Impact Of Pt Research Articles

The Impact of Mining on Labor Absorption and the Economy of Working Families in Lasolo District, North Konawe Regency

This research aims to measure the impact of PT. XYZ towards employment and the economy of working families in North Konawe Regency. The research method used is qualitative using primary and secondary data. Data was obtained from the Central Bureau of Statistics and Company Data, with data collection techniques including observation, interviews and documentation. The research results show that the existence of PT. XYZ in Lasolo District, North Konawe Regency absorbs 35 workers from the local area and 15 workers from outside the area. Even though the number of employees is only 50 people, this company's contribution to employment reaches 0.10% of the total workforce in North Konawe. However, the role of PT. XYZ supports the economy of working families quite significantly, with an average contribution reaching 91.39% of family income. This shows that even though the number of workers absorbed is relatively small, the economic impact is quite large for the families of the workers involved.

Analysis of the Social, Economic, and Ecological Impact of Mining Activities of PT. Gag Nickel on Society and Coral Reef Ecosystem in Gag Island, Raja Ampat District

This study analyses the social, economic, and ecological impact of PT. Gag Nickel mining activities on the society and coral reef ecosystem in Gag Island, Raja Ampat district. The data was obtained through in-depth interviews, observations, and questionnaires distributed to employees of PT. Gag Nikel and the surrounding community. The results of the research show that the presence of P.T. Gag Nikel has improved the income and well-being of the local population, with the majority of the population working as employees of the company. However, mining activities also cause damage to coral reef ecosystems, including soil erosion, sedimentation, and marine water pollution. In conclusion, in order to better sustainability, increased commitment of companies in managing environmental impacts and public involvement in decision-making related to mining activities is required. This research provides important insights for mining companies and other stakeholders in managing the impact of mining activities sustainably.

Analisis Pengaruh Kenyamanan dan Kualitas Produk Terhadap Kepuasan Konsumen pada Motor Listrik PT. Len Industi (Persero) di Lingkungan Militer TNI.

The research aims to analyze the perception of comfort in driving electric motorcycles among TNI military personnel at PT. Len Industri (Persero) to identify factors influencing comfort and measure the impact of PT. Len Industri (Persero) electric motorcycle product quality on interest and satisfaction in the military environment. The study adopts a quantitative method, employing purposive sampling with a total sample of 40 respondents. Data collection involves distributing Likert scale questionnaires to consumers or TNI military personnel using PT Len Industri (Persero) electric motorcycles. The author employs data analysis techniques such as validity testing, reliability testing, normality testing, t-test, F- test, and R-test. The data obtained are processed using SPSS 29. Based on the results of the t-test, the calculated r-value is 5.323 > r-table 1.686, and a significant value of 0.00 < 0.05 is obtained, indicating that the related variables are influenced by independent variables. Referring to the coefficient of determination test results, an R square value of 86.7% is obtained. Thus, based on the analysis conducted, it is concluded that customer satisfaction is influenced by rider comfort and product quality.

Novel, braided, self-expandable stent designed for the treatment of pulsatile tinnitus caused by intracranial venous stenosis: first-in-human experience and long-term outcomes

BackgroundPulsatile tinnitus (PT) can be a disabling clinical condition, which may be caused by a sigmoid/transverse sinus stenosis (STSS). Intracranial venous stenting with off-label carotid or peripheral venous stents has...

Dampak Pt Bintan Karisma Pratama Pada Perubahan Sosial Ekonomi Masyarakat Nelayan Pesisir

The research aims to determine the impact of PT. Bintan Karisma Pratama which is located on Telang Island, Mantang District, Bintan Regency in the Riau Islands Province, on community life in Telang Kecil village with economic and social aspects of community life and how this PT contributes to local or local communities after the compensation assistance provided by PT for the Telang Kecil community, this research uses qualitative methods, namely in the form of interview and observation techniques or field studies, as well as literature studies to support the results of this research. The impact of PT Bintan Karisma Pratama on the environment of the people of Telang Kecil does not have a serious impact because the PT has first assessed the location area where it wants to be established and has followed the rules of the decision-making process regarding business and activity organizers or what is known as AMDAL, the marine environment of Telang Kecil is also categorized. Clean, local people are able to take good care of the marine environment. The majority of their livelihoods are fishermen and others work as workers at Pt Bintan Karisma Pratama, wives work as housewives and there are also those who work as small traders or small food and beverage businesses.

Potential cellular targets of platinum in the freshwater microalgae Chlamydomonas reinhardtii and Nitzschia palea revealed by transcriptomics.

Platinum group element levels have increased in natural aquatic environments in the last few decades, in particular as a consequence of the use of automobile catalytic converters on a global scale. Concentrations of Pt over tens of μg L-1 have been observed in rivers and effluents. This raises questions regarding its possible impacts on aquatic ecosystems, as Pt natural background concentrations are extremely low to undetectable. Primary producers, such as microalgae, are of great ecological importance, as they are at the base of the food web. The purpose of this work was to better understand the impact of Pt on a cellular level for freshwater unicellular algae. Two species with different characteristics, a green alga C. reinhardtii and a diatom N. palea, were studied. The bioaccumulation of Pt as well as its effect on growth were quantified. Moreover, the induction or repression factors of 16 specific genes were determined and allowed for the determination of possible intracellular effects and pathways of Pt. Both species seemed to be experiencing copper deficiency as suggested by inductions of genes linked to copper transporters. This is an indication that Pt might be internalized through the Cu(I) metabolic pathway. Moreover, Pt could possibly be excreted using an efflux pump. Other highlights include a concentration-dependent negative impact of Pt on mitochondrial metabolism for C. reinhardtii which is not observed for N. palea. These findings allowed for a better understanding of some of the possible impacts of Pt on freshwater primary producers, and also lay the foundations for the investigation of pathways for Pt entry at the base of the aquatic food web.

Effects of strength training program in the treatment of chronic non-specific low back pain

Low back pain is defined as any pain that occurs between the last costal arch and the lower gluteal fold, and may have different intensities and durations, being considered chronic if it lasts for more than 12 weeks, becoming non-specific if its cause is not identified, compromising the quality of life of affected individuals. Currently, Strength Training (TF) has been included in the treatment of chronic non-specific low back pain, in order to improve the condition of people suffering from this condition. Thus, the objective of this research was to verify the impact of PT on the treatment of low back pain, highlighting the main aspects based on the inclusion of this practice in everyday life, showing the benefits arising from this method. For the present study, a review of scientific articles was carried out using the PubMed, Scielo and Google Scholar databases to complement information on low back pain and PD. Several evidences were found that positively contribute to the improvement of low back pain with the use of PT in pain conditions, increased functional capacity, improvement in activities of daily living (ADL), gain in muscular resistance, strength and hypertrophy, in addition to individuals showing themselves more active. It is concluded that TF proved to be effective in the treatment of non-specific chronic low back pain, improving its symptoms such as pain and disability, however, if applied by an unqualified professional and incorrectly, it can be harmful to health.

Impact on Cardiovascular Health of Using Phentermine/Topiramate in Combination With Laparoscopic Sleeve Gastrectomy in Super Obesity

IntroductionManagement of patients with BMI≥50 kg/m2 is challenging. In previous work, pre and postoperative pharmacotherapy with phentermine/topiramate plus laparoscopic sleeve gastrectomy (PT + SG) promoted greater weight loss than sleeve gastrectomy (SG) alone at 24 mo postoperatively. This current secondary analysis studied the impact of PT + SG on blood pressure (BP), heart rate, and antihypertensive usage. MethodsPatients with BMI≥50 kg/m2 planning to have SG (n = 13) were recruited from 2014 to 2016, at an academic medical center in Winston–Salem, North Carolina, for this open-label trial. Participants took phentermine/topiramate (PT; 7.5/46–15/92 mg/d) for ≥3 mo preoperatively and 24 mo postoperatively. The control group (n = 40) underwent SG during the same time frame. We used mixed models for BP and heart rate to compare PT + SG versus SG alone over time, adjusted for age, sex, and initial BP. ResultsBy 24 mo postoperatively the model adjusted changes in systolic blood pressure/diastolic blood pressure (SBP/DBP) (mm Hg) were −24.44 (−34.46,−14.43)/−28.60 (−40.74,−16.46) in the PT + SG group versus −11.81 (−17.58,−6.05)/−13.89 (−21.32,−6.46) in the control group (SBP P = 0.02; DBP P = 0.03). At baseline 8 (61.5%) participants in the PT + SG arm and 22 (55.0%) in the control group used antihypertensives. Excluding patients lost to follow-up (n = 3), by 24 mo postoperatively, none of the PT + SG participants were on antihypertensives compared to 14 (41.2%) in the control group (P = 0.01). ConclusionsPatients with BMI≥50 kg/m2 treated with PT + SG had greater improvement in BP with no use of antihypertensive medication at 24 mo postoperatively versus SG alone, where 41% continued medication use. Larger trials are required to evaluate this.

Environmental Development Program of CSR: Analysis of Waste Bank in Karya Mulia Village, Palembang, Indonesia

This study aims to analyze the environmental development program of the Corporate Social Responsibility (CSR) waste bank of PT. Pertamina Limau Field. This study used a qualitative method with in-depth interview data collection. This research model is interactive by reducing data, presenting and drawing conclusions. The results of this study indicate that the implementation of PT. Pertamina Limau Field makes a positive contribution to the surrounding community. The application of community development provides education and awareness to the community in appreciating environmentally friendly values and reducing the waste of resources. The synergy with the Prabu Mulih waste bank makes waste management more efficient and optimal. The waste bank program also has an impact on the social and economic aspects of the community. The sustainability of the waste bank program applies the green economy concept which refers to the Sustainable Development Goals (SDGs) number 11 concerning sustainable cities and communities, number 12 concerning responsible consumption and production. The positive impact of PT. Pertamina Limau Field has resulted in the participation of more than 100 customers who have deposited non-organic waste.

INDUSTRIALIZATION ANALYSIS IN SURODADI VILLAGE COMMUNITY

A decent and well-established economy is an indicator of community welfare. Economic improvement and development are supported by industrial progress in an area. The existence of the industry will have an impact on the area as happened in Surodadi Village which experienced development after the construction of PT. CJ CheilJedang Feed Semarang is the largest company in Surodadi Village by producing animal feed and fish feed with its head office in South Korea. This research is a qualitative descriptive study that describes the impact of PT. CJ CheilJedang Feed Semarang on the living conditions of the Surodadi Village community. The object of research is PT. CJ CheilJedang Feed Semarang and Surodadi Village, while the research subjects were the Surodadi village community, employees, local government, and related agencies. Data comes from primary data in the form of primary sources directly obtained from research results, as well as secondary data from literature and document studies. The data was obtained from the results of observations, interviews, and field documentation. Data analysis with stages of data collection, data reduction, data presentation, and conclusions. The analysis of the validity of the data with data triangulation techniques and sources. The results showed the existence of PT. CJ CheilJedang Feed Semarang creates job opportunities (reduces unemployment), develops community business units (food stalls, shops, boarding houses, rented houses), improves community welfare. The negative impact is in the form of odor pollution which sometimes reaches residents' settlements as well as heavy traffic during the hours of leaving and returning from work.

The Impactof PT PLN Tanjung Jati B's Corporate Social Responsibility on the Welfare of Micro, Small and Medium Enterprises

Corporate Social Responsibility (CSR) is a responsibility towards the environment in realizing the social welfare of the community. This study aims to determine the effect of the CSR of PT. PLN Tanjung Jati B on the welfare of the UMKM under its guidance. CSR indicators are the goals of corporate social responsibility (X1), corporate social issue (X2), corporate relations programs (X3) and the welfare of MSMEs (Y).This study uses primary data in the form of data obtained directly in the field, the research sample is 47 MSME CSR respondents guided by PT. PLN Tanjung Jati B 2019. The sampling technique used was simple random sampling. The study was conducted using questionnaires and interviews, the data analysis method used was quantitative method with multiple linear regression analysis approach.In a small scope, based on the results of the T Test (Partial Test), partially the corporate social responsibility goal variable (X1) from tcount 2,300> ttable 1,68107 shows that the goals of corporate social responsibility have a significant positive effect on the welfare of MSMEs. In corporate social problems (X2) from tcount 1.087 <ttable 1.68107 it shows that corporate social issue have a positive and insignificant effect on the welfare of MSMEs and in the corporate relations program variable (X3) from tcount 2.108> ttable 1.68107 shows that the company relations program has an effect significantly positive on the welfare of MSMEs. Meanwhile, the F test (Simultaneous Test) proves that the objectives of corporate socialresponsibility goal, corporate social issue, and the corporate relations program of PT. PLN Tanjung Jati B significantly affects the welfare of MSMEs by 14,445%.

New in vitro highly cytotoxic platinum and palladium cyanoximates with minimal side effects in vivo

Several biologically active bivalent Pd and Pt complexes with two structurally similar cyanoxime ligands abbreviated as H(DECO): 2-oximino-2-cyano-N,N′-diethylacetamide, and H(PyrCO): 2-oximino-2-cyan-N-pyrrolidine acetamide were synthesized and characterized using spectroscopic methods, thermal analysis and X-ray crystallography. Structures revealed planar cis-geometry of studied complexes. Freshly obtained Pt(DECO)2, Pd(DECO)2, Pt(PyrCO)2 and Pd(PyrCO)2 complexes were used in for in vitro cytotoxicity assays using two different etiology human cancer cell lines HeLa and WiDr cells. Investigated compounds showed cytotoxicity levels at or above cisplatin. Pt(DECO)2 was also tested in vivo in healthy C57BL/6 mice. The complex was administered at three different dosage (0, 7.5, 15 mg/kg, i.p. once/week), over a total period of 8 weeks. No changes were observed in the animal weight in the treated mice compared to the control dextrose-treated group. The levels of erythrocytes, leukocytes, and hemoglobin were within the normal level suggesting low myelotoxicity. Negligible cardiotoxicity was observed from the histological evaluation of the hearts from the treated animals. Results from the tail nerve conduction velocity (NCV) and nerve histomorphometry suggested no impact of Pt(DECO)2 on peripheral nerves. The complex, however, induced certain hepatotoxicity and lead to the elevation of IL-6, a pro-inflammatory cytokine. Overall, Pt(DECO)2 showed minimal in vivo toxicity, thus presenting a promising candidate for future testing in animal models of cancer.

The Development Impact of PT. Medco E & P Malaka on Economic Aspects in East Aceh Regency

Development basically aims to realize prosperity for the community. Development can be done by implementing in various forms of programs. Development that uses human resources and high technology to process natural resources that can be utilized for human life, one of which is the development of oil and gas exploration block A area of PT. Medco E & P Malaka in Indra Makmur Sub-district. This activity is expected to provide positive benefits for the welfare of the people around the exploration activities. The type of research is associative research with a quantitative approach. This research was conducted in the oil and gas exploration area of Block A Area PT. Medco E & P Malaka in Alue Ie Itam and Blang Nisam Villages in Indra Makmur Sub-district, East Aceh Regency. Respondents in the study consisted of 50 respondents. The result of this study is the economic impact of oil and gas exploration development in Block A area of PT. Medco E & P Malaka has a very positive impact on income, home ownership, home conditions, and additional income of the community in Alue Ie Itam Village and Blang Nisam Village. This can be seen from tcount (6.852) which is greater than ttable (1.67591). Significant differences are also indicated by the significance score (0.00 <0.05).

Impact of alloying elements (Co, Pt) on nickel stanogermanide formation

The impact of Pt or Co as alloying elements for Ni-based metallization of GeSn layers has been investigated. As far as the solid-state reaction is concerned, the overall phase sequence is the same for all metallizations: at low temperature, a Ni-rich phase is obtained; it is then consumed to form the low resistivity mono-stanogermanide phase. Nevertheless, the addition of an alloying element has an impact on Ni consumption, Ni-rich and mono-stanogermanide phases’ formation temperatures. Moreover, the addition of Co or Pt positively impacts Sn segregation by delaying this phenomenon. Co has a weak influence on morphological and electrical properties. On the other hand, Pt improves the surface morphology by delaying the Ni(GeSn) phase agglomeration and enhancing the process window in which the sheet resistance remains low.

Metal accumulation in riverine macroinvertebrates from a platinum mining region

South Africa is the world’s main supplier of Pt. The Bushveld Igneous Complex in South Africa contains 75% of the world’s Pt resources. Mining of this precious metal requires large volumes of water for production and removal of waste products. Most of this wastewater is discharged into river systems. Although the source of contamination with Pt in aquatic systems due to mining activities is known, little to no information is available about the impact of Pt on aquatic organisms. Additionally, other metals are released as byproducts of Pt mining, which might also be discharged into the environment. Therefore, concentrations of Cr, Ni, Cu, Zn, Cd, Pt and Pb were determined in water, sediment and macroinvertebrate samples from a reference site (Site 1), a highly impacted site (Site 2) and a moderately impacted site (Site 3) along the Hex River, South Africa. Aquatic invertebrate families representing different functional feeding groups i.e. scraper-grazers (Lymnaeidae), collector-gatherers (Potamonautidae, Hydropsychidae, Tubificidae and Chironomidae), shredders (Baetidae) and predators (Coenagrionidae and Libellulidae) were studied. In the sediments, the concentrations of Cr and Pt were significantly higher at Site 2 than at Sites 1 and 3, respectively, whereas concentrations of Ni, Cu, Cd, and Pb showed no significant differences between the sites. Depending on the metal, the aquatic invertebrate families showed different grades of bioaccumulation. The results from especially Lymnaeidae, Baetidae, Tubificidae and Chironomidae showed great promise for the use of these taxa for biomonitoring of metal contaminations. The macroinvertebrates accumulated metals associated with Pt mining, with epi-benthic dwelling taxa (Tubificidae) accumulating higher concentrations of Pt and Cr than other families (e.g. Potamonautidae, Coenagrionidae and Lymnaeidae). These results provide valuable information on the behavior of metals related to Pt mining in aquatic ecosystems and therefore can contribute to the risk assessment of these intensive mining activities.

Impact of Pt embedded nanocrystals on the resistive switching and synaptic properties of forming free TiO2 – x/TiO2 – y-based bilayer structures

The resistive switching characteristics of forming free TiO2 – x/TiO2 – y memory devices containing Pt nanocrystals (NCs) beneath the top electrode were systematically investigated through experiments and numerical simulation insights. By embedding Pt nanocrystals, we have the possibility to narrow down the possible locations where the switching effect will evolve and thus significantly improve the inherent variability of the devices. Besides, the deployment of bilayer structures can tune the resistance levels, since the presence of the layer with low oxygen content (TiO2 – y) acts practically as series resistance, limiting the operating currents and at the same time forcing the switching effect to evolve in the layer with the higher oxygen content (TiO2 – z). A numerical model is implemented, in order to shed light into the origin of the SET/RESET transitions and illustrate the direct impact of NCs on the conducting filament (CF) shape and distribution of oxygen vacancies. It is demonstrated that a higher density of oxygen vacancies is created in the vicinity of NCs, which can directly impact the operating current values and the uniformity of the switching characteristics. The presence of NCs also facilitates the reduction of the operating voltages (∼3 V), and, as a result, it significantly improves power consumption, without sacrificing the switching ratio (∼103), temporal/spatial variability (σ/μ < 0.2), and pulse endurance (108 cycles) characteristics of our memory cells. Evidence about the impact of the NCs position within the material configuration are also presented. The direct impact of Pt NCs on the depression and potentiation characteristics of the synaptic weight denotes similarly the huge applicability of our approach to tune a wide range of resistive switching properties.

Biomineralization of Platinum by Escherichia coli

The widespread use of platinum in many industrial applications has led to its release into the environment at elevated concentrations with potential adverse effects on human and environmental health. However, the nature of interactions between mobile platinum complexes and the biotic components of the environment, which are increasingly being exposed to platinum, is poorly studied. The aim of this study was to assess the impact of Pt(IV)-chloride on the growth and activity of the well-characterized bacteria Escherichia coli. Bacterial survival and viability in the presence of different concentrations of Pt(IV)-chloride were assessed in liquid culture, while platinum retention was assessed using experimentation with sand-filled columns with the residual platinum concentration measured by atomic absorption spectroscopy. Bacterial biomineralization of platinum was studied with scanning electron microscopy. The results showed that E. coli tolerated PtCl4 at concentrations of up to 10,000 µM over 21 days and remained viable after 112 days of incubation with PtCl4 at 10,000 µM in sand columns. Overall, 74 wt.% and 50 wt.% of platinum was mineralized in E. coli and blank sand columns, respectively. The results of this study confirm that E. coli is capable of biomineralizing platinum. The results confirm that the interaction of platinum with bacteria is not limited to known metal-resistant bacterial species.

Dampak Aktivitas PT. Semen Tonasa Terhadap Lingkungan Desa Biringere Kabupaten Pangkajene Dan Kepulauan

Impact of PT. Semen Tonasa on the environment of Biringere village, Bungoro sub-district, Pangkep district. This study aims to find out: 1) To determine the impact caused by PT. Semen Tonasa for the community and environment of Biringere village, Pangkep Regency; 2) To determine the response of the Biringere Village community to the impact caused by the activities of PT. SEMEN TONASA. The research method is qualitative descriptive. Sampling with purposive sampling technique. The population in this study was the total number of Biringere villagers. The results of the study show: 1) the characteristics of a cement plant which includes 4 units of cement plants, cement distribution throughout Indonesia, especially eastern Indonesia, and the plant does not release waste because all the mixing processes use chemical processes; 2) the positive social impact resulting from the existence of a cement factory, namely the community around the factory, receives electricity and checks for geratis treatment, while the negative social impacts of the community are affected by health problems; 3) the impact on the environment, namely the roads in Biringere village were damaged due to traffic of heavy vehicles and thick dust entering people's homes.

Impact of Pt on the phase formation sequence, morphology, and electrical properties of Ni(Pt)/Ge0.9Sn0.1 system during solid-state reaction

Ni-GeSn based materials are promising in order to obtain contacts in complementary metal oxide semiconductor and Si photonic devices. In this work, a systematic and comprehensive study of the solid-state reaction between NiPt thin films and Ge0.9Sn0.1 layers is carried out. A particular focus is given on the impact of the addition of 10 at. % of Pt in Ni thin films. In situ X-ray diffraction and in-plane reciprocal space map measurements reveal a sequential growth in which the first phase appearing corresponds to a Ni-rich phase: (Ni0.9Pt0.1)5(Ge0.9Sn0.1)3. Then, at 245 °C, the Ni-rich phase vanishes to the benefit of the mono-stanogermanide phase (Ni0.9Pt0.1)(Ge0.9Sn0.1), which is unstable. At 360 °C, a more stable (Ni1– yPty)(Ge1– xSnx) phase is obtained concomitantly to the formation of PtSnx compounds. Finally, Sn segregation occurs at even higher temperatures. Even if Pt addition in Ni thin films complicates the phase formation sequence, it positively impacts the surface morphology and roughness, delays film agglomeration and Sn segregation, and stabilizes the electrical properties of the stanogermanide in a wide range of temperatures.

Correlated Absorption and Scattering Spectroscopy of Individual Platinum-Decorated Gold Nanorods Reveals Strong Excitation Enhancement in the Nonplasmonic Metal.

Bimetallic nanocatalysts have the potential to surmount current limitations in industrial catalysis if their electronic and optical properties can be effectively controlled. However, improving the performance of bimetallic photocatalysts requires a functional understanding of how the intricacies of their morphology and composition dictate every element of their optical response. In this work, we examine Au and Pt-decorated Au nanorods on a single-particle level to ascertain how Pt influences the plasmon resonance of the bimetallic nanostructure. We correlated scattering, photoluminescence, and pure absorption of individual nanostructures separately to expose the impact of Pt on each component. We found that the scattering and absorption spectra of uncoated Au nanorods followed expected trends in peak intensity and shape and were accurately reproduced by finite difference time domain simulations. In contrast, the scattering and absorption spectra of single Pt-decorated Au nanorods exhibited red-shifted, broad features and large deviations in line shape from particle to particle. Simulations using an idealized geometry confirmed that Pt damps the plasmon resonance of individual Au nanorods and that spectral changes after Pt deposition were a consequence of coupling between Au and Pt in the hybrid nanostructure. Simulations also revealed that the Au nanorod acts as an antenna and enhances absorption in the Pt islands. Furthermore, comparing photoluminescence spectra from Au and Pt-decorated Au nanorods illustrated that emission was significantly reduced in the presence of Pt. The reduction in photoluminescence intensity indicates that Pt lowers the number of hot carriers in the Au nanorod available for radiative recombination through either direct production of hot carriers in Pt following enhanced absorption or charge transfer from Au to Pt. Overall, these results confirm that the Pt island morphology and distribution on the nanorod surface contribute to the optical response of individual hybrid nanostructures and that the damping observed in ensemble measurements originates not only from structural heterogeneity but also because of significant damping in single nanostructures.