Agent Based Modeling of Electronic Markets To Analyze the Sustainability of Mutual Cooperation

According to game theory, dominant strategy of Prisoner’s Dilemma game is defecting. Since online trading between two strangers falls in the realm of a Prisoner’s Dilemma, failure should be the only logical conclusion of such electronic commerce situation. Traders are less likely to cooperate since they are not required to deal with the same buyer again given the enormous population of online traders. Thus one could argue that markets like eBay should never exist. Then what is the reason behind resounding success of such electronic markets? The answer lies in the reputation system that they established. Google page rankings and reader reviews on various sites like Amazon.com and Epinions.com are some other examples of the reputation system pointing towards the enormous influence that they wield in our everyday life. This research thus attempts to analyze importance of reputation system in an online trading using Agent Based Simulation. The effect of reputation system on the sustainability of mutual cooperation between online traders is analyzed by taking into account key factors like level of gullibility of online traders and the weight of influence given to their past behavior. Results indicate that reputation system is certainly capable of sustaining cooperation among online traders. However, weightage given to the past behavior of agents should be decided only after taking into account the level of gullibility of agents. Use of agent based modeling for studying dynamics of online trading is a relatively new concept. Sustaining cooperation among online traders is often perceived to be difficult task. The reputation system proposed in this research is expected to make contribution towards this goal

ANALISIS PRODUKTIVITAS PEKERJA PADA PROYEK PEMBANGUNAN GEDUNG DPRD KOTA SAMARINDA KALIMANTAN TIMUR

Produktivitas merupakan faktor mendasar yang mempengaruhi performasi kemampuan bersaing dalam industri kontruksi. Produktivitastenagakerjaakansangatberpengaruhjugaterhadapbesarnyakeuntunganataukerugiansuatupr oyek.Dalam mengukur tingkat produktivitas tenaga kerja ada berbagai macam cara, salah satunya dengan meneliti besarnya tingkat LUR ( Labour Utilitation Rate ) masing-masing pekerja, yaitu meneliti sampai seberapa besar tingkat efektivitas para pekerja dala bekerja. Penelitian ini dilakukan menggunakan metode uji validitas, uji realibilitas, uji normalitas, uji regresi dan uji hipotesis.Dimana data diperoleh dengan mengumpulkan data primer dan data sekunder, yang kemudian dianalisis menggunakan metode statistika parametris dengan bantuan program SPSS. Berdasarkan hasil penelitian yang dilakukan, Analisis Produktivitas Pekerja Pada Proyek Gedung Kantor DPRD kotasamarinda Kalimantan timurmasihbanyakkendala yang mempengaruhi produktivitas pekerja pada proyek tersebu

ANALISIS PRODUKTIVITAS PEKERJA PADA PROYEK PEMBANGUNAN GEDUNG DPRD KOTA SAMARINDA KALIMANTAN TIMUR

Produktivitas merupakan faktor mendasar yang mempengaruhi performasi kemampuan bersaing dalam industri kontruksi. Produktivitastenagakerjaakansangatberpengaruhjugaterhadapbesarnyakeuntunganataukerugiansuatupr oyek.Dalam mengukur tingkat produktivitas tenaga kerja ada berbagai macam cara, salah satunya dengan meneliti besarnya tingkat LUR ( Labour Utilitation Rate ) masing-masing pekerja, yaitu meneliti sampai seberapa besar tingkat efektivitas para pekerja dala bekerja. Penelitian ini dilakukan menggunakan metode uji validitas, uji realibilitas, uji normalitas, uji regresi dan uji hipotesis.Dimana data diperoleh dengan mengumpulkan data primer dan data sekunder, yang kemudian dianalisis menggunakan metode statistika parametris dengan bantuan program SPSS. Berdasarkan hasil penelitian yang dilakukan, Analisis Produktivitas Pekerja Pada Proyek Gedung Kantor DPRD kotasamarinda Kalimantan timurmasihbanyakkendala yang mempengaruhi produktivitas pekerja pada proyek tersebu

Determinants of agricultural land valuation in the province of Huambo, Angola: A quantitative analysis

This work aims at presenting a review of the literature on agricultural land valuation, highlighting the elements of real estate valuation and the factors that determine the price of an agricultural land in the province of Huambo in Angola. A quantitative methodology was used, based on the collection of data from 612 agricultural properties that were up for negotiation in the province of Huambo in Angola. The valuation of an agricultural land is of great importance for development and economic growth in Africa. In the assumed methodology, multiple linear regression was employed. The results allow us to conclude that variables such as the land being legal, having electricity, being located on the urban fringe with possible future urbanization, being a location close to the urban center, facing a busy road, and allowing for the easy use of machines have a significant impact on the value of the land in question. This study contributes to the development and appreciation of the agricultural world, which are aspects that can greatly help in improving the environment and sustainability of the rural world

Influential factors in the evaluation of agricultural lands in the Huambo province, Angola

The possession and appraisal of agricultural fields have significant economic and social impacts. The objective of this study is to examine the perception of farmers in the Huambo Province, Angola, regarding the characteristics that enhance and diminish the value of agricultural lands in the process of buying and selling. The utilized quantitative methodology is based on a questionnaire administered to farmers in the Huambo Province. The sample size consists of 644 respondents. The results allow us to conclude that the income generated from farming activities and the presence of infrastructure greatly facilitate the appraisal of agricultural fields. Conversely, the absence of legal ownership documentation and conflicts related to land ownership reduce the value of the fields. The exploratory factor analysis identified seven determinant factors, responsible for explaining 61.334% of the total variance, in the appraisal of agricultural fields: inherent location characteristics of the property, market dynamics related to agricultural fields, the availability of water on the property, proximity to tourist destinations, physical conditions of the fields, the positive externalities generated, and the advantages offered by the fields. We believe that this study will assist appraisers, farmers, and public administration in understanding the factors that positively and negatively impact the appraisal of agricultural fields

Influential factors in the evaluation of agricultural lands in the Huambo province, Angola

The possession and appraisal of agricultural fields have significant economic and social impacts. The objective of this study is to examine the perception of farmers in the Huambo Province, Angola, regarding the characteristics that enhance and diminish the value of agricultural lands in the process of buying and selling. The utilized quantitative methodology is based on a questionnaire administered to farmers in the Huambo Province. The sample size consists of 644 respondents. The results allow us to conclude that the income generated from farming activities and the presence of infrastructure greatly facilitate the appraisal of agricultural fields. Conversely, the absence of legal ownership documentation and conflicts related to land ownership reduce the value of the fields. The exploratory factor analysis identified seven determinant factors, responsible for explaining 61.334% of the total variance, in the appraisal of agricultural fields: inherent location characteristics of the property, market dynamics related to agricultural fields, the availability of water on the property, proximity to tourist destinations, physical conditions of the fields, the positive externalities generated, and the advantages offered by the fields. We believe that this study will assist appraisers, farmers, and public administration in understanding the factors that positively and negatively impact the appraisal of agricultural fields

Sequence variation in mature microRNA-608 and benefit from neo-adjuvant treatment in locally advanced rectal cancer patients

Single nucleotide polymorphisms (SNPs) in microRNA genes have been associated with colorectal cancer (CRC) risk, survival and response to treatment. Conflicting results are available on the association between rs4919510, a SNP in mature miR-608 and clinical outcome in CRC. Here, we analyzed the association between rs4919510 and benefit from perioperative treatment in a randomised phase II trial of neoadjuvant Capecitabine and Oxaliplatin (CAPOX) followed by chemo-radiotherapy, surgery and adjuvant CAPOX ± Cetuximab in high-risk locally advanced rectal cancer (LARC). A total of 155/164 (94.5%) patients were assessable. 95 (61.3%) were homozygous for CC, 55 (35.5%) heterozygous (CG) and 5 (3.2%) homozygous for GG. Median follow-up was 64.9 months. In the CAPOX arm the 5-year progression-free survival (PFS) and overall survival (OS) rates were 54.6% and 60.7% for CC and 82.0% and 82.1% for CG/GG, respectively (HR PFS 0.13, 95% CI: 0.12-0.83, P = 0.02; HR OS 0.38, 95% CI: 0.14-1.01, P = 0.05). In the CAPOX-C arm PFS and OS were 73.2 and 82.2%, respectively for CC carriers and 64.6 and 73.1% for CG/GG carriers (HR PFS 1.38, 95% CI: 0.61-3.13, P = 0.44; HR OS 1.34, 95% CI: 0.52-3.48, P = 0.55). An interaction was found between study treatment and rs4919510 genotype for both PFS (P = 0.02) and OS (P = 0.07). This is the first study investigating rs4919510 in LARC. The CC genotype appeared to be associated with worse prognosis compared to the CG/GG genotype in patients treated with chemotherapy and chemo-radiotherapy alone. Addition of Cetuximab to chemotherapy and chemo-radiotherapy in CC carriers appeared to improve clinical outcome

PENERAPAN METODE INQUIRY UNTUK MENINGKATKAN HASIL BELAJAR IPA SISWA KELAS V SD KATOLIK SANTO ALOYSIUS KECAMATAN RAPPOCINI KOTA MAKASSAR

Fidelya Lote’, 2016. Penerapan Metode Inquiry untuk Meningkatkan Hasil Belajar IPA Pada Siswa Kelas V SD Katolik Santo Aloysius Kecamatan Rappocini Kota Makassar. Skripsi. Dibimbing oleh Dra. Amrah, S.Pd., M.Pd dan Dr. Andi Nurochmah, M.Pd. Program Studi Pendidikan Guru Sekolah Dasar Fakultas Ilmu Pendidikan Universitas Negeri Makassar. Masalah penelitian ini adalah rendahnya hasil belajar IPA siswa kelas V SD Katolik Santo Aloysius Makassar. Rumusan Masalah dalam penelitian ini adalah Bagaimanakah Penerapan Metode Inquiry untuk meningkatkan hasil belajar IPA pada siswa kelas V SD Katolik Santo Aloysius Kecamatan Rappocini Kota Makassar?. Tujuan penelitian ini adalah untuk mendeskripsikan penerapan metode inquiry untuk meningkatkan hasil belajar IPA pada siswa kelas V SD Katolik Santo Aloysius Kecamatan Rappocini Kota Makassar. Pendekatan yang digunakan dalam penelitian ini adalah kualitatif dengan jenis penelitian adalah Penelitian Tindakan Kelas (PTK) yang bersiklus yaitu meliputi perencanaan, pelaksanaan, observasi, dan refleksi. Fokus penelitian ini adalah penerapan metode inquiry dan hasil belajar siswa. Subjek penelitian adalah guru kelas V dan siswa kelas kelas V SD Katolik Santo Aloysius Makassar dengan jumlah siswa 31 orang. Teknik pengumpulan data yang digunakan adalah observasi, tes, dan dokumentasi. Analisis data yang digunakan adalah analisis kualitatif dan kuantitatif. Hasil penelitian ini menunjukkan bahwa metode inquiry dapat meningkatkan hasil belajar siswa pada mata pelajaran IPA di kelas V SD Katolik Santo Aloysius Kecamatan Rappocini Kota Makassar. Hal ini dapat dilihat dari hasil observasi aktivitas mengajar guru pada siklus I dikategorikan cukup sedangkan pada siklus II dikategorikan baik. Aktivitas belajar siswa pada I dikategorikan cukup sedangkan pada siklus II dikategorikan baik. Peningkatan hasil belajar siswa dapat dilihat dari setiap siklus dengan presentase ketuntasan hasil belajar siswa pada siklus I masuk pada kategori cukup dan belum dikategorikan tuntas secara klasikal karena presentase ketuntasan belum mencapai standar ketuntasan yang telah ditentukan, selanjutnya pada siklus II presentase ketuntasan hasil belajar siswa berada pada kategori sangat baik dan tuntas secara klasikal. Kesimpulan penelitian ini adalah metode inquiry dapat meningkatkan hasil belajar siswa pada mata pelajaran IPA pada siswa kelas V SD Katolik Santo Aloysius Kecamatan Rappocini Kota Makassar

Korleis YouTube-bedrifter sine val av inntektsstraumar påverkar videoinnhaldet dei produserer

Denne masteroppgåva ser på korleis val av inntektsstraum hjå YouTube-bedrifter påverkar innhaldet dei produserer. Målet med forskinga er å betre forstå maktspelet mellom internettvideoskapar, videodelingsplattform og eksterne annonsørar, og korleis dette påverkar sluttproduktet som blir servert til publikum. Oppgåva er eit kvalitativt induktivt studie som nyttar empiriske data frå eit variert utval YouTube-bedrifter. Dataa frå desse 17 analyserte YouTube-bedriftene i dette studiet består av fem djupneintervju og tolv offentlege førstehandskjelder, og dei har til saman over 8.4 milliardar visningar på internettvideoane dei har produsert. Oppgåva bidreg til litteraturen ved å avdekke og nyansere ukjende faktorar om korleis kreative bedrifter som desse kan drive berekraftig produksjon av internettvideoar. Funna tyder på at bevisstheit rundt val av inntektsstraum er avgjerande for korleis inntektsstraumane til internettvideoskaparar påverkar innhaldet dei produserer. YouTube-bedrifter som i størst grad er prega av økonomisk motivasjon har ein tendens til å vere meir åpne for å endre innhaldet i internettvideoane, så dei kan prioritere stabile og kontinuerlege inntektsstraumar. Til samanlikning har kreativt motiverte YouTube-bedrifter ein tendens til å vere meir åpne for endring av inntektsgenererande faktorar, slik at innhaldet dei produserer i større grad er upåvirka av kommersielle krefter. Anbefalt vidare forsking omhandlar digital distribusjon av fysiske produkt. Fleire YouTube-bedrifter lagar fysiske produkt og viser dei fram til eit stort publikum gjennom strategisk utforma internettvideoar. Denne framstillinga av produktet tilfredsstiller publikum i stor nok grad til at YouTube-bedrifta slepp å produsere ytterlegare fysiske kopiar av det fysiske produktet - kun digitale.This Master’s thesis looks at how the choice of revenue streams in YouTube companies affects the content they produce. The goal with the research is to better understand the power play between internet video creators, video sharing platforms and third party advertisers, and how this affects the end product that is served to the public. The thesis is a inductive qualitative study that uses empirical data from a varied selection of YouTube companies. The analyzed data from the 17 YouTube companies in this study consist of five in-depth interviews and twelve public first-hand sources. These companies have more than 8.4 billion views combined. The thesis contributes to the literature by uncovering unknown factors about how creative companies can execute sustainable internet video production. The findings suggest that awareness of choice of revenue streams is crucial to how the revenue streams affect the content internet video creators produce. YouTube companies that are predominantly financially motivated, tend to be more open to changing the content of internet videos, in order to prioritize stable and continuous revenue streams. By comparison, creatively motivated YouTube companies tend to be more open to changing revenue-generating factors, so that the content they produce is less affected by commercial forces. Recommended further research consists of digital distribution of physical products. Some YouTube companies create physical products and show them to a large audience through strategically created internet videos. This presentation of the product satisfies the audience to a large enough extent that the YouTube company avoids having to produce additional physical copies of the physical product - only digital