bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estudio de la percepción de estudiantes de nivel secundario sobre la química y su implicancia social
Authors: Suárez Alejandra Graciela , Calviño Néstor Gabriel , Drogo Claudia Fátima , Bottai Hebe María , Reinoso Amelia Rosa 
Published: June 2019

<p>Las preocupaciones internacionales respecto de la promoción de la vocación científica y el uso responsable del conocimiento científico nos involucra en la búsqueda de nuevas formas de enseñanza de la química que supere la enseñanza meramente propedéutica y se oriente a la formación para un ejercicio responsable de la ciudadanía en lo que respecta a ciencia y tecnología. En el presente trabajo se presentan los resultados de un estudio realizadosobre la percepción que estudiantes de Nivel Secundario tienen sobre la química, sus implicancias e importancia en la vida cotidiana. Para ello se diseñó un cuestionario estructurado en 4 secciones que fue respondido por 795 estudiantes. El análisis de los resultados muestra que los estudiantes asocian la química con expresiones y términos referidos a su dimensión estrictamente disciplinar, reconociendo su impacto en la sociedad como muy positivo. Asimismo, se observó una clara tendencia a vincular la química con algunos elementos del contexto inmediato de los estudiantes lo que posibilitaría la implementación de nuevas metodologías de enseñanza que recupera elementos del contexto para el desarrollo de saberes vinculados con la disciplina desde una perspectiva centrada en la responsabilidad y el desarrollo sostenible.</p>
El trabajo sociocultural comunitario: misión de la educación superior
Authors: Martínez-Rodríguez Dianelkys 
Published: June 2019

Elevar los niveles de impacto de la educación superior en el orden social constituye una prioridad del nuevo milenio, para el cumplimiento de los Objetivos de Desarrollo Sostenible. Cada día se hace más necesaria la sinergia entre los procesos de formación, investigación y extensión universitaria, para la transformación de realidades socioculturales insostenibles. Este artículo tiene dentro de sus propósitos, analizar los aportes teórico-metodológicos que sustentan la misión educativa de la educación superior para el desarrollo sostenible. En la fase exploratoria, la revisión de la literatura se realizó a partir de las categorías Vínculo universidad-sociedad y Vínculo universidad-comunidad. Posteriormente se utilizaron los criterios de la Teoría fundamentada para profundizar en los principales hallazgos teóricos. En los análisis se defiende el término trabajo sociocultural comunitario y se presentan cuatro principios que permitan reflexionar sobre el salto cualitativo que requieren las prácticas educativas a este nivel para 2030.
Measles, Mickey, and the Media: Anti-Vaxxers and Health Risk Narratives during the 2015 Disneyland Outbreak
Authors: Greenberg Josh , Capurro Gabriela , Dubé Eve , Driedger S. Michelle 
Published: June 2019

Background Outbreaks of disease are common fodder for political debate and public discourse. In the past decade alone, health officials have faced a steady stream of serious public health threats, from H1N1 to Ebola and Zika, as well as large outbreaks of measles and other highly contagious illnesses. These incidents command intense media attention and focus public conversation around questions of risk and responsibility. Analysis This article examines major frames in Canadian news coverage of the Disneyland measles outbreak in 2015 to show how public health events are translated into social problems that magnify moral and political concerns. It discusses how parents who reject or express worries about vaccination were portrayed, and traces which solutions were presented to address the problem of vaccine preventable illness. Conclusion and implications Media coverage focused heavily on “anti-vaxxers” as central characters in the outbreak story. The coverage conformed largely to an established biomedical narrative, in which medical and health experts set the definitional parameters around the outbreak causes and consequences, and the preventive measures that should be taken to prevent future occurrences.
O saber surge da prática - por um Serviço Social com perspectiva feminista
Authors: Lisboa Teresa Kleba , De Oliveira Catarina Nascimento 
Published: June 2019

O presente artigo propõe uma interlocução entre o Serviço Social e os Estudos Feministas no processo de construção do conhecimento introduzindo a categoria interseccionalidade para legitimar a multiplicidade de diferenças com as quais nos deparamos no cotidiano de nossas práticas. Amparadas na Epistemologia Feminista, questionamos o reducionismo do Serviço Social brasileiro a uma única corrente teórica, o marxismo, que submete toda a complexidade da vida humana a esfera da produção. O texto busca desvendar as fissuras que avançam no campo do conhecimento, no sentido de contribuir com propostas teóricas que atravessam fronteiras interseccionais, transversais, interdisciplinares entre as categorias gênero, raça, etnia, sexualidade, classe, geração entre outras. O percurso argumentativo acompanhará uma sequência de reflexões realizadas ao longo de anos de experiência, tanto na prática acadêmica, como nos trabalhos de campo realizados através de Projetos de Pesquisa e Extensão.
İran Dış Politikasında Lider’in Etkisi: İran Nükleer Krizi
Authors: AKSU Fuat , VURAL JANE Hazar 
Published: June 2019

Modern İran tarihinde önemli bir dönüm noktası
olan 1979 Devrimi, Şah M. Rıza Pehlevi Dönemi’nde uygulanan merkeziyetçi katı
politikaların sonucu olarak kabul edilmektedir. Söz konusu dönemdeki reformlar
halkın çeşitli kesimlerinde rahatsızlığa sebep olmuştur. Çoğulcu anti-monarşik
halk hareketi olarak başlayan süreç daha sonra İslam Devrimi’ne evrilmiştir.
İslam Devrimi monarşiyi yıkmış fakat dini liderin merkezde olduğu teokratik bir
rejimi beraberinde getirmiştir. İran
İslam Cumhuriyeti ilan edildikten sonra Ayetullah Humeyni, Ulemanın karar alma
mekanizmalarında yer aldığı yeni anayasayı hayata geçirmiştir.

Bu bağlamda, çalışmamızda öncelikle Devrim’e
giden süreçte yaşanan önemli gelişmeler ele alınacaktır. İkinci bölümde,
Velayeti Fakih kavramı, İran İslam Cumhuriyeti’ndeki kurumlar, karar alma
mekanizmaları ve Lider’in sistemdeki yeri anlatılacaktır. Son kısımda ise
nükleer krizin tarihsel seyri ve nükleer politikaların değişimi üzerinden dört
Cumhurbaşkanı ile çalışmış, asıl karar birimi olan Lider Ali Hamenei’nin etkisi
ortaya konulacaktır. Ayetullah Hamenei nükleer kriz süresince farklı siyasal
eğilimleri olan Cumhurbaşkanları ile çalışsa da, İran için genel siyasi karar
çerçevesini çizerken en pragmatist olanı tercih etmekte ve dönemin getirdiği iç
ve dış baskılar sonucunda karar almaktadır. Bu noktada, Liderlik özellikleri
açısından Hamenei için devrimin bireyi olduğu göz ardı edilmeden, hem uhrevi
hem de dünyevi alanla da yakından ilgili bir karar birimi olduğu
savunulacaktır.
Clinical and organizational management of cardiac implantable electronic device replacements: an Italian Survey promoted by AIAC (Italian Association of Arrhythmology and Cardiac Pacing)
Authors: Palmisano Pietro , Ziacchi Matteo , Belotti Giuseppina , Rapacciuolo Antonio , Santini Luca , Stabile Giuseppe , Zoni Berisso Massimo , De Ponti Roberto , Landolina Maurizio , Ricci Renato Pietro , Boriani Giuseppe 
Published: June 2019

Aims
The aim of this survey was to assess the management and organization of cardiac implantable electronic device (CIED) replacement in Italy.

Methods
A questionnaire consisting of 24 questions on organizational aspects and on the peri-procedural management of anticoagulant therapies and antibiotic prophylaxis was sent via the Internet to 154 Italian arrhythmia centers.

Results
A total of 103 out of 154 centers completed the questionnaire (67% response rate). In 43% of the centers, the procedures were performed under day-case admission, in 40% under ordinary admission, and in 17% under either day-case or ordinary admission. The most frequent reason (66%) for choosing ordinary admission rather than day-case admission was to obtain full reimbursement. Although warfarin therapy was continued in 73% of the centers, nonvitamin K oral anticoagulants were discontinued, without bridging, 24 h or less prior to replacement procedures in 88%. Prophylactic antibiotic therapy was systematically administered in all centers; in 97%, the first antibiotic dose was administered 1–2 h prior to procedures. Local antibacterial envelopes were also used in 43% of the centers in patients with a higher risk of device infection.

Conclusion
This survey provides a representative picture of how CIED replacements are organized and managed in current Italian clinical practice. The choice of the type of hospitalization (short versus ordinary) was more often motivated by economic reasons (reimbursement of the procedure) than by clinical and organizational factors. Peri-procedural management of anticoagulation and prophylactic antibiotic therapy was consistent with current scientific evidence.
Boltzmann and the Statistical Multifractals
Authors: Río-Correa J.L. Del , J. López-García , G. Durán-Meza 
Published: June 2019

Abstract
We extend the Boltzmann’s ideas that describe the evolution to the equilibrium of many body systems to the multifractal decomposition of the unitary interval 𝕀, in terms of sets Jα
conformed by points with the same pointwise dimension, and obtain the D(α) singularity spectrum.
Corrosion resistance of AZ31 magnesium alloy treated by plasma electrolytic oxidation
Authors: Kajánek D. , Hadzima B. , Tkacz J. , Pastorková J. , Jacková M. , Wasserbauer J. 
Published: June 2019

Abstract
The coating prepared by plasma electrolytic oxidation (PEO) was created on AZ31 magnesium alloy surface with the aim to evaluate its effect on corrosion resistance. The DC current was applied on the sample in solution consisted of 10 g/l Na3PO4·12H2O and 1 g/l KOH. Additional samples were prepared with 2 and 4 minutes of preparation to observe evolution of the PEO coating. Morphology of the coatings was evaluated by scanning electron microscopy and chemical composition was examined by EDX analysis. Electrochemical characteristic were measured by potentiodynamic polarization tests and electrochemical impedance spectroscopy in 0.1 M NaCl at the laboratory temperature. Obtained data were presented in form of potentiodynamic curves and Nyquist diagrams. Results of analysis showed that plasma electrolytic oxidation coating positively influence corrosion resistance of AZ31 magnesium alloy in chosen corrosive environment.
Effect of heat treatment on microstructure, microhardness and corrosion resistance of ZE41 Mg alloy
Authors: Syam Prasad U. , Kondaiah V. V. , Akhil K. , Kumar V. Vijay , Nagamani B. , Jhansi K. , Dumpala Ravikumar , Venkateswarlu B. , Ratna Sunil B. 
Published: June 2019

Abstract
Magnesium and its alloys are now attracting a great attention as promising materials for several light weight engineering applications. ZE41 is a new Mg alloy contains Zinc, Zirconium and Rare Earth elements as the important alloying elements and is widely used in aerospace applications. In the present study, heat treatment has been carried out at two different temperatures (300 and 335 °C) to assess the effect of heat treatment on microstructure and corrosion behavior of ZE41 Mg alloy. The grain size was observed as almost similar for the unprocessed and heat treated samples. Decreased amount of secondary phase (MgZn2) was observed after heat treating at 300 °C and increased intermetallic phase (Mg7Zn3) and higher number of twins appeared for the samples heat treated at 335 °C. Microhardness measurements showed increased hardness after heat treating at 300 °C and decreased hardness after heat treating at 335 °C which can be attributed to the presence of higher supersaturated grains after heat treating at 300 °C. The samples heat treated at 335 °C exhibited better corrosion resistance compared to those of base materials and samples heat treated at 300 °C. From the results, it can be understood that the selection of heat treatment temperature is crucial that depends on the requirement i.e. to improve the microhardness or at the loss of microhardness to improve the corrosion resistance of ZE41 Mg alloy.
Properties of coatings created by HVOF technology using micro-and nano-sized powder
Authors: Guzanová A. , Brezinová J. , Draganovská D. , Maruschak P.O. 
Published: June 2019

Abstract
The paper focuses on assessment the resistance of hot-sprayed coatings applied by HVOF technology (WC–Co–Cr created using powder of two different grain sizes) against erosive wear by dry-pot wear test in a pin mill at two sample angles. As these coatings are designated for the environment with varying elevated temperatures and often are in contact with the abrasive, the coatings have been subjected to thermal cyclic loading and their erosive resistance has been determined in as-sprayed condition and after the 5th and 10th thermal cycles. The corrosion resistance of coatings was evaluated by linear polarization (Tafel analysis).
Gebelikte DistresinTanımlanması:Erzincan Örneği
Authors: YILDIZ ÇİLTAŞ Nadire , KÖSE TUNCER Sevinç 
Published: June 2019

Gebelikte
Distresin Tanımlanması: Erzincan Örneği* Nadire Yıldız Çiltaş ¹ Sevinç Köse Tuncer² ÖZETAmaç: Araştırma,
gebelik döneminde göz ardı edilebilecek olan distres sorununu belirlemek amacıyla
tanımlayıcı olarak yapılmıştır.Materyal ve Metot: Çalışma Erzincan’da
araştırma hastanesinin doğum ve kadın hastalıkları polikliniğine başvuran 12 gebelik
haftası ve üzerinde olan 600 gebe
tarafından yürütülmüştür.Çalışma verileri yüz yüze görüşülerek ‘Gebe Bilgi
Formu’ ve ‘Tilburg Gebelikte Distres Ölçeği’ (Tilburg Pregnancy DistressScale
-TPDS) kullanılarak elde edilmiştir. Verilerin değerlendirilmesinde sayı,
yüzdelik, ortalama, Kruskall Wallis Varyans analizi, tek yönlü varyans analizi
(ANOVA), bağımsız gruplarda t testi, Pearson korelasyon analizi ve Mann-Whitney
U testi kullanılmıştır.Bulgular:Araştırmaya
katılan gebelerin yaş ortalaması 27.42±5.36 olup %34.3’ünün 17-24 yaş grubunda
olduğu saptanmıştır. Gebelerin %33’nün (n=198) distres yaşadığı tespit
edilmiştir.Gebelerin yaş grubu, eğitim
düzeyi, çalışma durumu, eş eğitim düzeyi, gebelik sayısı, düşük/küretaj sayısı,
canlı doğum sayısı, aile için planlanan çocuk sayısı, önceki doğumlarında ve
doğum sonu dönemde yaşanan sağlık problemi, ile TGDÖ puan ortalamaları arasında
istatistiksel olarak anlamlılık saptanmıştır (p&lt;0.001, p&lt;0.01,
p&lt;0.05).Sonuç:
Gebelerde distresin önemli düzeyde olduğu ve çeşitli faktörlerden etkilendiği
saptanmıştır. Gebelik döneminde kadınların sadece fizyolojik yönden değil
psikolojik yönden de değerlendirilmesi hem anne hem de fetüs/bebek sağlığının korunmasında
önemli yer tutmaktadır..Anahtar kelimeler:Stres,
Anksiyete, Gebe.¹.Erzincan Mengücek Gazi Eğitim Araştırma Hastanesi Uzman Hemşire² Erzincan Binali YILDIRIM Üniversitesi, SBF, Hemşirelik Bölümü, Dr.Öğr.Üyesiİletişim:Nadire YILDIZ
ÇİLTAŞ- Uzman Hemşire. Erzincan Mengücek Gazi Eğitim Araştırma Hastanesi Eğitim
Hemşiresi-Başbağlar Mahallesi Hacı Ali Akın Caddesi No:32 Erzincan / Merkez. nadireclts@outlook.com

*Bu çalışma 15.Ulusal Hemşirelik Kongresi’nde (10-12
Eylül Erzurum,Türkiye) poster bildiri
olarak sunulmuştur
EVALUASI NILAI CUTTING CARRYING INDEX PADA LUMPUR DIESEL OIL
Authors: Yuwandhika Kevin Ariko , Satiyawira Bayu , Rizki Apriyandi 
Published: June 2019

Evaluation of Cutting Carrying Index when using Diesel Oil base mud in well T is carried out on section 12-1 / 4 ", 8-1 / 2", and 5-3/4 ". This is because the use of mud on the previous section did not use Diesel Oil base mud, but only used native mud and KCL Polymer base mud. In the CCI evaluation of the Diesel Oil mud, several parameters included, Equivalent Circulating Density and rheology of diesel oil base mud. Based on the primary data on well T the ECD calculation can be done by calculating the average annulus velocity, velocity critical around annulus hole, and the pressure loss in it. The value of ECD obtained on section 12-1 / 4 "ranges from 14 ppg to 15 ppg, section 8-1/2” has 16,08 ppg to 16,4 ppg, and section 5-3 / 4" reaching 14,72 ppg as the biggest value. Based on the ECD, CCI value is obtained, this is because the ECD value describes the mud weight around the annulus hole. A good CCI value must be greater than or equal to 1, then evaluated with the results of CCI on route 12-1 / 4 "obtaining the greatest CCI value 1.6 in the jar and drill collar I. On route 8-1 / 2", CCI value evaluated in the heavyweight drill pipe section with a change in the value of 0,76 to 1,08. The CCI value on section 5-3 / 4“ changes in value from 0,65 to 1,19 in heavyweight drill pipe section.
PENGARUH TEMPERATUR TERHADAP SIFAT FISIK SISTEM LOW SOLID MUD DENGAN PENAMBAHAN ADITIF BIOPOLIMER DAN BENTONITE EXTENDER
Authors: Satiyawira Bayu 
Published: June 2019

Lumpur pemboran merupakan bagian yang sangat penting di dalam suatu kegiatan pemboran. Pemboran dapat berjalan dengan lancar, aman, dan ekonomis sangat dipengaruhi oleh kondisi dan sistem lumpur pemboran yang digunakan. Kondisi yang dimaksud adalah sistem lumpur dan sifat fisik lumpur tersebut sesuai dengan spesifikasi yang dibutuhkan dan mengetahui pengaruh berbagai temperatur terhadap sifat-sifat fisik low solid mud (low solid mud) dengan penambahan aditif biopolimer dan bentonite extender. Pengamatan hasil laboratorium menggunakan alat roller oven sebagai media untuk simulasi mengkondisikan lumpur seakan-akan berada di dalam sumur untuk melihat perubahan sifat fisik lumpur pada berbagai temperatur, hasil uji laboratorium menunjukkan dengan kenaikan temperature pengujian maka sifat fisik lumpur pemboran seperti densitas, viskositas, Plastic Viscosity, Yield Point, Dial Reading 600 RPM, Dial Reading 300 RPM, dan Gel Strength mengalami perubahan nilai pengukuran mengikuti perubahan temperatur
PENGARUH SCALE TERHADAP PRODUKTIVITAS PADA SUMUR BN-52, BN-104, DAN BN-110 DI LAPANGAN “X”
Authors: Pradipta Abhikama , Lestari Lestari , Samsol Samsol 
Published: June 2019

BN-52, BN-104, and BN-110 wells are located on the X field, PT. PERTAMINA FIELD RAMBA ASSET 1, South Sumatra. The three wells are oil-producing wells in field X. Using the Vogel equation, the IPR curve and maximum flow rate of each well are obtained, which are 152.14 BOPD, 57.2 BOPD, and 53.76 BOPD respectively. By using the exponential Decline Curve Analysis calculation method, it can be seen the rate of decline in production, as well as the time of well production to economic limit. The results of the Decline Curve Analysis show that the BN-52 well will still be in production until March 2022, and the BN-110 well can produce until March 2020. In the analysis with the Stiff & Davis Method, carbonate deposits are proven, with each Stability Index value +1.19, +1.60, and +1.35, whereas with the Skillman, Mcdonald & Stiff method there was no scale sulfate, with S values of each well at 57,272 meq / l, 54,416 meq / l, and 55,147 meq / l. The scale causes oil production to decrease, consequently the IPR curve shifts to the left. The decreasing production of the three wells is due to a scale that inhibits the flow rate. Maximum flow rate was obtained by using the Standing correlation in each well of 100.06 BOPD, 54.53 BOPD, and 28.72 BOPD. The decline in oil production caused by scales must be handled appropriately.
ANALISIS TINGKAT KEBISINGAN DI TERMINAL PAKUPATAN (KABUPATEN SERANG, PROVINSI BANTEN)
Authors: Ferial Linardita , Susanto Endro , DS Silalahi Mawar 
Published: June 2019

<p>Aktivitas di terminal berpotensi menimbulkan pencemaran lingkungan antara lain kebisingan. Penelitian dilakukan di Terminal Pakupatan, Kabupaten Serang, Provinsi Banten menggunakan 7 titik pengamatan, pada hari Senin (mewakili hari kerja), Jum’at (mewakili hari terakhir kerja), Sabtu (mewakili hari libur) dan Minggu (mewakili hari libur). Nilai Leq rata-rata di Terminal Pakupatan sebesar 77,82 dB(A) dan nilai Lsm sebesar 79,03 dB(A). Nilai ini dibandingkan dengan baku mutu menurut KepMen LH No.48/MENLH/11/1996 sesuai dengan peruntukannya, yakni peruntukkan perdagangan dan jasa sebesar 70 dBA. Selanjutnya dilakukan pemetaan tingkat kebisingan di kawasan terminal Pakupatan dengan bantuan software Surfer 11. Koefisien korelasi serta signifikan yang didapat menunjukkan hubungan antara jumlah kendaraan yang masuk dengan kebisingan yang berkorelasi kuat dengan koefisien korelasi R2=0,996 pada titik satu hari Senin yang menandakan adanya hubungan kuat antara tingkat kebisingan dengan jumlah kendaraan yang melintas. Upaya pengelolaan lingkungan untuk mengurangi kebisingan terutama pada daerah penelitian yang memiliki tingkat kebisingan yang melebihi baku mutu antara lain dengan menanam tanaman berkanopi tebal sebagai barrier rambatan bising di area pintu masuk sebelah utara dan selatan Terminal Pakupatan dan memanajemen lamanya kendaraan berhenti di terminal sehingga tingkat kebisingan di lingkungan sekitar terminal menjadi berkurang dan menciptakan suasana nyaman bagi penumpang. </p><p>Keywords: Noise. Leq, Lsm, Mapping, Terminal Pakupatan </p>
PENGARUH PENAMBAHAN GLYCINE MAX PADA PENYISIHAN NITROGEN DALAM CONSTRUCTED WETLAND TIPE SUBSURFACE HORIZONTAL FLOW
Authors: . Tazkiaturrizki 
Published: June 2019

<p>Constructed wetland merupakan salah satu alternatif pengolahan limbah yang tepat guna mencapai kualitas air yang diinginkan sehingga dapat dimanfaatkan secara berkelanjutan. Berdasarkan penelitian terdahulu, constructed wetland mampu mengolah efluen IPAL sehingga kualitas air yang dihasilkan lebih baik. Penggunaan Typha latifolia dapat menyisihkan COD dan BOD dengan efisiensi tertinggi dan dilengkapi dengan aerasi pada ketebalan media 40 cm dan waktu kontak 2 hari. Sedangkan untuk parameter ammonium, NTK, dan fosfat efisiensi penyisihannya lebih baik jika menggunakan Scirpus grossus dengan penambahan aerasi, ketebalan media 50 cm dan waktu kontak 2 hari. Penelitian lain, dengan mengkombinasikan tanaman leguminosa yaitu Glycine max (kedelai) diduga berpengaruh terhadap jumlah bakteri yang menjadi lebih banyak dan bersimbiosis mutualisme dengan akar kedelai sehingga dapat meningkatkan fiksasi nitrogen. Namun, untuk penyisihan nitrogen belum dapat disisihkan dengan baik. Pada penelitian ini, dilakukan modifikasi wetland yaitu dengan membagi pengolahan menjadi dua tahap yaitu tahap I penyisihan BOD/COD dengan menggunakan tanaman Typha latifolia dan tahap II penyisihan nitrogen dengan menggunakan tanaman Scirpus grossus yang selanjutnya dilakukan penambahan tanaman Glycine max dengan total waktu detensi selama 5 hari. Dengan modifikasi wetland ini terjadi peningkatan efisiensi penyisihan nitrogen mencapai 95%. </p><p>Keywords : Constructed wetland, removal, Nitrogen, continue feeding </p>
ENDOCARP ANALYSIS OF A TRADITIONAL VARIETY OF COLOMBIAN COFFEE
Authors: MUÑOZ MILTON , ROA MANUEL , CORREA RODRIGO 
Published: June 2019

<p> This article presents the main results of thermal analytical and drying tests applied to the endocarp of coffee bean samples, in order to analyze their influence on the coffee dehydration process. An infrared analysis, as well as TGA, DTGA and DSC tests, were applied to the parchment of a sample of Castilla variety coffee beans and later compared with similar tests performed on coffee beans of the same variety, upon parchment removal. For analytical tests, the main thermogravimetric transitions are reported up to a temperature of 1000 °C. From thermograms, four temperature range were identified for parchment, with their respective mass loss: 33-33.7°C, 9.48%; 33.7-251.2°C, 16.23%; 251.2-358°C, 47.48%; and 358-800°C, 15.52%. The greatest mass loss was due to cellulose and hemicellulose degradation. The study was complemented by drying experiments on samples of beans with and without parchment. The diffusion coefficients were found using Fick’s second law and metaheuristic optimization methods (global optimization). On average, the diffusion coefficient of grains without endocarp is 46% greater than that of beans dried with the parchment. Coffee beans with parchment took, on average, 50% more time to reaching moisture levels of 12% (on dry basis). The results are considered important for the projection and design of new coffee drying systems and their automatic control. </p>