#acta

• Astrophytum capricorne — A species of xerophytic plants within the Astrophytum genus (Cactaceae family), native to the semi-desert regions of Mexico (Chihuahuan Desert), characterized by a spherical stem that becomes cylindrical at maturity, divided into 7-8 sharp ribs. The species is distinguished by its long, flexible, flattened, and twisted spines reminiscent of a goat's horns (or a capricorn's), and by its large, yellow flowers with a deep purple or red center.
• Astrophytum myriostigma — A species of succulent cacti within the Astrophytum genus (Cactaceae family), native to the mountainous and arid regions of central and northern Mexico. The plant has a globose stem completely lacking spines, typically divided into 5 prominent ribs, giving it a three-dimensional star shape; its entire epidermis is densely covered by thousands of trichomes (microscopic white dots), giving it a characteristic silver-white hue, and its large flowers are pure yellow without a red center.
• Astrophytum ornatum — The largest and most vigorous cactus species within the Astrophytum genus (Cactaceae family), endemic to the canyons and limestone slopes of central Mexico (Querétaro and Hidalgo states). The plant has a spherical stem in youth that becomes columnar at maturity, capable of reaching over one meter in height; it features 8 subtly spiraled ribs, is armed with long, rigid, yellowish spines, and its epidermis is decorated with ornamental curved bands of white trichomes, bearing large yellow flowers.
• Self-agglomeration — A spontaneous phenomenon or process whereby fine particles of a material, metallic powders, or mineral grains gather and compact on their own under the action of intermolecular forces, humidity, self-pressure, or electrostatics, forming aggregates or compact blocks without the addition of an external artificial binder.
• To self-contradict — To autonomously retract, deny, or contradict a statement, declaration, or position previously expressed; to publicly or officially acknowledge that one's own words or actions were erroneous, inaccurate, or untruthful. In a journalistic or political context, it describes the act by which a leader or agency revises an official communiqué to cancel its validity.
• Self-retraction — The act of self-contradicting and its result; an official, voluntary, and autonomous retraction of a statement, declaration, or position previously expressed by the same person or institution. This structural act restores the factual or legal truth in the public space, canceling the validity of an erroneous communiqué issued in the past.
• Self-retracted — Having been retracted, denied, or contradicted by its own author or by the issuing institution; a statement, rumor, or official communiqué that was declared null or inaccurate autonomously by the one who initially launched it. In a structural sense, it defines the state of a public text whose validity has been withdrawn.
• Female autodidact — The feminine form of autodidact; a woman or girl who acquires knowledge, skills, or competencies in a cultural, scientific, or technical field through individual study and personal effort, without a teacher's guidance.
• Garbage truck — A heavy-duty vehicle, specially fitted with a hermetically sealed body and equipped with a hydraulic mechanism for loading, compacting, and unloading, used by urban sanitation services for collecting and transporting household waste to landfills or recycling centers.
• Autonoë — 1. A Theban princess in Greek mythology, the eldest daughter of King Cadmus (the founder of Thebes) and the goddess Harmonia, wife of Aristaeus, and mother of the ill-fated hunter Actaeon. Her name, literally translated as 'thinking for oneself' or 'self-minded', is tragically linked to the episodes of Dionysian frenzy where, seized by ritual madness driven by the gods, she joined her sisters in the dismemberment of her nephew Pentheus. 2. A small natural satellite of the planet Jupiter, discovered in 2001 and officially named after the mythological figure.
• Author's abstract — A detailed summary, schematic synthesis, or written report compiled by the author of a scientific paper or doctoral thesis, aimed at succinctly presenting the main theses, methodologies, and conclusions before an evaluation committee or the academic public. It represents a mandatory official document in the defense process of university degrees, reflecting the originality and value brought to the researched field.
• Tow truck — A heavy-duty motor vehicle specifically built and equipped to tow, haul, or transport other damaged, defective, or immobilized vehicles following road accidents. This technical machinery features reinforced structures, hydraulic winches, tilting platforms, and high-safety anchoring systems, being widely used in roadside assistance and recovery services.
• Self-propelled — Having the capability to tow, move, or propel itself using its own built-in mechanical systems and engines; self-propelled. In technical and military fields, it describes heavy machinery or artillery systems that do not require an external towing vehicle, possessing an autonomous motorized chassis.
• Winch truck — A utility motor vehicle or motorized platform structurally equipped with a heavy-duty hydraulic or mechanical winch, used for towing, lifting, or moving heavy loads, underground cables, or stalled vehicles. This machinery is used in roadside assistance, forestry logging operations, or the installation of public utility networks.
• Limber — The front part of a vehicle, agricultural machinery, or motor vehicle, comprising the front axle, steering wheels, steering system, and related suspension components. In a historical military context, it denotes a limber, a two-wheeled cart attached to the front of a gun or artillery carriage to allow its rapid towing by horses or motorized vehicles.
• Aylostera — A genus of perennial succulent plants in the Cactaceae (cactus) family, native to the high mountainous regions of Bolivia and Argentina, often structurally classified as a subgenus of Rebutia. These specimens are characterized by small globose stems arranged in dense clusters, featuring woolly areoles and spectacular, brightly colored infundibuliform flowers that arise delicately from the plant's base, being highly valued in horticulture for their increased structural resilience.
• Aylostera albiflora — A rare species of dwarf cactus native to the high mountainous regions of Bolivia, structurally characterized by minuscule globose stems forming dense clusters covered completely by fine, white, silky spines. Its specific name reflects the spectacular nature of its inflorescence, as the plant produces in spring delicate pearly white-pinkish flowers growing abundantly from the lower areoles, making it a highly sought-after piece in international succulent collections.
• Aylostera deminuta — A species of perennial dwarf cactus native to the arid rocky regions of Argentina and Bolivia, structurally recognized by its dark green cylindrical-globose stems covered with rigid brown or whitish spines. Its specific epithet emphasizes the reduced dimensions of the plant body, which compensates however with huge funnel-shaped, bright red or intense orange flowers arising delicately from the lower areoles, creating a striking visual contrast.
• Aylostera pseudodeminuta — A perennial species of dwarf cactus native to the mountainous and arid areas of Argentina, structurally classified as a close link within the Rebutia complex. The plant develops spherical or short cylindrical vibrant green stems covered with dense, brown or yellowish spines. Its specific name emphasizes the great morphological similarity to the deminuta species, from which it is delicately differentiated however by significantly larger funnel-shaped, brilliant bright red flowers that erupt abundantly from the lower areoles.
• Aylostera spegazziniana — A species of perennial dwarf cactus native to the mountainous provinces of Argentina, named in honor of the renowned botanist Carlos Luigi Spegazzini. The plant body is structurally formed of dark grey-green globose or short cylindrical stems, protected by short, pectinately arranged spines. It produces spectacular, deep red or scarlet funnel-shaped flowers that develop delicately from the side of the base, being recognized for its structural resistance to low temperatures during rest periods.