Dóra Maurer: Proportions & Timing

KronoScope ◽  
2022 ◽  
Vol 21 (2) ◽  
pp. 132-156
Author(s):  
Carla Gabrí
Keyword(s):  
Social Relationships ◽  
Arm Movements ◽  
Early Time ◽  
Early Motion ◽  
Art Scene ◽  
Letterpress Printing ◽  
16Mm Film ◽  
Motion Studies ◽  
Historical Discourses

Abstract This paper aims at re-evaluating two of Hungarian artist Dóra Mauer’s films, the video work Proportions (1979) and the 16mm film Timing (1973/80). Both films follow a rigid structure. In Proportions, Maurer uses a paper roll to compare her own body measures repeatedly; in Timing, she repeatedly folds a white linen to compare the rhythm of her arm movements. Through her use of paper and the gesture of folding, the two films can be read as references to the very origin of the term format, as coined in early letterpress printing. When the notion of format is understood as a determination of a ratio and, as such, as an indexical reference to given social relationships (Summers, 2003), these films unfold sociocultural and political meanings. The present paper traces this spectrum of meaning through the pointed inclusion of historical discourses surrounding early motion studies, the art scene in socialist Hungary in the 1970s, and early time experiments before the advent of precision clocks.

scholarly journals DEVELOPMENT AND CAREER MANAGEMENT

2019 ◽  
Vol 31 (5) ◽  
pp. 1339-1344
Author(s):  
Baki Koleci
Keyword(s):  
Career Development ◽  
Social Relationships ◽  
Career Management ◽  
Personal Goals ◽  
Expert Opinions ◽  
The Family ◽  
The Subject ◽  
The Difference ◽  
The Individual

We, as individuals, continually through our lives, learn and acquire the knowledge, skill, and skill we expect to help us employ or apply appropriately in order to gain a living and secure our survival. Everyone wants to build a successful career with which he can be proud of his life. However, this is not always so easy and simple, it requires a lot of sacrifices, concessions, compromises with our partners, the family, close social relationships, and finally with ourselves. In this paper, the subject of the research is the determination of career development, career stages, career factors, then expert opinions, the difference between traditional and modern career views, goals pursued by individuals in the career, and so on, Career development can be seen as an experience of individuals (an internal career) and this is not related to an organization. Although the responsibility for career management is in the hands of individuals, individuals, however, organizations can play a key role in shaping and developing careers by providing help and providing support. Career development can not be pursued individually or separately from the personality as a whole, meaning it reflects on the context of life and the development of the person as a whole, not just personality as work. The main goal in career development is to realize the current and future needs and goals of the organization and individuals, which has to do more with developing employment opportunities and improving the skills needed for employment. Career success is reflected in the eyes of the individual and can be defined as a career pleasure through achieving personal goals related to the work, while at the same time enhancing the success and efficiency of the organization.

THE INTERPLAY OF PROMPT AND AFTERGLOW EMISSION IN GRB 060418

2008 ◽  
Vol 17 (09) ◽  
pp. 1343-1349 ◽  
Author(s):  
S. D. VERGANI ◽  
D. MALESANI ◽  
E. MOLINARI
Keyword(s):  
Gamma Rays ◽  
Spectral Properties ◽  
Gamma Ray ◽  
Early Time ◽  
Lorentz Factor ◽  
X Ray ◽  
Central Engine ◽  
Low Energies ◽  
Prompt Emission

We present observations of the early afterglow emission of GRB 060418. Thanks to the simultaneous coverage at optical, X-ray and gamma-ray wavelengths, we can detect and separate the external shock emission (visible in the optical and late X-ray data) and the central engine activity (early X and gamma rays). The two components are clearly distinguished based on temporal and spectral properties. The detection of the afterglow onset (in the optical) allows the determination of the fundamental fireball properties, namely its bulk Lorentz factor and total energy. The early time X-ray flare closely resembles the prompt emission gamma-ray pulses in its temporal profile, being wider at low energies and showing lags between the hard and soft bands. This provides a strong suggestion that X-ray flares are a continuation of the prompt emission.

scholarly journals PENGARUH KEADAAN DIRI,UNSUR PENYOKONG DAN FAKTOR DEMOGRAFI TERHADAP TEKAD KEWIRAUSAHAAN MAHASISWA PERGURUAN TINGGI DI PROVINSI RIAU

Perspektif ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 1-21
Author(s):  
Sukarni Sukarni ◽  
Norasmah Othman ◽  
Norasmah Othman
Keyword(s):  
Social Relationships ◽  
Achievement Motivation ◽  
Self Efficacy ◽  
Capital Social ◽  
Key Factors ◽  
Five Dimensions ◽  
Group Activities ◽  
Entrepreneurial Knowledge ◽  
Student Residence

This study identifies factors that influence the determination of entrepreneurial. Thereare five for influence elements of determination entrepreneurial: self-efficacy,achievement motivation, facilitates capital, social relationships and entrepreneurialknowledge. A questionnaire was distributed to 389 university students. Finding shownthat the majority of students agreed that entrepreneurial knowledge, self-efficacy,achievement motivation and facilitates capital of key factors do influencedentrepreneurial determination. AMOS path analysis was used to identify thecontribution of the direct and indirect influence of the five dimensions ofentrepreneurial determination. Several hypotheses have been tested and found thatentrepreneurial determination influenced by entrepreneurial knowledge, self-efficacy,achievement motivation and facilitates capital. However, gender, financial supportand group activities did not moderate the entrepreneurial determination, whereasstudent residence do moderate to entrepreneurship determination. Furthermore, selfefficacydo moderated by gender, student residence and group activities, but financialsupport do not moderate self-efficacy. Gender, student residence, financial supportand group activities did not moderate achievement motivation. Finally the studyproposes guidelines to develop an effective entrepreneurship curriculum for universityin the Riau Province.Key words: entrepreneurial determination, self-efficacy, achievement motivation,facilitates capital, social relationships, student residence, entrepreneurialknowledge

scholarly journals A suitable time point for quantifying the radiochemical purity of 225Ac-labeled radiopharmaceuticals

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
James M. Kelly ◽  
Alejandro Amor-Coarasa ◽  
Elizabeth Sweeney ◽  
Justin J. Wilson ◽  
Patrick W. Causey ◽  
...  
Keyword(s):  
Radiochemical Purity ◽  
Gamma Spectroscopy ◽  
Early Time ◽  
Secular Equilibrium ◽  
Data Set ◽  
Testing Procedures ◽  
Layer Chromatography ◽  
High Resolution Gamma Spectroscopy ◽  
Time Point

Abstract Background As 225Ac-labeled radiopharmaceuticals continue to show promise as targeted alpha therapeutics, there is a growing need to standardize quality control (QC) testing procedures. The determination of radiochemical purity (RCP) is an essential QC test. A significant obstacle to RCP testing is the disruption of the secular equilibrium between actinium-225 and its daughter radionuclides during labeling and QC testing. In order to accelerate translation of actinium-225 targeted alpha therapy, we aimed to determine the earliest time point at which the RCP of an 225Ac-labeled radiopharmaceutical can be accurately quantified. Results Six ligands were conjugated to macrocyclic metal chelators and labeled with actinium-225 under conditions designed to generate diverse incorporation yields. RCP was determined by radio thin layer chromatography (radioTLC) followed by exposure of the TLC plate on a phosphor screen either 0.5, 2, 3.5, 5, 6.5, or 26 h after the plate was developed. The dataset was used to create models for predicting the true RCP for any pre-equilibrium measurement taken at an early time point. The 585 TLC measurements span RCP values of 1.8–99.5%. The statistical model created from these data predicted an independent data set with high accuracy. Predictions made at 0.5 h are more uncertain than predictions made at later time points. This is primarily due to the decay of bismuth-213. A measurement of RCP > 90% at 2 h predicts a true RCP > 97% and guarantees that RCP will exceed 90% after secular equilibrium is reached. These findings were independently validated using NaI(Tl) scintillation counting and high resolution gamma spectroscopy on a smaller set of samples with 10% ≤ RCP ≤ 100%. Conclusions RCP of 225Ac-labeled radiopharmaceuticals can be quantified with acceptable accuracy at least 2 h after radioTLC using various methods of quantifying particle emissions. This time point best balances the need to accurately quantify RCP with the need to safely release the batch as quickly as possible.

scholarly journals The Open Cluster M67 as a Fundamental Standard of Reference for Stellar Properties

1985 ◽  
Vol 111 ◽  
pp. 361-364
Author(s):  
Kenneth Janes
Keyword(s):  
Open Cluster ◽  
Accurate Determination ◽  
Distance Modulus ◽  
The Sun ◽  
Distance Measurements ◽  
Photoelectric Photometry ◽  
Sources Of Error ◽  
Motion Studies ◽  
Stellar Properties

With the possible exception of the Hyades, M67 is the best-studied star cluster. Accurate photoelectric photometry exists well down onto the main sequence and proper motion studies have isolated cluster stars from the field. From photometry and spectroscopy, its composition is determined to be almost exactly the same as the Sun, with an age about one-half billion years less. This similarity to the Sun permits an accurate determination of distance to M67 independently of other distance measurements. Using the Sun as a reference, the distance modulus of M67 is found to be 9.48 mag. An extensive analysis of possible sources of error leads to an uncertainty (standard error) of ± 0.15 mag., with the chief sources of error being the color index of the Sun, the composition of the cluster, and its age. The M67 distance uncertainty compares favorably with Hanson's (1975) Hyades modulus of 3.29 ± 0.08.

The Value of Photoelectric Occultation Timings in Lunar Motion Studies

1971 ◽  
Vol 2 ◽  
pp. 587-588 ◽  
Author(s):  
Thomas C. Van Flandern
Keyword(s):  
The Other ◽  
The Moon ◽  
Observational Error ◽  
Additional Time ◽  
Current Application ◽  
Error Sources ◽  
Lunar Motion ◽  
Lunar Ephemeris ◽  
Motion Studies

AbstractThe two most important advantages of photoelectric timings of occultations over visual timings are accuracy and freedom from systematic error. The observational error is so small compared with uncertainties in the lunar ephemeris, star positions, limb corrections, and such, that the value of the observations will continue to increase as time goes on and the other error sources are eliminated.A recent result made possible largely by the availability of photoelectric timings over the last 20 yr is a new value for the secular acceleration of the Moon, with corresponding consequences for the Ephemeris Time scale.An important current application for simultaneous photoelectric and visual observations is the determination of ‘personal equation’ for the visual observers. Experiments so far indicate the visual observers require a minimum of 0.1 sec to detect that an event has occurred, plus additional time to react to it; hence, typical personal equations are around 0.4 sec.

scholarly journals Mathematical Simulation of Transport Kinetics of Tumor-Imaging Radiopharmaceutical99mTc-MIBI

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
O. N. Shevtsova ◽  
V. K. Shevtsova
Keyword(s):  
Tumor Imaging ◽  
Radioactive Decay ◽  
Early Time ◽  
Washout Rate ◽  
Late Time ◽  
Concentration Data ◽  
Proposed Model ◽  
Kinetics Of ◽  
Time Point

The proposed model describes in a quality way the process of tumor-imaging radiopharmaceuticalTc99m-MIBI distribution with taking into account radiopharmaceutical accumulation, elimination, and radioactive decay. The dependencies of concentration versus the time are analyzed. The model can be easily tested by the concentration data of the radioactive pharmaceuticals in the blood measured at early time point and late time point of the scanning, and the obtained data can be used for determination of the washout rate coefficient which is one of the existing oncology diagnostics methods.

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