919 research outputs found

    Role of the Internet as an Alternative in the Web Media Promotions at Pertamina Uppdn - IV Semarang

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    The speed in obtaining information and communications become one tip to seizeopportunities. Pertamina as one of the tricks to seize opportunities. Pertamina as oneBMN company engaged in exploitation of natural resources, namely oil and naturalgas. Pertamina has a wide working area, covering the whole of Indonesia. To facecompetition in the free market will, needed a big campaign to introduce the productand provide information needed by customers or investors. Web is one solution indealing with these problems Using other than traditional media. By using the web onthe internet will reach a wider area without borders. Its use can reach other countriesand continents where else, also no time limit. So pertamina web will be accessible bycustomers and investors at any time 24 (twenty four) hour, with a cheaper cost. Witha good design will certainly attract Internet users to access or visit the web pertaminato obtain the required information

    Analisis Perilaku Mahasiswa Fakultas Ekonomi Dan Bisnis UMS Dalam Pembelian Helm Ink

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    Tujuan dari penelitian ini adalah untuk mengetahui apakah tingkat harga, kualitas produk, model, promosi akan mempengaruhi keputusan Mahasiswa dalam pembelian Helm INK. Dari penelitian yang dilakukan ini bermanfaat untuk mengetahui faktor apa yang paling dominan diantara fariabel diatas dalam keputusan pembelian helm merk INK dikalangan mahasiswa Fakultas Ekonomi Dan Bisnis UMS. Alat analisis yang digunakan untuk menjawab hipotesis dalam penelitian ini adalah chi square. Populasi dalam penelitian ini adalah seluruh mahasiswa Fakultas Ekonomi Universitas Muhammadiyah Surakarta. Adapun sampel dari penelitian ini adalah 100 mahasiswa Fakultas Ekonomi Dan Bisnis Universitas Muhammadiyah Surakarta. Berdasarkan hasil penelitian dapat diketahui bahwa jenis kelamin, umur, lama menjadi konsumen, jumlah uang saku perbulan mempunyai hubungan yang signifikan terhadap tingkat harga, kualitas produk, model, promosi, dan keputusan pembelian dalam membentuk keputusan pembelian helm INK dengan 2hitung > 2tabel . Hasil selisih antara nilai C Max dengan koefisien kontingensi menunjukkan bahwa antara umur dan kualitas produk memiliki selisih paling kecil dibandingkan dengan variabel yang lain, yaitu dengan nilai 0,000. Hal ini menunjukkan bahwa umur dan kualitas produk paling dominan yang mempengaruhi keputusan konsumen dalam melakukan keputusan pembelian terhadap helm INK

    Influence de la litiÚre foliaire de cinq espÚces végétales tropicales sur la diversité floristique des herbacées dans la zone du Ferlo (Senegal)

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    L’objectif de cette Ă©tude a Ă©tĂ© d’évaluer l’effet de la prĂ©sence de cinq plantes ligneuses: Balanites aegyptiaca (L.) Del., Acacia tortilis subsp. raddiana (Savi) Brenan, Acacia senegal (L.) Willd, Boscia senegalensis (Pers.) Lam. ex Poir. et Sclerocarya birrea (A. Rich.) Hochst. sur la diversitĂ© spĂ©cifique de la vĂ©gĂ©tation herbacĂ©e dans le Ferlo, au Nord-SĂ©nĂ©gal. Il a Ă©tĂ© procĂ©dĂ© Ă  un inventaire des espĂšces herbacĂ©es sous couvert et hors couvert des plantes ligneuses. Ensuite, une analyse floristique qualitative (familles, genres et espĂšces) a Ă©tĂ© rĂ©alisĂ©e Ă  partir de la liste floristique des diffĂ©rents inventaires. Cette analyse a Ă©tĂ© couplĂ©e Ă  une approche quantitative en utilisant le coefficient de similitude de SĂžrensen qui a servi Ă  dĂ©finir l’indice de diversitĂ© beta. Les rĂ©sultats de l’inventaire floristique ont permis de dĂ©nombrer 28 espĂšces herbacĂ©es rĂ©parties dans 25 genres et 15 familles. Les plantes ligneuses comme B. senegalensis, B. aegyptiaca et S. birrea possĂšdent la flore la plus riche avec 18 espĂšces chacune, alors que A. tortilis et A. senegal ont respectivement 12 et 9 espĂšces. Le tĂ©moin est le moins diversifiĂ© avec 6 espĂšces herbacĂ©es. Parmi les herbacĂ©es, Aristida mutabilis est la plus frĂ©quente contrairement Ă  Achyranthes aspera, Aristida adsentionis, Chloris barbata, Cleome  viscosa, Cyperus esculentus, Datura metel, Eragrostis pilosa et Indigofera hirsuta qui sont les espĂšces les moins frĂ©quentes. Les rĂ©sultats de l’AFC ont montrĂ© quatre groupements vĂ©gĂ©taux. Un premier groupement qui regroupe B. senegalensis, A. raddiana et le tĂ©moin, un groupement Ă  B. aegyptiaca, un groupement Ă  A. senegal et enfin un groupement Ă  S. birrea. Cette Ă©tude a permis de mettre en Ă©vidence la valeur de la prĂ©sence de l’arbre dans un systĂšme de production fortement dĂ©gradĂ©.Mots clĂ©s: SĂ©nĂ©gal, Ferlo, interaction arbre - herbe, AFC, diversitĂ© floristique

    Caractérisation agropédologique des sols de mboltime dans la zone des niayes (Sénégal)

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    L'objectif de cette étude était de faire une évaluation de la fertilité physico-chimique de différents sols du village de Mboltime et de déterminer les similarités relatives. Les horizons de cinq fosses pédologiques (P1 , P2, P3, P4 et P5) ouvertes dans les zones dunaires et inter-dunaires ont servi à cet effet. Les résultats obtenus ont montré que les horizons de surface sont sableux à sablo-limoneux avec des pH et conductivité électrique variant selon les profils et les horizons. Seul le profil P4 a montré des sols acides et salés au niveau des horizons P4H1, P4H3 et P4H5. Les autres profils ont montré des sols neutres à légÚrement alcalins et non salins. Les teneurs en matiÚre organique et azote total ont été assez faibles dans les profils 1, 2, 3 et 5, et moyens dans le profil 4 avec un rapport C/N variant de 2,72 à 16,50. Les teneurs en Ca2+, Mg2+, Na+ et K+ varient suivant le C et N. Le cation le plus abondant dans les sols a été le Ca2+; suivi du Mg2+ et du Na+ alors que K+ a été le cation le moins abondant. L'analyse factorielle des correspondances (AFC) a permis de mettre en évidence deux groupes de sols en fonction de la salinité et de l'acidité. Un groupe I constitué de sols trÚs salins et un groupe II constitué de sols non salins. Cette étude a mis en évidence deux contraintes majeures à la production végétale dans le village de Mboltime que sont la salinité et l'acidité des sols.Mots clés : Sol, Profil pédologique, Niayes, salinite ; Sénégal AGROPEDOLOGICAL CARACTERIZATION OF MBOLTIME SOILS IN NIAYES AREA (SENEGAL)The objective of this study was to evaluate physico - chemical properties of different soils from Mboltime village and relevant similarities. Horizons of five soil profiles (P1, P2, P3, P4 and P5) in the dune and inter-dune areaswere used for that purpose. The results showed variance in topsoil contents of sand with silt- loam, pH and electric conductivity according to the  profiles. Only the P4 profile presents acid and salty soil to the level asof horizons P4H1, P4H3 and P4H5. The other profiles presented neutral to slightly alkaline soil pH with limited salinity. The soil contents of organic matter, and total nitrogen were rather weak in the profiles 1, 2, 3 and 5, and moderate in profile 4. The C/N ratio values varied from 2.72 to 16.50 while soil contents of Ca2+, Mg2+, Na+ and K+ variations were according to C and N. The most abundant cations in land was Ca2+; followed by Mg2+, Na+ and K+ was the least abundant cationin soils. The factorial  correspondence analysis (FCA) showed two groups of soil according to  salinity and acidity mainly depending to high and low salinity respectively. This study showed two major constraints to land productivity in the village of Mboltime which are the salinity and the acidity of soils.Keywords : Soil, soil profile, salinity, Niayes, Senega

    Circadian rhythm of metabolic changes associated with summer heat stress in high-producing dairy cattle

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    The current study aimed to investigate the circadian rhythm of blood metabolic parameters associated with summer heat stress (HS) in dairy cows. Ten healthy lactating Holstein Friesian cows were followed during HS for three successive days at six different time points. Blood was sampled from each cow starting from 07:00AM; at 4-h intervals. Ambient air temperature and relative humidity were recorded, and temperature-humidity index (THI) was calculated as well. Respiration rate (RR) and rectal temperature (RT) were recorded for each cow at the time of blood sampling. Concentrations of glucose, non-esterified fatty acids (NEFA), total cholesterol (TC) and urea were measured in each blood sample. The THI values were >68 at all times of the day, and the highest values were recorded at 11:00AM, 03:00PM and 07:00PM (80.9, 83.7, and 80.8, respectively). All the cows showed a significantly higher RR and RT coinciding with higher THI values (93±4 and 39.6±0.1; 90.2±3.4, and 40.1±0.1; 87.6±4.1, and 39.8±0.1, respectively, P<0.05). The concentrations of glucose were the lowest at 11:00AM and 03:00PM (3.75±0.1 and 3.44±0.1 mmol/L, respectively, P<0.05). Decreased glucose concentrations coincided with increased NEFA concentrations, (0.43±0.01 and 0.56±0.02 mmol/L, respectively, P<0.05), and were highly negatively correlated (r=−0.50, P<0.001). The highest urea and TC concentrations were registered at 11:00AM (6.11±0.15 mmol/L and 109.9±2.2 mg/dl, respectively) whereas the lowest urea and TC values were recorded at 03:00AM (4.97±0.18 mmol/L and 99.5± 1.7 mg/dl, respectively, P<0.05). The results of the present study indicate that there was a circadian variation in glucose, NEFA, urea, and TC resulting in the most unfavorable metabolic condition during the hottest moment of the day in dairy cattle. Earlier work revealed that HS-metabolic changes are reflected in the follicular fluid. The circadian changes observed in the present study associated with HS may imply that also the microenvironment of the oocyte is affected

    3D Printing of Dapagliflozin Containing Self-Nanoemulsifying Tablets: Formulation Design and In Vitro Characterization

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    The 3D printing techniques have been explored extensively in recent years for pharmaceutical manufacturing and drug delivery applications. The current investigation aims to explore 3D printing for the design and development of a nanomedicine-based oral solid dosage form of a poorly water-soluble drug. A self-nanoemulsifying tablet formulation of dapagliflozin propanediol monohydrate was developed utilizing the semisolid pressure-assisted microsyringe (PAM) extrusion-based 3D printing technique. The developed formulation system consists of two major components (liquid and solid phase), which include oils (caproyl 90, octanoic acid) and co-surfactant (PEG 400) as liquid phase while surfactant (poloxamer 188) and solid matrix (PEG 6000) as solid-phase excipients that ultimately self-nanoemulsify as a drug encapsulated nanoemulsion system on contact with aqueous phase/gastrointestinal fluid. The droplet size distribution of the generated nanoemulsion from a self-nanoemulsifying 3D printed tablet was observed to be 104.7 ± 3.36 nm with polydispersity index 0.063 ± 0.024. The FT-IR analysis of the printed tablet revealed that no drug-excipients interactions were observed. The DSC and X-RD analysis of the printed tablet revealed that the loaded drug is molecularly dispersed in the crystal lattice of the tablet solid matrix and remains solubilized in the liquid phase of the printed tablet. SEM image of the drug-loaded self-nanoemulsifying tablets revealed that dapagliflozin propanediol monohydrate was completely encapsulated in the solid matrix of the printed tablet, which was further confirmed by SEM-EDS analysis. The in vitro dissolution profile of dapagliflozin-loaded self-nanoemulsifying tablet revealed an immediate-release drug profile for all three sizes (8 mm, 10 mm, and 12 mm) tablets, exhibiting >75.0% drug release within 20 min. Thus, this study has emphasized the capability of the PAM-based 3D printing technique to print a self-nanoemulsifying tablet dosage form with an immediate-release drug profile for poorly water-soluble drug

    The puzzle of self-reported weight gain in a month of fasting (Ramadan) among a cohort of Saudi families in Jeddah, Western Saudi Arabia

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    <p>Abstract</p> <p>Background</p> <p>During Ramadan fast, approximately one billion Muslims abstain from food and fluid between the hours of sunrise to sunset, and usually eat a large meal after sunset and another meal before sunrise. Many studies reported good health-related outcomes of fasting including weight loss. The objective of this study is to identify the local pattern of expenditure on food consumption, dietary habits during Ramadan and correlate that to self-reported weight gain after Ramadan in a group of families in Jeddah, Western Saudi Arabia.</p> <p>Methods</p> <p>A Cross-section study using a pre-designed questionnaire to identify the local pattern of expenditure on food consumption, dietary habits during Ramadan and correlate that to self-reported weight gain after Ramadan in a representative cohort of Saudis living in Jeddah. It was piloted on 173 nutrition students and administered by them to their families.</p> <p>Results</p> <p>A total of 173 Saudi families were interviewed. One out of 5 indicated that their expenditure increases during Ramadan. Approximately two thirds of the respondents (59.5%) reported weight gain after Ramadan. When asked about their perspective explanations for that: 40% attributed that to types of foods being rich in fat and carbohydrates particularly date in (Sunset meal) 97.7% and rice in (Dawn meal) 80.9%. One third (31.2%) indicated that it was due to relative lack of physical exercise in Ramadan and 14.5% referred that to increase in food consumption. Two thirds (65.2%) of those with increased expenditure reported weight gain.</p> <p>Conclusion</p> <p>Surprisingly weight gain and not weight loss was reported after Ramadan by Saudis which indicates timely needed life-style and dietary modification programs for a population which reports one of the highest prevalence rates of diabetes.</p

    Uncovering three-dimensional gradients in fibrillar orientation in an impact-resistant biological armour

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    The complex hierarchical structure in biological and synthetic fibrous nanocomposites entails considerable difficulties in the interpretation of the crystallographic texture from diffraction data. Here, we present a novel reconstruction method to obtain the 3D distribution of fibres in such systems. An analytical expression is derived for the diffraction intensity from fibres, explaining the azimuthal intensity distribution in terms of the angles of the three dimensional fibre orientation distributions. The telson of stomatopod (mantis shrimp) serves as an example of natural biological armour whose high impact resistance property is believed to arise from the hierarchical organization of alpha chitin nanofibrils into fibres and twisted plywood (Bouligand) structures at the sub-micron and micron scale. Synchrotron microfocus scanning X-ray diffraction data on stomatopod telson were used as a test case to map the 3D fibre orientation across the entire tissue section. The method is applicable to a range of biological and biomimetic structures with graded 3D fibre texture at the sub-micron and micron length scales
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