Penelitian bertujuan untuk mengetahui bagaimana pengaruh pendekatan problem-based learning pada peningkatan penguasaan konsep dan keterampilan berpikir kreatif siswa SMK pada materi karbohidrat. Penelitian ini merupakan penelitian kuasi ekperimen, dengan desain kelompok kontrol non-ekuivalen yang  melibatkan dua kelompok. kelas eksperimen yang mendapat pembelajaran dengan pendekatan Problem-Based Learning dan kelas kontrol yang mendapat pembelajaran menggunakan pendekatan pembelajaran konvensional. Instrumen yang digunakan pada penelitian ini adalah pretest, posttest dan angket, innstrumen pretest posttest berupa 20 soal pilihan ganda (untuk menguji kemampuan penguasaan konsep) dan 4 soal essay(untuk menguji keterampilan berpikir kreatif). Sebelum melakukan pengujian hipotesis maka data penelitian harus memenuhi uji prasyarat yang meliputi uji normalitas (uji Shapiro-Wilk), uji homogenitas varians (Lavene test), uji kesamaaan kemampuan awal siswa (uji t), uji hipotesis penelitian pada posttest dan N-gain  dilakukan uji t (parametric) atau Mann Whetney (non parametric). Berdasarkan analisis data diperoleh N-Gain keterampilan berpikir kreatif  siswa kelas yang mendapatkan pembelajaran dengan PBL lebih tinggi dibandingkan kelas kontrol yaitu sebesar 0,42 (kategori sedang untuk kelas eksperimen). Namun N-Gain kemampuan penguasaan konsep siswa kelas kontrol lebih tinggi dibandingkan kelas ekperimen yaitu sebesar 0,39 (kategori sedang untuk kelas kontrol)

Penalaran merupakan salah satu komponen penting yang harus dikuasai oleh siswa dan kepribadian siswa juga mempengaruhi penalaran siswa. Tujuan penelitian ini adalah untuk mendeskripsikan penalaran adaptif siswa SMP dengan kepribadian introvert dalam memecahkan masalah matematika. Jenis penelitian ini adalah penelitian deskriptif dengan pendekatan kualiatif. Subjek penelitian ini dipilih dari 30 siswa dengan teknik pemilihan subjek, purposive sampling. Subjek yang terpilih adalah dua orang siswa SMP yang memiliki kemampuan pemecahan masalah yang baik dan memiliki tipe kepribadian introvert. Metode pengumpulan data yang digunakan berupa metode angket, tes dan wawancara. Instrumen tes juga divalidasi oleh validator terlebih dahulu sebelum dipakai. Siswa diberi tes soal pemecahan masalah dan kemudian diwawancara untuk mengetahui penalaran adaptifnya dalam memecahkan masalah matematika. Kredibilitas data dijamin dengan menggunakan triangulasi metode. Berdasarkan hasil analisis data, diperoleh deskripsi penalaran adaptif siswa introvert yaitu siswa dapat menemukan informasi yang ada pada soal, kemudian dapat memperkirakan strategi atau rumus yang tepat untuk menyelesaikan masalah, siswa mampu melakukan penghitungan ulang untuk memastikan jawaban yang diperoleh benar, siswa dapat menyelesaikan masalah dengan runtutan yang sesuai menggunakan informasi yang diperoleh serta dapat menarik kesimpulan pada semua masalah yang diberikan.

Semangka (Citrullus lanatus) merupakan buah yang disukai oleh sebagian masyarakat Indonesia karena rasanya yang manis dan segar serta banyak mengandung air.  Fruit    leather    dapat dijadikan alternatif olahan pangan yang memiliki daya simpan tinggi (hingga 12 bulan). Produk ini dibuat dari bahan dasar buah, dengan bentuk hancuran buah (puree) yang sudah dikeringkan dalam oven. Pembuatan  fruit    leather    dari semangka perlu dilakukan penambahan zat penstabil karena berguna untuk meningkatkan tingkat viskositas, mencegah terjadinya sineresis serta untuk memberi rasa manis.  Carboxyl methyl cellulose  (CMC) merupakan zat penstabil yang biasa digunakan dalam produk makanan atau minuman yang berasal dari buah-buahan. Metode penelitian yang digunakan adalah rancangan acak kelompok (RAK) satu faktorial yaitu kadar CMC dengan 5 level (0,5%; 0,75%; 1%; 1,25%; 1,5%). Masing-masing perlakuan dilakukan pengulangan sebanyak 4 kali. Hasil dari penelitian menunjukkan perbedaan konsentrasi CMC akan menghasilkan perbedaan pada beberapa parameter seperti:    Viskositas  fruit    leather    yaitu berkisar antara 11461,33-3984,67 Cp, kadar air    yaitu 16,45-21, 23%bb dan  tensile      strength    yaitu    1,26-2,76.    Hasil skoring dari analisa sensori menunjukkan warna fruit    leather    semangka adalah kuning, tekstur pada tiga sampel terasa lunak, satu sampel terasa agak lunak serta satu sampel lainnya terasa keras. Penilaian skoring terhadap rasa  fruit leather  semangka menunjukkan tiga sampel terasa manis dan dua sampel terasa kurang manis. Secara keseluruhan pada hasil tingkat kesukaan menunjukkan panelis suka terhadap 3 sampel yang diujikan, dan merasa kurang suka terhadap 2 sampel yang diujikan. Kesimpulan dari penelitian ini adalah  penambahan konsentrasi CMC    dalam pembuatan  fruit    leather    dari semangka kuning akan meningkatkan viskositas, kadar air, dan  tensile      strength    dari produk, serta pada uji sensori menunjukkan sampel dengan konsentrasi CMC 0,75% memiliki tingkat tekstur, rasa dan kesukaan yang tinggi.

Career development, motivation and job satisfaction are interrelated in influencing the performance of an employee. The purpose of this study was to determine the effect of career development, motivation and job satisfaction on employee performance at BKPP Semarang City. The sample in this study took the entire population of employees at BKPP Semarang City as many as 70 respondents. Data were collected using a questionnaire with a Likert scale. The results of this study indicate that career development has a significant effect on employee performance, motivation does not significantly affect employee performance and job satisfaction significantly affects employee performance. Simultaneously (together), the variables of Career Development, Motivation and Job Satisfaction have a contribution of 61.2% in influencing employee performance, while the remaining 38.8% is influenced by other variables outside of this study. 
Keywords: Career Development, Motivation, Job Satisfaction, Employee Performance

This study aims to determine and analyze the effect of work ethics on employee job satisfaction, the effect of job stress on employee job satisfaction, and the effect of work ethics and work stress on employee job satisfaction at PT. PLN (Persero) UIP3BS UPT Medan. The population in this study were all employees of PT. PLN (Persero) UIP3BS UPT Medan, totaling 60 people. The sampling technique used is a saturated sample; thus, the sample in this study was 60 employees of PT. PLN (Persero) UIP3BS UPT Medan. The data collection technique used is a questionnaire. The data analysis technique used is multiple regression. The results showed a positive and significant effect of work ethics on job satisfaction, there was a negative and significant effect of job stress on job satisfaction, and there was an influence of work ethics and work stress on job satisfaction at PT. PLN (Persero) UIP3BS UPT Medan

This study aims to produce a Brand Loyalty Improvement Model Based on Brand Satisfaction and Self Congruity for iPhone Users in Semarang City. The population in this study were iPhone users in the city of Semarang. The sampling technique was non-probability sampling, while the sample was set at 125 people. Data collection techniques used are interviews (Interview) and a list of questions (Questionaire). The data analysis method used in this research is the Structural Equation Model method. The results showed that Actual Self affected Brand Satisfaction, Actual Self had an effect on Brand Loyalty, Ideal Self had an effect on Brand Satisfaction, Ideal Self affected Brand Loyalty, Brand Satisfaction affected Brand Loyalty. Brand Satisfaction can positively mediate the influence of Actual Self on Brand Loyalty, and Brand Satisfaction can positively mediate the influence of Ideal Self on Brand Loyalty.

Consumer loyalty is an indication of the performance appraisal of the management of a company or business actor. This also applies to business actors who use internet technology as their marketing base. The proliferation of businesses that use the internet as a marketing method has also penetrated the transportation business. One of these online transportation service companies is Gojek, where GoRide is one type of service. The problem faced by GoRide is that there are several complaints from consumers that must be considered because it will affect the sustainability of using the product and of course it becomes a tendency for customers to be loyal to a certain object. The purpose of this study was to analyze the effect of the variables of trust, consumer satisfaction and promotion on GoRide consumer loyalty in Semarang municipality. The sampling technique used purposive sampling method. The analytical tool used is multiple linear regression. The results obtained are the variables of trust, customer satisfaction and promotion have a positive and significant effect on consumer loyalty GoRide in Semarang Municipality.

The purpose of this study is to examine the influence dual role conflict, burnout, and organizational justice on job satisfaction of the auditor employees in Badan Pemeriksa Keuangan (BPK) representatives of Central Java Province. Data were collected from questionnaires completed by 110 participants and analysed using Structural Equation Modeling (SEM), with AMOS 25.0 version. The findings reveal that dual role conflict had a psotive impact on job satisfaction. Further, burnout had a negative and significant on job satisfaction. Then organizational justice had a positive and significant impact on job satisfaction. Job satisfaction of Auditors at Badan Pemeriksa Keuangan (BPK) is most quickly achieved by reducing their burnout, followed by creating dual role conflict (functional), and creating organizational justice for them.

Social media is one of the devices that is now owned by almost all people. And social media is one of the ways for account owners from social media to interact easily without being disturbed by distance and time. As well as costs and also a much cheaper place. Because you only need to use the internet network alone. The use of social media is indeed one proof of how the development of science and technology is very sophisticated. And social media is a community need that is very profitable for society. Like 2 sides of a coin, apart from providing benefits, social media can also provide disadvantages for society. Especially in the socio-cultural sector and its changes. With the existence of social media, socio-cultural changes related to norms, habits, attitudes and also values contained in the community environment, will slowly erode and may be forgotten by people with new habits or norms. The progress and development of this technology can be seen by the increasingly advanced civilization of society and also on the social media side. And this development should pay attention to the impact that can arise in the community. Apart from providing losses, it turns out that there are distinct advantages for the community in introducing culture, traditions and also local wisdom to the community, especially in the province of North Sumatra.

The spice commodity has long been a mainstay of Indonesian exports to the world. Therefore, export of spice commodities needs to be maintained and increased in value in order to balance Indonesia’s trade balance. The potential of the European Union 15 as a large export market for Indonesian spices, so the export of spice commodities must be increased. The current worsening situation (the Sino-United States trade war) has increased the urgency of Indonesia’s exports to other countries. Specifically, this study aims to see the comparative development of Indonesian spice exports to the European Union 15. Revealed Comparative Advantage (RCA), Revealed Symmetric Comparative Advantage (RSCA) and Trade Balance Index (TBI) are used to determine the position of export competitiveness of spices in the European Union 15. The results showed that the RCA value for nutmeg, pepper and cloves > 1 so that the commodity is a competitive spice commodity and is in the maturity stage because it has a TBI> 0.8. Ginger has no competitiveness and is still in the export growth stage. Based on the RSCA, the variations in the competitiveness of the spices of nutmeg, pepper, and cloves during the period 2008 - 2018 have a value of> 0 which means that it has comparative competitiveness, while for ginger the value is <0 so that ginger does not have comparative competitiveness. Efforts that can be taken to further increase export competitiveness in the global market are by developing production and productivity so that they can export to other potential markets such as the Americas and Asia.