bluuebunny/crossref_metadata_2025 huggingface dataset:
TheoDORE: A toolbox for a detailed and automated analysis of electronic excited state computations
Authors: Plasser F.
Published: February 2020

The advent of ever more powerful excited-state electronic structure methods has led to a tremendous increase in the predictive power of computation, but it has also rendered the analysis of these computations much more challenging and time-consuming. TheoDORE tackles this problem through providing tools for post-processing excited-state computations, which automate repetitive tasks and provide rigorous and reproducible descriptors. Interfaces are available for ten different quantum chemistry codes and a range of excited-state methods implemented therein. This article provides an overview of three popular functionalities within TheoDORE, a fragment-based analysis for assigning state character, the computation of exciton sizes for measuring charge transfer, and the natural transition orbitals used not only for visualization but also for quantifying multiconfigurational character. Using the examples of an organic push–pull chromophore and a transition metal complex, it is shown how these tools can be used for a rigorous and automated assignment of excited-state character. In the case of a conjugated polymer, we venture beyond the limits of the traditional molecular orbital picture to uncover spatial correlation effects using electron–hole correlation plots and conditional densities.
JUNGFRAU detector for brighter x-ray sources: Solutions for IT and data science challenges in macromolecular crystallography
Authors: Leonarski Filip , Mozzanica Aldo , Brückner Martin , Lopez-Cuenca Carlos , Redford Sophie , Sala Leonardo , Babic Andrej , Billich Heinrich , Bunk Oliver , Schmitt Bernd , Wang Meitian
Published: February 2020

In this paper, we present a data workflow developed to operate the adJUstiNg Gain detector FoR the Aramis User station (JUNGFRAU) adaptive gain charge integrating pixel-array detectors at macromolecular crystallography beamlines. We summarize current achievements for operating at 9 GB/s data-rate a JUNGFRAU with 4 Mpixel at 1.1 kHz frame-rate and preparations to operate at 46 GB/s data-rate a JUNGFRAU with 10 Mpixel at 2.2 kHz in the future. In this context, we highlight the challenges for computer architecture and how these challenges can be addressed with innovative hardware including IBM POWER9 servers and field-programmable gate arrays. We discuss also data science challenges, showing the effect of rounding and lossy compression schemes on the MX JUNGFRAU detector images.
Turns of the centuries. The Transkribus automated tool for recognition, transcription and translation of handwritten
historical documents
Authors: Vukčević Miodrag M.
Published: February 2020

The translation of handwritten historical documents faces many challenges due to variation in the writing style,
local language, and an inevitable language change. Even the transliteration from Cyrillic to Latin characters is standardized by
the bijective transliteration standard ISO 9. This presentation introduces a number of tools offered by Transkribus for the
automated processing of documents, such as Handwritten Text Recognition (HTR) and Document Understanding, which are needed for the
translation of historical documents. Next to the problem of decoding handwritten documents, written for example in Kurrentschrift
using ancient terminology, changed meanings and different spelling have additionally to be considered during the translation of
texts from earlier centuries. Resolution strategies on a case study show different methods for ensuring quality translations.
‘Cinema as a common activity’
Authors: Ozduzen Ozge
Published: February 2020

This paper is concerned with the ways in which mediating spaces like film festivals function as alternative public
spheres when social movements escalate, arguing that the Istanbul International Film Festival and Documentarist right before,
during and following the Gezi protests turned into politically and socially inclusive spaces for marginalised groups in Turkey. To
account for how audiences and organisers aimed to transform these mediating spaces into socially inclusive and heterogeneous
outlets during the Gezi protests, the paper relies on an audience ethnography in the sites of these film festivals from 2013 until
2017 including participant observation, go-alongs and in-depth interviews with audiences, film crews and organizers. Although the
spaces of these two film festivals functioned differently, the article shows that film festival spaces generally transformed into
cosmopolitan outlets in Istanbul in this period, opening room for a dialogue between marginalised and dominant groups, which was
fed by social movements
Influence of organised sports practice during adolescence on health of adult women with special emphasis on participation in aesthetic sports
Authors: Mayolas‐Pi C. , Sitko S. , Oviedo‐Caro M. A. , Bueno‐Antequera J. , Reverter‐Masià J. , Francín‐Gallego M. , Sarasa‐Oliván F. J. , Legaz‐Arrese A.
Published: February 2020

This study aimed to assess the differences in psychosocial health and cardiometabolic risk during adulthood in women based on previously organised sport (OS) participation during adolescence and current activity levels, with emphasis on participation in aesthetic sports. The study included 1947 women aged 18–55 years who were categorised into four groups: 355 aesthetic athletes during adolescence, 494 non‐ aesthetic athletes during adolescence, 791 non‐athletes during adolescence with similar current levels of physical activity (PA) to OS groups and 307 currently inactive non‐athletes during adolescence. Participants answered questionnaires regarding sport participation, psychosocial health and cardiometabolic risk. The results show that non‐athletes during adolescence who are currently inactive reported significantly lower psychosocial health and higher cardiometabolic risk scores. Women with currently homogenous PA levels (χ² = 0.514) reported similar physical quality of life (QoL), exercise addiction, anxiety and depression symptoms regardless of participation in OS during adolescence (P > .05), except aesthetic athletes who reported the worst sleep and mental QoL. Very high training volumes in aesthetic athletes did not influence psychological outcomes and cardiometabolic risk in adulthood compared to lower training volumes. In conclusion, the effects of PA during adulthood appear to be powerful enough to induce beneficial adaptations in health outcomes that match those observed in women who participate in OS during adolescence, except for aesthetic sports participants, who show a high risk of lower quality of sleep in adulthood. PA should be promoted in adults and especially women who have not participated in OS during adolescence.
Heart rate recovery responses after acute training load changes in top‐class water polo players
Authors: Botonis Petros G. , Arsoniadis Gavriil G. , Platanou Theodoros I. , Toubekis Argyris G.
Published: February 2020

The purpose of the study was to investigate the effects of acute training load changes of elite water polo players on heart rate recovery (HRR) responses after a standardized swimming test. Nine water polo players were tested after a two‐day light‐load and two‐day heavy‐load training. Preliminarily, critical swimming speed was calculated. Testing comprised of an intermittent 4 × 100‐m swimming separated by 10 s of rest with an intensity corresponding to 85% of their maximum speed previously attained during a 100‐m swim test followed immediately by assessment of HRR. Internal training load (ITL) was measured using the rating of perceived exertion and the duration of training sessions. The swimming speed corresponded to 1.43 ± 0.06 m·s−1 and 1.45 ± 0.06 m·s−1 after light‐load and heavy‐load training, respectively (p = 0.06, d = 0.74). ITL was increased in high‐load compared to light‐load training (p < 0.001, d = 11.54). The difference in HR at end of exercise (HR‐end) and after 60 s rest and the difference in mean HR during last min of exercise and HR after 60 s rest were higher in light‐load training (p < 0.05, d = 0.85–1.15). The absolute change in ITL was correlated with the respective change in the percentage change of HR‐end at 10 s of recovery (%HRR10s) (r = 0.72, p = 0.03). Significant correlation was observed between the percentage change of ITL with the %HRR10s (r = 0.67, p = 0.05). We conclude that HRR tracks acute changes in training load. The lower HRR following high‐load training likely indicates a blunted parasympathetic re‐activation.
Amplification performance outcome
Authors: Trimmis Nikolaos , Ziavra Nausica , Papadas Theodoros , Naxakis Stefanos
Published: February 2020

Purpose:

The aim of this study was the development of a simple instrument, in order to be established as a self-assessment tool, about the benefits from amplification systems in Greece. This instrument is called the Amplification Performance Outcome or APO.

Method:

The current scale is comprised of 6 subscales addressing different domains with a total of 30 items. A five-point Likert scale was used to capture data. The complete APO typically requires 18 min or less to complete with each subscale requiring less than 3 min. It was evaluated on 100 hearing aid users, ages between 23 and 88 years old, with mild to severe sensorineural hearing loss bilaterally. Data from 62 subjects were used to examine the test–retest properties of the instrument. All the participants were users of amplification with unilateral or bilateral fitting for about 4–12 weeks.

Results:

The overall mean scores (%) for positive, neutral and negative responses indicated a considerable overall benefit from hearing amplification. The positive responses occupy 73.6%, the negative responses occupy 15.9% and neutral responses occupy 10.5% of total responses. The psychometric properties of APO appear to be acceptable. The scale appears to have high face, content and convergent validity. Results also revealed high test–retest reliability and internal consistency.

Conclusion:

These results reveal that the APO scale is a potentially valuable clinical instrument, and may help to provide more standardization to the hearing aid evaluation process. Future research will be needed to obtain multiple outcome measures from large numbers of individuals to determine whether this self-assessment scale would suffice.
Safety analysis of the irradiation of Tellurium (Te) target in G.A. Siwabessy Reactor
Authors: Sutrisno  , Rohman Hakim Abdul Aziz , Purwadi
Published: February 2020

Safety Analysis of the Irradiation of Tellurium (Te) Target in G.A. Siwabessy Reactor. Providing public service becomes one of the priority programs made by the Head of BATAN, such a program is the radioisotope production of Iodine 131 (I-131), which emits gamma and beta that are utilized for medical purpose. The radioisotope can be produced by irradiating the target of Tellurium dioxide (TeO2) on the G.A. Siwabessy Reactor core. Tellurium dioxide (TeO2) is irradiated on the position of Central Irradiation Position (CIP) D-6 and E-7 because the Irradiation Position (IP) is used for Topaz irradiation and CIP (D-6, E-7) is used for the irradiation of Low Enriched Uranium (LEU). Based on the several safety requirements such as analyze the optimum amount of the Tellurium target on CIP (D-6, E-7) with Topaz and LEU. The scope of the research includes the reactivity disturbance, radial power peaking factor and thermohydraulic disturbance. The diffusion group constant of the model uses the program of WIMSD-5B and the result is used for calculating reactivity disturbance and radial power peaking factor with the program package of BATAN-2DIFF. The thermohydraulic disturbance is calculated with using the Generalized Gap Temperature Calculation (GENGTC) program. The calculation of the reactivity of 750 gram (6x125 gram) Tellurium is resulting the change of negative reactivity of-0.27% Δk/k and the value of radial power peaking factor is 1.34 and the temperature at the center of TeO2 target is 366.7°C and outside the capsule (Aluminum) is 58.39°C, if it is compared to the safety margin of ± 2% Δk/k, PPFrad max=2.6, melting point of Al=660°C, melting point of Te=449.5°C, so all the parameters still meets the safety requirement.
Ambient dose measurement from high natural background radiation (HNBR) in Botteng Utara Village, Mamuju-Indonesia
Authors: Shilfa S N , Jumpeno B Y E B , Nurokhim  , Kusdiana
Published: February 2020

The terrestrial environment is one of the contributors to natural background radiation. Mamuju Regency, located in the Province of West Sulawesi Indonesia is known as the high natural background radiation (HNBR) area due to its high terrestrial exposure. Botteng Utara Village is one of the areas with dose rates up to 5 mSv/y in Mamuju district. For this reason, measurements were taken to determine the ambient dose received by society. In situ measurements were carried out in Botteng Utara Village using 70 OSL (Type EX-OSLD Environment) installed in 70 houses. The selection of houses is made with various types of building materials, randomly selected from 10 hamlets with each of 7 houses per sub-village. Measurements were done for ± two months from February 20, 2019 to April 12, 2019. The range of ambient dose achieved by measurement was from 51 up to 176 mRem/h. Further investigation using a larger sample number and longer time should be performed to validate this study’s results. This result will serve as a baseline for further research regarding the possibility of radiation effects on the society in Botteng Utara Village in Mamuju district.
The assessment of mitotic and nuclear division indexes as biomarkers for estimating the risk on the health of residents exposed to the high natural radiation of Mamuju, West Sulawesi
Authors: Purnami Sofiati , Lubis Masneli , Suryadi  , Syaifudin Mukh
Published: February 2020

Cell proliferation is a potential biomarker and closely associated with the assessment of general cytotoxicity of chemical and physical agents under study. However, the utilization of these biomarkers in response to environmental stimuli such as natural radiation has not been adequately explored. This research aimed to assess the mitotic index (MI) and nuclear division index (NDI) in lymphocytes as biomarkers for predicting the risks on the health of residents living in high natural radiation area (HNRA) in Salletto and Ahu villages of Mamuju as a studied group. As a control group, people living in another region of Topoyo village were also studied. The observation of these both parameters was done according to the standard protocol as described by the International Atomic Energy Agency (IAEA). The result showed that the percentage of MI of lymphocytes obtained from the studied area was lower compared to those of the control area (6.48 vs. 9.41) whereas the percentage of NDI of lymphocytes obtained from the studied area was higher compared to those of control area (1.59 vs. 1.32). This finding is similar to previous studies in an adjacent area. The NDI obtained from manual counting was much lower than that obtained from the automatic machine for counting (1.59 vs. 22.46), of which it is due mainly to a factor in criteria for counting the cells. MI for the female is lower than that of male and there is a trend of decreasing mitotic index with increasing age in the same group. It is concluded that natural radiation exposure did not affect the proliferation of cells of local people which suggests a low risk of radiation-exposed related to inflammation.
Self-diffusion coefficient of fe, pb, ni and Cr by molecular dynamics simulation using the potential morse
Authors: Ma’nun Luq’il , Arkundato Artoto , Misto  , Purwandari Endhah , Sujito
Published: February 2020

The molecular dynamics simulation using the Morse potential has been applied to calculate the value of self-diffusion coefficients D(T) of some pure metals as Pb, Cr, Ni, and Fe. The simulation then was done using the MOLDY molecular dynamics program. The procedure to calculate these coefficients following several steps: first, determining the Morse potential parameters as

D

, a and r
0; second, simulating the material under consideration using Moldy based on the appropriate ensemble; third, diffusion coefficient calculation using the Green-Kubo method for specific temperature; and fourth, the temperature-dependent diffusion coefficient D(T) based on the Arrhenius. The simulation work has obtained the best results as following: for Pb metal the Morse potential parameter (a = 1.4795 A−1, r
0 = 3.733 Å, and

D
=
0.2348

eV

) with

D

(
T
)

=
9.68
×

10

−
9

exp

(

−
3890.79

R
T

)

[

m
2

/
s

]

; for Cr metal the potential parameters (

D
=
0.3292

eV

, a = 1.1005 A−1, and r
0 = 2.2032 Å), with

D

(
T
)

=
1.73
×

10

−
3

exp

(

−
8725.54

R
T

)

[

m
2

/
s

]

; for Ni metal the Morse potential parameter (

D
=
0.3784

eV

, a = 1.0649 A−1, r
0 = 2.085 Å), with

D

(
T
)

=
8.5
×

10

−
4

exp

(

−
15794.9

R
T

)

[

m
2

/
s

]

; and for Fe metal the potential parameter (

D
=
0.4174

eV

, a = 1.5974 A−1, r
0 = 2.840 Å) with

D

(
T
)

=
4.22
×

10

−
7

exp

(

−
5878.49

R
T

)

[

m
2

/
s

]

. The calculated diffusion coefficients of the work have significant application as for the corrosion study of steels in nuclear reactor design.
Influence of blankets bore pile on soil characteristics irradiator gamma merah putih of serpong
Authors: Saptowati Hasriyasti , Wahono Tri , Praptana  , Bagas Andrew
Published: February 2020

in determining the planning of a building foundation there are two things that must be considered in the bottom soil of the foundation, namely the carrying capacity of the permitted soil and the magnitude of the foundation decline. Both of these factors determine the stability of building construction. The stress due to the existence of the building above must be able to be carried by the soil layer under the foundation and must be safe from collapse. In general, the use of pile foundation is used if the subgrade under the building does not have enough bearing capacity to carry the weight of the building and the load above it, and also if the location of the hard ground has sufficient carrying capacity to carry the weight of the building above in a very deep position. At the location of the irradiator it is known from the results of soil testing obtained hard soil at a depth of 30 m so that pile drilling is carried out to that depth. When bore pile casting is carried out it turns out that the required volume of concrete exceeds the planned volume based on BQ (bill of Quantity), so we do the pile wrapping to prevent the mix concrete from flowing out. From the results of several method changes and packaging materials, the results show that the most effective two-layer geotextile wrapper reduces concrete wastage (which functions to carry forward the burden of the building structure above it from the surface of the ground to the layer of hard soil underneath).
Elemental Analysis of Wepal Sample Using INAA In The Framework of The 2017 IAEA Proficiency Test Program
Authors: Sutisna  , Alfian  , Istanto
Published: February 2020

The 2017 IAEA Proficiency Test Program has been carried out to improve the performance of the Neutron Activation Analysis (NAA) laboratory. This activity has been organized by the International Atomic Energy Agency (IAEA) cooperated with Wageningen Evaluating programs for Analytical Laboratory (Wepal). Eight samples of ISE (soil samples) and IPE (plant samples) obtained from Wepal under the 2017 Proficiency Test program. Moisture content has been determined using a gravimetric method at 105-110 C and 100-105 for ISE and IPE samples respectively. Target irradiation was carried out for long, medium, and short irradiation using a thermal neutron flux of about 2.3x1013 n.cm−2.s−1 at the rabbit facility of GA Siwabessy reactor. Elemental analysis has been done using kay zero (k0) and comparative method of Instrumental Neutron Activation Analysis (INAA). On the kay zero-INAA method, the Al-0.1%Au alloy of IRMM-530R has been used as a flux monitor. Short half-life radionuclide was calculated using an Excel program for the comparative method and correction for a dead and counting time was applied. Quantitative determination has been carried out on a dry weight basis. The water content of the IPE sample was higher than that of the ISE sample. The result of the moister content of the IPE sample was in the range of 8% to 10%; meanwhile the moister content of the ISE sample was 2% to 6%. The elements detected on the IPE samples were less than that on the ISE sample. The elements of Na, Mn, V, Cl, Sc, Fe, Co, Zn, As, Br, Rb, Zr, Sb, Cs, Ba, La, Ce, U, and Th have been determined on ISE sample. In the meantime, for IPE sample, the elements of K, Na, Mn, Cl, Mg, Al, Ca, Cr, Fe, Co, Zn, Br, Rb, Sr, Sb, Cs, La, and Th can be evaluated quantitatively. Most of the elements evaluated have Z-score and Zeta-score of-3 to +3, which indicate good analytical performance for some elements, but for the element, some of them are out layer.
Optimization of the extraction process in the synthesis of high specific activity Molybdenum-99 by Szilard Chalmers reaction
Authors: Febrian Muhamad Basit , Fadhillah Firdha Nur , Agma Muldjadji
Published: February 2020

Molybdenum-99 (99Mo) is a parent radioisotope of technetium-99m (99mTc) which is widely used as diagnostic radiopharmaceutical because of its short half-life and ideal gamma-ray energy of 140 keV. Separation of 99mTc and 99Mo is mainly carried out using a radioisotope generator of 99Mo / 99mTc. Alumina column inside the generator has a low absorbency capacity of Mo (20 mg Mo / g alumina). Low alumina capacity requires 99Mo with high specific activity in order to minimize the amount of alumina so that the generator size could be kept as small and simple. High specific activity 99Mo alternatively can be obtained by Szilard Chalmers’s reaction in irradiated molybdenum phthalocyanine (MoPc) target material. The purpose of this study was to optimize the extraction condition of 99Mo from irradiated MoPc. The study was conducted with stages consisting of the determination of the number of solvents, the effect of extraction time, and Physico-chemical characterization of 99Mo solution. 5-gram MoPc was irradiated in TRIGA Reactor Bandung for 3 days with 5.1012 n.s−1.cm−2 neutron flux. Extraction optimization was carried out using THF, DMSO and NaOH 3M solvents with a ratio of solvent : MoPc (v(ml):w(mg)) were 1: 5, 1:10, 1:25, 1:50, and 1:75. Extraction time was varied for 1, 2, 3, 4, and 5 hours. 3M NaOH with a volume ratio of 1: 5 with an extraction time of 1 hour was considered as an optimum condition to extract 99Mo from MoPc. This condition produced an extraction yield of 54.21% and an enrichment factor of 322.53 times with 95% radiochemical purity as (99MoO4)2-.
Design of the controller module of mobile carrier radioactive source
Authors: Atmoko D F , Triyanto J , Amin H D M , Harahap F , Jayadiharja T
Published: February 2020

A control module for mobile carrier radioactive source has been designed. Mobile carrier radioactive source is a tool used to carry out testing for radiation characteristics both statically and dynamically and to conduct calibration on the Radiation Portal Monitor according to the requirements of SNI IEC 62244-2016. The control module is designed to meet the that requirements, it can set a carrier speed of at least 8 km/h, it can adjust the height of the radioactive source between 1 m and 2.5 m, it has automatic forward and backward direction mode. Furthermore, the mobile carrier can be controlled remotely for personnel tester safety. The control module can stop the mobile carrier suddenly when an emergency occurs. The mobile carrier uses a portable power supply so that it can move freely and easily shifted. To meet these requirements, the driving power of the carrier a motor of 24-volt dc with 250 watts. The radioactive source uses a driving power of 12-volt dc motor with a minimum lift power of 5 kg. The control module designed uses a microcontroller with an android application-based interface that is connected by wireless. In the android application there are virtual numbers and input buttons to give commands to the control module. The application can also receive carrier speed information and the height of the radioactive source. To break the power of driving motor of carrier and the driving power of the lifter of the radioactive source, the mobile carrier uses two-level relays, namely low current conductivity relays and relays with high current conductivity. Next in order to move forward and backward automatically, at each end of the carrier is equipped with a limit switch. The button and top position barriers on the radioactive source lifter use a limit switch.
Assessment of heavy metals concentration in the water around the area of Adipala Cilacap steam power plant using neutron activation analysis
Authors: Rozana K , Sukirno  , Prabasiwi D S , Murniasih S
Published: February 2020

This research was conducted to assess the concentration of hazardous heavy metals (Cu, Zn, As, Cd, and Cr) in water wells and rivers, around the Adipala Cilacap steam power plant, using neutron activation analysis method. Sample of wells water and river water were taken around the Adipala Cilacap steam power plant. Samples were irradiated with pneumatic facility and Lazy Suzan in the Kartini Research Reactor, at a thermal neutron flux of approximately 0.58x1011 n.cm−2.det−1. The average concentration of hazardous heavy metals has the smallest metal value of Cr with a value of 0.0006 mg/L and the highest metal Cu with a value of 0.057 mg/L, which is examined in water wells following a decrease in the order of Cu > Zn > As > Cd > Cr. The five hazardous heavy metals under the maximum standard recommended by the WHO/USEPA and Minister of Health’s Regulation No. 492. In addition to the hazardous heavy metals, there are 13 other heavy metals that determined its concentration (Al, Ba, Mg, K, Fe, Na, Mn, Ti, La, Ce, Sm, Cs, and V), and obtained the results of the metal concentrations Al exceeds the threshold allowable by Minister of Health’s Regulation No. 492 the Year 2010.
Preparation of bacterial cellulose-based adsorbent by simultaneous irradiation method: synthesis and characterization
Authors: Oktaviani Oktaviani , Puspitasari Tita , Pangerteni Dewi Sekar , Indriyati Indriyati , Yunus Ade Lestari
Published: February 2020

The adsorbents based on bacterial cellulose matrices, i.e. bacterial cellulose-co-(poly)acrylamide (BC-PAAM) and bacterial cellulose-co-(poly)acrylic (BC-PAA) has been successfully synthesized using polymerization radiation technique by gamma rays. The irradiation doses used in this study were 25, 50, 75, 100, and 150 kGy, with the dose rate of 5 kGy/h. The results showed that the optimum dose for synthesizing the BC-PAAM by using the simultaneous technique was 50 kGy, with the optimum gel fraction was 90.04 % obtained for mass ratio among acrylamide (AAM) and bacterial cellulose (BC) was 1:4. Meanwhile, the optimum dose for synthesizing the BC-PAA by using the similar technique was 75 kGy, with the optimum gel fraction was 94.27 % for the mass ratio between acrylic (AA) and bacterial cellulose (BC) was 2:3. The Fourier Transform Infrared spectroscopy (FTIR) spectra showed that the AA and AAM had been successfully grafted onto the BC. The increasing of heat resistance of the grafted adsorbent was indicated by Differential Scanning Calorimetry (DSC) analysis.
Application of thomas fermi model on the study of the transition phase from the inner crust to the core of neutron star
Authors: Lathifa I , Sulistyani E T
Published: February 2020

The study of the Thomas Fermi model and its application on the study of the inner crust of neutron star has been done in order to explain pasta phase (the geometric structure changing of atomic nuclei from spherical ones to homogenous liquid) on the transition area from the inner crust to the core of neutron star. The study was carried out by the Wigner Seitz approach on the inner crust that is obtaining the total energy equation as a function of the density of the system, as a Thomas Fermi’s model. In this study Thomas Fermi’s model explains atomic nuclei that consist of Fermion gas in a system of functional total energy to density by taking into account the contribution of kinetic energy, potential energy and the contribution of interactions between particles. The energy state equation obtained was used to explain the effect of increasing density on the inner crust energy and explain the pasta phase through the interpretation of the graph of Thomas Fermi energy per baryon as a function of baryon density for every geometric structure of atomic nuclei.
Synthesis of Zirconium Oxychloride and Zirconia Low TENORM by Zircon Sand from Landak West Kalimantan
Authors: Poernomo H , Sajima  , Pusporini N D
Published: February 2020

In order to enhance the added value of zircon minerals (ZrSiO4) derived from tailing gold mining in Mandor, Landak, West Kalimantan; the hydrometallurgical process is needed to obtain zirconium products such as zirconium Oxychloride (ZrOCl2.8H2O) and zirconia (ZrO2). Zirconium products that are sold must meet the requirement of Technologically Enhanced Naturally Occurring Radioactive Material (TENORM) or (ThO2 + U3O8) is below 500 ppm. The purpose of this research was to process zircon sand with TENORM content 1784 ppm to be ZrOCl2.8H2O and ZrO2 low TENORM. Zircon sand processing has been carried out through melting zircon sand with NaOH to bind Zr became Na2ZrO3 and Si as the impurities to become Na2SiO3, water leaching to separate Na2ZrO3 from Na2SiO3 and other impurities, acid leaching (HCl) to convert Na2ZrO3 to be zirconium oxychloride low Si (ZOC-1) then ZOC-1 to be zirconium sulfate base (ZBS), ZBS then being deposited to be ZrO(OH)2, ZrO(OH)2 converted to be zirconium oxychloride low TENORM (ZOC-2), ZOC-2 then being crystallized to be ZrOCl2.8H2O and calcinated to be zirconia. The results showed that zircon sand from Mandor, Landak, West Kalimantan could be synthesized into ZrOCl2.8H2O with NORM 1.2586 ppm and zirconia with NORM = 3.5511 ppm, both products have met the industrial-grade requirement.
Gas flow control design vapor deposition in chemical facilities
Authors: Dermawan T , Priambogo N P , Rianto S
Published: February 2020

Design of gas flow control in LabVIEW based chemical vapor deposition facilities. To make the TRISO layer in nuclear fuel, argon, acetone, MTS, hydrogen and propelling gas are used. Currently, the regulation of gas flow in fluidized bed chemical vapor deposition facilities is done manually. Coating by adjusting the flow rate of 2 different gas alloys. The system is designed to obtain a proper coating, using Arduino to control the servo motor which regulates the gas valve. The results obtained that the valve can rotate between the range of 0 degrees to 180 degrees, with the addition of 0.5 degrees per step.
Testing and evaluation of velocity selector control system of small angle neutron scattering spectrometer
Authors: Suparno N , Bharoto  , Patriati A
Published: February 2020

Testing and evaluation of velocity selector control system of small angle neutron scattering (SANS) spectrometer has been done. It applied a unit of speed control variable AC, Optidrive Invertek Drives. This system is designed to be manually controlled and computerized. To control the Optidrive in manual mode, it can be done by keypad on the unit. The Optidrives can be controlled using computer by connecting the unit into a computer via USB port and OptiTools Studio software. Optidrive Invertek Drives need alternative current (AC) voltage one phase 220 volt with three phase out 220 volt. This out voltage is used as voltage source for moving the motor of disk in SANS neutron velocity selector. The speed of the disk in SANS neutron velocity selector is changed by adjusting the frequency from the Optidrive Invertek Drives. The numbers of speed of the disk determine the neutron wavelength passed through SANS neutron velocity selector. It is observed that every increasing frequency of 1 Hz, it will increase the disk speed by 59.929 rpm. The calibration that has been done for this system using silver behenate, obtain wavelength of the neutrons dependent to the disk speed. They are 3.10, 3.09, 3.41, 3.76, 4.23, 4.71, and 5.39 Å for disk speed 6500, 6000, 5500, 5000, 4500, 4000, and 3500 rpm respectively.
Performance analysis of digital X-ray radiography system in radiometallurgy installations for pebble bed fuel imaging
Authors: Ismarwanti Sri , Rahmatullah Helmi Fauzi , Artika Refa , Sigit Rohmad , Ajiriyanto Maman Kartaman , Setiawan Jan
Published: February 2020

Research and studies on pebble bed fuel to support the realization of RDNK based on HTGR have been carried out by BATAN. Indicators of reliability of nuclear fuel are able to fulfill the criteria for irradiation testing and qualify in post irradiation tests. At present, Radiometallurgy Installation as a post irradiation examination location has completed installation of X-ray radiography equipment for non-destructive testing. Performance analysis includes the function of tools and the completeness of test support facilities. Digital X-ray radiography has a maximum voltage capability of 320 kV. X-rays are directed vertically towards the sample and sensor film. X-rays captured by film sensors can be seen directly in real time on a computer. To put the pebble bed fuel is provided a special holder. The X-ray radiography system trials were carried out on a pebble bed fuel model. The purpose of the trial to find out the performance of X-ray radiography systems in capturing the image of the pebble bed fuel model. The fuel model is made of ceramic which simulates graphite and lead material that simulates TRISO. The results obtained indicate that the X-ray digital radiography system is able to capture the image of the pebble bed fuel model with a good image.
Ouw Natural Clay-Titanium Oksida (LaO-TiO2) Composite Adsorption Ability On Lead (Pb) Metal
Authors: Bijang C M , Nurdin M , Azis T , Sekewael S J , Wattimena H
Published: February 2020

Research has been conducted to synthesize and characterization composite LAO-TiO2 based on LAO mass variation and calcination temperature and its application as an adsorbent of lead metal (Pb). Characterization is done using X-Ray Diffraction (XRD) at an angle of 2θ: 5-60° of LAO mass variation for pillarization, which are 2, 3, and 5 with calcination temperature of 200, 250 and 300°C. The testing of the composite LAO-TiO2 as lead (Pb) metal absorbent using Atomic Absorption Spectroscopy (AAS). The result shows the most significant basal spacing (d-spacing) is on mass variation 5 g (K5) after calcination with temperature 200 10.19 Å. Composite LAO-TiO2 Application as lead (Pb) metal adsorbent shows the adsorption capacity (Q) obtained ranges from 4.4-4.9 mg/g.
Antioxidant and Anticancer Activity Tests of “Pasote” Leaf Water Extracts (Dysphania ambrosioides L.) by In Vitro Method in Leukemia Cancer Cells
Authors: Pandiangan D , Lamlean P Y , Maningkas P F , Nainggolan N , Unitly A J A
Published: February 2020

The purpose of this study was to obtain research information about the anticancer and antioxidant potential of Pasote leaf powder extract. Anticancer testing was carried out by the MTT test method on P388 leukemia cells. The antioxidant test was carried out by the DPPH method and determined by UV-Vis Spectro at a wavelength of 517 nm. Data analysis with the Origin Lab program for anticancer, and Excel programs for antioxidant data analysis. Pasote water extract has anticancer activity potential category as an anticancer with IC50 of 0.105 μg / mL. The results of the antioxidant testing of Pasote water included in the medium category with an IC50 value of 50.736 µg/mL. This shows that Pasote leaf water has the potential to be made antioxidant and is not different from antioxidant vitamin C. The conclusion is Pasote leaf water has the potential to be used as an anticancer and antioxidant.
Biolarvicide of Herba Ethanol Extract of Phyllanthus niruri L on Aedes aegypti Mosquito Larva Vector Of Dengue Hemorrhagic Fever Disease (DHF)
Authors: Moniharapon D D , Ukratalo A M , Hendrajid Z , Ramadhany M R
Published: February 2020

Until now, Dengue Hemorrhagic Fever (DHF) has not found a cure or vaccine, so one of the prevention is to break the chain of transmission of this disease. Phyllanthus niruri L is a wild plant that can live in moist and rocky places. This plant has the ability to cure hepatitis, anti-mosquito, anti-inflammatory, fever, launching urine, expectorant, launching menstruation and increasing appetite. This research aims to determine the biolarvaside and LC50 and LC90 values of the Phyllanthus niruri L herbal extract against Aedes aegypti mosquito larvae. This study uses a completely randomized design (CRD) with 5 treatments and 3 replications. Three hundred instar mosquito larvae III were put into each container containing the treatment determined P0 = without administration of extract, P1 = given abate 1% (Control +), P2 = given Ethanol Extract Herb Phyllanthus niruri 25% concentration, P3 = Given Ethanol Extract Herba Phyllanthus niruri concentration of 50% and P4 = Given Ethanol Extract Herba Phyllanthus niruri concentration of 75%. Each container is filled with 20 larvae. Observation of the larvicidal activity of the ethanol extract of the herb Phyllanthus niruri L was carried out at 0, 6, 12, 18 and 24 hours. Data from observations of Aedes aegypti mosquito larvae mortality were then analyzed using ANOVA. To determine the value of LC50 and LC90 extract of Phyllanthus niruri L, it was analyzed using probit analysis. The results showed that the calculated F value was 281,558 with a F probability of 0,000 (p <0.05), which means that the ethanol extract of the herb Phyllanthus niruri L affected the mortality of Aedes aegypti larvae. LC50 value of 2.644% with an upper limit of 1.040 and a lower limit of 3.674. While the LC90 value of 5.772% with an upper limit of 4.424 and a lower limit of 12.042.
Geometrically partial actions
Authors: Hu Jiawei , Vercruysse Joost
Published: February 2020

We introduce “geometric” partial comodules over coalgebras in monoidal categories as an alternative notion to the notion of partial action and coaction of a Hopf algebra introduced by Caenepeel and Janssen. The name is motivated by the fact that our new notion suits better if one wants to describe phenomena of partial actions in algebraic geometry. Under mild conditions, the category of geometric partial comodules is shown to be complete and cocomplete and the category of partial comodules over a Hopf algebra is lax monoidal. We develop a Hopf-Galois theory for geometric partial coactions to illustrate that our new notion might be a useful additional tool in Hopf algebra theory.
On the differential geometry of holomorphic plane curves
Authors: Deolindo-Silva Jorge Luiz , Tari Farid
Published: February 2020

We consider the geometry of regular holomorphic curves in

C

2

\mathbb C^2

viewed as surfaces in the affine space

R

4

\mathbb R^4

. We study the

A

\mathcal A

-singularities of parallel projections of generic such surfaces along planes to transverse planes. We show that at any point on the surface which is not an inflection point of the curve there are two tangent directions determining two planes along which the projection has singularities of type butterfly or worse. The integral curves of these directions form a pair of foliations on the surface defined by a binary differential equation (BDE). The singularities of this BDE are the inflection points of the curve together with other points that we call butterfly umbilic points. We determine the configurations of the solution curves of the BDE at its singularities. Finally, we prove that an affine view of an algebraic curve of degree

d
≥
2

d\ge 2

in

C

P
2

\mathbb CP^2

has

8
d
(
d
−
2
)

8d(d-2)

butterfly umbilic points.
𝐴_{∞}-structures associated with pairs of 1-spherical objects and noncommutative orders over curves
Authors: Polishchuk Alexander
Published: February 2020

We show that pairs

(
X
,
Y
)

(X,Y)

of

1
1

-spherical objects in

A
∞

A_\infty

-categories, such that the morphism space

Hom
⁡
(
X
,
Y
)

\operatorname {Hom}(X,Y)

is concentrated in degree

0
0

, can be described by certain noncommutative orders over (possibly stacky) curves. In fact, we establish a more precise correspondence at the level of isomorphism of moduli spaces which we show to be affine schemes of finite type over

Z

{\Bbb Z}

.
Effect of neuronal nitric oxide synthase serine-1412 phosphorylation on hypothalamic–pituitary–ovarian function and leptin response
Authors: Guerra Damian D , Bok Rachael , Cari Evelyn Llerena , Nicholas Cari , Orlicky David J , Johnson Joshua , Hurt K Joseph
Published: February 2020

Hypothalamic neuronal nitric oxide synthase (nNOS) potentiates adult female fertility in rodents by stimulating gonadotropin releasing hormone (GnRH) secretion, which in turn promotes luteinizing hormone (LH) release and ovulation. The mechanism of hypothalamic nNOS activation is not clear but could be via nNOS serine1412 (S1412) phosphorylation, which increases nNOS activity and physiologic NO effects in other organ systems. In female rodents, hypothalamic nNOS S1412 phosphorylation reportedly increases during proestrus or upon acute leptin exposure during diestrus. To determine if nNOS S1412 regulates female reproduction in mice, we compared the reproductive anatomy, estrous cycle duration and phase proportion, and fecundity of wild-type and nNOS serine1412➔alanine (nNOSS1412A) knock-in female mice. We also measured hypothalamic GnRH and serum LH, follicle stimulating hormone (FSH), estradiol, and progesterone in diestrus mice after intraperitoneal leptin injection. Organ weights and histology were not different by genotype. Ovarian primordial follicles, antral follicles, and corpora lutea were similar for wild-type and nNOSS1412A mice. Likewise, estrous cycle duration and phase length were not different, and fecundity was unremarkable. There were no differences among genotypes for LH, FSH, estradiol, or progesterone. In contrast to prior studies, our work suggests that nNOS S1412 phosphorylation is dispensable for normal hypothalamic–pituitary–ovarian function and regular estrous cycling. These findings have important implications for current models of fertility regulation by nNOS phosphorylation.
Weak Correlation between Nucleotide Variation and Recombination Rate across the House Mouse Genome
Authors: Kartje Michael E , Jing Peicheng , Payseur Bret A
Published: February 2020

Positive selection and purifying selection reduce levels of variation at linked neutral loci. One consequence of these processes is that the amount of neutral diversity and the meiotic recombination rate are predicted to be positively correlated across the genome—a prediction met in some species but not others. To better document the prevalence of selection at linked sites, we used new and published whole-genome sequences to survey nucleotide variation in population samples of the western European house mouse (Mus musculus domesticus) from Germany, France, and Gough Island, a remote volcanic island in the south Atlantic. Correlations between sequence variation and recombination rates estimated independently from dense linkage maps were consistently very weak (ρ ≤ 0.06), though they exceeded conventional significance thresholds. This pattern persisted in comparisons between genomic regions with the highest and lowest recombination rates, as well as in models incorporating the density of transcribed sites, the density of CpG dinucleotides, and divergence between mouse and rat as covariates. We conclude that natural selection affects linked neutral variation in a restricted manner in the western European house mouse.
Examining the Moderating Role of a Mediterranean Diet in the Relationship Between Perceived Stress and Cognitive Function in Older Adults
Authors: D’Amico Danielle , Huang Vivian , Fiocco Alexandra J
Published: February 2020

Objectives

Perceived stress and adherence to a Mediterranean diet pattern have been identified as independent predictors of cognitive function in older adulthood; however, no studies to date have examined the interaction between perceived stress and diet adherence on cognitive health. This cross-sectional study investigated the synergistic effect of perceived stress and adherence to a Mediterranean diet pattern on cognitive function in 192 nondemented older adults aged 60–95 years.

Method

Participants completed a Food Frequency Questionnaire (FFQ) and the Perceived Stress Scale (PSS-10). Executive functioning was assessed using the Trail Making Test-Part B (TMT-B) and episodic memory was assessed using the immediate and delayed free recall subscales from the California Verbal Learning Test (CVLT-II).

Results

Moderation analyses revealed that higher perceived stress was associated with worse executive functioning at low levels of Mediterranean diet adherence (B = 1.75, SE = 0.67, p = .009), but not at moderate and high levels of Mediterranean diet adherence (ps > .05). Perceived stress was not associated with episodic memory, irrespective of Mediterranean diet adherence.

Discussion

Findings provide preliminary evidence that the association between higher perceived stress and poorer executive function may be dependent on diet intake. Additional research is needed to confirm these findings.
‘O’ofaki: a health promotion and community development concept to bring Pasifika people together
Authors: Ofanoa Malakai , Paynter Janine , Buetow Stephen
Published: February 2020

Stable, healthy families are the loto or heart of strong Pacific communities. This paper addresses the problem of a decline in the strength of Pacific families. It introduces and discusses the Tongan concept of O’ofaki, as the way in which shared, core relational commitments can bring Pasifika peoples together to support one another for health and community development. This process is based on a reciprocal sharing of social capital to promote cultural solidarity and social justice. We describe two studies by the lead author, through which the concept of O’ofaki emerged. The first study utilized an action research model while the second study focused on two Pasifika-centric research approaches: talanga, which is a Tongan word for interactive talking for a purpose, and the kakala (Tongan garland) research approach. The latter approach is incorporated within a general inductive methodology as well as luva—the dissemination of the results. Finally, the paper focuses on the components of O’ofaki and its application to Pasifika communities.
“De-gendering” the civil status? A public law problem
Authors: Osella Stefano
Published: February 2020

This article raises the problem of the inclusion of gender in the civil status of the person and argues that public lawyers are now called on to understand whether a genderless civil status is constitutionally permissible and desirable. Admittedly, this is not an easy task. Gender categories are deeply rooted in our legal systems. Arguably, they may prove necessary for the achievement of constitutionally grounded public interests and protect fundamental rights, such as equality between men and women. The task that public lawyers are faced with is further complicated by the affirmation of the right to gender recognition based on self-determination, and the inclusion of nonbinary genders in the law. These developments are indeed profoundly transforming the way in which gender is registered and controlled. Importantly, they put in doubt the effectiveness of gender as a criterion of legal categorization.