Prospects for a certified mint supply chain in Morocco based on an assessment of consumers' willingness to pay

In Morocco, there is a weak control of the quality of fruits and vegetables on the domestic market. The present study assesses the prospects for a certified mint value chain (either complying with legal criteria of maximum residue level or using organic production), based on interviews with 368 consumers and with actors of the current mint value chain. Among the consumers interviewed, 43% had reduced their consumption of mint between 2005 and 2015 due to concerns over the quality of mint, and 68% stated that they were willing to double the price they paid for mint in urban markets to get mint that complies with legal norms. A majority of interviewed coffee shops managers and urban resellers of mint also expressed their interest in selling certified mint. Mint appears as a relevant product to test a certified food chain in Morocco

Gelenkvierecke

In unserer Umgebung finden wir zahlreiche Phänomene kinematischer Art. Manche davon lassen sich schon mit recht elementarer Geometrie erklären. Gelenkvierecke, d.h. vier durch Gelenke miteinander verbundene Stangen, sind ein wichtiges Objekt kinematischer Betrachtungen. In diesem Beitrag sollen einige einfache Aussagen über und Beispiele zu Gelenkvierecken in unserer alltäglichen Umwelt aufgezeigt werden

Quantum money from knots

Quantum money is a cryptographic protocol in which a mint can produce a quantum state, no one else can copy the state, and anyone (with a quantum computer) can verify that the state came from the mint. We present a concrete quantum money scheme based on superpositions of diagrams that encode oriented links with the same Alexander polynomial. We expect our scheme to be secure against computationally bounded adversaries.Comment: 22 pages, 5 figure

Reanalysis in Hungarian Comparative Subclauses

My paper presents a diachronic study of the Left Periphery of Hungarian comparative subclauses, primarily focussing on the development of the complementisers and the operator. Adopting a cartographic approach, I will show that there were two main interrelated processes at work in the development of these subclauses, changing the initial configuration of hogy ‘that’ as a complementiser to a new one having mint ‘than’ as a C head, possibly followed by an overt operator. These two processes involve the reanalysis of mint from an operator to a complementiser by way of the relative cycle, and the appearance of new overt comparative operators due to a change in the deletion of the operator (Comparative Deletion)

Marginal integration for nonparametric causal inference

We consider the problem of inferring the total causal effect of a single variable intervention on a (response) variable of interest. We propose a certain marginal integration regression technique for a very general class of potentially nonlinear structural equation models (SEMs) with known structure, or at least known superset of adjustment variables: we call the procedure S-mint regression. We easily derive that it achieves the convergence rate as for nonparametric regression: for example, single variable intervention effects can be estimated with convergence rate $n^{-2/5}$ assuming smoothness with twice differentiable functions. Our result can also be seen as a major robustness property with respect to model misspecification which goes much beyond the notion of double robustness. Furthermore, when the structure of the SEM is not known, we can estimate (the equivalence class of) the directed acyclic graph corresponding to the SEM, and then proceed by using S-mint based on these estimates. We empirically compare the S-mint regression method with more classical approaches and argue that the former is indeed more robust, more reliable and substantially simpler.Comment: 40 pages, 14 figure

Isolasi Dan Karakterisasi Komponen Minyak Mint Dari Daun Mentha Arvensis Linn. Hasil Distilasi Air

Tanaman Mentha termasuk dalam keluarga Labiatae, yang banyak dimanfaatkan minyak atsirinya berdasarkan penggunaan dalam berbagai bidang industri, kandungan bahan aktif dan aroma. Pada penelitian ini bertujuan untuk mengisolasi minyak mint dari daun Mentha arvensis segar yang berasal dari Pujon, Batu, Indonesia dengan metode distilasi air, mengkarakterisasi sifat fisik dan menganalisa komponen penyusun minyak mint. Isolasi minyak mint dengan metode distilasi air dari daun M. arvensis diperoleh minyak mint dengan rendemen sebesar 0,09 %, berwarna kuning, berbau menyengat, beraroma khas daun mint, indeks bias 1,468 (25 0C) dan berat jenis 0,899 (25 0C). Hasil analisis minyak mint dengan KG-SM menunjukkan adanya 28 senyawa penyusun minyak mint dengan 5 komponen utama penyusunnya adalah karvon (40,58 %), limonena (19,55 %), β-mirsena (4,10 %), tran-karveol (3,39 %) dan dihidrokarvon (3,01 %). Komponen penyusun minyak mint pada penelitian ini berbeda dengan komponen minyak mint yang berasal dari Patiala, India

Isolasi dan Karakterisasi terhadap Minyak Mint dari Daun Mint Segar Hasil Distilasi Uap

Minyak mint dapat digunakan sebagai bahan baku industri makanan, minuman, dan farmasi. Penelitian ini bertujuan untuk mengisolasi minyak mint dari daun mint (Mentha arvensis Linn) segar dilakukan dengan metode distilasi uap selama 1 jam, mengkarakterisasi sifat fisik, dan menganalisis komponen penyusun minyak mint menggunakan Kromatografi Gas-Spektroskopi Massa (KG-SM). Minyak mint yang dihasilkan berwarna kuning muda dengan rendemen 0,03 %, indeks bias 1,4701 (25 oC), dan massa jenis 1,1363 g/mL (25 oC). Hasil analisis komponen penyusun minyak mint menggunakan KG-SM menunjukkan bahwa terdapat 37 komponen, dan terdapat 3 komponen utama dalam minyak mint yaitu karvon (30,89 %), piperitenon oksida (14,58 %), dan bornilen (12,75 %)