48 research outputs found
Respons Pertumbuhan Dan Produksi Beberapa Varietas Tomat (Lycopersicum Esculentum L.) Dataran Rendah Terhadap Pemberian Pupuk Kandang Ayam
The purpose of the study was to determine the growth response and yield of some varieties oflowland tomato (Lycopersicum esculentum L.) under application of chicken manure. The researchwas conducted at Pasar I Tanjung Sari, Medan, of 25 meters above sea level, from June until August2013. The research design is a randomized block design with two factors, tomato varieties; Rempai,Vida and Super King, and chicken manure\u27s dosages; 0, 250, 500 and 750 g/polybag. Parametersobserved were plant height (cm), the number of fruit per plant, the number of bunches, the numberof fruit per bunch, average fruit weight (g) and heritability. The results showed that tomato varietieshave significant different on plant height, average fruit weight, the number of bunches, the numberof fruit per plant and the number of fruit per bunch, dosage of chicken manure showed significantparameters plan height, the numberof bunches and the number of fruit per bunch. Interaction of bothtreatments gave significant different on plant height, the number of bunches, the number of fruit perplant and the number of fruit per bunch
Characterisation of plant growth-promoting bacteria from Kacip Fatimah (Labisia pumila) under natural tropical forest
Medicinal plants play a major role in many cultures, not only as medicines, but also as trade commodities to fulfil the demands of distant markets. A study was conducted to characterise growth-promoting bacteria from two varieties of Kacip Fatimah (Labisia pumila) found at two different locations, Sungai Tekala, Semenyih, Selangor for Labisia pumila var. lanceolate and Bukit Slim Permanent Forest Reserve, Perak for Labisia pumila var. alata. Soil and plant samples were taken for the physico-chemical analyses and characterisation of the indigenous plant growth-promoting bacteria (PGPB). Both Labisia varieties were found to thrive in areas with quite similar soil chemical and physical properties in natural forest environments except for altitude, where Labisia pumila var. alata was found in higher elevation compared to Labisia pumila var. lanceolata. The soil in both places was found to be slightly acidic and low in nutrient content. Total bacterial population found on var. alata was higher than in var. lanceolata and the highest population was found in the root endosphere (8.68 × 107 cfu g-1 soil). Morphologically-isolated bacteria were circular in shape, with flat/raised elevation, entire margin, moist texture and smooth and glistening surface but varied in colour and size. Most of the bacterial strains showed several plant-growth promoting traits like plant-growth hormones (indole acetic acid (IAA)), N2 fixation and P solubilisation activities and beneficial enzymes. Two of the bacterial isolates showing most of the beneficial properties were identified as Exiguobacterium sp. and Stenotrophomonas sp. These PGPB have the potential to enhance the growth of Kacip Fatimah
A Review of Different Applications of Wireless Sensor Network (WSN) in Monitoring Rehabilitation
Parkinson’s disease is a neurodegenerative brain disorder that affects movement. The lack of dopamine in the brain cells causes patients have lesser ability to regulate movement and emotions as time goes on. There is no cure for this disease. Although drug therapies are successful for some patients, most of the patients usually develop motor complications. In this paper, we presented our work towards the comparison of several wireless sensor network (WSN) systems for monitoring Parkinson’s patients. The designs of each system are explored. The parts being considered to design a wireless sensor network and limitations are discussed. These findings helped us to suggest a possible wireless sensor network system to supervise Parkinson’s diseases patients for a more extended period of time
Indoor environment propagation review
A survey of indoor propagation characteristics is presented, including different models for path loss, shadowing and fast fading mechanisms, different channel parameters including signal strength, power delay, coherence bandwidth, Doppler spread and angle of arrival. The concepts of MIMO channels are also covered. The study also explores many types of deterministic channel modelling, such as Finite Difference Time Domain, Finite Integration Method, Ray tracing and the Dominant path model. Electromagnetic properties of building materials, including frequency dependence, are also investigated and several models for propagation through buildings are reviewed
Photophysical performance of radio frequency sputtered Pt/n-PSi/ZnO NCs/Pt photovoltaic photodetectors
The effect of the annealing temperature on the photoelectrical properties of the nanoporous silicon/zinc oxide nanocrystallites-based (Pt/n-PSi/ZnO NCs/Pt) photodetector was investigated. Different morphologies of 3D ZnO were synthesized onto the n-PSi substrates via radio frequency (RF) sputtering in the absence of a catalyst. The synthesis of ZnO NCs was controlled by varying the growth temperature between 600–700 °C and 800–900 °C. The effect of the synthesis temperature on the structural, morphological, and optical properties of the n-PSi/ZnO NCs was systematically studied using field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), atomic force microscopy (AFM), and photoluminescence spectroscopy (PL) techniques. The roughness was found to be dependent on the anodization current density. The optimal n-PSi/ZnO NCs-based metal-semiconductor-metal UV detector (MSM) was fabricated at 700 °C. The fabricated device showed a high sensitivity of 1007.14, an internal photoconductive gain of 11.07, and a responsivity of 5.99 A/W with a low dark current when illuminated with 380 nm light (1.55 mW/cm2) at +5 V bias voltage. In addition, the response and recovery times were determined to be 0.34 and 0.22 s, respectively. This approach offers a cost-effective substrate and simple synthesis method to improve the growth of the n-PSi/ZnO NCs and demonstrates the successful fabrication of nanoscale photodetectors with potential application in nano-optics devices
Understanding the concept of al-ibtila’ (trial) in personality development: the Muslim flood victims’ experience
Religious coping plays an important role to rehabilitate victims affected by traumatic life events. Islamic teachings emphasizes al-ibtila' (trial) concept that serves in understanding the concept of qada’ (fate) and qadar (destiny).This study explored al-ibtila’ in coping with traumatic events by achieving sense of personal control in situations that produce distress and torment, as exhibited by 2014 flood victims in Temerloh, Pahang.This study analyzed their understanding, genuine acceptance, and relationship between understanding of al-ibtila' and personality development in overcoming trauma. A mixed-method approach was applied, comprising methods of documentation, interviews (five interview subjects selected by sequential sampling), and survey questionnaires (300 flood victims as respondents). Data from documentation and interviews were analyzed using the inductive approach (qualitative) in a descriptive study, while survey data were analyzed using descriptive and inferential statistical tests (quantitative). The findings gave evidence of significant positive effects in dealing with flood disaster stress from three aspects: the understanding, acceptance, and relationship between understanding of al-ibtila' with good personality development.These results emphasized the need to include understanding and acceptance of al-ibtila' as part of God’s plan in the face of traumatic events, indicating that highly optimistic flood victims can positively deal with traumatic events
Global patient outcomes after elective surgery: prospective cohort study in 27 low-, middle- and high-income countries.
BACKGROUND: As global initiatives increase patient access to surgical treatments, there remains a need to understand the adverse effects of surgery and define appropriate levels of perioperative care. METHODS: We designed a prospective international 7-day cohort study of outcomes following elective adult inpatient surgery in 27 countries. The primary outcome was in-hospital complications. Secondary outcomes were death following a complication (failure to rescue) and death in hospital. Process measures were admission to critical care immediately after surgery or to treat a complication and duration of hospital stay. A single definition of critical care was used for all countries. RESULTS: A total of 474 hospitals in 19 high-, 7 middle- and 1 low-income country were included in the primary analysis. Data included 44 814 patients with a median hospital stay of 4 (range 2-7) days. A total of 7508 patients (16.8%) developed one or more postoperative complication and 207 died (0.5%). The overall mortality among patients who developed complications was 2.8%. Mortality following complications ranged from 2.4% for pulmonary embolism to 43.9% for cardiac arrest. A total of 4360 (9.7%) patients were admitted to a critical care unit as routine immediately after surgery, of whom 2198 (50.4%) developed a complication, with 105 (2.4%) deaths. A total of 1233 patients (16.4%) were admitted to a critical care unit to treat complications, with 119 (9.7%) deaths. Despite lower baseline risk, outcomes were similar in low- and middle-income compared with high-income countries. CONCLUSIONS: Poor patient outcomes are common after inpatient surgery. Global initiatives to increase access to surgical treatments should also address the need for safe perioperative care. STUDY REGISTRATION: ISRCTN5181700
Pengaruh Modal Manusia dan Modal Pelanggan terhadap Kinerja yang Dirasakan Petani
This study aims to determine the effect of human capital and customer capital on the perceived performance of farmers. The question in this study is whether human capital affects the perceived performance of farmers and whether customer capital affects the perceived performance of farmers. The analysis technique in this research includes correlation test, determination test and F test which is a model feasibility test, followed by multiple linear regression analysis and hypothesis testing (t). The sample method uses purposive sampling, with several criteria developed previously. Questionnaires were used to collect data from respondents. Respondents in this study were farmers in Blubur Limbangan District, Garut Regency. In total there are 356 respondents. Based on the results of hypothesis testing (t), human capital affects the perceived performance of farmers and customer capital affects the perceived performance of farmers
Study of Palm Oil Mill Effluents Treatment Using Bio Engineered Structure Biomedia
Palm Oil Mill Effluent (POME) is waste produced by the palm oil processing mills in Malaysia and also generates large quantities of liquid waste. This research is aim to remove high content of suspended solids and oil in POME by using Bio Engineered Structure (BES) bio media. Besides that, it also to investigate condition of BES biomedia for POME treatment in bioreactor system and also the main factors affecting BES biomedia performance in POME treatment. The BES biomedia for POME wastewater treatment system is a compact biological purification system and enhanced the conditions for the microbiology to breakdown the pollution. The nutrient broth mixed with Pseudomonas putida (P. putida) was injected to BES biomedia tank with the ratio of 1:9 P. putida to POME. The growth of P. putida was compared between in shake flask and BES biomedia reactor. In shake flask, the P. putida take a shorter time to encounter with the environment while in BES biomedia reactor it take more period to encounter with a new environment. From the aeration rate, it shows that at rate of one L/min have the highest removal efficiency of Chemical Oxygen Demand (COD), 46.73%, Biochemical Oxygen Demand (BOD), 99.03% and Total Suspended Solids (TSS), 71.88%. As conclusion, BES biomedia is potentially to be a good method to treat POME that will reduce the uncontrolled waste and environmental pollution to our country