Scale Test Results Research Articles

Contributions of TCA-KTTO-modified quartz tailings and CPE toughener in PVC composites to enhance the mechanical-thermal performance

Large volumes of quartz tailings (QT) are currently stockpiled, which are difficult to treat effectively. Utilizing QT as a filler for high-demand polymeric materials is an effective strategy for large-scale and high-value utilization of solid waste. It is consistent with the goal of sustainable development. The mechanical performance and thermal stability of commercially available polyvinyl chloride (PVC)–based composites are limited due to the agglomeration of inorganic filler and low inorganic–organic interfacial compatibility. mQT/PVC and chlorinated polyethylene (CPE)–mQT/PVC composites were fabricated via dry modification, CPE toughening treatment, and open refining hot-pressing. The coupling agent molecules were grafted onto the mQT surface via Si-O-Ti bonding. mQT was uniformly dispersed and tightly adhered in the PVC matrix, particularly at a titanate coupling agent dosage of 2.0 wt%. The density, surface hardness, Young’s modulus, flexural modulus, and thermal conductivity of 50 wt%-mQT/PVC increased by 28.50%, 19.64%, 247.94%, 88.61%, and 153.11%, respectively, compared with those of pure PVC. T40 wt% for 50 wt%-mQT/PVC reached 487.39 °C. After toughening treatment, the impact strength of 15.0 phr-CPE-mQT/PVC increased by 47.38% compared to that of mQT/PVC. Pilot scale test results show that mQT/PVC and CPE-mQT/PVC composite plates, and CPE-QT/CaCO3/PVC co-extruded hollow floors met the Chinese standard GB/T 24508–2020. The mQT/PVC and CPE-mQT/PVC composites had excellent mechanical properties and high thermal stability, thermal conductivity, and glass transition temperature. This study provides an economical QT/PVC composite and proposes a sustainable strategy for the resource utilization of solid waste.

ImhoflotTM Flotation Cell Performance in Mini-Pilot and Industrial Scales on the Acacia Copper Ore

The present work investigates a comparative study between mechanical and ImhoflotTM cells on a mini-pilot scale and the applicability of one self-aspirated H-16 cell (hybrid ImhoflotTM cell) on an industrial scale on-site. The VM-04 cell (vertical feed to the separator vessel with 400 mm diameter) was fabricated, developed, and examined. The copper flotation experiments were conducted under similar volumetric conditions for both the ImhoflotTM and mechanical flotation cells keeping the rest of the parameters constant. Further, one H-16 cell was positioned at four different stages in the Gökirmak copper flotation circuit of the Acacia (Türkiye) copper beneficiation plant, i.e., at (i) pre-rougher flotation, (ii) rougher concentrate, (iii) cleaner-scavenger tailing, and (iv) first cleaning concentrate aiming at enhancing the flotation circuit capacity through flash flotation in the rougher stage, reducing copper grade in the final tailing, and increasing cleaning throughput, respectively. Comparative copper flotation tests showed that ultimate recoveries using the ImhoflotTM and mechanically agitated conventional cells were 94% and 74%, respectively. The industrial scale test results indicated that locating one pneumatic H-16 cell with the duty of pre-floating (also known as flash flotation) led to the enrichment ratio and recovery of 4.84 and 89%, respectively. Positioning the H-16 cell at the cleaner-scavenger tailings could diminish the copper tailings grade from 0.43% to 0.31%. Further, a relatively greater enrichment ratio and copper recovery were obtained using only one ImhoflotTM cell (1.76 and 64%) in comparison with employing four existing mechanical cells (50 m3, each cell) in series (1.45 and 60%) at the first cleaner stage.

Scaling laws of low-velocity impact response for RC beams: Impact force and reaction force

Predicting the low-velocity impact response of the prototype based on the scaled test results is one of the significant topics in structural design and protection. Thus, reliable similarity laws are required to bridge the dynamic similarity between models and prototypes. In this study, numerical modeling was carried out by considering plastic damage and strain rate effects. Then, the impact responses of four series reinforced concrete beams satisfying traditional similarity laws were analyzed. The largest beam section size reached 600 mm × 1000 mm. The scaling effects on the impact force profiles (comprising three Types) and reaction force profiles of the beam were investigated. Several characteristic points were defined for the available simplified profiles of impact and reaction forces. It is shown that the scaling effects on each characteristic are not consistent. As the theoretical scale factor increases, the characteristics such as the peak impact force, the positive peak of the reaction force, and its plateau satisfy the traditional similarity law, whereas the characteristics such as the impact force duration and the negative peak of the reaction force do not. Therefore, modified dynamic scale factors for the characteristics of impact and reaction force profiles from models to prototypes were proposed. Based on the suggested scaling laws, the simplified profiles of impact and support reaction forces of the prototype can be predicted. It is expected that it will help researchers to conduct experimental studies and optimized designs on structural impact resistance.

Aplikasi Media Pembelajaran Tumbuhan Langka Indonesia menggunakan Augmented Reality berbasis Android

The absorption and understanding of grade 2 students at SDN SINDUADI 1 in learning about rare plants is still lacking, resulting in students having little or no knowledge of Indonesia's rare plants. Using smartphones as a learning medium is an example of utilizing today's technology. The use of technology in education supports teachers and students in creating creative, innovative, educational, and interactive learning activities. The aim of this research is to create learning media using augmented reality technology to increase students' absorption, understanding, and interest in learning about rare Indonesian plants. This research uses the research and development method to develop products and test their level of effectiveness. System development uses the waterfall SDLC (Software Development Life Cycle) model, including requirements analysis, modeling, implementation, testing, and maintenance stages. Data collection was done through literature study techniques, observation, and questionnaires. Application testing in this research used an alpha test by us and a beta test in the form of a questionnaire using a random sampling technique carried out by nine user samples taken from 30% of the population. The results of this research show that combining augmented reality technology with educational games can support students' absorption and understanding of learning about rare Indonesian plants. Indonesian rare plant learning media shows the feasibility of the media, getting a score of 95.6%. Based on the Likert scale test results, it was concluded that the application for learning rare Indonesian plants using AR technology was very suitable for use.

Diffusion of dissolved gases: from lab scale to in situ scale

Over the last decade, SCK CEN obtained a large set of diffusion coefficients for different gases in different Members of the Boom Clay. These diffusion experiments were performed in the lab on Boom Clay samples with diameter 80 mm and length 30 mm [1, 2]. When performing safety calculations, diffusion of gas is assumed to take place within an approximate domain over 100’s of meters. This led to the question: is the lab-scale diffusion coefficient also valid on a larger (meter) scale? In the past, a similar question was raised for more classical tracers such as HTO and iodide, and several in situ diffusion experiments lead to the confirmation of lab results. Hence, SCK CEN, ESV Euridice and ONDRAF/NIRAS will perform a new in situ diffusion experiment with dissolved neon in the HADES URL with main objective to confirm/improve the current knowledge on diffusion of dissolved gas at a large scale. To perform an experiment under the most relevant conditions for the Boom Clay, i.e. without being perturbed by the presence of an excavation-damaged zone, the MEGAS setup (drilled in 1992) is re-used. The MEGAS setup consists of four piezometers in a 3D configuration. The most suitable location to inject dissolved gas is filter 17. Monitoring will take place in filters 18, 9 and 22, which allows assessing the anisotropy of diffusion (Figure 1 left).
 In a geological disposal facility, hydrogen is the main gas that will be produced. Performing experiments with hydrogen is complicated due to microbial conversion of hydrogen into methane. Therefore, this experiment will make use of neon, the best proxy for hydrogen. The principle of this in situ gas diffusion experiment is similar to the experiments in the lab: gas (neon) is dissolved in water, and the water with dissolved neon is circulated over a filter that is in contact with the clay. After some time, dissolved neon will be present in the water in the monitoring filters. By circulating this water with dissolved neon through a vessel with a non-interfering gas phase (e.g. helium), an equilibrium reaction will occur and neon will be present in the gas phase of the monitoring vessel. The monitoring vessels are connected to a gas analyser that performs on line analysis of the neon concentration. By measuring the concentration increase of neon over time in the monitoring vessels at the different filters, the diffusion parameters can be determined. Note that the initial pressure in each vessel will be equal to the in situ pore water pressure, to minimize disturbing the in situ hydraulic field. A summary of the experiment is available from [3].
 Prior to the start of the diffusion experiment with neon, and in order to better understand the performance of the setup and the processes in the host formation during the experiment, a trial in-diffusion experiment with helium was performed in filters 8 and 21. Both filters will not be involved in the neon through-diffusion experiment, but the processes and conditions around these filters during in-diffusion tests are considered relevant for the through-diffusion experiment. Two circuits are filled with 50% synthetic pore water and 50% helium at an initial pressure equal to the in situ pore water pressure at respective filters. Due to in-diffusion of helium in the host rock, the pressure in the circuits decreases over time, which in turn induces water inflow to the circuits and a subsequent increase of circuit pressure. The gas and water phase balance in the circuit is therefore dynamically adjusted by the whole system, until a steady state is reached.
 A numerical model was set up in COMSOL to predict pressure variations in both circuits. The diffusion coefficient of helium measured from the lab-scale diffusion test was used. The hydraulic conductivity of the clay comes from in situ permeability tests around these filters. If water flow is not considered in the model, the circuit pressure decrease of filter 21 follows the blue curve as shown in figure 1-right. The red curve gives the circuit pressure decrease considering diffusion of dissolved neon in clay as well as water flow under water pressure gradient. The three-month measurements follow well the red curve, which means that water inflow to the circuit plays a significant role in adjusting the circuit pressure. The good agreement between model results and field measurements confirms our lab scale test results. It also implies the good understanding of the in situ experimental system, which lays a good foundation for the long-term neon through-diffusion experiment afterwards.

A pilot scale test study with theoretical justification of reaction mechanism for the recovery of chromium(VI) based on solvent extraction using novel centrifugal extractors

As a strategic resource and hazardous substance, the purification and recovery of chromium(VI) from the aqueous phase have attracted attention. In this study, the centrifugal extractor was used to treat the leach liquor of sodium roasting chromite on a pilot scale. The extraction performance and equilibrium distribution of chromium in countercurrent extraction were investigated. Meanwhile, the scrubbing effect of impurities was carefully studied, and the stripping and regeneration effects of the organic phase were tested. Under the selected process parameters, the pilot scale test results, including extraction efficiency of chromium, scrubbing efficiency of impurities, and regeneration performance of the organic phase, were excellent. The qualified (NH4)2Cr2O7 and Cr2O3 products were prepared using the strip liquor, and several physical properties of the products were tested. In addition, the molecular electrostatic potential surface maps, HOMO-LUMO orbitals, Fukui functions, and single point energy of the molecules involved were calculated by Quantum Chemistry. The molecular electrostatic potential analysis, frontiers molecular orbital analysis, Fukui function analysis and interaction energy analysis were applied to investigate the mechanism of separation of chromic acid from impurities in the extraction system.

Structural performance evaluation of thin‐walled concrete filled steel tube column to reinforced concrete wide beam connection

Abstract[Abstract: This study summarized the full scale test results of the thin walled concrete filled steel tube column to reinforced concrete wide beam connection. The thin walled concrete filled steel tube column to reinforced concrete wide beam connection does not have any structural element that can reliably transfer shear forces and moments between steel column face and concrete, while in the conventional reinforced concrete system, continuity is ensured by the monolithic casting of concrete. The composite anchor is needed to effectively transfer the moment and shear force of the wide beam to the column. In order to verify the efficiency of the proposed composite anchor, nine full size specimens were fabricated and tested by applying a load downward to the upper column of the specimen upside down in order to simulate the gravity load imposed on the beam. Experimental results show that the strength of thin walled concrete filled steel tube column and reinforced concrete wide beam connections with the proposed composite anchor can exhibit superior performance than that of the conventional reinforced concrete beam to column system.

A Study on the Effect of Traditional Chinese Exercise Combined With Rhythm Training on the Intervention of Older Adults With Mild Cognitive Impairment.

To examine the effect of combination exercise program on cognitive function of older adults with mild cognitive impairment (MCI), and identify biomarkers associated with improvement of cognitive functions. Subjects were 42 older adults (ages, 60-80years) with MCI. The subjects were randomly classified to traditional Chinese exercise combined with rhythm training group (TCE + RTG, n = 14), walking group (WG, n = 14), and control group (CG, n = 14), according to their level of MMSE scores. These groups exercised for 60minutes at 1 session, 3 sessions a week for 12weeks. The intervention program was conducted under multitask conditions to stimulate attention and memory, and the control group attended 3 education classes. Measurements were administered before, after the 6-week, and after the 12-week intervention period; Measurements: The Mini-mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), Symbol Digit Modalities Test (SDMT), Activities of Daily Living Scale (ADL), and the 17-item Hamilton Depression Scale (HAMD-17), along with the brain-derived neurotrophic factor (BDNF). A repeated-measures analysis of variance was used to examine differences among the 3 groups and between the 3 testing times (pre-test vs middle-test vs post-test). (1) The TCE + RTG showed significant improvement in the MMSE, MoCA, SDMT, and ADL scale test results (P < .01) and HAMD-17 scale test results (P < .05). The WG also showed significant improvement in the MMSE, MoCA, and HAMD-17 scale test results (P < .05) and the ADL scale test results (P < .01). While there was no significant change in the CG after the intervention. (2) The TCE + RTG and WG showed positive improvement in peripheral blood BDNF levels, while the CG showed a decrease in these test results. There were significant differences between the TCE + RTG and CG before and after the intervention. The results suggested that a TCE + RT is beneficial for improving memory and maintaining general cognitive function and peripheral blood BDNF levels in older adults with MCI. Peripheral blood BDNF levels may predict improvement of cognitive functions in older adults with MCI. Further studies are required to determine the positive effects of TCE + RT on cognitive function in older adults with MCI. Trial Registration: ChiCTR2200058545, Registered 10 April 2022.

Balance performance measured by posturography in mild-moderate Alzheimer's Disease: An undervalued assessment

PurposeThe aim of the study was to compare balance performance in mild-moderate stage Alzheimer's disease (AD) patients and healthy peers using clinical balance tests and computerized posturography. MethodsWe recruited 95 patients and divided them into two groups; 51 patients (62 % (n=32) female) in AD group and 44 patients in healthy controls group (50 % (n=22) female). Berg Balance Scale (BBS) and Timed Up & Go (TUG) test were performed. Computerized posturography was performed. ResultsThe mean age was 77.2±5.5 years in the AD group and 73.8±4.4 years in the control group (p<0.001). Sensory organization test composite equilibrium score (60[30-81], p<0.001), step quick turn-sway velocity (69.2 [38.2-95.8], p<0.001) and step quick turn-time (3.8 [1.6-8.4], p<0.001) were significantly impaired in mild-moderate stage AD patients. Berg Balance Scale (50 [32-56], p<0.001) and TUG test (13.0 [7.0-25.7], p<0.001) results were worse in AD. ConclusionsComputerized posturography measures were impaired in mild-moderate AD patients. The results highlight importance of early screening for balance and fall risk in AD patients. The study provides multi-dimensional and holistic assessment of balance performance in early-stage AD patients. Alzheimer's disease patients at earlier stages are prone to fall risk and should be evaluated accordingly.

Coupling error modeling and compensation of beam-column endplate connection system

To investigate the composition form and evolution law of similar errors between full-scale prototype joints and reduced-scale model joints in steel structure beam-column connections, a full-scale benchmark model test and a 1:2 reduced-scale model test of beam-column end-plate connections were carried out respectively, focusing on the similarities and differences between the hysteretic curves of the two. The test results show that there is an irreparable gap between the test results of the two models without considering the similarity error, and the test results of the scaled model cannot accurately represent the full-scale model. Based on the test results, finite element models are established, and a calculation method to compensate the similarity error of the scale model is proposed. The relative independence between similarity error and test operation error is proved. The similarity error can be accurately simulated by response surface method based on multi-factor correlation. This paper focuses on three test error sources, namely, boundary conditions, plate thickness differences and bolt specification differences, meanwhile the contribution weights of the three error sources and their influence forms on the hysteretic curve are well investigated. Based on the proposed error compensation algorithm, the test results of the scale model are compensated and compared with full scale test results, which proves the effectiveness of the error correction algorithm. The compensated scale model test results are in good agreement with the prototype data, and the error is decreased from 70% to 5%.

Remaining fatigue life assessment of corroded mooring chains using crack growth modelling

Failures caused by the combined actions of fatigue, corrosion and wear are important safety concerns for mooring chains used on floating structures in the oil and gas industry. Prediction of remaining corrosion fatigue life based on surface condition could therefore be a useful tool for the continued safe operation of corroded chains. This paper investigates the use of crack growth modelling for estimating the remaining corrosion fatigue life of mooring chains that exhibit significant pitting corrosion damage. A crack growth modelling approach is used to produce remaining fatigue life estimates for a selection of severely pitted mooring chains. Using fatigue crack growth rate test results for grade R4 high strength mooring chain steel, empirical crack growth laws are presented for free corrosion and cathodic protection conditions at load ratio R = 0.1. Two different methods for establishing equivalent cracks from surface scans of corrosion damage are presented. The mooring chains are proof loaded as part of their manufacturing process. Residual stresses introduced during this process have therefore been determined by finite element analysis and accounted for in the fatigue crack growth predictions. One of the equivalent crack models, accounting for the single dominant corrosion pit, provided quite accurate fatigue life predictions when compared with full scale test results.

Correlation of rs35753505 polymorphism in Neuregulin 1 gene with psychopathology and intelligence of people with schizophrenia

Background and aimSchizophrenia is one of the most severe psychiatric disorders. About 0.5 to 1% of the world's population suffers from this non-Mendelian disorder. Environmental and genetic factors seem to be involved in this disorder. In this article, we investigate the alleles and genotypic correlation of mononucleotide rs35753505 polymorphism of Neuregulin 1 (NRG1), one of the selected genes of schizophrenia, with psychopathology and intelligence. Materials and methods102 independent and 98 healthy patients participated in this study. DNA was extracted by the salting out method and the polymorphism (rs35753505) were amplified by polymerase chain reaction (PCR). Sanger sequencing was performed on PCR products. Allele frequency analysis was performed using COCAPHASE software, and genotype analysis was performed using Clump22 software. ResultsAccording to our study's statistical findings, all case samples from the three categories of men, women, and overall participants significantly differed from the control group in terms of the prevalence of allele C and the CC risk genotype. The rs35753505 polymorphism significantly raised Positive and Negative Syndrome Scale (PANSS) test results, according to a correlation analysis between the two variables. However, this polymorphism led to a significant decrease in overall intelligence in case samples compared to control samples. ConclusionIn this study, it seems that the rs35753505 polymorphism of NRG1 gene has a significant role in the sample of patients with schizophrenia in Iran and also in psychopathology and intelligence disorders.

A study of scale effects in experiments of monopile scour protection stability

Small scale hydraulic experiments are widely used to model the stability of a scour protection around an offshore monopile foundation. Knowing the associated scale effects is important for evaluating the validity of the obtained experimental and design results. This paper provides a quantification analysis of scale effects that exist in monopile scour protection experiments, with a focus on the shear damage of a dynamically stable scour protection. Large scale models (scale ratio 1:8.33 and 1:16.67) and similar small scale models (scale ratio 1:50) have been adopted in the experiments with waves against current hydrodynamic conditions applied. For the waves and current conditions, the Froude scaling rule is used; for the armour stones, the so-called Best Model scaling rule suggested by Hughes (1993) is used. The scaling scheme achieves similarities between large and small scale models with regard to Shields number, relative density, geometry and settling velocity of particle. The scour protection damage patterns are measured and the three dimensional damage numbers are analysed. For better comparing the small and large scale test results, the small scale tests are performed repeatedly to obtain reliable damage results with associated range of deviation. Visual assessment of the damage patterns shows some agreements between small and large scale tests with regard to the damage and accretion locations. However, detailed analysis shows that the small scale tests introduce higher global and subarea damage numbers compared to large scale tests. The damage areas in small scale tests are larger than that in large scale tests. Significant lee-side damage due to the presence of lee-wake vortices is found in small scale tests. The dissimilarities of pile Reynolds number ( R e , D P ), ratio between Shields numbers ( θ m a x / θ c r ) and vortex shedding frequency in the different scaled models are believed to be the primary reasons of obtained scale effects. • Scale effects in monopile scour protection experiments are investigated quantitatively. • Large scale (1:8.33 and 1:16.67) and small scale (1:50) experiments are performed under wave opposing current conditions. • Repeated small scale experiments are carried out to obtain reliable mean damage numbers and 95% confidence intervals. • Scour protection damages are analyzed and compared between small and large scale experiments. • Time scale of scour protection progressive damage development is investigated. • Different Reynolds numbers ( R e , D P ) and ratios between Shields numbers ( θ m a x / θ c r ) are the main reasons for the scale effects.

Synthesis of graphite/rGO-modified fungal hyphae for chromium (VI) bioremediation process

ABSTRACT Bioremediation is a promising technology that can eliminate the drawbacks of conventional treatment methods in removing harmful toxic metals including chromium(VI). Therefore, in this study, fungal hyphae modified with graphite and reduced graphene oxide were synthesized and assessed for their potential to bioremediate heavy metals for the first time in the literature. The effects of the carbon-based materials on microbial structure were characterized using scanning electron microscopy analysis. Thermogravimetric, RAMAN, X-ray diffraction, and enzymatic analyzes were performed to determine the role of functional groups. In addition, batch adsorption experiments utilizing response surface methodology were conducted to optimize operating parameters such as time (1–11 h), chromium (10–50 mg/L), and graphite/reduced graphene oxide (0.1–1 g/L). The maximum adsorption capacity with the graphene fungal hyphae was determined to be 568 mg.g−1, which is 9.7 times that of the crude fungal hyphae. The Cr(VI) removal for fungal hyphae-graphite and fungal hyphae-reduced graphene oxide biocomposites was 98.25% and 98.49%, respectively. The isothermal and kinetic results perfectly matched the 2nd order pseudo-model and Langmuir model in terms of the nature of the adsorption process. The laboratory scale test results indicate that fungal hyphae modified with graphite and reduced graphene oxide have a high adsorption capacity, suitable for the removal of chromium (VI) from wastewater.

The Gap Between Self-Rated Health Information Literacy and Internet Health Information-Seeking Ability for Patients With Chronic Diseases in Rural Communities: Cross-sectional Study.

BackgroundThe internet has become one of the most important channels for residents to seek health information, particularly in remote rural areas in China.ObjectiveIn this study, we aimed to explore the gap between self-rated health information literacy and internet health information seeking ability for patients with chronic diseases in rural communities and to preliminarily evaluate their barriers when seeking health information via the internet.MethodsResidents from rural communities near Bengbu City and with chronic diseases were included in this study. A self-rated questionnaire was used to evaluate their health information literacy, 3 behavioral competency tasks were designed to preliminarily evaluate their ability to seek health information on the internet and semistructured interviews were used to investigate their barriers to obtaining health information via the internet. A small audiorecorder was used to record the interview content, and screen-recording software was used to record the participants’ behavior during the web-based operational tasks.ResultsA total of 70 respondents completed the self-rated health information literacy questionnaire and the behavioral competence test, and 56 respondents participated in the semistructured interviews. Self-rated health information literacy (score out of 70: mean 46.21, SD 4.90) of the 70 respondents were moderate. Although 91% (64/70) of the respondents could find health websites, and 93% (65/70) of the respondents could find information on treatment that they thought was the best, 35% (23/65) of respondents did not know how to save the results they had found. The operational tasks indicated that most articles selected by the respondents came from websites with encyclopedic knowledge or answers from people based on their own experiences rather than authoritative health information websites. After combining the results of the semistructured interviews with the DISCERN scale test results, we found that most interviewees had difficulty obtaining high-quality health information via the internet.ConclusionsAlthough the health information literacy level of patients with rural chronic disease was moderate, they lack the ability to access high-quality health information via the internet. The vast majority of respondents recognized the importance of accessing health information but were not very proactive in accessing such information.

Evaluation of P1, P2, F1, F2, B1 and B2 generations of LM 95 × EC 362096 cross of mung bean for yield and yield attributes along with water use efficiency and heat stress tolerance related traits using generation mean analysis

In mung bean, limited work has been done on yield attributes along with water use efficiency (WUE) and heat stress tolerance related traits. Realizing the significance of drought and heat stress on yield components, there is need to enhance the genetic potential of mung bean genotypes with high yield and drought and heat stress tolerance. The experimental material comprising six populations viz P1, P2, F1, F2, B1 and B2 of the cross LM 95 × EC 362096 was grown at the dryland farm of SV Agricultural College, Tirupati, Andhra Pradesh during rabi 2017 in compact family block design with two replications. The mean data obtained from six generations (P1, P2, F1, F2, B1 and B2) of selected superior cross LM 95 × EC 362096 for yield, yield components, WUE and heat stress tolerance related traits were subjected to generation mean analysis. Partitioning of generation means into six components revealed that the component mean [m] was positive and highly significant for all the traits. The results of scaling tests revealed that additive-dominance model was not sufficient to explain the inheritance of the characters studied. The inadequacy of additive-dominance model suggested the possible involvement of di-genic or higher order epistatic gene action in the expression of all the traits. It also indicated the presence of positively significant proportion of epistatic {[i], [j] and [l]} effects besides main {[d] and [h]} effects for yield, yield attributes, WUE and heat stress tolerance related traits. The findings divulged that both additive and the dominance components were important in the inheritance of yield, WUE and heat stress tolerance related components.

Karakteristik Fisikokimia dan Organoleptik Pepes Daging Itik Petelur Afkir yang Dilumuri Bubuk Daun Nangka (Artocarpus heterophyllus)

This study aimed to analyze the physicochemical and organoleptic characteristics of rejected laying duck meat pepes after being coated with jackfruit leaf powder (JLP). The research design employed was a completely randomized design consisting of 4 treatments (P0: without any coating with JLP; P1: 5%; P2: 10%; and P3: 15% smearing of JLP) with 3 replications. The variables measured were cooking loss, water holding capacity (WHC), pH, and water content which were analyzed by Anova and multiple comparisons DMRT by significance level 0.05, and organoleptic which were analyzed by description. The results of the study showed that rejected laying duck meat smeared with JLP had no significant effect (P&gt;0.05) on cooking loss, WHC pH, and moisture content of the pepes. However, the 15% JLP was able to enhance the aroma of the pepes. The average range value of the cooking loss was 14.00 to 15.33%, the WHC was 53.76-55.47%, the pH value was 6.22-6.29%, and the moisture content was 67.83-71,28%. The results of the hedonic quality test showed that the average value of the meat aroma ranged from 4.03-4.20 in the slightly fishy to a very non-fishy category, the interval scale test results showed P0, P1, and P2 in an interval scale of 3.40-4.19 (slightly fishy aroma), different from P3 which is included in the interval scale from 4.20 to 5.00 (very not fishy). The tenderness of the meat was 3.52-3.92 as the tender category, the taste of the meat was 3.88-4.10 as the delicious category. The results of the hedonic test showed that the average value of the aroma of meat ranged from 4.02-4.12, the tenderness from 3.39-3.64, and the taste from 3.88-3.97. All scores were in the liking category. It was concluded that 5% to 15% smearing of JLP did not change the physicochemical properties of rejected layer duck meat paste, but 15% application of it could increase the aroma.

Efficiency of maternal health services in East Java Province

This study aims to determine the level of efficiency of maternal health services, to explain the factors that cause inefficiency in the districts/cities of the province of East Java. Using data envelopment analysis (DEA). The results showed that the variable return to scale (VRS) test results were better than constant return to scale (CRS), there was a change from relatively inefficient using VRS to efficient regions using VRS. The results of partial regression test AAB affect inefficiency, TPM and TTU do not affect. Meanwhile, simultaneously AAB, TPM and TTU affect the inefficiency of health services. So that it can increase the improvement of AAB access to reduce inefficiency.

Association of physical frailty with cognitive function and mood in older adults without dementia and depression

Physical frailty is thought to be related with a decline in cognitive function, mood, and social activities, especially in patients with depression and dementia. It is not clear whether or not physical frailty is associated with an impairment in cognitive function and mood in patients without dementia and depression. In this study, we evaluated the association of physical frailty with cognitive function and mood in geriatric patients without dementia and depression. In this study, 612 patients aged 65 years and over were evaluated. Physical frailty was assessed by using Fried criteria. Furthermore, comprehensive geriatric assessment was performed to each patient. Median age of the patients was 72 years (min-max: 65–93), 58% were female, and 6.5% were frail. Clock drawing (p < 0.001), MMSE (p < 0.001), and Yesevage geriatric depression scale (p: 0.010) test results were worse in frail patients compared to pre-frail and robust ones. Age (p: 0.009), being university graduate (p: 0.031), three words recall test (p: 0.014), activities of daily living (ADL) (p: 0.006), instrumental activities of daily living (IADL) (p < 0.001), and MNA-SF (p: 0.001) scores were determined to be independent related factors of frailty. We have demonstrated that cognitive function and mood might be associated with physical frailty in patients without dementia and depression.

EMMI (e-MODULE MULTIPLE INTELLIGENCE) : MODUL FISIKA DASAR MAHASISWA DENGAN 3D PAGEFLIP PRO

This study aims to produced eMMI based on multiple intelligence (eMMI) with 3D pageflip pro for biology student’s in IKIP Budi Utomo Malang, in the circulatory system material that is suitable for used in the learning process. This research was developed with a 4-D model consisting of definitions, planning, development and dissemination. Data collection using a questionnaire. This eMMI have been validated by material experts and media experts.The evaluation results from material validation, is known that above 90%, while the results of media validation are above 96%. Small scale test results indicate the validity results above 90%. From the results of the validation of media experts and material experts, it is stated that the e-eMMIe is suitable for use and based on the questionnaire, it can be said that students and teachers are expected to really take advantage of teaching materials in order to create interesting and fun learning in physics learning.