scholarly journals Multi-Mineral Element Profiles in Genuine and “Bathing” Cultured Chinese Mitten Crabs (Eriocheir sinensis) in Yangcheng Lake, China

Fishes ◽  
2022 ◽  
Vol 7 (1) ◽  
pp. 11
Author(s):  
Junren Xue ◽  
Tao Jiang ◽  
Xiubao Chen ◽  
Hongbo Liu ◽  
Jian Yang
Keyword(s):  
Eriocheir Sinensis ◽  
Comparative Investigation ◽  
Mineral Element ◽  
High Quality ◽  
The Third ◽  
Icp Ms ◽  
Geographical Regions ◽  
Mitten Crabs ◽  
Before And After ◽  
Fishery Products

The authentication of high-quality fishery products originating from specific geographical regions is urgently needed worldwide. Chinese mitten crabs (Eriocheir sinensis), originating from Yangcheng Lake, are prime counterfeiting targets for the same reasons. Foreign crabs that are cultured briefly in the lake, known as “bathed” crabs, are illegally marketed as natives, negatively impacting the product quality. To establish a method for distinguishing “bathed” and genuine crabs, in this paper we conduct a comparative investigation by an Agilent 7500ce ICP-MS on multi-mineral element profiling of the third pereiopod from genuine and one month deliberately “bathing” cultured crabs. The profiles of 11 elements were significantly different between the genuine and foreign crabs before and after bathing. The discriminant analysis reached 100% accuracy to separate the genuine and “bathed” crabs into different groups. Bathing culture was unable to converge element profiles between the genuine and foreign crabs. The biogeochemical profiles can be effective for distinguishing “bathed” crabs.

Аpplying of high-frequency monopolar diathermocoagulation in the treatment of chronic pulpitis

2020 ◽  
Vol 1 (12) ◽  
pp. 40-42
Author(s):  
F. Yu. Daurova ◽  
D. I. Tomaeva ◽  
S. V. Podkopaeva ◽  
Yu. A. Taptun
Keyword(s):  
Root Canal ◽  
High Frequency ◽  
Antibacterial Effect ◽  
Comparison Group ◽  
Poor Quality ◽  
Endodontic Treatment ◽  
Root Canals ◽  
The Third ◽  
Before And After

Relevance: the reason for the development of complications in endodontic treatment is poor-quality instrumental treatment root canals.Aims: a study of the animicrobial action and clinical efficacy of high-frequency monopolar diathermocoagulation in the treatment of chronic forms of pulpitis.Materials and methods: 102 patients with various chronic forms of pulpitis were divided into three groups of 34 patients each. In the first two groups, high-frequency monopolar diathermocoagulation was used in endodontic treatment in different modes. In the third group, endodontic treatment was carried out without the use of diathermocoagulation (comparison group). The root canal microflora in chronic pulpitis in vivo was studied twice-before and after diathermocoagulation.Results: it was established that high-frequency monopolar diathermocoagulation in the effect mode is 3, power is 4 (4.1 W) and effect is 4, power is 4 (5.4 W) with an exposure time of 3 seconds, it has a pronounced antibacterial effect on all presented pathogenic microflora obtained from the root canals of the teeth.

GESTOGENS IN CORPUS LUTEUM OF CATTLE

1960 ◽  
Vol XXXIII (III) ◽  
pp. 417-427 ◽  
Author(s):  
John Kristoffersen
Keyword(s):  
Corpus Luteum ◽  
Average Value ◽  
Spectrophotometric Methods ◽  
The Third ◽  
Quantitative Measurements ◽  
Before And After ◽  
Luteal Tissue ◽  
In Pregnancy

ABSTRACT By means of chromatographic and spectrophotometric methods progesterone and a substance closely similar to 20β-hydroxy-pregn-4-ene-3-one has been detected in luteal tissue from non-pregnant and pregnant cows. In 21 animals quantitative measurements based on a method giving an average net recovery of 56 per cent showed that in pregnancy the average progesterone content in the corpus luteum reached a maximum in the third to fifth month, with low values before and after this period. For 6 nonpregnant cows, the average value was 20.2 μg/g tissue, which is considerably higher than previous values reported in the literature. The relation between these findings and the bovine dependence on a functional corpus luteum in pregnancy is discussed, and it is pointed out that more information about the metabolism of progesterone in cattle is highly desirable.

Real Earnings Management before and after Reporting SOX 404 Material Weaknesses

2015 ◽  
Vol 30 (1) ◽  
pp. 119-141 ◽  
Author(s):  
Tuukka Järvinen ◽  
Emma-Riikka Myllymäki
Keyword(s):  
Earnings Management ◽  
Internal Control ◽  
Internal Controls ◽  
Real Earnings Management ◽  
Public Disclosure ◽  
High Quality ◽  
The Public ◽  
Material Weaknesses ◽  
Internal Control System ◽  
Before And After

SYNOPSIS The purpose of this study is to investigate whether SOX Section 404 material weaknesses manifest in real earnings management behavior. The empirical findings indicate that, compared to companies with effective internal controls, companies with existing material weaknesses in their internal controls engage in more manipulation of real activities (particularly inventory overproduction). This implies that the weak commitment by management to provide effective internal control system and high-quality financial information relates to a tendency to use real earnings management methods. Moreover, we find evidence suggesting that companies employ real earnings management (overproduction and reduction of discretionary expenses) after disclosing previous year's material weaknesses. We conjecture that the public disclosure of material weaknesses induces management to strive to mitigate the expected negative reactions of stakeholders to the disclosure by engaging in real earnings management, which is not easily detected or constrained by outsiders. Overall, this study suggests that material weaknesses in internal controls signal an environment where management is more inclined to employ real earnings management.

Carthage after the Punic Wars and the Neo-Punic Legacy

2019 ◽  
pp. 182-196
Author(s):  
Matthew Hobson
Keyword(s):  
Twentieth Century ◽  
North Africa ◽  
Cultural Change ◽  
Language Use ◽  
Cultural Development ◽  
Initial Examination ◽  
The Third ◽  
Funerary Rituals ◽  
Before And After ◽  
Punic Wars

This chapter provides a brief introduction to how the historiographical development of Roman studies, since mid-twentieth century decolonization, has altered our understanding of the developments which took place in North Africa following the destruction of Carthage in 146 bce. The reader is introduced to literary, epigraphic, and archaeological sources of evidence, which have traditionally been used to argue for either cultural change or continuity. After an initial examination of the immediate aftermath of the Third Punic War, Roman land appropriation and taxation, the focus is on sources of evidence usually described as “Punic,” “neo-Punic” or “Late Punic,” covering the spheres of municipal institutions, language use, and religious and funerary rituals. The vibrant multiculturalism and regional diversity of the Mediterranean and especially North Africa, both before and after the Roman conquest, is the dominant theme. This is used to shift emphasis away from grand explanatory paradigms based on essentialist identity categories, and toward a more nuanced picture of the complex and multivariate processes of cultural development and integration.

The first detection of white spot syndrome virus in naturally infected cultured Chinese mitten crabs, Eriocheir sinensis in China

2015 ◽  
Vol 220 ◽  
pp. 49-54 ◽  
Author(s):  
Zhengfeng Ding ◽  
Yufeng Yao ◽  
Fengxiang Zhang ◽  
Jinjuan Wan ◽  
Mengling Sun ◽  
...  
Keyword(s):  
White Spot Syndrome Virus ◽  
Eriocheir Sinensis ◽  
White Spot ◽  
Mitten Crabs ◽  
White Spot Syndrome

On the issue of post-tuberculosis lesions of the larynx in pulmonary tuberculosis

1901 ◽  
Vol 1 (3) ◽  
pp. 195-196
Author(s):  
A. T. Ostrovskiy
Keyword(s):  
Pulmonary Tuberculosis ◽  
Mucous Membrane ◽  
The Third ◽  
Before And After

Abstracts. Internal diseases.A. T. Ostrovsky. To the question of post-tuberculosis lesions of the larynx in pulmonary tuberculosis. Diss. S.-PB.1900 g.The author cites the literature that exists on the issue of interest to him, before and after the discovery of tuberous sticks by prof. Kos'om. At the present time, regarding the secondary tubercle of the larynx, there are already not at all many, each having its own supporters, from which some admit the penetration of tuberous sticks from the epithelial cover of the mucous membrane of the larynx, others hold the view that the vessels for the lymph from the inside through the third In view of the fact that up to the present time the issue of post-tuberculosis lesions of the larynx remains not fully clarified, the author decided to take on his work as much as possible.

Metabolomics of the hepatopancreas in Chinese mitten crabs (Eriocheir sinensis)

2021 ◽  
pp. 110914
Author(s):  
Long Zhang ◽  
Ning-Ping Tao ◽  
Xugan Wu ◽  
Xichang Wang
Keyword(s):  
Eriocheir Sinensis ◽  
Mitten Crabs

Energy and Resources Recovery from Gasified Screenings and Toxic Sludge

2021 ◽  
Vol 1045 ◽  
pp. 194-202
Author(s):  
Siviwe H. Bunge ◽  
James L. Topkin ◽  
Joshua Gorimbo ◽  
Diakanua B. Nkazi
Keyword(s):  
Liquid Fuel ◽  
Energy Content ◽  
Chemical Species ◽  
Adsorption Properties ◽  
Fuel Production ◽  
Management Options ◽  
High Quality ◽  
Oil Resources ◽  
Bio Oil ◽  
Before And After

Sludge and screenings management is increasingly becoming a dilemma due its accumulating and tightening environmental regulations that limit its disposal methods. Various sludge management options have been researched, ranging from incineration, thermochemical liquefaction, to pyrolysis and gasification. This work proposes syngas, bio-oil, chemical resources and bio-char production for beneficiation through gasification of a mixture of sludge and screenings at different ratios of 25/75, 50/50 and 75/25. It also studies mass loss and toxins possible destruction by gasification temperatures and reactions. Toxicity and CHNS analysis before and after gasification were aimed at finding sludge energy content, while thermogravimetric analysis (TGA), was to find sampling and stopping temperatures during gasification. The overall best results of high syngas quality (high LHV, H2, CO and CH4 contents) and high quality bio-oil (i.e. cleanest, with high crude oil equivalent bonds such as C1 up to C36 and higher applicable bio-oil resources and chemical species obtained) was achieved by a 75/25 ratio, followed by a 50/50 ratio. The results also showed some possibility of biological and chlorinated hydrocarbon toxins (PCBs and PAHs) break down as well as the reduction of sludge and screenings to about 32% of the initial mass. These results can be further investigated for syngas application in power generation and liquid fuel production. Char toxicity can be analysed for its application in agriculture and for its adsorption properties. Char can be analysed for the presence of metals in it.

CYCLIC AMP STIMULATION OF ELECTROGENIC UPTAKE OF Na+ AND Cl- ACROSS THE GILL EPITHELIUM OF THE CHINESE CRAB ERIOCHEIR SINENSIS

1994 ◽  
Vol 188 (1) ◽  
pp. 159-174 ◽  
Author(s):  
S Riestenpatt ◽  
W Zeiske ◽  
H Onken
Keyword(s):  
Cyclic Amp ◽  
Electromotive Force ◽  
Single Channel ◽  
Short Circuit ◽  
Ussing Chamber ◽  
Eriocheir Sinensis ◽  
Na Channel ◽  
Before And After ◽  
Gill Lamellae ◽  
Stimulation Of

Split gill lamellae (epithelium plus cuticle) of hyperregulating Chinese crabs acclimated to fresh water were mounted in a modified Ussing chamber. Active and electrogenic absorption of sodium and chloride were measured as positive amiloride-sensitive and negative Cl--dependent short-circuit currents (INa, ICl), respectively. Both currents were characterized before and after treatment of the tissue with theophylline or dibutyryl cyclic AMP. Both drugs increased INa and ICl. A simple circuit analysis showed that INa stimulation reflected a marked increase in the transcellular Na+ conductance, whereas the respective electromotive force was unchanged. The Michaelis constant (KNa) for Na+ current saturation was decreased after INa stimulation, indicating an increased affinity of the transport mechanism for its substrate. Consequently, the affinity for the Na+ channel blocker amiloride decreased as expected for a competitive interaction between substrate and inhibitor. Analysis of the amiloride-induced current-noise revealed a marked increase in the number of apical Na+ channels after INa stimulation with theophylline, whereas there was little change in the single-channel current. Stimulation of Cl- absorption was accompanied by a substantial increase in both transcellular conductance and electromotive force, indicating an activation of the apical H+ pump that provides the driving force for active Cl- uptake via apical Cl-/HCO3- exchange and basolateral Cl- channels.

““Prisoners for Freedom””: The Prisoners Issue Before and After Oslo

2006 ◽  
Vol 36 (1) ◽  
pp. 71-80
Author(s):  
Um Jabr Wishah
Keyword(s):  
Oral History ◽  
Health Program ◽  
Life Story ◽  
Mental Health Program ◽  
Arab Countries ◽  
The Third ◽  
Before And After ◽  
Community Mental Health Program ◽  
Village Life ◽  
The University

This is the third and final installment of Um Jabr's ““life story,”” earlier segments of which——on village life in pre-1948 Palestine and on the 1948 war and its aftermath——were published in JPS 138 (winter 2006) and JPS 140 (summer 2006). The current excerpts focus on Um Jabr's intense involvement in the prisoner issue that began when two of her sons were in Israeli jails. In particular, her activism took the form of organizing other women to visit prisoners from Arab countries who had no one to visit them on the twice monthly visits allowed. Um Jabr's 36,000-word ““life story”” was one of seven collected as part of an oral history project, as yet unpublished, carried out by Barbara Bill, an Australian who since 1996 has worked with the Women's Empowerment Project of the Gaza Community Mental Health Program, and Ghada Ageel, a refugee from al-Bureij camp now earning her Ph.D. at the University of Exeter in England. The women who participated in the project were interviewed a number of times during the first half of 2001; after the tapes were transcribed, the memories were set down exactly as they were told, the only ““editing”” being the integration of material from the various interviews into one ““life story.”” Um Jabr, who was in her early 70s at the time of the interviews, still lives in al-Bureij camp, where she has since 1950.

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