Analisis Propagasi Gelombang Radio Menggunakan DLink 624 Pada Jurusan Teknik Elektro Universitas Syiah Kuala

Telecommunication technology nowadays tries to implement Personal Communication System (PCS) which has Personal Mobility (PM) and Terminal Mobility (TM). PCS can be define as radio technology that uses Radio Frequency (RF) as a transmission medium, which is small and light, and can be implemented indoor and outdoor. One equipment that implements this technology is called D-Link. The application of D-Link is to communicate among users either indoor or outdoor. Research methodology includes deciding the parameters and calculating the path loss between base station and portable station at the second floor of Electrical Engineering Department Syiah Kuala University. The final result was that the communication between the base station and portable station in the rooms at the second floor could exist but the process is rather slow and can experience discontinuity. Those were happenbecause the receiver\u27s power was below the threshold of the portable station level, i.e.. -40 dB

Pengaruh Model Pembelajaran Berbasis Masalah Terhadap Hasil Belajar Fisika Siswa Kelas X Sman 2 Praya Tahun Pelajaran 2015/2016

– The purpose of this study was to investigate the influence of problem based learning model toward physics learning outcomes at SMAN 2 Praya grade X at the academic year 2015/2016. This study was experiment with post-test only control group design. The population of this study were all students of Xth grade with number of students were 400 students. Cluster random sampling was used to choose the class sample with X-4 as experiment class and X-6 as control class. The instrument of this study used multiple choise test with 5 alternative answer. Based from the result, data were analyzed using t-test polled varians. The data obtained 3.42 for the t-hint and 1.99 for the t-table with significant level 5%. Therefore t-hint > t-table, the H0 rejected and Ha be accepted. This result shows that problem based learning model is influencing the stuent's physics academy result at SMAN 2 Praya Xth grade academic year 2015/2016

Uji Efektifitas Beberapa Entomopatogen Pada Larva Oryctes Rhinoceros L. (Coleoptera: Scarabaeidae) Di Laboratorium

Research on title The Effectivity of Some Entomopathogenic on the Larvae Oryctes rhinoceros L.(Coleoptera: Scarabaeidae) in the Laboratory". The objective of this research was to know theeffectifity of entomopathogenic (Bacillus thuringiensis, Beauveria bassiana, and Metarhiziumanisopliae) with different level of concentration. The research was conducted at the InsectLaboratory, Faculty of Agriculture, University of Sumatera Utara, From July to August 2013, usinga randomized complete design (RAL) non factorial with ten treatments (control, B. thuringiensis 25,50, and 75 g/l, B. bassiana 25,50, and 75 g/l, M. anisopliae 25, 50, and 75 g/l) with threereplications. The results showed that the highest percentage (100%) of mortality larvae in thetreatment B. thuringiensis 75 g/l and the lowest (50,71%) in B. bassiana 25 g/L. The highestpercentage (100%) of larvae infected with entomopathogenic in treatment B.thuringiensis 75 g/l, B.bassiana 75 g/l, M. anisopliae 75 g/l , and the lowest (72,93%) in treatment B. bassiana 25 g/L. Thedeath behavior of larvae O. rhinoceros infected entomopathogenic characterized by the larvaebecome slow, decreased of appetite, and have a different colors

Uji Efektivitas Suspensi Baculovirus Oryctes Dan Metarhizium Anisopliae (Metch.) Sorokin Terhadap Brontispa Longissima Gestro. (Coleoptera :Chrysomelidae) Di Laboratorium

The objective of this research was to study the effectifity of suspension Baculovirus oryctes andMetarhizium anisopliae (Metch.) Sorokin to control Brontispa longissima Gestro.(Coleoptera : Chrysomelidae). The research was held at the laboratory of plant pest,Agroecotechnology Program Study, Agricultural Faculty, University of Sumatra Utara, Medan onApril to Mei 2014. This methode used Randomized Complete Design (RAL) of non Factorial thatconsist of 7 treatments and 4 replications. The research treatments were: 1. T0 : control(500 mL aquadest) 2. T1 : 40 ml B. oryctes / 500 mL aquadest 3. T2 : 50 ml B. oryctes / 500 mLaquadest 4. T3 : 60 mL B. oryctes / 500 mL aquadest 5. T4 : 40 gr M. anisopliae /500 mLaquadest 6. T5: 50 gr M. anisopliae / 500 mL aquadest 7. T6 : 60 gr M. anisopliae / 500 mLaquadest. The results showed that the highest percentage of mortality on T6(60 gr M. anisopliae / 500 mL aquadest) was about 95.00% and the lowest on T1(40 ml B. oryctes / 500 mL aquadest) was about 60.00%

Persepsi Pasien terhadap Pelayanan Kesehatan Perawat di Ruang Rawat Inap Kelas III Rumah Sakit Imelda Medan Tahun 2013

This research is deskriftif by using a quantitative approach. The population in this study are all the patients in the inpatient room class III Hospital Imelda and the number of samples as the respondents a total of 65 people.The results showed the category indicator is direct evidence or real nurses are the majority category either as many as 54 people (83.1%), the category of indicators of reliability of nurses is the majority of the categories are good enough as many as 37 people (56.9%), indicator category respond swiftly nurses are the majority category either as many as 28 people (43.1%), indicator categories convinces nurses are the majority category either as many as 25 people (38.5%) and categories of indicators are the majority of nurses empathy categories less well as many as 26 people (40,0%).In order to change the perception of patients who are not good indicators of health care nurses in inpatient hospitals, Imelda, required the efforts of requiring inpatient room nurses in training activities and seminars on health so that knowledge is always growing and developing as well as they can provide a wide range of health information to patients with precise, hospital management need to set policies and measures to deal with the patient's complaint about the persuasive approach to nurse the nurse through the supervision of the head of the room and the awarding of reward

Detection of Plasmodium Falciparum in Blood Using Dna Probe, Ppf 14

A DNA probe pPF14, which is species specific to P.falciparum have been used to identify malaria species. The blood specimens were pretreated before spotting onto nitrocellulose filter to eliminate non specific hybridization of DNA to blood components. In this study, die DNA probe pPF14 was used for detection of P.falciparum in blood specimens spotted directly (a simple preparation of sample) onto nitrocellulose filter. Ninety two blood specimens from individuals with fever living in a P.falciparum endemic area were collected at the local Primary Health Centre in Lampung. Blood was collected by finger prick technique using heparinized capillary tubes. Twenty microliter of blood was plotted directly onto nitrocellulose filter, extracted, treated with proteinase K and tested with DNA probe pPF14. Another 20 microliter of blood was used for thick smear and examined microscopically. Nineteen out of 92 (20,7 %) of the blood specimens were found to contain P.falciparum parasites by DNA probing and by thick smear. The densities of parasites ranged from 350 to 28,775 per microliter. The jDNA probing technique was successfully done for the detection of P.falciparum in the laboratory. However, this technique seems not to be quite sensitive for parasitological survey (detects 40-50 parasites per microliter of blood); while using thick smear examination, 5-10 parasites per microliter of blood could be detected with confidence. The important issue in this case is that no special treatment before spotting the blood onto nitrocellulose filter was needed to eliminate non-specific hybridization, when protease treatment was used. Collection of specimens would be easily done in the field

Uji Efektivitas Ekstrak Daun Binahong (Anredera cordifolia (TEN) Steenis) terhadap Jumlah Fibroblas dan Ketebalan Kolagen pada Luka Infeksi Tikus Wistar

Binahong (Anredera cordifolia) is a medicinal plant that can be used to accelerate the healing process of wound infections. The purpose of this study was to determine the effect of the ethanol extract of binahong leaves (Anredera cordifolia) on the healing process of incision wounds infected by Staphylococcus aureus. The ethanol extract of binahong leaves is made in the form of ointments to facilitate the application and release of the drug into the skin layer. The study used 24 male Wistar rats which were divided into 4 treatment groups namely the group without treatment, the group with fusidic acid ointment, the group with 20% extract of binahong leaf ethanol extract and the group with 40% extract of binahong leaf ethanol. Infected mice were treated and then observed the number of fibroblasts and collagen thickness on day 3 and day 7. Data was analyzed using One Way Anova followed by Duncan Test. The results showed that the ethanol extract of binahong leaves 40% could increase the number of fibroblasts on the 3rd day (43.33 ± 8.08) and the 7th day (61.67 ± 7.02), the ethanol extract of the binahong leaf 20% on 3rd day (31.67 ± 5.50) and 7th day (57.00 ± 7.55). The ethanol extract of binahong leaves 40% increased the thickness of collagen on the 3rd day (10.37 ± 2.69) and the 7th day (16.55 ± 0.32), the ethanol extract of the binahong leaf 20% on the 3rd day ( 8.87 ± 0.71) and 7th day (12.09 ± 1.26). Based on the results of the study, it can be concluded that the ethanol extract of binahong leaves 40% can accelerate the healing process of wound infections by increasing the number of fibroblasts and collagen thickness better than the administration of ethanol extracts of binahong leaves 20%

Sintesis Lithium Titanat dengan Metode Hidrotermal dan Efek Suhu Sintering pada Karakteristik Nanostrukturnya

SYNTHESIS OF LITHIUM TITANATE USING HYDROTHERMAL METHOD AND THE EFFECT OF SINTERING TEMPERATURE ON ITS NANOSTRUCTURE. Lithium titanate is one of the compounds used as anode material in lithium ion batteries. This compound is synthesized using hydrothermal method at 120oC for 15 h bymixing TiO2 anatase and lithium carbonate (Li2CO3) as a source of lithium followed by sintering at 550, 650 and 750 oC to obtain the LTO with spinel crystalline phase. The TiO2 anatase in this research was made by the sol-gel method with calcination temperature at 300oC for 2 hours. The obtained compounds were investigated using X-ray diffraction (XRD), Brunauer-Emmet-Teller (BET), FT-IR spectroscopy and field emission scanning electron microscope (FE-SEM). The FE-SEM micrograph results show the compounds of lithium titanate (Li4Ti5O12), Li2TiO3 and the remainder of TiO2 rutile with irregular morphological structures as agglomerates. The XRD and BET results shows that sintering at 550 oC produced average crystallite size of 33.45 nm and a surface area of 6.65 m2/g, dominated by TiO2 rutile. Further, the sintering temperature of 650 oC produced average crystallite sizes of 27.70 nm, surface area of 1.91 m2/g, dominated by TiO2 rutile. Finally, the temperature of 750 oC produced average crystallite sizes of 52.06 nm, dominated by lithium titanate (Li4Ti5O12). The FT-IR results confirms the presence of LTO spinel in the sintered product. Finally, the aim of this work to obtain the crystallite size below 100 nm has been achieved

REGENERASI ALAMI SEMAI Rhizophora Apiculata DI KAWASAN INDUSTRI PERMINYAKAN DAN KAWASAN NON INDUSTRI PROVINSI RIAU

Hutan mangrove menyediakan berbagai pelayanan ekologi, namun saat ini sedang mengalami tekanan dari aktivitas manusia seperti industrialisasi di wilayah pesisir. Kajian regenerasi alami semai populasi Rhizophora apiculata telah dilakukan diantara kawasan industri perminyakan dan kawasan non industri Provinsi Riau. Hasil penelitian menunjukan bahwa kerapatan regenerasi semai alami R. apiculata tertingginya berada di kawasan non industri (Stasiun 4) dan kerapatan semai alami terendahnya berada di kawasan industri perminyakan (Stasiun 1, 2 dan 3). Selain itu, faktor kualitas perairan masih dalam batasan toleransi bagi kehidupan regenerasi semai alami R. apiculata dengan suhu perairan tertingginya berada di Stasiun 3, salinitas (Stasiun 4), pH (Stasiun 1), DO (Stasiun 4) dan potensial redoks (Stasiun 1). Selain itu, berdasarkan analisis keterkaitan kualitas perairan terhadap regenerasi semai alami R. apiculata mengunakan PCA, pada Stasiun 2, 3 dan 4 dicirikan oleh parameter suhu dan DO. Sementara Stasiun 1 dicirikan oleh parameter potensial redoks dan pH