scholarly journals A Quantum Sensor for Neutrino Mass Measurements

2012 ◽  
Vol 2012 ◽  
pp. 1-24 ◽  
Author(s):  
Juan Manuel Cornejo ◽  
Daniel Rodríguez
Keyword(s):  
Neutrino Mass ◽  
Electron Neutrino ◽  
Penning Traps ◽  
Novel Device ◽  
The Status ◽  
Systematic Effects ◽  
Important Input ◽  
The Difference ◽  
Under Construction ◽  
The University

There are few experiments aiming at determining directly the mass of the electron antineutrino with a sensitivity of 0.2 eV by analyzing the end of theβ-decay spectrum of specific nuclei. This sensitivity can be only reached if the uncertainties arising from systematic effects are very small and very well determined. The same holds for experiments aiming at improving the sensitivity in the determination of the mass of the electron neutrino using electron-capture (ϵ)-decaying nuclei. One important input in these cases is an accurateQ-value of the decay which can be unambiguously determined from the difference of the mass of the mother and the daughter nuclei by means of Penning traps. In order to reach the required sensitivity, a novel device calledQuantum Sensoris under construction at the University of Granada (Spain). The device will allow measuring atomic masses, and thereforeQ-values from decays with unprecedented accuracy and sensitivity, using fluorescence photons from a laser-cooled ion instead of electronic detection. This paper will give an overview onQ-value measurements performed with Penning traps, relevant for neutrino mass spectrometry, describing the Quantum Sensor and the facility under construction. It will end by presenting the status of the project.

scholarly journals Current Direct Neutrino Mass Experiments

2013 ◽  
Vol 2013 ◽  
pp. 1-39 ◽  
Author(s):  
G. Drexlin ◽  
V. Hannen ◽  
S. Mertens ◽  
C. Weinheimer
Keyword(s):  
Neutrino Mass ◽  
Mass Scale ◽  
Background Rate ◽  
A Value ◽  
Independent Information ◽  
Absolute Mass ◽  
The Status ◽  
Institute Of Technology ◽  
Under Construction ◽  
Katrin Experiment

In this contribution, we review the status and perspectives of direct neutrino mass experiments, which investigate the kinematics ofβ-decays of specific isotopes (3H,187Re,163Ho) to derive model-independent information on the averaged electron (anti)neutrino mass. After discussing the kinematics ofβ-decay and the determination of the neutrino mass, we give a brief overview of past neutrino mass measurements (SN1987a-ToF studies, Mainz and Troitsk experiments for3H, cryobolometers for187Re). We then describe the Karlsruhe Tritium Neutrino (KATRIN) experiment currently under construction at Karlsruhe Institute of Technology, which will use the MAC-E-Filter principle to push the sensitivity down to a value of 200 meV (90% C.L.). To do so, many technological challenges have to be solved related to source intensity and stability, as well as precision energy analysis and low background rate close to the kinematic endpoint of tritiumβ-decay at 18.6 keV. We then review new approaches such as the MARE, ECHO, and Project8 experiments, which offer the promise to perform an independent measurement of the neutrino mass in the sub-eV region. Altogether, the novel methods developed in direct neutrino mass experiments will provide vital information on the absolute mass scale of neutrinos.

scholarly journals PREFERRED REASONS IN SELECTING TEACHING PROFESSION AS A LIFE CAREER: A CASE STUDY OF PRE-SERVICE TEACHERS

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Nargis Noor, Huma Akram, Muhammad Kamran
Keyword(s):  
Statistical Tests ◽  
Teaching Experience ◽  
Teaching Profession ◽  
Educational Approach ◽  
Before And After ◽  
The Status ◽  
Important Input ◽  
Bright Students ◽  
The University ◽  
Life Career

Commitment and efficiency of teachers have an important input in the successful accomplishment of educational objectives of any nation; thus, highly motivated teachers are vital for an effective educational approach. By using a quantitative method, this study examined why teachers select the teaching as a profession for their life career. Through the purposive sampling, pre-service teachers from the University of Loralai were chosen in which 147 students participated in this research. Researchers collected the data through questionnaires and analyzed it by using descriptive and inferential statistical tests. The findings point out that majority of pre-service teachers choose the teaching profession as their life career due to the altruistic-intrinsic reasons because it received the highest mean as compared to the other reasons (i.e., extrinsic and reasons influenced by others). The extrinsic reasons and reasons influenced by others followed by in order of preference respectively. Regarding the gender variable, male and female pre-service teachers showed significant differences in altruistic-intrinsic reasons. Contrary to this, age, teaching experience and professional qualifications showed no significant differences with the altruistic-intrinsic reasons. Based on the findings, this study suggests that education policy should set standards for teacher education programs to elevate the status of teachers for attracting bright students before and after completing the programs.

scholarly journals The IRAIT Project

2002 ◽  
Vol 19 (3) ◽  
pp. 306-312 ◽  
Author(s):  
M. Busso ◽  
G. Tosti ◽  
P. Persi ◽  
M. Ferrari-Toniolo ◽  
S. Ciprini ◽  
...  
Keyword(s):  
Ir Camera ◽  
Infrared Telescope ◽  
The Status ◽  
Under Construction ◽  
The University

AbstractWe present the status of the project IRAIT (the Italian Robotic Antarctic Infrared Telescope) that will be hosted at Dome C in the Italo-French Concordia station. We review the main scientific motivations of the effort, and describe the characteristics of the telescope, which has been completed and is now under test at the Coloti-Montone site operated by the University of Perugia. Then we describe the design of the mid-IR camera that is under construction, showing some examples of the applications on the basis of the twin instrument TIRCAM II, now operating at the Italian Infrared Telescope TIRGO.

scholarly journals Status and the perspectives of the Jiangmen Underground Neutrino Observatory (JUNO)

2020 ◽  
Vol 35 (09) ◽  
pp. 2030004
Author(s):  
Lino Miramonti
Keyword(s):  
Neutrino Mass ◽  
Liquid Scintillator ◽  
Solar Neutrinos ◽  
Mass Hierarchy ◽  
Atmospheric Neutrinos ◽  
Neutrino Mass Hierarchy ◽  
The Status ◽  
Order Of Magnitude ◽  
Under Construction

One of the remaining undetermined fundamental aspects in neutrino physics is the determination of the neutrino mass hierarchy, i.e. discriminating between the two possible orderings of the mass eigenvalues, known as Normal and Inverted Hierarchies. The Jiangmen Underground Neutrino Observatory (JUNO), a 20 kt Liquid Scintillator Detector currently under construction in the South of China, can determine the neutrino mass hierarchy and improve the precision of three oscillation parameters by one order of magnitude. Moreover, thanks to its large liquid scintillator mass, JUNO will also contribute to study neutrinos from non-reactor sources such as solar neutrinos, atmospheric neutrinos, geoneutrinos, supernova burst and diffuse supernova neutrinos. Furthermore, JUNO will also contribute to nucleon decay studies. In this work, I will describe the status and the perspectives of the JUNO experiment.

Motivasi dan kepuasan kerja pegawai puskesmas BLUD dan non-BLUD Kabupaten Semarang

2018 ◽  
Vol 2 (3) ◽  
pp. 111
Author(s):  
Aswindar Adhi Gumilang ◽  
Tri Pitara Mahanggoro ◽  
Qurrotul Aini
Keyword(s):  
Public Health ◽  
Job Satisfaction ◽  
Financial Management ◽  
Work Motivation ◽  
P Value ◽  
The Public ◽  
The Status ◽  
The Difference ◽  
Demand For Health ◽  
Public Demand

The public demand for health service professionalism and transparent financial management made some Puskesmas in Semarang regency changed the status of public health center to BLUD. The implementation of Puskesmas BLUD and non-BLUD requires resources that it can work well in order to meet the expectations of the community. The aim of this study is to know the difference of work motivation and job satisfaction of employees in Puskesmas BLUD and non-BLUD. Method of this research is a comparative descriptive with a quantitative approach. The object of this research are work motivation and job satisfaction of employees in Puskesmas BLUD and non-BLUD Semarang regency. This Research showed that Sig value. (P-value) work motivation variable was 0.019 smaller than α value (0.05). It showed that there was a difference of work motivation of employees in Puskemas BLUD and non-BLUD. Sig value (P-value) variable of job satisfaction was 0.020 smaller than α value (0.05). It showed that there was a difference of job satisfaction of BLUD and non-BLUD. The average of non-BLUD employees motivation were 76.59 smaller than the average of BLUD employees were 78.25. The average of job satisfaction of BLUD employees were 129.20 bigger than the average of non-BLUD employee were 124.26. Job satisfaction of employees in Puskesmas BLUD was higher than non-BLUD employees.

Vier Arten von Römern unter den Franken im 6. bis 8. Jh.

2016 ◽  
Vol 133 (1) ◽  
pp. 459-468
Author(s):  
Detlef Liebs
Keyword(s):  
Criminal Law ◽  
Civil Law ◽  
Roman Law ◽  
Procedural Law ◽  
The Status ◽  
The Difference ◽  
Law Texts ◽  
Fourth Kind

Abstract Four kinds of Romans in the Frankish kingdoms in the 6th to 8th centuries. Roman law texts from Merowingian Gaul make a difference between cives Romani, Latini and dediticii, all considered as Romans. This difference mattered only to slaves who had been freed. The status of Latin and dediticius was hereditary, whereas the descendants of one who had been freed as civis Romanus were free born Romans, who should be classified as a proper, a fourth kind of beeing Roman; it was the standard kind. The difference was important in civil law, procedural law and criminal law, especially in wergeld, the sum to be payed for expiation when somebody had been killed: Who had killed a Roman, had to pay different sums according to the status of the killed.

Optimization of the Expression of 1,3-1,4-β-glucanase Gene from Rhizomucor miehei in the Komagataella kurtzmanii yeast

2019 ◽  
Vol 35 (5) ◽  
pp. 3-11 ◽  
Author(s):  
I.I. Gubaidullin ◽  
A.S. Fedorov ◽  
D.G. Kozlov
Keyword(s):  
Target Gene ◽  
Rhizomucor Miehei ◽  
Leader Peptide ◽  
Promoter Regions ◽  
Functional Elements ◽  
Resource Center ◽  
The Status ◽  
Pichia Pastoris Yeast ◽  
The Difference ◽  
Genetic Constructs

Key functional elements of the vector (promoter, leader and terminator regions) that provide the expression of a target l,3-l,4-(3-glucanase gene from Rhizomucor miehei in the Komagataella kurtzmanii yeast have been optimized. It was shown that the promoter regions of the gene AOX1 from the Pichia pastoris yeast currently reclassified as Komagataella phaffti and from К. kurtzmanii yeast as parts of a vector provided equal levels of expression of the target gene in the cells of the recipient strain К. kurtzmanii Y727his4, i.e. they were completely interchangeable. This means that genetic constructs that were previously developed for the biosynthesis of recombinant proteins in К. phajfii are able to provide an effective expression in the К kurtzmanii yeast. The leader peptide MF4I (used as a variant of mif4I containing one amino acid substitution) and the leader peptide maxHH (containing the double proregion of the Hspl50 protein from Saccharomyces cerevisiae) confirmed the status of the most powerful elements among the five leader sequences analyzed. Their efficiency was 1.7 times higher than that of the standard leader from the yeast alpha-factor, and by 20% higher than the characteristics of the second group of artificial leaders. At the same time, it was found that, the choice of the terminator region had the strongest influence on the expression of the target gene among all of the vector functional elements. The best terminator elements were variants derived from the transcription termination region of the AOX1 gene, and the difference in the expression level of the target gene using different terminators was approximately 4.5 times. Based on the analysis of the obtained data, the optimal composition of the key functional elements of the expression vector was determined ; it included the promoter and terminator regions of the AOX1 yeast gene and one of the artificial leaders, mif4I or maxHH. β-glucanase, Komagataella kurtzmanii, yeast, secretion, strain producer The work was financially supported by the Ministry of Science and Higher education of the Russian Federation (Unique Project Identifier RFMEFI60717X0179) using the Unique Scientific Facility of the National Bio-Resource Center «All-Russian Collection of Industrial Microorganisms», NRC «Kurchatov Institute» - GOSNIIGENETIKA

Through the Lens of Gadamer’s Hermeneutics: In comparison between Amina Wadud’s and Mohammed Talbi’s Interpretations of Q. 4:34

SUHUF ◽  
2017 ◽  
Vol 9 (2) ◽  
pp. 193-214
Author(s):  
Afifur Rochman Sya'rani
Keyword(s):  
Gender Inequality ◽  
Married Couple ◽  
Contextual Approach ◽  
The Status ◽  
Similarities And Differences ◽  
The Difference ◽  
Muslim Scholars ◽  
The Way

Most of traditional Muslim exegetes interpret Q. 4:34 in terms of maintaining the superiority of men over women. Some progressive Muslim scholars then insist a contextual approach to the verse to criticize gender inequality. Among some progressive Muslim scholars, this article comparatively examines the interpretations of Amina Wadud and Mohammed Talbi of Q. 4:34. Although both of them propose a contextual reading of the verse, they have different intellectual background, approach and method in interpreting the Qur’ān. The questions are to what extent the similarities and differences of both Wadud’s and Talbi’s interpretation of Q. 4:34 and how far their interpretations reflect their respective intention and perspective? Applying Gadamer’s hermeneutical approach, the article concludes that [1] Both Wadud and Talbi argue that the verse does not establish the superiority of men over women, but acknowledges duties division among married couple; [2] the difference among their interpretations is on the status of relationship among married couple; [3] Wadud’s and Talbi’s interpretations represent their respective hermeneutical situations and the way they define ontologically the nature of  interpretation and Qur’anic hermeneutics affect on producing the meanings of the verse.

scholarly journals What Difference Does Posthumanism Make?

2021 ◽  
pp. 1-7
Author(s):  
Rachel J. Crellin ◽  
Oliver J.T. Harris
Keyword(s):  
Productive Force ◽  
The World ◽  
The Status ◽  
The Difference ◽  
The Relationship

In this paper we argue that to understand the difference Posthumanism makes to the relationship between archaeology, agency and ontology, several misconceptions need to be corrected. First, we emphasize that Posthumanism is multiple, with different elements, meaning any critique needs to be carefully targeted. The approach we advocate is a specifically Deleuzian and explicitly feminist approach to Posthumanism. Second, we examine the status of agency within Posthumanism and suggest that we may be better off thinking about affect. Third, we explore how the approach we advocate treats difference in new ways, not as a question of lack, or as difference ‘from’, but rather as a productive force in the world. Finally, we explore how Posthumanism allows us to re-position the role of the human in archaeology,

scholarly journals Enamel interproximal reduction during treatment with clear aligners: digital planning versus OrthoCAD analysis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Giuseppina Laganà ◽  
Arianna Malara ◽  
Roberta Lione ◽  
Carlotta Danesi ◽  
Simonetta Meuli ◽  
...  
Keyword(s):  
Treatment Plan ◽  
End Of Treatment ◽  
The Mean ◽  
The Difference ◽  
Dependent Sample ◽  
University Of Rome ◽  
The University ◽  
Enamel Reduction ◽  
Lower Arch

Abstract Background The aim of the study was to compare the amount of interproximal enamel reduction (IPR) provided on ClinCheck software with the amount of IPR carried out by the orthodontist during treatment with clear aligners. Methods 30 subjects (14 males, 16 females; mean age of 24.53 ± 13.41 years) randomly recruited from the Invisalign account of the Department of Orthodontics at the University of Rome “Tor Vergata” from November 2018 to October 2019, were collected according to the following inclusion criteria: mild to moderate dento-alveolar discrepancy (1.5–6.5 mm); Class I canine and molar relationship; full permanent dentition (excluding third molars); both arches treated only using Comprehensive Package by Invisalign system; treatment plan including IPR. Pre- (T0) and post-treatment (T1) digital models (.stl files), created from an iTero scan, were collected from all selected patients. The OrthoCAD digital software was used to measure tooth mesiodistal width in upper and lower arches before (T0) and at the end of treatment (T1) before any refinement. The widest mesio-distal diameter was measured for each tooth excluding molars by “Diagnostic” OrthoCAD tool. The total amount of IPR performed during treatment was obtained comparing the sum of mesio-distal widths of all measured teeth at T0 and T1. Significant T1–T0 differences were tested with dependent sample t-test (P < 0.05). Results In the upper arch, IPR was digitally planned on average for 0.62 mm while in the lower arch was on average for 1.92 mm. As for the amount of enamel actually removed after IPR performing, it was on average 0.62 mm in the maxillary arch. In the mandibular arch, the mean of IPR carried out was 1.93 mm. The difference between planned IPR and performed IPR is described: this difference was on average 0.00 mm in the upper arch and 0.01 in the lower arch. Conclusions The amount of enamel removed in vivo corresponded with the amount of IPR planned by the Orthodontist using ClinCheck software.

Sign in / Sign up

Export Citation Format

Share Document