images of plants, in nature or specimens, of family Plantaginaceae (sometimes called Veronicaceae). This family was recently separated from Scrophulariaceae (sensu lato), and taxonomy of these families remains unstable. Scoparia is an important medicinal plant.
images of plants, in nature or specimens, of family Phyllanthaceae. Phyllanthus spp. and Flueggea occur wild in Central Mali. This family was formerly included in Euphorbiaceae.
images of plants, in nature or specimens, of family Orobanchaceae. The local species is Striga hermonthica, a root parasite of millet and other crop plants. The family (like Plantaginaceae) was recently separated from Scrophulariaceae, but family-level taxonomy remains controversial.
images of plants, in nature or specimens, of family Onagraceae. The local genus is Ludwigia. L. hyssopifolia and L. erecta are the two species known in Central Mali away from the main rivers (where other spp. are also found).
images of plants, in nature or specimens, of family Nymphaeaceae (true water lilies, compare Menyanthaceae). Nymphaea lotus is the largest species and has distinctive dentate leaf margins. N. maculata and N. micrantha are smaller; N. maculata has roughly circular leaves, while N. micrantha has more oval-shaped leaves and usually a tuft of hairs on top of the leaf next to the stem axis.
images of plants, in nature or specimens, of family Nyctaginaceae. The genus Boerhavia has been revised since our collecting began and it is best to consider all of these images to be "Boerhavia sp.", though mostly B. coccinea.
images of plants, in nature or specimens, of family Myrtaceae. Syzygium is the local native species and is featured here. Syzygium is rare in Central Mali but was found on the summit of Gandamiya mountain near Douentza. It is common farther south. The family also includes guava, clove, and eucalyptus.
images of plants, in nature or specimens, of family Moringaceae. The local species is Moringa oleracea, planted here and there in villages chiefly for the foliage which is made into a sauce.
images of plants, in nature or specimens, of the family Molluginaceae. The common species in Central Mali are Mollugo nudicaulis (from which a spontaneous "soap" can be made) and Glinus lotoides. See also Aizoaceae (Trianthema, Zaleya), Gisekiaceae (Gisekia), and Limeaceae (Limeus). These families have been combined in various ways in previous classifications.
images of plants, in nature or specimens, of the family Meliaceae. Azadirachta (neem tree) is nonnative but is planted everywhere in Malian villages and cities. Khaya ("caïlcédrat") was formerly the boulevard tree of preference in cities in the colonial period; it is native to West Africa but occurs in the wild mainly farther south.
images of plants, in nature or specimens, of family Malvaceae, genera I to Z. Malvaceae (sensu lato) now includes former Bombacaceae (Adansonia, Ceiba, Bombax), Tiliaceae (Grewia, Corchorus, Triumfetta), and Sterculiaceae (Cola, Sterculia, Waltheria).
images of plants, in nature or specimens, of family Malvaceae, genus Hibiscus. H. sabdariffa (roselle) is cultivated. H. esculentus (okra) is not widely cultivated in this zone. Of native species, H. micranthus can be confused with H. pseudohirtus.
images of plants, in nature or specimens, of family Malvaceae, genera A to G. Malvaceae (sensu lato) now includes former Bombacaceae (Adansonia, Ceiba, Bombax), Tiliaceae (Grewia, Corchorus, Triumfetta), and Sterculiaceae (Cola, Sterculia, Waltheria).
images of plants, in nature or specimens, of family Malphighiaceae. The family is represented in rocky areas of Central Mali by Acridocarpus monodii, which is endemic to Mali and has become rare (and threatened).
images of plants, in nature and specimens, of family Lythraceae. Lawsonia is the henna bush, planted in towns. Henna is a dark pigment used in body decorations, especially hands and feet.
images of plants, in nature or specimens, of family Loranthaceae (mistletoe). Englerina has yellow flowers. Tapinanthus spp. have red flowers and are difficult to distinguish from each other. Tapinanthus bangwensis is the common species in Central Mali.
images of plants, in nature or specimens, of family Limeaceae. This family has recently been separated from Molluginaceae. Only Limeum pterocarpum is widespread in Central Mali.
images of plants, in nature or specimens, of family Lauraceae. Cassytha is a native plant. Laurus nobilis (a kind of bay leaf) is an imported dried leaf used as a spice especially in Songhay cuisine.
images of plants, in nature or specimens, of family Lami.aceae (synonym Labiatae). Leucas and Leonotis genera overlap and may be merged. Gmelina and Vitex have been transferreed to Lamiaceae from Verbenaceae but are still listed as Verbenaceae in some websites.
images of plants, in nature or specimens, of family Hydrocharitaceae. Included is genus Najas, which is sometimes elevated to family status (Najadaceae). Najas spp. are difficult for a nonspecialist to distinguish from each other and from Lagarosiphon. Ottelia is easily recognized.
images of plants, in nature or specimens, of plants of the family Hernandiaceae. Genus Gyrocarpus, the only one present in the zone, is sometimes placed in its own family Gyrocarpaceae.
images of plants, in nature or specimens, of family Fabaceae, subfamily Faboideae, genera T to Z. Vigna unguiculata is cultivated cowpea (the local "beans"). Vigna subterranea (ex Vouandzeia) is cultivated groundnut (resembles peanut but harder).
images of plants, in nature or specimens, of family Fabaceae (legumes), subfamily Caesalpinioideae, excluding mimosoids (e.g. acacias). The genus Cassia has been divided into Cassia (sensu stricto), Chamaecrista, and Senna.
images of plants, in nature or specimens, of family Fabaceae (legumes), subfamily Caesalpinioideae, mimosoid clade, former Acacia spp. (sensu lato). The acacias were split in 2011 into several genera: African acacias were assigned to Faidherbia, Senegalia, and Vachellia. Acacia (sensu stricto) was delimited to Australia (due to strong-arming from the Australian timber industry), even though the type species was Acacia (now Vachellia) nilotica. Acacia ehrenbergiana was renamed Vachellia flava, in other cases the species epithet did not change when the genus changed. Many botanists continue to use Acacia for the entire complex, others recognize Faidherbia but retain Acacia for Senegalia and Vachellia. By strict botanical rules, Acacia should be limited to "Vachellia".
images of plants, in nature or specimens, of family Euphorbiaceae. Euphorbia sudanica may include the very similar Euphorbia paganorum. Manihot is cultivated cassava. Euphorbia balsamifera is planted along roads. The two Jatropha's (of American origin) and Ricinus are planted in villages. See also Phyllanthaceae, which were moved out of Euphorbiaceae.
Documentary videos of pottery making, notably a four-part documentary of one potter's work. Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos of pressing oil from seeds of native plants. Credits are at the end of videos. Additional documentaries from Mali may be added later.
images of flora from nature or of specimens, family Cyperaceae. Only a few of the many sedge spp. are of interest to people in central Mali: Cyperus articulatus (aromatic tubers), Cyperus esculentus (commercialized edible tubers, "pois sucrés"), Cyperus maculatus (rootstocks burned as incense), Cyperus rotundus (edible tubers, not very good and not commercialized).
images of flora from nature or of specimens, family Cucurbitaceae . There are some difficulties involving determinations of wild melons with protrusions (horns), Cucumis pustulatus/metuliferus/prophetarum. Cultivated spp. are Lagenaria (gourd, calabash), Citrullus lanatus (watermelon), and Cucurbita (squash/pumpkin).
images of flora from nature or of specimens, family Cleomaceae. This family was previously part of Capparaceae, and is now sometimes included in Brassicaceae.
images of flora from nature or of specimens, family Burseraceae. Commiphora africana produces a gum (bdellium) known as albarkante in Mali and widely burned as incense.
images of flora from nature or of specimens, family Brassicaceae (formerly Cruciferae). Most of the native plants of this family are Saharan, if Cleomaceae is treated as a separate family as in this collection.
images of plants in nature or specimens, family Annonaceae. Annona reticulata and A. squamosa are planted in courtyards for their fruits (sweetsop). Xylopia is an imported spice ("grains of Selim").
images of plants in nature or specimens, family Anacardiaceae. Includes Anacardium (cashew) and Mangifera (mango). Genus Ozoroa was included in Heeria in the past.
images of plants in nature or specimens, family Amaranthaceae. The ex-Chenopodiaceae are listed as Amaranthaceae_Chenopodioideae. Our specimens of the cultivated amaranth (a sauce vegetable) are listed as Amaranthus_cf._dubius/hybridus.
images of nonflowering plants. file names begin with fl (for "flora") plus "fern", "fungi", or "lichen". The lichen Pseudevernia is imported dry as a spice especially in Timbuktu.
Documentary videos of blacksmiths and carpenters (see also the work "construction and boatbuilding"). Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos of food and beverage production by Bozo and Dogon people. Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos showing fishing techniques chiefly of Bozo people (plus some Dogon). Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos of farming and of foraging for useful native plants. Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentation of Dogon fox-track divination, a Dogon memorial altar, and a Bozo boat race. Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos of construction of a granary and building a large skiff (boat). Credits are at the end of videos. Additional documentaries from Mali may be added later.
Videos featuring native plants of Burkina Faso. Credits are at the end of videos. Additional documentaries from Burkina may be added later. Images of native plants will be in a distinct collection.
Occasional videos involving native insects of SW Burkina Faso. Credits are at the end of videos. Additional documentaries from Burkina may be added later. See also the "bees ..." work in this collection.
Documentary videos of metalwork (blacksmiths) and woodwork from Burkina Faso. Credits are at the end of videos. Additional documentaries from Burkina may be added later.
documentary video of small-scale artisanal gold digging in SW Burkina Faso. Credits are at the end of videos. Additional documentaries from Burkina may be added later.
Documentary videos showing food and beverage preparation in SW Burkina Faso. Credits at end of videos. Additional documentaries from Burkina may be added later.
Five-part documentary on making apiaries and collecting honey. Vigué ethnicity, Viemo language. location: near Karangasso-Vigué, southwestern Burkina Faso. credits at end of videos. Other documentaries from Burkina may be added later.
This is data from Wallace, Benyamini et al., 2023, Journal of Neural Engineering. There are two sets of data included:
1. Neural features and error labels used to train error classifiers for each day used in the study
2. Trial data from an example experiment day (Monkey N, Day 6), with runs for offline calibration, online brain control, error monitoring, and error correction.
The purpose of this study was to investigate the use of error signals in motor cortex to improve brain-machine interface (BMI) performance for control of two finger groups. All data is contained in .mat files, which can be opened using MATLAB or the Python SciPy library.
Wallace, D. M., Benyamini, M., Nason-Tomaszewski, S. R., Costello, J. T., Cubillos, L. H., Mender, M. J., Temmar, H., Willsey, M. S., Patil, P. G., Chestek, C. A., & Zacksenhouse, M. (2023). Error detection and correction in intracortical brain–machine interfaces controlling two finger groups. Journal of Neural Engineering, 20(4), 046037. https://doi.org/10.1088/1741-2552/acef95
This dataset was generated for our work: "Tunable Assembly of Host–Guest Colloidal Crystals". The data set contains data for 5 different binary systems of star particles and convex guests, and one system of only star particles. All simulation were formed at constant pressure. The data set contains GSD files for each of the simulations used in this work along with the corresponding python code used to produce the simulations.
We also include the python code and jupyter notebook to produce the free volume calculations used in this work. and How to use this Data:
Simulation Data:
We include GSD files that can be uploaded into a visualization or analysis software such as Ovito or Freud for independent analysis.
Simulation python scripts (workspaces_for_HPMC_simulations.zip):
We include the python scripts used in this work for simulating host guest systems at constant pressure.
Free Volume Data (Free_volume_calculations_and_analysis.zip):
You can run the jupyter notebook included here to reproduce the free volume analysis for this work.
We also include the python scripts for the free volume calculation python scripts that get the data for these free volume calculations.
The procedure followed while creating this data is summarized in Section II of Chen, Brian, et al. "Behavioral cloning in atari games using a combined variational autoencoder and predictor model." 2021 IEEE Congress on Evolutionary Computation (CEC). IEEE, 2021. This data is not a result of a research but an intermediate product that is used in research.
This dataset is generated to train a behavioral cloning framework from gameplay screen captures and keystrokes of an "expert" player. The RL agent that is trained using "RL Baselines Zoo package" acts as the "expert" player, whose decision making process we desire to learn. In addition to behavioral cloning experiments, this dataset is further used to demonstrate the efficacy of a novel incremental tensor decomposition algorithm on image-based data streams.
Chen, Brian, et al. "Behavioral cloning in atari games using a combined variational autoencoder and predictor model." 2021 IEEE Congress on Evolutionary Computation (CEC). IEEE, 2021., Aksoy, Doruk, et al. "An Incremental Tensor Train Decomposition Algorithm." arXiv preprint arXiv:2211.12487 (2022)., and Chen, Brian, et al. "Low-Rank Tensor-Network Encodings for Video-to-Action Behavioral Cloning", forthcoming
Reconstructed CT slices for tooth in bone fragment of Colognathus obscurus (University of Michigan Museum of Paleontology catalog number UMMP 7506) as a series of TIFF images. Raw projections are not included in this dataset. The reconstructed slice data from the scan are offered here as a series of unsigned 16-bit integer TIFF images. The upper left corner of the first image (*_0000.tif) is the XYZ origin.
This is part of the simulation set of geomagnetic storms from 2010 to 2019. The Space Weather Modeling Framework (SWMF) with the configuration of SWPC v2 was used. The output files can be read by the visualization scripts included in the SWMF or the SpacePy Python package.
Amyloid nanofibers are abundant in microorganisms and are integral components of many biofilms, serving various purposes, from virulent to structural. Nonetheless, the precise characterization of bacterial amyloid nanofibers has been elusive, with incomplete and contradicting results. The present work focuses on the molecular details and characteristics of PSMa1-derived functional amyloids present in Staphylococcus aureus biofilms, using a combination of computational and experimental techniques, to develop a model that can aid the design of compounds to control amyloid formation. Results from molecular dynamics simulations, guided and supported by spectroscopy and microscopy, show that PSMa1 amyloid nanofibers present a helical structure formed by two protofilaments, have an average diameter of about 12 nm, and adopt a left-handed helicity with a periodicity of approximately 72 nm. The chirality of the self-assembled nanofibers, an intrinsic geometric property of its constituent peptides, is central to determining the fibers' lateral growth.
Paolo Elvati, Chloe Luyet, Yichun Wang, Changjiang Liu, J. Scott VanEpps, Nicholas A. Kotov, and Angela Violi ACS Applied Nano Materials 2023 6 (8), 6594-6604 DOI: 10.1021/acsanm.3c00174
A growing body of work has linked key biological activities to the mechanical properties of cellular membranes, and as a means of identification. Here, we present a computational approach to simulate and compare the vibrational spectra in the low-THz region for mammalian and bacterial membranes, investigating the effect of membrane asymmetry and composition, as well as the conserved frequencies of a specific cell. We find that asymmetry does not impact the vibrational spectra, and the impact of sterols depends on the mobility of the components of the membrane. We demonstrate that vibrational spectra can be used to distinguish between membranes and, therefore, could be used in identification of different organisms. The method presented, here, can be immediately extended to other biological structures (e.g., amyloid fibers, polysaccharides, and protein-ligand structures) in order to fingerprint and understand vibrations of numerous biologically-relevant nanoscale structures.
This is the model and observational data referenced in our manuscript entitled “surface and sub-subsurface internal gravity wave kinetic energy spectra from global ocean models and observations.” The model data for the 7 regions from the two global simulations (HYCOM and MITgcm) can be found here.
Specimen RTMNU/DG/VERT/1/55P/2020 is a partial dentary of a small noasaurid dinosaur collected from Late Cretaceous sediments near the village of Pisdura, Maharashtra, India. The specimen was collected under the auspices of a Joint Collaborative Programme through a Memorandum of Understanding involving the Geological Survey of India (Government of India, Ministry of Mines) and the University of Michigan Museum of Palaeontology. The specimen is housed in the Department of Geology of Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur (Maharashtra) India. For access please contact Dhananjay Mohabey ( dinomohabey@yahoo.com) or Bandana Samant ( bandanabhu@gmail.com).
Mohabey, D. M., B. Samant, K. Vélez-Rosado, and J. A. Wilson Mantilla. (in press.) A review of small-bodied theropod dinosaurs from the Late Cretaceous of India, with description of new cranial remains of a noasaurid (Theropoda: Abelisauria). Journal of Vertebrate Paleontology. DOI:10.1080/02724634.2023.2288088