning aided iterative detection algorithm. We first propose a convex optimization-based method for calculating the efficient detection of iterative soft output data, and then propose a method for adjusting the iteration parameters using the powerful data driven by DNNs, which achieves fast convergence and strong robustness. The results show that the proposed method can achieve the same performance as the known algorithm at a lower computation complexity cost.

Sign in / Sign up

Export Citation Format

Share Document